Raster Design3 GSG

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34003-010000-5000A January, 200

Autodesk

Raster Design 3

Getting Started


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iii

Contents

Part I Working with Raster Design

Chapter 1 Welcome to Autodesk Raster Design 3 . . . . . . . . . . . . . . . . . . . . . . 3

In This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Whats New in Autodesk Raster Design 3. . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Raster Design Basics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

When to Use Raster Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Who Should Use Raster Design? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

How to Use the Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Getting Started Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Online Tutorials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Raster Design Home Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Chapter 2 Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Minimum Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Minimum Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Hardware Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Network Installation of Raster Design. . . . . . . . . . . . . . . . . . . . . . . . 16

Using Raster Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Starting Raster Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Configuring Raster Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Accessing the Raster Design Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Image Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Command Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25


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Using AutoCAD Imaging Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Image Editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Image Insertion and Correlation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Image Manage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Using AutoCAD Commands on Your Images . . . . . . . . . . . . . . . . . . . . . . 27

Exiting the Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Chapter 3 Creating, Inserting, and Saving Images . . . . . . . . . . . . . . . . . . . . . 31

Creating New Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Inserting Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Pick Correlation Source Page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Modify Correlation Values Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Insertion Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Saving Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Exporting Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Chapter 4 Setting Image Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Setting Up Your Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Changing Layer, Color, Linetype, and Display . . . . . . . . . . . . . . . . . . . . . 46

Applying Transparency Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Masking Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Chapter 5 Image Editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Correlating Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Rubbersheeting an Image After Correlation . . . . . . . . . . . . . . . . . . . 55

Enhancing Images Using the Histogram Editing Filters . . . . . . . . . . . . . . 57

Enhancing Images Using Image Processing and Cleanup Commands . . . 61

Managing the Image Palette. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Selecting Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Rubbing and Cropping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Merging Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Chapter 6 Working with Raster Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Editing Raster Using REM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

REM Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Region Objects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Enhanced Bitonal Regions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76Selection Options for Enhanced Bitonal Region Objects . . . . . . . . . 77

Primitive Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82


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Using REM Objects to Edit Raster Images. . . . . . . . . . . . . . . . . . . . . . . . . . 84

Edit Mode Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Merging REM Objects into Existing Images . . . . . . . . . . . . . . . . . . . 86

Converting REM Objects to a New Raster Image. . . . . . . . . . . . . . . . 86

Merging Vector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Snapping to Binary Raster Entities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Chapter 7 Converting Raster to Vector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Vectorization Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

The Follower Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Using Vector Separation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Chapter 8 Converting Raster Text to AutoCAD Text . . . . . . . . . . . . . . . . . . 101

Converting Raster Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Part II Installation Guide

Appendix A Installing Raster Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Choosing Your Installation Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Single-User Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Network Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Network Deployment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Client Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Single User Deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Your Raster Design CD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

The Raster Design CD for Customers in the United States andCanada (Domestic) . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

The Raster Design CD for International Customers . . . . . . . . . . . . 118

Checking System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Minimum System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Hardware Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Requirements for Sharing Data in a Network Environment . . . . . . 120

Preparing for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Installation Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Unique Installation Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Installing Single-User Raster Design.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Installing Raster Design on a Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Associating Raster Design to Your AutoCAD Desktop . . . . . . . . . . 123

Raster Design Program Group Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Raster Design Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124


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Appendix B Licensing Raster Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Flexible Licensing Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Single-User Licensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Floating Licensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Network Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Registering Your Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Authorizing Raster Design for a Domestic Single User . . . . . . . . . . . . . . 128Authorizing Raster Design for an International Single User . . . . . . . . . . 129

Important License Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Understanding the License Folder . . . . . . . . . . . . . . . . . . . . . . . . . 130

Changing the System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Updating Components on a Licensed Computer or Installing a

New Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Uninstalling and Reinstalling Raster Design. . . . . . . . . . . . . . . . . . 132

Restoring from a Disk Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

License Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Raster Design Portable License Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Understanding License Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Viewing License Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Transferring a License . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

Adding a Computer to the Pool . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Exporting a License . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Importing a License. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

Modifying the Pool of Computers . . . . . . . . . . . . . . . . . . . . . . . . . 138

Specifying Portable License Utility Options . . . . . . . . . . . . . . . . . . 139

Licensing Raster Design on a Network. . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Using the License Manager Settings Utility . . . . . . . . . . . . . . . . . . . . . . . 140

Appendix C Supported Image Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Supported Image Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Appendix D Raster Design Command Summary . . . . . . . . . . . . . . . . . . . . . . . 145

Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171


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Part 1

Working with Raster Design


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2 | Part 1 Working with Raster Design


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4 | Chapter 1 Welcome to Autodesk Raster Design 3

Raster Design 3 allows you to convert scanned paper drawings, blueprints,

aerial photographs, and mapsinto data you can edit and manage inAutoCAD drawings. You can insert binary, grayscale, and color raster images

into your AutoCAD drawings, then correlate, edit, manipulate, convert, save,

and export the data.

This release can increase your efficiency and accuracy by providing improved

access to tools and commands, a full array of vectorization tools, and the

ability to share image and correlation data on the Internet.

In This Manual

The purpose of this manual is to provide you with the information you need

to get started with Raster Design. Part 1 presents the fundamentals of

Raster Design 3. Part 2 provides installation, licensing, and upgrade informa-

tion. Appendix C lists raster image formats supported by Raster Design. The

glossary provides definitions of terms used with the software.

The rest of this chapter describes:

s New features in this release

s Basics of using raster and vector images with Raster Design and AutoCAD

s How to use the software and documentation

You will find detailed documentation online in the form of tutorials and a

Users Guide in Help. This section describes how to use all the documenta-

tion, printed and online.

Whats New in Autodesk Raster Design 3

Autodesk Raster Design 3 is the most powerful imaging application yet. With

new features, you can improve the appearance and standardize the use of

color images, and interactively convert scanned text to AutoCAD text.

Improved features also allow you to correct distortions in images with greater

accuracy.


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Whats New in Autodesk Raster Design 3 | 5

Whats New in Autodesk Raster Design 3

To use Autodesk Raster Design 3, you must have AutoCAD 2002 or another

AutoCAD product, such as Autodesk Map5, installed on your computer.

Function Feature Enhancements

Optical CharacterRecognition (OCR)

TextRecognition

You can convert the raster text in your images toAutoCAD text or AutoCAD Mtext. The Text

Recognition command recognizes both machine-printed text and hand-printed text displayed astext or in a table in the image.

Improvedinstallation options

MSI Installer Improved installation technology gives you morepower over the installation process. For instance,

you can now simultaneously install to multipleinstallations of AutoCAD or Autodesk desktops.

Improved imagecontrast

TonalAdjustment

The Tonal Adjustment tab on the Histogramdialog box allows you to Adjust the imagecontrast in a non-linear fashion by using a curve.This allows you to add detail to the darker regionsof the image without changing the contrast of

the mid-tones, and vice versa.

Color palettemanagement

PaletteManager

The Palette Manager allows you to manipulateindividual colors and entire palettes for 8-bitimages. The Palette Manager can determinewhich colors are actually being used, change anexisting color to a different color, combine severalcolor indices into a single mapped color,compress the palette, and even import andexport palettes.

Improvedrubbersheeting

Rubbersheet The Triangular method uses the control pointsyou enter to triangulate the image, then performs

a series of small, error-free, transformations onthose areas. New grid selection techniquesimprove the efficiency of selecting control pointsby allowing you to create a custom grid ofdestination points.


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Raster Design Basics

You can use Raster Design to edit and manage raster data.Raster data is a

series of dots, or pixels, that represents an image. This type of data is

produced when you scan a paper drawing, blueprint, or photograph.

There are three types of raster images:

Vector data, on the other hand, is a group of mathematical equations that

generates lines, arcs, and other AutoCAD objects. Vector data is typically

made up of points which are used to define precise geometric shapes. This

type of data is produced when you draw objects in AutoCAD.

If you use AutoCAD without Raster Design, you can insert raster images into

a drawing and modify image display values such as brightness and contrast.

However, you need to use a raster editing program like Raster Design to do

any of the following:

s Permanently edit the raster data of your images

s Insert images that include correlation data into a drawings Save images to another format

s Export images to create external correlation files

Binary Two-color line drawings, also called bitonal

Grayscale An image with several different shades of gray, such as a scanned blackand white photograph

Color An image with multiple colors, such as a color satellite image

Raster Vector


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Raster Design Basics | 7

Key Concepts: Raster Design Basics

s In Raster Design, image frames, also called boundaries, are defined as

AutoCAD objects, which means you can assign a frame to a layer and

change its color.

s In this documentation, the term raster entities refers to the lines, arcs, and

circles, including text, that make up a binary raster image.

Raster entities

s Raster data refers to the pixels that make up a binary, grayscale, or color

image. All references to a raster image refer to an image file or to the repre-

sentation of that image after it is inserted into an AutoCAD drawing.

s Converting raster to vector makes modifying a drawing easier and may

result in reducing the total file size of your project. After you convert raster

data to vector entities such as lines or polylines, you can edit the vector

entities using AutoCAD commands. To convert raster to vector, you can

use the Raster Design vectorizationtools.

s You can use theRaster Design REM commands to edit individual raster

entities and raster areas directly. You can create a selection set of a raster

area or raster entities, and then you can move, copy, or delete the selection

set using native AutoCAD commands.

s You can use vectorization tools to convert raster data to vector.

Vectorization tools replace raster geometry with vector geometry that can

be manipulated like any other AutoCAD objects, and vectorization tools

can even remove the raster data as you proceed.

Each line, circle,

and arc in a binary

raster image is a

raster entity


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When to Use Raster Design

You can use Raster Design to:

s Insert images that respect correlation information from various sources

s Permanently adjust image brightness and contrast, convert color images

to grayscale, and convert color and grayscale images to binary imagesallby using a histogram

s Trace the raster lines, arcs, circles, or even contours on a binary raster

image, converting the raster geometry to vectors interactively or semi-

automatically

s Modify the display order of images

s Merge two or more raster images

s Remove parts of images

s Merge vectors into a raster image

s Read, save, and export images to different names, locations, and formats

s Move, delete, and copy binary raster entities and areas on raster images

using the REM (raster entity manipulation) commandss Make vector additions to raster entities by using raster snap modes to snap

the new vectors to existing raster entities

s Correlate images with AutoCAD coordinates or vectors

s Select a color in an image and make it transparent

s Clean up areas in raster images such as blueprints and floor plans

s Correct distortions in images

Who Should Use Raster Design?

Anyone who wants to edit, manage, and correlate raster images with

AutoCAD can benefit from the capabilities of Raster Design.

Architects To incorporate photographs and old hand-drawn plans into newvector data for planning and presentation purposes beforeremodeling, renovating, or doing historic reconstruction.

Cartographers To take advantage of real-world coordinate support. Whenrunning on AutoCADs GIS based desktops, such as AutodeskLand Desktop 3, and Autodesk Map5, Raster Design gives youthe ability to perform coordinate transformations.

Environmental

specialists

To generate groundwater contours, locate wells, plot

contamination values, and use scanned soil maps and geo-referenced data for support of risk assessment.


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How to Use the Documentation | 9

How to Use the Documentation

The Raster Design documentation set is divided into three main categories:

s ThisGetting Startedmanual highlights the features of Raster Design withkey concepts, and directs you to the online tutorials and Help, as appro-

priate, for greater detail.

s The online tutorials contain lessons to familiarize you with how

Raster Design works. The lessons include actual drawing files for you to

work on. It is recommended that you run through the tutorials for an

understanding of how the Raster Design features are applied to real life

scenarios.

s The Help contains all the information you need to work with raster and

vector images.

Geo-explorationspecialists andengineers

To use remote sensing data for exploration planning, stratamapping, and geo-technical applications.

Land planners To integrate imagery, maps, and terrain models into base mapsthat depict change analysis.

Mechanicalengineers

To easily update scanned drawings using raster entitymanipulation (REM) commands.

Photogrammetricand RemoteSensing Firms

To use many image formats, including GeoTIFF and GeoSPOT.Also, to use rubbersheeting and other correlation commands tointegrate images into base maps.

Resource managers To use remote sensing data, scanned forest cover-type maps andsoil maps, and geo-referenced data and images for impact studiesin forestry, soil science, hydrology, and wildlife management.

Surveyors To perform deed analysis using images for photogrammetriccontrol by using the vectorization tools to convert raster to vector.

Town, city, county,municipal andstate mappingagencies

To use scanned tax maps and ordinance surveys as references fordetailing city systems and GIS tasks.


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Getting Started Guide

When a feature is described in this guide, the associated dialog box is shown

along with instructions for using it. Key concepts summarize the features

main points, and brief procedures outline step by step how to use the feature

and direct you to topics in the online documentation.

If you needed to insert an image, for example, you might check the table of

contents or the index. You would find that Chapter 3 contains the informa-

tion you need, with numbered steps to follow to complete the task. Some

steps include references to the Help.

For example:

In the left margin of many sections in this manual, you will see the following

format that contains topics in Help with more information.

To insert an image

Step Use to locate

1 Select Image Insert.or

type iinsert.

Inserting Images

Inserting Images

Correlating ImagesDuring Insertion

Search Help for


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Help

The Help files can provide you with detailed reference information about

options, commands and dialog boxes. You can access Raster Design Help files

by using several different methods. Each method takes you to a different

place in the Help file, and each method has its own benefits.

Many topics in online Help feature three tabs that separate the information

into three content types. The default tab displays conceptual information

about the feature, the second tab displays procedural information, and thethird tab displays reference information. To move between tabs, simply click

the new tab.

Accessing Help

Method Result Benefits

From the programgroup, select theRaster Design Help Filesicon.

or

Select Image Help.

Displays a help windowwith two panes. Thenavigation pane, on theleft, includes Contents,Index, and Search tabs.Use these tabs todisplay information inthe topic pane on the

right side of the Helpwindow.

This method can be useful whenyou are not sure which topic hasthe information you need. Sincethe navigation pane remains openwhile you view the topic, thecontext in which the current topicis located will often direct you tothe information you need.

Click the Help buttonwhen you have a dialogbox open.

Displays the Help topicthat describes theoptions in the dialogbox.

This method takes you directly tothe information you need while

you have the dialog box open.

Press F1 when you are inthe middle of running acommand and thecommand line prompts

you for input.

Displays the Help topicthat describes thecommand you arerunning.

This method takes you directly tothe information you need while

you are using a command.

From the Image menu,select a command andpress F1.

Displays the Help topicthat describes theselected command.

This method takes you directly tothe information you need.

Click a Help button in adialog box.

Displays the Help topicthat describes theoptions in the dialogbox.

This method takes you directly tothe information that you needwhile you have the dialog boxopen.


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The following procedure describes how to locate a topic title in the Help file.

To use Help to locate Raster Design Help topic titles

Steps

1 Select Image

Help to display the main Help contents window.

2 Click the Search tab.If you have not previously used the Search tab.

3 Type the keywords you want to search for, then click List Topics.

Topics with a similar title are listed.

4 Click the name of the topic you want to locate, and then click Display to view theHelp topic.

5 When the Help topic is displayed, you can print the topic by selectingOptions Print Topic or you can view related topics by clicking the blue,underlined text.


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Key Concepts: Help

When you open the Help file, the Help window is divided into two panes.

On the right is the navigation pane, where the Contents, Index, Favorites,

and Search tabs are displayed. Main topics are indicated on the Contents tab

by book icons. If you double-click, or open, the book icon, individual topics

are displayed under each book. To view a topic such as Insert Images, select

the page icon.

s The Help window has four tabs: Contents, Index, Favorites, and Search.s Click the Index tab to view a list of Help topics. You can click any index

entry to view the topic for that entry. If more than one topic shares the

same index entry, then you can choose the topic that you want to view.

s Click the Search tab if you want to search for specific words, for example,

to search for Help topic titles that are listed in this guide.

s With a topic open, you can move to other relevant topics or definitions

by selecting the blue, underlined text.

s You can click Back to move back to the previous topic.

Online Tutorials

Each Raster Design tutorial contains a series of related lessons. A folder

containing the images and drawings used in the lessons accompanies each

tutorial.

In each lesson, you work with various images to explore particular features

of Raster Design. The lessons are organized based on how you would typi-

cally work with the those types of images. You can complete the lessons in

any order you choose. The images and drawings used in later lessons do not

require you to have completed the earlier lessons.

As in online Help, most tutorial topics feature two tabs that separate the

information into different content types. The default tab displays procedural

information, while the second tab displays conceptual information about

the feature. To move between tabs, simply click the new tab.

You can access the tutorials by selecting Help on the Image menu and

choosing Raster Design 3 Tutorials.


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Raster Design Home Page

If you have an Internet connection, then you can find additional informa-

tion about Raster Design on the Raster Design home page. The Raster Design

home page includes information about technical support, purchasing infor-

mation, and how to access the Raster Design news group.

To access the Raster Design home page

Step

1 Select Image Raster Design Home Page.

or

Click the icon on the Raster Design toolbar.

or

Open http://www.autodesk.com/rasterdesignuserfrom your Web browser.


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1

2Getting Started

Raster Design can read scanned and photographic

images, including GeoSPOT satellite images and wavelet

compressed images. More than 80 percent of the worlds

engineering drawings still exist as paper drawings,

which are sometimes damaged or misfiled and can be

difficult to update. Raster Design provides an effective,

low-cost method for archiving and updating these

drawings.

In this chapter

s Minimum System Requirem

s Starting and configuring

Raster Design

s

Accessing the Raster Desigcommands

s Using Raster Design and

AutoCAD together

s Using AutoCAD commands

your images


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16 | Chapter 2 Getting Started

To use Raster Design, you must convert your paper drawing to raster data.

You can use a large document scanner, a desktop scanner, or a hand-held

scanner to save the raster image to a file type that Raster Design can read. File

size is determined by the scan resolution (dots per inch), the file format, the

complexity of the drawing, and the size of the paper drawing being scanned.

Minimum Requirements

To run properly, Raster Design 3 requires a minimum of the following hard-

ware and software. If your computer does not meet the minimum require-

ments, upgrade your computer before installing any software, to avoid

problems later.

Minimum Requirements

One of the following AutoCAD 2002-based products:

s AutoCAD 2002

s Autodesk Architectural Desktop 3.3

s Autodesk Land Desktop 3

s Autodesk Map 5

s AutoCAD Mechanical 6

s Autodesk Mechanical Desktop 6

Hardware Requirements

You should have 75 MB of disk space available in addition to the minimumsystem requirements of AutoCAD 2002, or the AutoCAD 2002-based product

upon which Raster Design is installed.

Network Installation of Raster Design

System administrators planning to install Raster Design on a network must

have TCP/IP installed and functioning on the computers that are running

Raster Design.


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Using Raster Design | 17

Using Raster Design

You can use Raster Design to insert, edit, correlate, and convert raster images

in any AutoCAD drawing.

Using Raster Design you can:

s Update existing paper drawings by scanning them, then adding vector

information or editing the raster entities.

s Insert tiled quadrant sheets into a drawing using the correlation data

saved within the files.

s Convert a grayscale contour map to a binary image you can then vectorize

and use to create a digital terrain model surface.

s Correlate images so that they are positioned correctly within the

AutoCAD coordinate system.

s Move, delete, and copy binary raster entities and areas on raster images.

Starting Raster Design

Raster Design runs seamlessly with AutoCAD. The Raster Design setup

program automatically creates an icon that you can use to start both

programs.

NOTE For complete instructions on installing Raster Design, see Appendix A,

Installing Raster Design on page 109.

To start the Raster Design programs

Steps Use to locate

1 To initialize AutoCAD and Raster Design, select theRaster Design icon.

2 Select Image Insert to insert an image or selectImage Options to configure Raster Design.

Inserting Images

Configuring Raster Design


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The options in the Raster Design Options dialog box control Raster Design

settings, paths, memory, and the default correlation information for new

images, image masks, and vector merge. These settings affect the entire draw-

ing and all images that are inserted into the drawing.

To access the Raster Design Options dialog box, and select ImageOptions,

or type ioptions.


Search Help for


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Configuring Raster Design | 19

Key Concepts: Configuring Raster Design

You use the Raster Design Options dialog box to configure Raster Design. The

dialog box consists of the following tabs:

s Paths sets the path for correlation files and the AutoPaste feature.

s User Preferences controls image detachment, message display options,

and the mouse settings. This tab also allows you to set default Startupoptions.

s Feature Settings sets the option to save a thumbnail with your image. This

tab also controls locking settings, Remove Under settings, and the

rub/crop line width.

s Image Defaults sets the default correlation information for an image, such

as insertion point, scale, rotation, and density value.

s Memory specifies a temporary swap file for Raster Design to use if it runs

out of RAM. This tab also allocates the amount of system RAM to be used

for images.

s New Image sets the default values for the creation of a new image, includ-

ing image properties and default color type.s Vector Merge sets the default behavior for future vector merge operations,

including expanding an image and respecting the display order.

s REMsets the default properties for REM Objects, including clipboard set-

tings and REM Object color.

s Raster Entity Detection sets the default values for detecting various types

of raster geometry using either single-pick or multi-pick methods.

s Image Masksets the default property values for future image masks,

including turning the mask on and off, showing how the mask affects the

images in the drawing, and defining the mask boundary.

s VTools General sets the default options for most of the vectorization tools,

including the removal method; Line, Circle, Arc and Polyline settings; and

the vector separation table which allows you to assign layers and polyline

widths based on the width of the raster being traced.

s VTools Follower sets the default options for the follower-enabled vector-

ization tools, including the follower color, and the settings for contours

and 3D polylines.


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Accessing the Raster Design Commands

You can access the Raster Design commands from the Image menu, the

shortcut menu, the toolbar, or the command line. We suggest you experi-

ment with all options to determine which you prefer.

Image Menu

All Raster Design menu commands are located in the Image menu. The fol-

lowing chart outlines the commands you can access through the Image

menu, with sources for more information.

Image menu commands

Command name Functions

New Displays the New Image dialog box, which you can use to definethe frame and properties for an image you want to create.

In this manual: see Creating New Images on page 32.

Related Help topics:

s Creating New Imagess New Image Tabs New Image Dialog Box

Insert Displays the Insert Image dialog box that is used to insert imagesinto your current AutoCAD drawing.

Here you can also access the Correlation Function, which alsoallows easy image correlation through the Correlation Wizard.

In this manual: see Inserting Images on page 34.


s Insert Image Dialog Boxs Inserting Imagess Correlating Images


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Accessing the Raster Design Commands | 21

Save, Save As, andExport

Commands that you can use to export an image to a different fileformat, save an image without saving the drawing, save an imageto another file name, location, or file type, or export the

correlation data associated with the image.

In this manual: see Saving Images on page 39 and ExportingImages on page 40.


s Saving an Image by Exportings Saving Imagess Saving an Image to Another File Name, Type, or Location

Correlate Commands you can use to correlate your image, by matching,moving, scaling, or rubbersheeting.

In this manual: see Correlating Images on page 54.Related Help topics:

s Changing the Image Scale and Rotations Moving an Images Deskewing an Images Scaling an Images Rubbersheeting an Image

Manage Displays the Image Manage dialog box you can use to displayinformation about images or insertions, to change display order of

your insertions, to zoom to an image, to erase an image, tochange the active or saved path, and so on.

In this manual: see Setting Up Your Data on page 44.


s Managing Imagess Managing Images and Insertions

Cleanup Commands you can use to correct errors that may occur duringthe scanning process. You can deskew, despeckle, invert, mirror,or adjust an images bias.

In this manual see: see Enhancing Images Using ImageProcessing and Cleanup Commands on page 61.

Related Help topics:s Modifying Imagess Cleaning Up Images

Image menu commands (continued)



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Image Processing Commands you can use to enhance the appearance of yourimage or convert an image to a different image type: histogram,convolve, bitonal filters, Change Density, Change Color Depth,

and Palette Manager.

In this manual: see Enhancing Images Using Image Processingand Cleanup Commands on page 61.


s Modifying Imagess Image Processing

Raster EntityManipulation

Commands you can use to define and manipulate raster entities.REM edits binary, color, and grayscale raster data. Unlikecommands such as mirror, histogram, and invert, which operateon a whole image, REM commands can be used to edit small

sections of an image.

In this manual: see Editing Raster Using REM on page 72.


s Modifying Imagess Overview of Raster Entity Manipulation (REM) toolss Manipulating a REM Object

Mask Displays the New Image Mask dialog box that is used to create amask.

In this manual: see Masking Images on page 50.


s Modifying Imagess Masking Images

Crop Commands you can use to crop images. Options are provided for cropping a line, a circular region, a rectangular region, a diagonalregion, and a polygonal region.

In this manual: see Rubbing and Cropping on page 65.


s Modifying Imagess Cropping Images




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Accessing the Raster Design Commands | 23

Remove Commands you can use to rub a raster line, rub multiple linesegments, rub a donut, rub an arc, rub within a polygon region,rub within a diagonal region, rub within a rectangle region, or

remove using existing geometry.

In this manual: see Rubbing and Cropping on page 65.


s Modifying Imagess Rubbing Images

Merge Commands you can use to merge images or vector data, andselect raster pens widths.

In this manual: see Merging Images on page 68.

Related Help topics:s Modifying Imagess Merging Imagess Merging Vectors into a Raster Image

Vectorization Tools Commands you can use to convert a raster arc, circle, text, line,polyline, rectangle, or contour to vector.

In this manual: see Converting Raster to Vector on page 91.


s Converting Raster Entities to Vector

Recognize Text Commands you can use to convert raster text to AutoCAD text.

In this manual: see Converting Raster Text to AutoCAD Text onpage 101.


s Changing Text Using Text Recognition

Snap Displays the Raster Snap tab you use to set the snapping mode.

In this manual: see Snapping to Binary Raster Entities onpage 88.

Related Help topics:s Raster Snappings Raster Snap Tabs Specifying Raster Snap Settings




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Toolbar

With the Raster Design toolbar, you can access commands quickly. When

you pass your mouse over a tool icon, the name of the tool is displayed so

you can find out what the tool is used for. More detailed information about

a tool, such as the equivalent command you can type on the command line,

is displayed on the AutoCAD status bar at the bottom of the screen.

If you close a toolbar and want to display it again, hold the pointer over anytool in an AutoCAD toolbar and right-click, then select the toolbar you want

from the shortcut menu.

Toggle Frames Changes the visibility of the image frame.


s Configuring Raster Designs Changing the Image Frame Visibility

Toggle Quick Bar Changes the visibility of the Quick Bar.


s Configuring Raster Designs Changing the Quick Bar Visibility

Options Displays the Raster Design Options dialog box that you can use toconfigure Raster Design.

In this manual: see Configuring Raster Design on page 18.


s Raster Design Options Dialog Boxs Configuring Raster Designs Setting the Options

Help Displays the Raster Design Users Guidein Help.

Raster Design HomePage

Opens the Raster Design home page on the Internet, if you havean internet connection and browser:

http://www.autodesk.com/rasterdesignuser

About Raster Design Displays Raster Design licensing information.



Raster Design Toolbar

Search Help for


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Using AutoCAD Imaging Commands | 25

Command Line

You can run most Raster Design commands by typing their names on the

command line. Many Raster Design commands start with the letter i. For

example, to run the histogram command, type ihistogram on the command

line.

For a detailed list of all the Raster Design commands, see Appendix D,

Raster Design Command Summary on page 145 in this manual.

For each topic that is described in Help, the menu path for the command is

listed as well as the command line equivalent.

Using AutoCAD Imaging Commands

AutoCAD imaging commands and Raster Design commands are fully

compatible with each other. The primary differences between them are basedon their image editing capabilities and the methods they provide to insert,

manage, and correlate images.

AutoCAD has basic imaging commands you can use to insert images, clip

images, and adjust image appearance.

NOTE AutoCAD commands are shown in UPPERCASE. Raster Design com-mands have an initial capital letter, for example, Histogram. When you type a

Raster Design command on the command line, the letteri precedes thecommand name.

AutoCAD command What you can use it for

IMAGE Attach, detach, load, reload, and unload images.

IMAGEADJUST Adjust the brightness and contrast of an image, and fadethe image (display-only adjustments).

IMAGEATTACH Attach (or insert) images.

IMAGECLIP Clip an image so that only a selected polygonal area of the image is displayed.

IMAGEQUALITY Change between high and draft display modes.

IMAGEFRAME Turn frames on and off.

TRANSPARENCY Turn transparency on and off.

Use AutoCAD Commandson Images

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The next sections describe the differences between AutoCAD imaging

commands and Raster Design commands.

Image Editing

Using the AutoCAD imaging commands, you can modify image display

values such as brightness and contrast, and you can clip an image so thatonly part of the image is displayed in the drawing. However, these adjust-

ments affect only how the image appears in your drawing. You cannot use

AutoCAD by itself to permanently edit the image pixels.

Raster Designwas designed to work with AutoCAD so that you can perma-

nently edit your images. For example, if you make adjustments to the

brightness and contrast of an image using the Raster Design Image Editing

Filters Histogram (ihistogram) command, you can save the edits to the

image file itself. Then, whenever you open a drawing that contains that

image file, the image appears with the correct brightness and contrast values.

If, on the other hand, you use the AutoCAD IMAGEADJUST command toadjust the brightness of an image and you have the same image inserted intoanother drawing, you must repeat the same changes to the image in the

other drawing.

Image Insertion and Correlation

Images you insert using the AutoCAD IMAGE command are completely com-

patible with images you insert using the Raster Design Image Insert

(iinsert) command. For example, if you insert images using the Raster Design

Insert command and you then save the drawing, the images are displayed

and correlated if you open the drawing using AutoCAD without

Raster Design.

Unlike AutoCAD, Raster Design respects correlation from various sources.

Whenever you insert an image using the Insert, Raster Design searches for

correlation files that are associated with that image. Then you can decide

which source to use.

These correlation sources include correlation that was saved in the image file,

resource files, world files, and the defaults that you specify in the

Raster Design Options dialog box. Using AutoCAD alone, you must manu-

ally specify the correlation data.


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Using AutoCAD Commands on Your Images | 27

Image Manage

AutoCAD stores only one definition of each image you insert into a drawing,

even if you have multiple copies of the same image in the drawing. The def-

inition is referred to as the image, while each copy is referred to as an insertion.

You can manage the images and insertions in your drawing using the

Raster Design Image Manage (imanage) dialog box.

Using the Images tab of the Image Manage dialog box, you can attach,

detach, load, and unload images. Attaching an image is equivalent to insert-

ing an image. Unloading an image removes the image from memory, speed-

ing up system performance.

Using the Insertions tab of the Image Manage dialog box, you can change the

display order of the images, zoom to an image, and erase an image from the

drawing. Each image you insert into the drawingwhether it is a copy of an

image or an unnamed image you created by merging two images together

is listed in the Image Manage dialog box. This is helpful if you have more

than one copy of an image in your drawing.

Key Concepts: Imaging Commands

s When you use the AutoCAD IMAGEATTACH command, you attach an

image to the drawing. If this terminology sounds familiar to you, it is

because AutoCAD uses a similar attach option to link xrefs to an

AutoCAD drawing.

s You cannot actually edit the raster data of an image using AutoCAD with-

out Raster Design. To permanently edit an image, you must use an image

editing program like Raster Design.

Using AutoCAD Commands on Your Images

Because image frames are treated as AutoCAD objects, you can modify your

images using many of the AutoCAD commands you already know, such as

MOVE, COPY, ROTATE, and SCALE.

Using AutoCAD grips, you can select image frames and vectors and then

choose an editing command. You can edit both raster images and vector

objects at the same time by including both in your selection set.


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NOTE You can use the AutoCAD UNDO command for up to ten Raster Design

image edits. This limit applies to edits that actually change raster data, not to

display-only changes. Some of the commands that are affected by this limit are

REM, Histogram, Rub, Crop, and Rubbersheet.

This table lists some frequently used AutoCAD commands.

AutoCAD command What you can use it for

REGEN Restore the correct display order of images. When you editan image, the image is placed on top of any other images orvectors in your drawing. Use the AutoCAD REGEN commandto restore the images to their correct order.

LAYER Control the display of images. You can insert each image ona different layer and then use the LAYER options to turn theimage layers on or off, freeze them, change their colors, or

lock them to prevent the images on them from beingedited.

ZOOM and PAN Zoom to images and pan across images.

UNDO Undo the effects of a Raster Design command.

DVIEW Rotate the UCS to any degree to view the images at adifferent angle.

NOTE You cannot edit an image if you use the VPOINTcommand to change the drawing viewpoint to anythingother than 0,0,1.

PLOT Plot an image.

GRIP EDIT Edit an image using grip editing commands.

SCALE Scale a REM Object.

OSNAP(s) Snap to image frames and REM objects.


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Using AutoCAD Commands on Your Images | 29

Exiting the Programs

When you have completed your editing session, you can exit AutoCAD and

Raster Design, or you can start a new editing session by opening an existing

drawing or creating a new drawing.

You can exit AutoCAD and Raster Design by using any of the followingmethods:

s Select File Exit.

s Type exit or quit.

s Click the close box in the upper-right corner of the AutoCAD window.

When you exit, you will be prompted to save your drawing and any edits you

have made to the images. Any image correlation information, such as inser-

tion point, scale, and rotation, is saved in the drawing file. Any edits you

have made to the images are saved in the image files.

NOTE Use the Image Export (iexport) command if you want to save the

correlation information to a separate file.

You have the option to save edits you made to your images, or you can dis-

card any unsaved edits by skipping over a specific image you edited. The

Save Image dialog box is displayed when you save or exit a drawing with

images you have edited.

You can use these options to save all edited images, skip all edited images, or

save selected images before exiting the programs.


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3

3Creating, Inserting, and

Saving Images

After you are familiar with the basics of Raster Design,

you are ready to begin working with your images.

This section describes the various methods of saving

your image data, so that your image files are in the

correct format when they need to be used again.

In this chapter

s Creating new images

s Inserting raster images into

AutoCAD drawings

s

Saving imagess Exporting your data


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32 | Chapter 3 Creating, Inserting, and Saving Images

Creating New Images

You can create a new blank image that you can use with the Image Merge and

Vector Merge commands. When you create a new image, you begin by defin-

ing an image frame. After you have created a new image, you must save it to

establish a link between the drawing and the image file.

To create a new image with Raster Design

Steps

1 From the menu, select Image New.

2 In the New Image dialog box, click Pick and specify two points on the screen to drawa frame.

3 In the AutoCAD Properties section, enterthe correlation information insertion point,scale, and rotation.

Creating New Images


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Creating New Images | 33

Key Concepts: Creating a New Image

s You can create a new image that contains binary, grayscale, indexed color,

or true color.

s You can preview the properties of the new image before you insert it.s You can create a new image using the Raster Design Image New (inew)

command.

s You can turn off Show This Dialog to access the command line interface.

4 In the Color Type section, choose one of the following options when you create anew image:

s Bitonal. Image that contains only two colors.s Grayscale. Image that contains up to 256 shades of gray.s Indexed Color. Image that contains up to 256 different colors.s True Color. Image that contains over 16.7 million colors. This type uses more

system resources.

5 In the Image Properties section, specify the width and height of the new image inpixels per unit of measurement.

6 Enter a value to define the density of the new image.

7 Turn off Show This Dialog to access the command line.

8 Use the default insertion point coordinates you set in the Raster Design Options

dialog box.

9 Type inew to define the properties of the image that you want to create. When youwant to define the properties for more than one new image, use the New Imageconfiguration tab on the Raster Design Options dialog box.

To create a new image with Raster Design (continued)

Steps


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Inserting Images

You can insert any number of raster images into an AutoCAD drawing. When

you insert an image, it is placed in a frame, and a link is created between the

drawing and the image file.

When you insert one image with the Raster Design Image Insert (iinsert)

command, the Insert Image dialog box is displayed. On the right side of the

dialog box, you can preview the image and information such as file type,

color depth, density, and so on. The column of folders along the left side of

the Insert Images dialog box is called thePlaces List. It contains shortcuts to

local folders such as yourFavorites folder orMy Documents folder (orPersonal

folder, depending on which operating system you are using).

The Places List also includes aHistoryfolder which displays the folders you

have used most recently.

If you have Microsoft Internet Explorer (version 4.71 or higher), and access

to the Internet, you can open image files from the Internet. There are several

ways to access images from the Internet:

s Click the Search the Web icon at the top of the dialog box to display the

AutoCAD Web browser, with which you can specify an Internet location

and select an image to insert.

s Click the Buzzsaw icon in the Places List to access projects hosted on

Buzzsaw.com.s Click the FTP icon to browse FTP sites and select an image to insert.

Inserting Images

Search Help for

Inserting an Image Fromthe Internet Using theInsert Image Dialog Box

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Inserting Images | 35

When you insert an image, that image must be correlated in the drawing.

Correlation is simply a means of positioning the image using known

coordinates.

You can correlate your inserted image in three different ways during the

insertion process as shown in the following illustration.

Show Frames Only and Zoom to Image are always available and are indepen-

dent of Correlation. If you select Show Frames Only, only the image frame

will be inserted into your drawing. If you select Zoom to Image, Raster Design

zooms to the extents of the image after it is correlated.

You can use Quick Insert for automatic correlation during image insertion.

Quick Insert uses the highest order correlation source available to perform

the image insertion. There are no options to specify with Quick Insert; the

image is simply inserted after you click Open on the Insert Image dialog box.

You can change the default correlation information by using the Image

Defaults tab on the Raster Design Options dialog box.

For the new or intermediate Raster Design user, the Correlation Wizard is rec-

ommended. Because the Wizard goes through the correlation process step by

step, it helps you to understand the different correlation options required for

proper image insertion. The Correlation Wizard is the default Insert Option.

You can use the Correlation dialog box if you are an experienced user andwant to quickly establish correlation parameters with minimal keystrokes. If

you are unsure about the correlation options required for proper image inser-

tion, you may want to use the default, the Correlation Wizard. If you choose

to use the Correlation dialog box, any changes you make are incorporated

the next time you use the correlation feature.

If you choose the Correlation Wizard, or the Correlation dialog box, you are

prompted with three pages:

s Pick Correlation Source

s Modify Correlation Values

s Insertion

If you are running Autodesk Map or Autodesk Land Desktop, you will also be

prompted with the Transform Page.

Correlating ImagesDuring Insertion

Transform Page

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Pick Correlation Source Page

When you insert an image, Raster Design searches for all available correla-

tion files for the image and displays them in the Correlation Source list.

Depending on what type of image you are inserting and whether or not a

resource file or a world file exists for the image, you might see the following

sources listed.

s Image File: For certain types of images, correlation data can be saved as

part of an image file. These file types include RLC, IG4, IGS, GeoTags in

GeoTIFF, or HDR File in SPOT.

s Resource File: Can be created by the Raster Design Export command or

previous versions of Raster Design ESP. Resource files have an .res file

extension.

s World File: Can be created by the Raster Design Export command for all

image formats. World files have different file extensions, depending on

file type.

s Image Defaults: The values you set in the Raster Design Options

dialog box.

The information displayed on the Pick Correlation Source page reflects the

values stored in the correlation source you have chosen.

Pick CorrelationSource Page

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Inserting Images | 37

Modify Correlation Values Page

You can use the Modify Correlation Values Page to specify the correlation

values of insertion point, scale, and rotation for a specific insertion.

Although you start with the values read from the correlation file and then

modify them for a specific image insertion, the original correlation values

stored in the file are not modified.

NOTE If you are running Raster Design on Autodesk Map or Autodesk Land

Desktop, Density Units appear only if a global coordinate system is not set.

You can modify the correlation source values by entering new values or by

pasting values from the clipboard.

Insertion Page

You can use the Insertion Page to view and change the AutoCAD insertionpoint, scale, and rotation after any unit conversions have been applied.

You might need to change an images scale by reducing or enlarging it. For

example, you may want to change a scale in reference to the zoom factor you

are using in AutoCAD.

Modify CorrelationValues Page

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Insertion Values Page

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The Insertion page is used when you want to apply a coordinate system

transformation. You may change the existing values by entering new ones or

by manually picking coordinates from the screen. You can also change the

color of the image.

With the Raster Design Insert command, you can insert several images at the

same time. When you select more than one image to insert, the default

correlation information (from a resource file, world file, image file, or inser-

tion defaults) is used to automatically position the images. This option isvery useful when you have a group of images, such as tiled quadrant sheets,

that have correlation data stored with the images.

Key Concepts: Insert

s You can insert binary, grayscale, and up to 32-bit color images.

s You can preview an image and view its statistics before you insert it.

s You can insert images using either the Raster Design Image Insert

(iinsert) command or the AutoCAD IMAGE command. However, if you

want to insert an image using a correlation source such as a resource or

world file, then you must use the Raster Design iinsert command.s If you set the AutoCAD FILEDIA variable to , then you can bypass the

Insert Image dialog box when you insert an image. After you enter the

Insert command on the command line, simply type the name of the

image you want to insert.

Inserting Images

Inserting an Image Usingthe Command Line

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Saving Images | 39

Saving Images

There are a few methods you can use to save an image you have edited. One

method is to save your drawing file using the AutoCAD SAVEcommand.

With this command, you will be prompted to save the images you have

edited. Because there is a link between the drawing and the image files, theimage data is not stored in the drawing file, but in a separate file on disk.

You can also choose to save an image without saving the drawing file by

using the Image Save (isave) command. You can use this command to save

more than one image at a time.

If you want to save an image to a different name, file type, or location, then

you can use the Image Save As (isaveas) command. Using this command,

you can convert a read-only file to a file you can edit.

Key Concepts: Saving Images

s When you save your drawing using the AutoCAD SAVEcommand, the

correlation information (insertion point, rotation, scale, and image file-

name) is saved in the drawing file. Edits you have made to the images are

saved in the image files.

s When you use AutoCAD SAVE, you are prompted to save only the image

files you have edited. You have the option of either saving each edited

image individually, or saving all of the edited images in your drawing. You

can skip over an image if you dont want to save the changes you made.

s If a new image has been created in your drawingby using the inew

command, the vmerge command, or a REM command, you will be

prompted to name the new image when you save the drawing.s If you use the AutoCAD IMAGE command to detach an image, which

erases all references to it in the drawing, Raster Design first checks to see

if the image has been edited. If so, you are prompted to save the image

before continuing. You can cancel the Detach command, you can save the

edits, or you can detach the image without saving the edits.

Saving Images

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Exporting Images

When you save an AutoCAD drawing file containing a raster image, the

image correlation data is saved in the drawing file. Therefore, the next time

you open the drawing, the image is displayed with the correct insertion

point, scale, and rotation angle. This correlation data is saved only in thedrawing file, not in the image file itself.

If you want to insert the image into another drawing and use the same

correlation data for the image, you can manually correlate the image again,

or you can save time by creating a correlation file for the image. Then, the

next time you insert the image into a drawing, you can simply choose the

correlation file as the correlation source, and the image is positioned, scaled,

and rotated correctly. No additional correlation is required.

To create a correlation file to use in other drawings or programs, you can

export the image using the Image Export Image (iexport) command.

When you export an image, not only can you create a correlation file for theimage, but you can also save the image with a different name, file format, or

location.

You can also export the correlation file itself, without exporting the associ-

ated image using the Image Export World (iworldout) command. The

resulting world file retains the file name of the associated image, but the file

extension is modified to indicate that the file is a world file (for instance,

exporting a world file for the image lakshor.tifwill create the file lakshor.tfw).

You can choose the type of correlation data you want to create by using the

Export Options dialog box.

Saving an Image by

Exporting

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Exporting Images | 41

For all image types, you can save the correlation data as a resource file or a

world file. For certain image types, you can also save correlation information

within the image file itself.

Key Concepts: Exporting Images

s When you export an image, you have the option of maintaining the link

between the drawing and the newly saved image by selecting Maintain

Drawing Link to Image. If you dont specify a different image name, file

format, or file location when you export the image, maintaining the link

has no effect. However, if you do change any of these variables, a new

image file is created. The new image file will replace the image file that

currently exists in the drawing (if the Maintain Drawing Link to Image

check box is selected).

For example, if Maintain Drawing Link to Image is selected when you

export image.tif, and you specifypicture.tifas the new filename for the

exported image,picture.tifreplaces image.tifin your drawing. If Maintain

Drawing Link to Image is not selected, image.tifremains in the drawingandpicture.tifis saved to the file you specified.

s When you export an image and choose Resource File as the correlation

output type, a resource file with the extension .res is created for the image

in the path specified in the Raster Design Options dialog box. You can

create resource files for all image types.

NOTE Resource files are specific to Raster Design. If you want to create a

correlation file that can be used by other programs, you need to create a

world file.

s When you export an image and chooseWorld File as the correlation

output type, a world file is created for the image in the same directory

where the image is located. You can create world files for all image types.

s You can insert a read-only image into a drawing and then save it to a read-

write format using the Export command or the SaveAscommand.

However, only the Export command saves the image correlation

information.

s When you export rotated images, Raster Design gives you the option to

burn in the rotation, which means that, although the image still

appears rotated, it is inserted into a frame with a rotation of zero.


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4

4Setting Image Properties

In this chapter, you will learn how to manage your

images for maximum efficiency as you work.

From the Image Manage dialog box, you can manage

image files, change their display order or their active

path, even export images to the internet.

In this chapter

s Setting up data about each

image in your drawing

s Changing image properties-

layer, color, linetype, and dis

s Making a color transparent

s Masking images


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44 | Chapter 4 Setting Image Properties

Setting Up Your Data

When you first insert an image into your drawing, you create one instance

of that image (called an insertion) in the drawing. If you place copies of the

same image in the drawing, each copy is treated as a separate insertion of the

same image. The Image Manage dialog box is divided into two tabs that allowyou to control attributes for insertions and images separately:

You can use the Insertions tab to:

s change the display order of insertions

s preview insertions

s erase insertions

s show or hide insertions

s save or export insertions

s zoom to insertions

You can use the Images tab to:

s show the relationship of images and insertions in the drawing

s rename imagess detach images

s unload or reload images

s change or save the active path in the drawing

From the Image menu, select Manage.

NOTE You can click the Help button in the dialog box to see a Help topic that

describes each column of this dialog box.

Managing Images

Search Help for

Click the buttons

to move selectedinsertions forward

or back in the

display order list.

Right-click on

an image nameto display the

shortcut menu.


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Setting Up Your Data | 45

Key Concepts: Image Manages To access the Image Manage dialog box, you can select Image Manage,

or you can type imanage.

s If you have edited an image but not yet saved it, an asterisk (*) is displayed

next to the image name. After you save the image, the asterisk disappears.

s If there is more than one insertion of an image in your drawing, the Image

Manage dialog box numbers the insertions. For example, if there are two

insertions ofcadplot.tifin your drawing, then you would see cadplotand

cadplot:1 listed.

To manage images with the Image Manage dialog box

Steps Use to locate

1 Insert two images into your drawing so that one ofthe images is on top of the other image.

Inserting Images

2 Select ImageManage to display the ImageManage dialog box.

The last image you inserted is at the top of the list.

Managing Images andInsertions

3 On the Insertions tab of the Image Manage dialogbox, select the second image, then use the MoveForward button to move the second listed imagename up in the list so that it is now above the otherimage name.

The image is now displayed on top of the otherimage instead of below it.

Changing the Display Orderof the Images

4 From the list, select the name of one of the images,and click Zoom To.

This option is helpful if you insert an image using aninsertion point that is outside your current AutoCADdisplay window, or if you insert an image using adifferent scale factor.

Zooming to an Image

5 With the image name still selected, click Properties.

In the AutoCAD Properties dialog box you can adjustcolor, layer, and linetype information, and pick thetransparency color.

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s If you edit an insertion of an image, such as cadplot:2, the naming conven-

tion changes to indicate that the image has been edited. The image is then

listed in the Image Manage dialog box as cadplot_1*.

s The image listed first in the Image Manage dialog box is displayed on top

of all other images it overlaps. The image that is listed last is displayed

under images that overlap it. To modify this order, drag the names of the

images up or down in the list.

TIP You can also use the AutoCAD to modify the display order. From the

AutoCAD Tools menu, choose Display Order.

Because images are also AutoCAD entities, an image that you edit appears

to be placed on top of other images and vectors, even though the image

display order has not actually been changed. Use the AutoCAD REGEN

command to restore the images and vectors to their correct order.

Changing Layer, Color, Linetype, and Display

Each image in your drawing has properties you can control. You can access

all of the image and mask properties on AutoCADs Properties dialog box.

Changing ImageProperties

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Changing Layer, Color, Linetype, and Display | 47

Raster Design - specific properties include:

s Color

s Linetype

s Brightness

s Contrast

s Show images Show clipped image

s Show non-ortho

s Transparency color

It is recommended that you use the AutoCAD Properties dialog box to

manipulate your images. This combines AutoCAD functionality with that of

Raster Design, providing an environment that is easy to use.

For more information on AutoCADs Properties dialog box, seeAutoCAD 2002 Command Reference in the AutoCAD Help or printed

AutoCAD 2002 Users Guide.

Key Concepts: Image Properties

s You can select an image in the drawing, right-click, and then select

Properties to access the AutoCAD Properties dialog box.s Each image has its own properties. However, you can select multiple

images and set all their properties at the same time.

s Color selects a transparency color for a grayscale or color image and turns

transparency on and off.

s Layer moves the selected image(s) to another layer.

s

Linetype

chooses a different linetype for the image frame.s Display controls whether the image or only the frame is displayed in the

drawing, whether to use color or display in transparency color, whether

clipped areas are displayed, or whether images rotated at an angle other

than 0, 90, 180, 270 (nonortho images) are displayed.


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Applying Transparency Color

In binary images, the transparency color is always the background color of

the image. In color and grayscale images, you can choose which color to

make transparent. You can selectively turn on transparency. When

transparency is on, the image pixels that are drawn in the transparencycolor become transparent. When transparency is off, the pixels become

solid again.

To make a color transparent

Steps Use to locate

1 Select a color or grayscale image, right-click andselect Properties to access the AutoCAD Propertiesdialog box.

Selecting an Image

2 On the Category tab, click Transparency andchoose Yes.

3 To choose a color to make transparent, select a colorimage, right-click and select Properties to access the

AutoCAD Properties dialog box.

Changing the TransparencyColor of an Image

4 On the Category tab, select Transparency Color and

click to display the Transparency Color

dialog box.

5 Click Select< to choose a transparency color.

Now you can see through pixels drawn in thetransparency color.


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Applying Transparency Color | 49

You can make only one color in each image transparent. The transparency

color has three uses:

s You can make all pixels of a specified color transparent. For example, if

you specify black as the transparency color for an image, then you can

make each black pixel in the image transparent.

s Any time you use Rub or Crop, the rubbed or cropped areas are displayed

in the transparency color. For example, if you choose blue as the transpar-

ency color, all rubs are displayed in blue. If you turn on transparency for

that image, the rubbed areas become transparent. For more information,

see Rubbing and Cropping on page 65.s When you merge two images together, any blank space is filled with the

transparency color of the destination image. For more information, see

Merging Images on page 68.

Key Concepts: Transparency Color

s You can make one color in each grayscale and color image transparent by

selecting a transparency color for the image. To make the color transpar-

ent, select Yes to Transparency in the AutoCAD Properties dialog box. To

turn off transparency, select No to Transparency.

s For binary images, you can turn transparency on or off, which means that

the background area on a binary image will be either transparent or solid.

You cannot choose a transparency color for a binary image. The

transparency color is always the background color. By default, binary

Transparency onWhen transparency for the parcelmap is enabled, you can see theunderlying aerial photograph.

Transparency offWhen transparency for the parcelmap is disabled, you cannot seethe underlying aerial photograph.

Aerial photographs under a parcel map


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images are always inserted with transparency on so that the background

is transparent.

s The image pixels are not erased or permanently modified when you make

a color transparent. You can restore the original pixel color by selecting No

to Transparency in the AutoCAD Properties dialog box.

Masking Images

To display and plot a subset of the images in your drawing, you can use an

image mask. An image mask hides, moves, or does not affect the images that

are completely outside the mask boundary. The mask boundary is an

AutoCAD object that you can move, stretch, scale, and erase like any other

AutoCAD object.

You can control how the mask affects the images outside the image mask by

using the New Image Mask dialog box.

You can mask images using a rectangular or polygonal boundary. For

example, in the following illustration, the polygonal mask was created with

the Hide Image(s) option.

Masking Images

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Masking Images | 51

The third illustration shows what happens when you select the Show Image

Frame(s) option.

Effects of polygonal mask on a group of tiled quad sheets

A mask is similar to an image clip that you can create with the AutoCAD

IMAGECLIP command, but a Raster Design mask is more global than a clip

because it affects all the images in your drawing instead of only one image.

Like a clip, a mask does not permanently modify the images. You can turn

off the mask to redisplay all the images. You can also convert the mask to

individual image clips. Converting a mask to image clips converts the global

mask to clips on each image.

Tiled quad sheets, withimage frames visible

Polygonal mask Polygonal mask with imageframes visible


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5

5Image Editing

When you edit images with Raster Design, you work

seamlessly with AutoCAD. You can edit, convert,

manipulate, and save images in formats compatible

with your application, and you can share images with

others.

In this chapter

s Correlating images with the

AutoCAD coordinate syste

s Rubbersheeting

s

Enhancing images using theHistogram editing filter

s Enhancing images using imag

processing and cleanup

commands

s Managing the image palette

s Selecting images

s Rubbing and cropping image

s

Merging images


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54 | Chapter 5 Image Editing

Correlating Images

Correlating refers to the process of positioning an image within the AutoCAD

coordinate system so the scale, rotation, and coordinates match AutoCAD

units and coordinates. When you insert an image, you can specify units,

position, scale, and rotation for the image. After you insert the image, youcan fine tune the correlation by matching the image to existing geometry or

even correct distortions in the image that were caused by poor scanning, lens

distortion, paralax, and so on.

Raster Design has several commands you can use to correlate images after

they are inserted. These commands are located in the Image Correlate

menu. The correlation commands include the following:

s Match (imatch) for matching the position, scale, and rotation of an image

to another image or to existing geometry.

s Scale (iscale) and Displace (idisplace), for scaling, and moving images

(respectively).

s Rubbersheet (irsheet) for correcting distortions within the image (see the

following section, Rubbersheeting an Image After Correlation on

page 55).

One way to correlate an image is to use an existing correlation source. To do

this, you can select the correlation source when you insert the image. The

Insert command opens the Correlation Wizard. The Correlation Wizard

searches for any correlation files that might exist, and lists the available files

to choose from on the Pick Correlation Source Page.

The Correlation sources that Raster Design can use are resource files, world

files, and image files that contain stored correlation information.

For more information about inserting images with the Correlation Wizard or

the Correlation dialog box, see Chapter 3, Creating, Inserting, and Saving

Images on page 31.

Correlating an Image

After Insertion

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Correlating Images | 55

Rubbersheeting an Image After Correlation

Image distortions can sometimes prevent you from aligning an image in your

drawing. You can use the Rubbersheet command to:

s Fix distortions in aerial photography caused by aircraft tilt, camera

distortion, and unevenness of terrain.s Save money on orthophotography when absolute accuracy is not

required.

s Correct most of the distortions in an image resulting from paralax.

Rubbersheeting works by transforming an image so that points you specify

in the image match corresponding points in the drawing as closely as

possible. These matched points, consisting of a source point in the image,

and a destination point in the drawing, are known collectively as control

points. You can enter control points by picking them directly from the

image, or you can use the Grid tool to make a grid of destination points that

you match to their corresponding source points.

NOTE If you are using Autodesk Land Desktop, you can substitute COGO

points by typing .P, .G, or.N when Raster Design prompts you to enter destina-

tion points. For more information see, Snapping to COGO Points in Help.

Raster Design features two methods for transforming the image:

s The Triangular methoduses the control points you enter to triangulate the

image, then performs a series of small transformations on those triangular

areas. The area to be transformed is called the convex hull and is defined by

the outermost destination points. Image data outside th