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Exploring Exploring ArcToolbox ArcToolbox Presented by: Isaac Johnson

Exploring ArcToolbox Presented by: Isaac Johnson

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  • Exploring ArcToolboxPresented by: Isaac Johnson

  • Session Overview

    Introduction to ArcToolboxGeoprocessing MethodsExercises (Sample data used: Orange Unified School District)Questions & Comments

  • Geoprocessingis the processing of geographic information to generate a desired geographical dataset

    INPUT GEODATA 1INPUT GEODATA 2INPUT GEODATA 3GEOPROCESSOUTPUT DATASETArcToolbox contains all of the Geoprocessing tools

  • Geoprocessing MethodsCommon Geoprocessing tasks include:Converting data (converting a shapefile to a geodatabase feature class or converting geometry types) Overlaying data (uniting or intersecting datasets) Extracting data (clipping a subset of data, or selecting data with certain characteristics)Managing data (joining fields, copying datasets or creating new datasets) Finding what's nearby (buffering data or finding points near other features) Finding suitable locations or paths (running Spatial Analyst tools such as Weighted Overlay and Cost Path)

  • Overlaying Data (Union vs. Intersect)Union operation computes a geometric intersection of the Input Features. All features will be written to the Output feature with the attributes from the Input Features, which it overlaps.

    Intersect operation computes a geometric intersection of the Input Features. The Feature or portions of features which overlap in all layers and/or feature classes will be written to the Output Feature Class

  • Extracting DataExtraction by shape: extracts or selects cells based on the specified shape. You have the option to extract the cells that fall within or outside the shape. You can extract by a circle, rectangle, or polygon. Extraction by attribute: allows you to extract or select a set of records/features that meet a specified attribute query.

  • INTRODUCTION TO ARCTOOLBOXThe ArcToolbox Windows

    Variety of Geoprocessing tasks are completed easily and efficiently using ArcToolbox.You can open ArcToolbox from ArcCatalog or an ArcMap document by clicking the icon. You can have your own Geoprocessing setting by creating a customized ArcToolbox and rename it to your name. Right click on ArcToolbox New Toolbox Type in name

  • Geoprocessing TasksYou can perform Geoprocessing tasks by:Directly using tools from the ArcToolboxBuilding Models (Expanding ArcToolbox)

  • ARCTOOLS FOR GEOPROCESSINGAnalysis ToolsConversion Tools Data Management ToolsMy Tools

  • The Dissolve Tool

  • Dissolve ExampleDissolved high school attendance boundariesHigh school attendance boundaries

    ORANGES HIGH SCHOOL BOUNDARIES

  • The Union ToolDouble-click on Union tool to open the Union dialog box

  • Union ExampleElementary School BoundaryAll BoundariesMiddle School BoundaryHigh School Boundary ORANGE UNIFIED SCHOOL DISTRICT BOUNDARIES

  • The Clip Tool

    Can be found in the Analysis Toolbox

    The Clip Tool can handle a variety of data types such as shapefiles, personal geodatabase feature classes, ArcSDE feature classes and coverages

    Can be used to exclude unwanted data from a dataset.

  • Clipping Example

  • The Buffer ToolCan be found in the Analysis Toolbox and Coverage ToolboxThe Buffer Tool can handle a variety of data types such as shapefiles, personal geodatabase feature classes, ArcSDE feature classes and coveragesYou can use the Buffer tool to identify an area within a specified distance around a feature

  • The Buffer Tool (cont)School layer is used as an input dataset.Specified distance is defined as 1 mile around the school point.Dissolve all the buffers into 1 feature and remove all overlaps.

  • Buffer Example

  • QUESTIONS & COMMENTS

    Converting data: (such as converting a shapefile to a geodatabase feature class or converting geometry types) Overlaying data (by uniting or intersecting datasets) Extracting data (by clipping a subset of data, or selecting data with certain characteristics)Managing data (by joining fields, copying datasets or creating new datasets) Finding what's nearby (by buffering data or finding points near other features) Finding suitable locations or paths (by running Spatial Analyst tools such as Weighted Overlay and Cost Path)

    When overlay data Each main toolset consists of a number of smaller toolsets. These toolset further organize the tools in groups base on their functions. Analysis Tools: You can find most Geoprocessing power of ArcToolbox in here. With this toolset, you can perform OVERLAYS, CREATE BUFFER, CALCULTE STATISTICS, MERGE DATASET and much more. Conversion Tools: You can convert coverages, grids, and TIN (triangle Irregular Network) to other data formats. If you want to change one type of dataset to another, this tool is the one. Data Management Tools toolset can help you mange a coverages topology, map projection and attributes. If you need to modify the characteristics of a coverage or table you can use this toolset.My Tools: As mentioned in the previous slide, this tool is a customized tool. You can modify it by adding the tool you use most frequently or tools associated with a common task. (by drag & drop)For most of Geoprocessing tasks, we will utilize Analysis Toolset and Data Management ToolsetExample: How to identify students that reside within 1 mile radius from any school