An Introduction to GIS for Developers - Part 2: GIS Data€¦ · An Introduction to GIS for...

An Introduction to GIS for developers Part 2: GIS Data

Canserina Kurnia & Tom Shippee

Agenda • GIS data types • Leveraging attributes • Getting locations from tabular data • Power of the Geodatabase

ArcGIS a complete platform

Content Mgmt ArcGIS Online/Portal

GIS Services ArcGIS Server

Apps and applications

Back office infrastructure

Content and services

“discover, use, make & share”

GIS Content & Analysis ArcGIS Desktop

Getting the information out… Provides Geospatial Capabilities Across the Entire Organization

. . . A Framework For Sharing, and Collaboration

• Mapping

• Analysis

• Visualization

Citizens Managers

Knowledge Workers

Professional GIS

Enterprise Integration

Deployed Users

Getting the information in… Breaks down barriers to communication & collaboration

. . . Anyone can gain access to the information they need

Exploring GIS as a Platform

Functionality Sharing

Fundamentals

Data

Vectors & rasters

GIS Data types

Commonly used data in ArcGIS

Data type Description

Address • Descriptive locations • Street address, zip code, county, state

CAD • Computer Aided Design • Engineering and design drawings

Elevation • Height or depth in relation to reference surface such as mean sea level • Many supported raster and vector formats

Geodatabase • Native format for ArcGIS • Storage of features, tables, and behaviors in a relational database

Imagery • Aerial photos or satellite images • Many supported raster formats

CSV, GPX, GeoRSS • Coordinate values stores in a file • streaming location as part of a Web feed

Shapefile • Simple format for storing point, line, and area features

Temporal • Time or date information for geographic locations

X,Y or X,Y,Z • Coordinate values • May include elevation, or Z values

Managing GIS Data

What is a geodatabase? • ArcGIS native data structure

Why use a geodatabase? Rules and relationships

Geodatabase

Datasets

Advanced datasets

Data integrity

Geoprocessing and geocoding

Scale storage

Integrate with other databases

Scale users

Working with versioned data

• Publish public version (DEFAULT)

• Next version of the data (QA)

Parks

Parks

Data versioning scenarios

Analyst Public

Farmland Residential

• Controlled data release

Flood Public • What if modeling & planning

(e.g., disaster management)

• Project staging

Replication enables efficient data copies

Multiuser geodatabase

Source

Target Data Change Set

Combining text & geometry

Leveraging attributes

Spatial tables • Records correspond to features • ObjectID and Shape fields

Nonspatial tables • No record-feature correspondence • No Shape field • May have OID field

Table Join • Symbolize countries based on UN data

A

Spatial table has no UN data Nonspatial table has UN data

JOIN

Table Relates • Support one-to-many and

many-to-many relationships between records

Nonspatial table

Spatial table

Geocoding addresses, zip codes, etc.

Getting locations from non-spatial data

Adding x,y data • May exist in non-spatial

tables

GPS locations of Starbucks

…displayed as point layer

Address Zip latitude longitude

1 Battery Park Plaza 10004 40.70317 -74.0145

2 Broadway 10004 40.70407 -74.0131

110 Pearl Street 10005 40.70447 -74.0094

55 Broad Street 10004 40.70512 -74.0114

Geocoding • Get locations from

addresses • Create point features

NAME ADDRESS J. Maloney 310 East Andreas Road

K. Hickman 105 Maple Street

E. Palmer 3109 Bell Square West

Location Analytics • Esri Maps for

- IBM Cognos - Microsoft Office - Microsoft Sharepoint - MicroStrategy - Microsoft Dynamics CRM - SAP Business Objects - Salesforce (coming soon)

Domains, relationships & topology

Geodata Behaviors

Attribute editing validation • Data validation basics

- Data type - Default value

• Domains control input values for a single field

• Subtypes classification enables power editing

Topology and geometry edit validation • Spatial relationship models

• Topology rules control data integrity

I-80 connects San Francisco and New York

San Francisco is contained by

California

New York is adjacent to the Atlantic Ocean

Q & A Thank you for attending…

Canserina Kurnia (ckurnia@esri.com) Thomas Shippee (tshippee@esri.com)

Online Survey: http://www.esri.com/events/devsummit/session-rater