WHO ARE WE? WHAT DO WE DO?

What Do We Do InfoGrafix provides Geographic Information Systems consulting services, project management and training for ESRI’s ArcView and ArcGIS Software. With the skills and experience necessary to help customers effectively utilize GIS technology we additionally provide planning, design, and implementation of GIS solutions. InfoGrafix, L.L.C. translates project challenges and issues into cost effective predictable project outcomes. “State-of-the-Art” GIS tools and quality service oriented people make InfoGrafix the right choice for your organization.

What is GIS? • Geographic Information System Definition • What can GIS really do? • GIS Data • Spatial Data Major Elements • Major Types of GIS GEOGRAPHIC INFORMATION SYSTEMS (GIS)

Simplistic View of GIS GIS Maps Tables Maps Linked to Data Spatial Modeling Tools

GIS Primary Functions Capture Storage Retrieval Analysis Display Spatial Data

What can GIS really do? Thematic Mapping Functional Classification

What can GIS really do? Thematic Mapping Treatment Plant Major Interceptors

What can GIS really do? Spatial Queries Map to Table Table to Map

11/17/09 2020 What can GIS really do? Spatial Queries - Map to Table To Chart

What can GIS really do? Spatial Queries - Table to Map Select the 2 subbasins with greatest increase in flow Display Flow Identify Subbasins

What can GIS really do? Data Integration Wastewater Flow Routing Model Data Predicted Overflow Predicted Overloaded Sewers

What can GIS really do? Routing and Minimum Path Shortest Path From Water Reuse Sites to the Reclamation T/P Using City Streets

What can GIS really do? Routing and Minimum Path Shortest Path from a Water Reuse Site to a Major Distribution Pipe Using City Streets

What can GIS really do? Buffering Proposed Water Pipe Contaminated Areas 500 & 1,000 Buffers Problems

What can GIS really do? Distance, adjacency , and Proximity Potential Water Reuse sites in Orange County Sources of reclaimed water

GIS Data Structure GIS Maps Tables Maps Linked to Data

GIS Data Structure

Irregular Tile Boundaries CDOT Region boundaries

Spatial Data Value Shape Location Spatial Reference Object’s data, information or description in tables Object’s external surface or outline on a map or drawing Object’s place on a map that represents the real world position Object's relationship to the objects around it

Spatial Data Value Shape Location Spatial Reference Basic geometric figures Points Line 2 or more Points Polygon 3 or more Lines

Raster GIS Data Layer Note Grid/Raster Cell Size Rich mixture of data Fuzzy boundaries

Grid GIS provides more data variations and less precise edges. Missing data easily identified. Vector GIS provides better edges and sharp changes in data, however, data is constant for entire area. Data Variation Greater Data Variation Missing Data Sharp Edges Single Value

Shape Location Spatial Reference Value Database Shape Graphics Location Coordinates Map Projection and Datum Spatial Reference Connectivity Orientation Adjacency Containment Spatial Data Summary

GIS Data Structure Shape Value Location Spatial Reference Map Projection and Datum Containment Adjacency Orientation Connectivity Database Coordinates Graphics GIS Geographic Information System