Local Government Basemaps using ArcGIS Steve Grisé Scott Oppmann Tuesday, July 14, 10:15-11:30am SDCC 30B
Topics Basemaps for Local Government Essential Application-Driven New Ideas Design Strategies Discussion
Basemaps You will have more than one basemap They won t t look like your 1995 ArcView/ArcIMS maps Users won t t turn layers on/off There are many examples on the web already to draw from
Basemaps 1. Public Access 2. Imagery 3. Tax Parcel 4. Utility 5. Elections 6. Public Safety 7. Demographic 8. Land Use 9. Transportation 10. Hydrographic 11. Topographic 12. 3D City 13. Land Development Essential Application Driven Some New Ideas
Essential Basemaps Just tell me what to do to get started 1. Public Access 2. Imagery
Public Access Elevation/Shaded Relief Administrative Boundaries Hydrography Facilities Roads and Railways Tax Parcels Structures Addresses
Imagery Aerial Imagery Administrative Boundaries Facility Names Waterbody Names Road and Railway Names Address Numbers
Demo - Essential Basemaps
Application-Driven Basemaps WTF 1984 1. Tax Parcel 2. Utility 3. Elections 4. Public Safety 5. Demographic 6. Land Use 7. Transportation 8. Hydrographic 9. Topographic
Basemaps New Ideas 1. 3D City Elevation Model (DEM, DSM, Lidar Pt. Cloud, etc.) Imagery Topography Buildings (with height) 2. Land Development Status Proposed Developments
Design Strategies User Requirements Technical Requirements Cartography Considerations
User Requirements What do users need to see Be application driven Specific users At multiple scales Interaction with other app content Keep map requirements high level at first Primary display scales Data themes (primary intent) Representation (point, polygon, line, raster) Labels Popup content Get feedback and refine Tax Parcel Viewer Spec Doc Tax Parcel Public Access Basemap Tax Parcel Basemap
Technical Requirements How are you going to deliver the map Application UI and platform Desktop, web, mobile Single basemap or multiple map services Cached or dynamic map services Spatial reference and tiling schemes
Application Platform Desktop Web Mobile
What types of maps should I cache? Cached service best for: Complex base maps and imagery Data that does not change frequently Non-cached (dynamic) services best for: Data that changes frequently Data layers rendered by attributes that change frequently Data that will be edited
Spatial Reference Need to consider before creating basemap Affects tiling schemes and map scales Options include: WGS 1984 (AGOL Today) Web Mercator (Google, Bing, AGOL Soon) State Plane/Local Projection (Your data) AGOL and Web Mercator tiling schemes and map scales provided in ArcGIS Server
Cartography Considerations It s s time for art class Cartography may impact data model You ll wrestle with symbolizing features Color, scale, symbols and text (labels/annotation) You ve got to do this work in ArcMap MXDs will get complex when structured by scale Many people can critique a map, but there aren t t many who can create a good one
Data Model Generalization of data may be required Additional attributes may be needed too Source data may be used in many layers and at different scales Changes to symbology or number of features being drawn If you re going to publish a dynamic map service, the data should be in the same coordinate system
Feature Symbolization Colors & Symbols Design for each scale level Plan for transitions between scales Use definition queries to control which features are being displayed Use contrast and color to define features Leave room for map overlays Use standard cartographic symbols Avoid complex symbols Try to keep things simple!
Feature Symbolization Labels & Annotation Design for each scale level Plan for space between labels Plan for transitions between scales Use color to associate with features Use standard fonts Use spacing to increase clarity Avoid serif fonts and effects (italics, halos, etc.) Use annotation if placement must be consistent
Related UC Tech Workshops Basic Principles in Cartographic Design Tue & Wed 3:15pm, Rm. 2 Advanced Cartography in ArcGIS Wed 10:15am, Rm. 6F; Thur 1:30pm, Rm. 7 A/B Designing and Using Cached Map Services Wed - 8:30am, Rm. 8; Thur - 1:30pm, Rm. 8; Fri 9:00am, Rm. 9 Maplex for ArcGIS Tue 3:15pm, Rm. 6F; Thur 1:30pm, Rm. 6F 3D City Tue 3:15pm, Rm. 7A/B; Thur 1:30pm, Rm. 7A/B
Related UC Tech Workshops GIS Design Methods Wed - 8:30am, Rm. 30B Water Utility Applications using ArcGIS Tue 3:15pm, Rm. 30B Land Records Applications using ArcGIS Wed 10:15am, Rm. 30B Emergency Management Applications using ArcGIS Wed 1:30pm, Rm. 17A
Other Resources ArcGIS Resource Center (http:// User Communities Map Templates Mapping & Visualization ArcGIS Online (http:// (http://resources.esri.com) (http://arcgisonline.esri.com)
Questions Please fill out the survey for this workshop