ENGR G2900 GIS programming

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ENGR G2900 GIS programming
New Graduate Course for Environmental
Engineering/Science Students

• Instructor Jianting Zhang, Ph.D.
• Fall 2009 semester
• Wednesday, 500-730 pm (Once a week)
• Steinman Hall 424
• Prerequisites ENGR 59910 or EAS330
• For Senior Students GPAgt2.75

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About Your Instructor

• MS. Ph.D. in Computer Science (databases)
• BS in Water Resources and Environments
• MS in Physical Geography
• Post-doc training in Ecological Informatics
• ArcGIS user since PC-Arc/Info back to early
  1990s
• Other GIS/Spatial database software packages
  MapInfo, GDAL, MapServer, Oracle Spatial
• An unpublished paper on intro to GIS
• http//www-cs.ccny.cuny.edu/jzhang/papers/A1_GIS.
  pdf

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Why GIS Programming?

• To perform repetitive tasks
• To create customized GIS interfaces for special
  purposes
• To automate complex GIS modeling
• Have a better understanding of ArcGIS

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Why you want to learn GIS Programming?

• Reduce your workloads for repetitive tasks
• Impress your boss
• Career opportunities for GIS programmers
• http//www.gjc.org/ (GIS Jobs Cleaning House)
• Programming is fun!

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How does a ArcGIS VBA Program look like?

• Example Add a shapefile to a map
• Dim pWorkspaceFactory As IWorkspaceFactory
• Set pWorkspaceFactory New ShapefileWorkspaceFact
  ory
• Dim pWorkSpace As IFeatureWorkspace
• Set pWorkSpace pWorkspaceFactory.OpenFromFile("C
  \Source", 0)
• Dim pClass As IFeatureClass
• Set pClass pWorkSpace.OpenFeatureClass("USStates
  ")
• Dim pLayer As IFeatureLayer
• Set pLayer New FeatureLayer
• Set pLayer.FeatureClass pClass
• pLayer.Name pClass.AliasName
• Dim pMxDoc As IMxDocument
• Set pMxDoc ThisDocument
• pMxDoc.AddLayer pLayer

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ArcGIS Object Model
WorkspaceFactory
Workspace
FeatureClass
IMxDocument
FeatureLayer