Code Examples and Explanations

Below are pages that show some sample code snippets of how to perform common operations in the Global Mapper SDK, and explain in detail some of the functions and types involved.

• C++-Style Arrays for GM Types in Python
• Coordinate Conversion/Measurement Samples
  • Using Python Libraries to Display Vector Attributes
  • Loading a Rectified JPG Using GCPs from a CSV
• Custom Layer and Feature Creation Samples
  • Create a Floorplan with Area Features
  • Create a Floorplan with Line Features
• Display Options/Drawing Samples
  • Crop, Merge, and Reproject USGS DRGs to GeoTIFF/JPEG
  • GMW Color Customization
  • Create Elevation Shader
• Handling Text Encodings
• Methods of Exporting
  • Convert DWG/DXF to a GeoTIFF Raster File
  • Vector Layers to Multiple Shapefiles
  • Vector Attributes to CSV
  • Crop, Merge, and Reproject USGS DRGs to GeoTIFF/JPEG
• Global Mapper Ints: *_t32, uint32, and others
• Opening and Closing a Layer
• Lidar Samples
  • Exporting an Elevation Layer
  • Pixels to Points
  • Colorize a Lidar Layer
  • Thin and Compare Lidar
• Lidar Query Samples
  • Classifying Query Points
  • Classifying a Graph and Extracting Query Features
  • Enhancing and Combining Lidar Queries
• Map Catalog Samples
  • Adding Map Layers
  • Setup and Management
  • Removing Maps
• Selecting a File to Open in GlobalMapper
• Converting a Pointer to an Array or List
• Creating and Setting Projections
  • Set UTM Zone 15
  • Set Geographic (Lat/Lon)
  • Set UTM Projection with Auto-Selected Best Zone
  • Load Projection from a File
• Raster/Elevation Layer Query Samples
  • Display Vector Attributes with NumPy and Matplotlib
  • GetPixelElevationRow Sample
  • GetLocationElevationList Sample
• Scripting Example Using RunScript
  • Export Raster Elevation Grid
  • Export LAS/LAZ Files
  • All Script Commands
• Surface Analysis Samples
  • Create Elevation Layer
  • Elevation Grids from Multiple Lidar Files
  • Contour maps from Multiple USGS DEMs
  • Generating a Viewshed and Watershed
• Vector Layer Editing
  • Edit Features Based on Attribute
  • Delete Holes from Area
  • SetFeatureAttrList Sample
• Vector Query Samples
  • Display Vector Attributes with NumPy and Matplotlib
  • Edit Features Based on Attribute