Tutorial

Geometry

• OGR Geometry utilities
  • Point
  • Multi-point
  • Line-string
  • Multiline string
  • Polygon
  • Multi-polygon

Features

• Features Data
• Reading layers
• Layer
  • Iteration through layers
  • Layer description
• Layer definition
  • Get an instance of osgeo.ogr.FeatureDefn
  • Using osgeo.ogr.FeatureDefn methods
• Attribute Fields
  • Class FieldDefinition
  • Field properties
• Geometry Fields
  • Export geometries
  • Geometry count
  • Area
  • Boundaries
  • Centroids
  • Coordinate dimensions
  • Curve geometry
  • Dimensions
  • Envelopes
  • Names
  • Linear geometries
  • X, Y, Z, and M
  • Points 2D
  • Points
  • Points ZM
  • Spatial references
  • WKB sizes
  • Is geometry 3D
  • Is geometry empty
  • Is geometry measured
  • Is geometry point
  • Is geometry polygon
  • Is geometry ring
  • Is geometry simple
• DataFrame
  • Get layer as pandas DataFrame
  • Show layers as pandas DataFrame
  • _GEOM_ column
  • Save DataFrame as layers
• Copy
• Selection
  • Attribute selection using copy
  • Attribute selection using filters
  • Spatial search
• Editing layers
  • LayersEditor instance
  • Writing layers
  • Update instance
  • Delete fields
  • Calculating area
  • Drivers

Feature geoprocessing

• Centroid
• Convex hull
• Buffer
• Dissolve
• Thiessen

Rasters

• Examples used in this tutorial
• Reading rasters
  • Reading files
  • Reading compressed files
• Raster description
  • Methods available in girs.rast.raster import Raster
  • Info
  • Raster visualization
  • Raster properties
• Raster band
  • Number of bands
• Raster array
  • Get array
  • Get masked array
  • Get scaled array
  • Get full array
• Raster transformation
  • Transform
  • Pixel and world coordinates
  • Extent
• Creating and modifying rasters
  • Copy
  • Modify
  • Write

Raster geoprocessing

• Describe
• Copy
  • Copy parameters
  • Copy
• Clip
• Resample
• Calculate