Extension for geoJSON and LIDAR data in LAS Format Reader/Writer for VTK

The vtkGeoJSONReader filter reads a geoJSON file specification and converts it into vtk compatible datatypes like vtkPolyData.

Current implementation of the reader supports the following geoJSON geometries

• Point

• Multi Point

• Line String

• Multi Line String

• Polygon (Without holes)

• Multi Polygons (Without holes)

The vtkLASReader filter reads LIDAR data in LAS format and converts it into VTK compatible vtkPolyData.

To Do:

For visualisation purposes, PointData in vtkPolyData will be modified according to the following point data properties:

• Classification/Class Name
• Intensity
• Colour

The implementation is based on VTK version 6. At present, it is not compatible with older versions of VTK.

More information about the geoJSON format can be obtained here:

http://geojson.org/

Sample geoJSON Formatted files for various countries can be found here:

https://github.com/johan/world.geo.json

Official libLAS Web Site:

http://www.liblas.org/

libLAS Git Repo:

https://github.com/libLAS/libLAS

LAS Specification:

http://www.asprs.org/a/society/committees/standards/LAS_1_4_r13.pdf