OmapMaker

Generate georeferenced and magnetic north aligned .omap files directly from lidar data

An application for generating orienteering maps (.omap file) from ground-classified lidar data.

With a GUI with parameter tuning, area filtering and lidar conversion tools. The written omap-file is automatically georeferenced.

Overlapping lidar files not yet handled

Implemented:

• GUI with live map parameter tuning
• Raw, smoothed and interpolation-based (experimental) contours
• Basemap-contours (with marked depressions)
• Vegetation
• Writes Omap-files that are
  • georeferenced (if a CRS is detected in the lidar files or provided)
  • aligned towards the Magnetic North according to the world magnetic model based on the maps creation date and geographical position
  • correctly scaled including calculating the auxiliary scale factor based on the map center's elevation
  • in scales 1:10_000 or 1:15_000 with minimum symbol size filtering
• Supports both bezier and polyline output
• Polygon filter for only mapping parts of the provided lidar files
• .las and .laz to .copc.laz conversion
• Coordinate system assignment tool for CRS-less lidar-files (Lantmäteriet in Sweden uses EPSG:3006, but often skips writing the mandatory CRS-VLR to their files)
• CRS-less files are supported if the CRS is unknown
• Non-connected lidar file detection (Useful when accidentally adding a file that should not have been added or assigning the wrong CRS to a file)
• OpenStreetMap, OpenTopoMap or ESRI satellite background map
• Experimental lidar-intensity filter
• Hydrologically corrected D8 stream detection
• Buffering on polygons to remove small holes and too thin areas or exaggerating small details

WIP:

• AI contours
• Form lines
• Water detection

Wish List:

• Building detection
• Vegetation boundaries
• Boulder detection
• Road/path detection
• Marsh detection
• Lidar CRS transformation
• Overlapping Lidar handling

Step-by-step

Add lidar files

Add your files, select output location and optionally adjust some advanced setting.

Add an optional polygon filter to the files

Add a polygon filter. Only the area inside the filter is processed.

Parameter tuning

OmapMaker let's the user adjust parameters live.

Contour tuning

Openness tuning

Vegetation tuning

Cliff tuning

Water detection

Writes to omap

Here is the finished map in OpenOrienteering Mapper (geo-referenced and magnetic north aligned). The generation process is on the order of minutes, depending on point density and map size.

Writes geo-referenced geotiffs

OmapMaker writes viewer-scaled geotiffs for the rasters that are checked on the welcome screen.