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.
- GUI with live map parameter tuning
- Preview uses the exported OMAP symbol definitions for colours, dashed contours, area patterns, water boundaries and point shapes
- Connected and overlapping lidar files are queried together, with exact duplicate returns removed
- 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, with an optional AI stream-detection in
deep-learningbuilds - Buffering on polygons to remove small holes and too thin areas or exaggerating small details
- AI contours
- Form lines
- Water detection
- Building detection
- Boulder detection (experimental tree-filtered, opaque non-ground surfaces; large boulders ≥2 m by default, small boulders ≥1 m with a lower height threshold)
- Vegetation boundaries
- Road/path detection
- Marsh detection
- Lidar CRS transformation
Add your files, select output location and optionally adjust some advanced setting.
Add a polygon filter. Only the area inside the filter is processed.
OmapMaker let's the user adjust parameters live.
Every generation step is optional and enabled by default. Use Enable this generation step in each adjustment panel to choose which features to generate. Disabled steps are omitted from both the preview and the exported map; their parameter settings are kept for re-enabling.
The preview renderer lives in src/rendering, adapted from the private
omap-projects renderer and its paper-geometry helpers. Its source is included
in this repository, so building OmapMaker requires no sibling checkout.
Symbol visibility and map opacity can still be adjusted over the background map;
maps without a CRS use a local planar preview.
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.
OmapMaker writes viewer-scaled geotiffs for the rasters that are checked on the welcome screen.
