DTTrierFlood/GeoData
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Note raw data kept out of git

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s0wlz (Matthias Puchstein)
2025-12-14 04:16:28 +01:00
parent e3d7fb9689
commit c417751b59
1 changed files with 4 additions and 1 deletions
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@@ -6,9 +6,12 @@ This repository converts DGM1 elevation tiles into Unity-ready 16-bit PNG height
- GDAL installed with Python bindings (`osgeo` importable).
- Python 3.9+ available on PATH.
- DGM1 source tiles placed in `raw_dgm1/` as `dgm1_<utm_zone>_<easting>_<northing>.tif` (with matching `.tfw` files).
- Raw inputs (`raw_dop/`, `raw_3dgeb_lod1/`, `raw_3dgeb_lod2/`) are **kept out of git**; keep them locally or document how to fetch/regenerate.
### Repository Layout
- `raw_dgm1/` — input rasters (not versioned).
- `raw_dop/` — raw orthophoto downloads (JP2/J2W/XML), ignored in git.
- `raw_3dgeb_lod1/`, `raw_3dgeb_lod2/` — CityGML building tiles, ignored in git.
- `work/` — intermediates such as `dgm.vrt` and `_tmp.tif` files; safe to delete/regenerate.
- `export_unity/height_png16/` — final 16-bit PNG heightmaps for Unity import.
- `export_unity/tile_index.csv` — manifest mapping tile IDs to world bounds and global min/max used for scaling.
@@ -46,4 +49,4 @@ This repository converts DGM1 elevation tiles into Unity-ready 16-bit PNG height
This builds `work/dop.vrt` if missing and writes `export_unity/ortho_jpg/<tile>.jpg` + `.jgw` aligned to `tile_index.csv`.
### Buildings
The building export pipeline is temporarily disabled while we choose a mesh conversion approach (GDAL lacks a native OBJ writer). CityGML LoD2 sources remain in `raw_3dgeb_lod2/`; consider CityGML→glTF/OBJ tools (e.g., citygml-tools + cityjson2gltf) for future integration.
The building export pipeline is temporarily disabled while we choose a mesh conversion approach (GDAL lacks a native OBJ writer). CityGML LoD2 sources remain in `raw_3dgeb_lod2/` locally (ignored in git); consider CityGML→glTF/OBJ tools (e.g., citygml-tools + cityjson2gltf) for future integration.