Add pseudogeo module

Former-commit-id: 4c6f137b75

opendm/pseudogeo.py

@@ -0,0 +1,23 @@
+import osr
+import gdal
+from gdalconst import GA_Update
+from opendm import io
+from opendm import log
+
+def add_pseudo_georeferencing(geotiff, scale=1.0):
+    if not io.file_exists(geotiff):
+        log.ODM_WARNING("Cannot add pseudo georeferencing, %s does not exist" % geotiff)
+        return
+
+    try:
+        log.ODM_INFO("Adding pseudo georeferencing (raster should show up at the equator) to %s" % geotiff)
+
+        dst_ds = gdal.Open(geotiff, GA_Update)
+        srs = osr.SpatialReference()
+        srs.ImportFromProj4('+proj=utm +zone=30 +ellps=WGS84 +datum=WGS84 +units=m +no_defs')
+        dst_ds.SetProjection( srs.ExportToWkt() )
+        dst_ds.SetGeoTransform( [ 0.0, scale, 0.0, 0.0, 0.0, -scale ] )
+        dst_ds = None
+
+    except Exception as e:
+        log.ODM_WARNING("Cannot add psuedo georeferencing to %s (%s), skipping..." % (geotiff, str(e)))