from esri *.asc to export stl

[sugizo]

trial 1

1. generate esri *.asc file from saga gis

2. import esri *.asc file via blend gis
   

3. export *.stl from blender

4. result 23 mb (not expected)
   

trial 2

1. generate esri *.asc file from saga gis

2. import esri *.asc file via blend gis
   

3. use mesh delaunay in blender gis
   

4. export *.stl from blender

5. result 45 mb (not expected)
   

question
how to get correct elevation *.stl file using blender gis ?

best regards

[domlysz]

sound like the xy coordinates of your asc file are in degrees whereas altitude are in meters

[sugizo]

how to set xy coordinates of asc file in meters,
so that can be used in blender gis ?

p.s.
already tried *.asc generated from gdal, grass and saga
have the same value