In attached image the small square seems to be in correct place in divided geometries. Top left and bottom right slices are not loaded.

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@heddheld:

The ASC file I used starts:

ncols          3000
nrows          3000
xllcorner      584000.000
yllcorner      7182000.000
cellsize       2
NODATA_value   -999.999

Then there are value list after that. Also I myself had not previously heard of ASC, before I became interested into ground measured geometry. As prixat did, you can download those files by yourself from selected areas. Read the link I provided, from there you can go forward to downloads.

The aerial link for the geometry I used:

http://kansalaisen.karttapaikka.fi/asetukset/asetukset.html?e=589677&n=7187744&scale=40000&tool=siirra&styles=normal&lang=en&mode=orto&showSRS=EPSG%3A3067&width=800&height=800&feature=utmlehti&tool=siirra&lang=en&mode=orto&map.x=131&map.y=674

R5144 is that geometry and R5144E4 top right corner locates my home.

 

If I had Terragen or Terragen's file format DEM, it might be covered also. Currently I am stuck with BMP's bitmap file header structure and byte's #3 dwords logic. I have not yet examined that much, but the target is to create a displacement map from geometry. The *.obj creation with texturing and fixed slicing worked well, as in that image with test texture there is square in point, where the source file is created to 9 geometries (3 in a row) and the same texture is spread to all 9 geometries.

 

As far as I have found, other types of height data is not available. That's why I was forced to solve, how I could import the data into 3D program like Poser to view and explore.

 

@prixat: You made very good explaining in few words. I myself have limited skills in English, so I have to use more words to picture what I want to say. Maybe I learn(ed) the new word to me, that grid...

OT: I have a painful left arm muscle and can't sleep, concentrate or do a things very efficiently. I think I damaged it about 3 weeks ago with heavy loads, when making firewoods... It feels like it was on fire...

 

EDIT: was a circle written instead of square, which is on the image with black color.