Hi Stefano: I do not know the answer to questions 1 and 2, but regarding question 3, I think I can help, nevertheless I would like to know the opinion of ILWIS staff... Since the very beginning (version 1.1) ILWIS have had troubles when importing vectors from AutoCAD. Specially two items where critical: 1) Vectors with shapes generated with other resources than simply a "line" or "polyline" i.e. "circle" "arc" etc. not to mention "donought" "3dface" or any other involving "z" coordinates, which is directly connected with the following item bellow. 2) For ILWIS to "see" the coordinates, it needs to have each entity (no matter if it is a point or a line, I do not know if it recognize blocks) located in a different layer, while the layer "name" is the 'z' coordinate. So if you have 100 points in 100 different hights you need to edit your DWG (manually or with programming) in order to create the 100 different layers and move your 100 points to the corresponding layers. Then you should export the entire drawing to DXF (do not forget to export with the header that keeps all layers definitions, drawing settings and limits) preferable using version 12 of AutoCAD, and then, ILWIS will recognize the layer name as the "z" attribute. For points there should be probably a simpler way to do that involving tables, but I am a old ILWIS user, and as far as I know, the "formula" I give is the only way to export contour lines from AutoCAD into ILWIS. Best regards, Reinaldo "Stefano C.A. Rossi" wrote: > Hi list, > I have some problems with vectors in ILWIS 3.0: > 1) Importing polygons from shapefiles: small polygons embeddend in wider > ones disappear. I can see the boundary by cliking "edit"_"Find Undefined", > but I can't make them visible with their color-fill. > 2) Exporting to dxf the same files the small polygons embedded are not > exported. > > 3)Importing point maps with x,y,z coordinates from Autocad dxf I have all > the points with z value 0.0000 in the ILWIS table. Why? Could be an error > in the structure of the Autocad file (each point is represented by block) or > not? > > May be I'm really clumsy with ILWIS applications unusual for me, I'd like > some advices . Tanks a lot in advance for any suggestion. > Stefano > > _____________________________________________________ > Stefano C.A. Rossi > Geologist > Via Pisanello, 6 > 20146 - Milano > [EMAIL PROTECTED] > personal web page http://www.geocities.com/rossigeologo/index.html
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