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Dtm I cant get to work


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10.5 Xp Pro Gig 1 Meg ram 128Video

Used to use the Dtm frequently in 9.5 now I keep getting error ' Not enough data in source layer to create '. Have tried D polys , 3d loci which i prefer and tried grid . Have i forgotten to do something basic here .Or has the Dtm Changed in Version 10?????

Regards all Brendan

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Do you have them selected when you go to create the DTm?

Can you verify the objects selected are only 3d polys or only 3d loci?

If you have any 2d polys or 2d loci mixed in, it may explain why you are receiving the error message.

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Yes I have used custom selection to just select 3d

Loci.The error message is this'Error There isnt enough valid data on the specified layer to buld a DTM".

I dont see what the difference is To 9.5 version?

Perhaps I have Alzheimers and am forgetting something really basic.

Again I have tried Polygons Grid still nothing.

Thanks for the reply Katie.

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