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Hi Mervyn, Thanks! I will try what you said. But I found a way to do this is generate TIN from the original DEM, then use 3D Analysis/Conversion/ TIN Triangle tool to generate slope/aspect as a vector file. That will give me the triangular look polygons. But am still finding a way to decrease the number of polygons, thinking of the Elimination tool.
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08-20-2018
12:33 PM
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Hi Dan, Thanks for your prompt reply again! There are in total two fields in the aspect file-- value and count. I just tried to convert the aspect from raster to polygon choosing the other field(count) which gives me the same blocky like result.
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08-19-2018
09:01 PM
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Sorry for the misunderstanding. Of course, after get slope/aspect from original DEM, I use Int tool transfer values into Integers.
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08-19-2018
08:47 PM
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Hi Dan, Thanks for your reply. I'm sure I checked the simplified box. I want to get polygon files of slope/aspect, then overlay/tessellate them into polygons, so that parameter values in a single polygon are all the same. But I don't want these many polygons, any ideas? My DEM is not relassified and it's float.
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08-19-2018
08:34 PM
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I have a DEM file, I generated slope/aspect(raster format) using the Surface tool, then I used Conversion tool convert them into polygons(simplified polygons checked). What I wanted are TIN(triangular shaped polygons) looked polygons, but what I got are lots of adjacent square polygons, as below. I tried to use the Eliminate tool to merge some small polygons, but still looked not right. Is there anyone know what I missed? Great thanks!#raster to polygon
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08-19-2018
07:44 PM
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