Creating a 3D model out of a DEM

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07-08-2021 10:20 AM
IzzadeanMirghani
New Contributor

Hello, 

I am struggling with something simple in ArcScene. I have created TINs and DEMs and turned them into 3D surfaces many times in the past but I am struggling for some reason now. I took a series of DEMs from USGS Earth Explorer and stitched them together in ArcMap to create one DEM. I then used this layer for all my geo-recessing. It is in the GCS_WGS_1984 coordinate system, which I did not think was an issue. When I try to select the "floating on a custom surface" selection, it turns my DEM into a weird blob/line figure instead of 3D. 

To rectify this, I then used the project tool to change the coordinate system to WGS_1984_UTM_Zone_36N. It still does the same thing when I try to select the "floating on a custom surface selection".

Has anyone ever encountered this before? Is it a glitch? 

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3 Replies
JayantaPoddar
MVP Esteemed Contributor

Could you share the extent of the layer (for each spatial reference)?



Think Location
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DanPatterson
MVP Esteemed Contributor

add the dem to a new map with no other data or basemaps.... is it normal?


... sort of retired...
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IzzadeanMirghani
New Contributor

The DEM functions normal in ArcMap and in ArcScene without other data or basemaps. It is only when I try to turn it into a 3D model that it starts behaving this way.

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