topic Re: Displaying SRTM/TIN in ArcScene in Data Management Questions

Displaying SRTM/TIN in ArcScene

LeslieJawili — Tue, 21 Feb 2017 06:46:09 GMT

Hi guys,

I was just wondering why is it I cannot display in 3D the uploaded SRTM and generated TIN in ArcScene? Is there any lacking data on it?

Please refer on the picture below.

Thank you.

Re: Displaying SRTM/TIN in ArcScene

JayantaPoddar — Tue, 21 Feb 2017 07:29:14 GMT

What happens if you choose "Floating on a custom surface" and choose the DEM for Base Heights?

Re: Displaying SRTM/TIN in ArcScene

LeslieJawili — Tue, 21 Feb 2017 07:45:39 GMT

It just form a straight line like this

Re: Displaying SRTM/TIN in ArcScene

DuncanHornby — Tue, 21 Feb 2017 12:37:56 GMT

The issue you are experiencing is to do with the fact your XY coordinates are in decimal degrees and your Z values are in metres. So totally different units. You need to set the raster as the floating on custom surface then in the next panel (elevation from features) set the factor to convert layer elevation to scene units. So what do you use? You can get an idea by visiting this blog page.

Below is a screen shot SRTM data for Turkey where I had set the factor to be 0.00005156, you just play around until you get what you like is my experience.

Re: Displaying SRTM/TIN in ArcScene

AbdullahAnter — Tue, 21 Feb 2017 23:30:32 GMT

You need to calculate Vertical exaggeration from extent:

see below picture.

Re: Displaying SRTM/TIN in ArcScene

LeslieJawili — Wed, 22 Feb 2017 11:15:12 GMT

Now i got.

Thank you for the help.

Re: Displaying SRTM/TIN in ArcScene

AbdullahAnter — Wed, 22 Feb 2017 16:46:15 GMT

Is it work now?

Re: Displaying SRTM/TIN in ArcScene

LeslieJawili — Thu, 23 Feb 2017 08:31:58 GMT

yes by just putting the vertical exaggeration in scene properties, but i still have to check the layer properties of some of my data especially the units of z factors.

Thanks much for the help.