Large Terrain Mesh

solo

Sure.

Open dxf in SU, then save as SU6 version.
Open it up in DE, and select reduce, process and select 90 percent. Then select heal and save as SU model.

That's all.

dbwv69

@solo said:

Sure.

Open dxf in SU, then save as SU6 version.
Open it up in DE, and select reduce, process and select 90 percent. Then select heal and save as SU model.

That's all.

Oh, I see. So you were only removing 10% of the triangles. No wonder I was having issues, I was clicking 10%, thus removing 90% of the triangles.

solo

No, remove 90 percent. see file size from 35MB to 2.6MB

see image:

de image.jpg

dbwv69

@solo said:

No, remove 90 percent. see file size from 35MB to 2.6MB

see image:

Then there is hope for it still. I am doing the same, or so I thought, but the results are not like yours. I wonder what it could be? My version comes out with strange patches or blotches all over it..

mac1

Other filtering approaches using MeshLab again but this time doing Vertex Clustering Decimation. SU edges 25625,16900 faces and file size 2599K. The filters it includes are some developers have incorporated in their apps. .Vertex Clustering Decimation.jpg[/attachment]
IMO trying to take this model and editing is not the way to go based on the goal of your OP. To create a virtual tour you must get to the point of selective editing only portions of the map along the lines bjornkn discusses This can be in the decimation or interpolation sense
Next step, layers and selective edits?

Vertex Clustering Decimation.jpg

dbwv69

@mac1 said:

Other filtering approaches using MeshLab again but this time doing Vertex Clustering Decimation. SU edges 25625,16900 faces and file size 2599K. The filters it includes are some developers have incorporated in their apps. .Vertex Clustering Decimation.jpg[/attachment]
IMO trying to take this model and editing is not the way to go based on the goal of your OP. To create a virtual tour you must get to the point of selective editing only portions of the map along the lines bjornkn discusses This can be in the decimation or interpolation sense
Next step, layers and selective edits?

Those results look quite promising and seem to retain much of the fine detail.

I completely agree about only editing certain portions along the line. Given the sample I uploaded, a true sense of perspective is lost. Here is a set of 3 meter contours for the entire area involved. I would upload the full resolution version but the file size exceeds the attachment limits. The small patch I uploaded is located near the lower portion of the midpoint. See attachment:

Full Area Contours.zip

solo

Got that in a DEM file? or even .obj, dxf.

dbwv69

@solo said:

Got that in a DEM file? or even .obj, dxf.

Yes. I am actually using a DEM file as the source for the sample DXF I uploaded.

solo

If you can upload it, or part of it, I'd like to try something with Terragen.

dbwv69

@solo said:

If you can upload it, or part of it, I'd like to try something with Terragen.

I tried uploading it earlier and it was rejected because the file was too large.

solo

Got a dropbox account? they are free, safe and private.

dbwv69

@solo said:

Got a dropbox account? they are free, safe and private.

No but I can get one. Where do you reccommend?

solo

Download & Install the Dropbox Desktop App

Dropbox helps you create, share, and collaborate on your files, folders, and documents. Learn how to download and install Dropbox.

(www.dropbox.com)

dbwv69

@solo said:

Download & Install the Dropbox Desktop App

Dropbox helps you create, share, and collaborate on your files, folders, and documents. Learn how to download and install Dropbox.

(www.dropbox.com)

I'll go create an account now. What format do you prefer the data to be in? I am currently extracting it to a DXF mesh, is that ok?

solo

Sure, or even DEM.

dbwv69

@solo said:

Sure, or even DEM.

The DXF mesh extract was huge and is still uploading to my dropbox but the DEM extract was surprisingly small. See attached:

Full Area DEM.zip

solo

You may want to check the dem file, it's kinda wierd, hard to explain, lacks all detail.

dbwv69

@solo said:

You may want to check the dem file, it's kinda wierd, hard to explain, lacks all detail.

I looked at it and see what you mean. I must have inadvertently selected the wrong scale when I exported it. The DXF file just finished uploading, here is the link: