Questions tagged [drape]

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Creating Vector Attribute Field with Raster Value in QGIS

I want to create a new attribute field contains data coming from a raster in a vector file. I tried the GRASS v.drape tool but the analysis did not create any new field in shapefile. Also, I tried the ...
3
votes
2answers
746 views

How to drape image on surface using open source software?

I have a image with a known projection - say an aerial photo. I also have a raster surface grid with the same projection - say a DEM. Both are in the same projection. Both have the same extent. How ...
4
votes
1answer
53 views

How to horizontally move polygon on top of the TIN or DEM?

I am wondering if there is any effective method to shifting the polygon (to right hand side) to above the ridge in ArcScene? It shifts around 60 meters which make my analysis inaccurate. Do you know ...
2
votes
1answer
196 views

Drape multiple lines on a DEM with Postgis

I am trying to drape lines on a DEM by following this great tutorial: http://blog.mathieu-leplatre.info/drape-lines-on-a-dem-with-postgis.html When I do it on a single line by giving points ...
2
votes
0answers
174 views

ol3-cesium polygon float

I'm trying to build a web map using ol3-cesium libraries, when I switch 2d map to 3d map my polygons (GeoJSON or GeoServer WMS, WFS) are not draped on stk-terrain but they are under the ground. I ...
1
vote
1answer
263 views

Unable to set raster surface resolution in ArcScene?

I have a 3-band subset of a Landsat image which I want to display in ArcScene (of ArcGIS version 10.2.1). The image is 30 meter resolution and I am draping it on a 25m resolution Aster DEM. But have ...
2
votes
3answers
844 views

What can be used to drape an High res Image over a DEM and get high quality results?

I have a High resolution Georeferenced Orthomosaic, as well as a DEM of that area. The pixel size of both is 20 cm. The data is in Tiff format. I tried to drape the Image on the DEM in ArcScene, but ...