Disable interpolation when adding DEM

[jt7747]

I've been using some small test DEMs to figure out why globalmapper isn't matching up perfectly with tiffs exported from ArcGIS.

Some of these rasters are just 10 x 10. I notice I can't see the cell boundaries because globalmapper is doing some interpolation when I haven't asked it too. In arcgis when you zoom in really far you see each discrete pixel. Not so in globalmapper. How do I turn off this interpolation feature? I don't want my data interpolated, I want to see each cell, even if it looks 'blocky'. Thanks

[global_mapper]

You can disable this by opening the Options dialog for the DEM layer, then setting the Resampling method to 'Nearest Neighbor' (or unchecking the anti-alias option in versions older than v11.02).

Let me know if I can be of further assistance.

Thanks,

Mike
Global Mapper Support
support@globalmapper.com

[jt7747]

Thank you I will double check that. Can you suggest the 'best' format for exporting from ArcGIS to global mapper for UK data using british grid? I'm getting slightly unreliable results using tif.

Thanks

[global_mapper]

For elevation data the Arc ASCII Grid or Arc Binary Grid formats should both load fine into Global Mapper, although I would also expect elevation TIFF files to load just fine as well.

Let me know if I can be of further assistance.

Thanks,

Mike
Global Mapper Support
support@globalmapper.com