Topics

16

General / Point import very different in processing time...

« on: January 06, 2021, 12:22:15 AM »

Hello.

I have several LAS files here.
If I import them as "Local coordinate system" the import is VERY fast.
Unfortunately, you can`t switch to the "correct" system after import.

If I load the file directly with the correct specification of the system, the import takes longer than average.
So long that it is impractical.

Is there not another way for the import?

17

General / Interpolation for Geoid GeoTif?

« on: December 18, 2020, 04:37:49 PM »

Hello.

Does anyone know exactly how the Geotiffs are interpolated for the Vertical Elevation Correction?

I have a geotiff for geoid undulation with a resolution of "only" 310*284 pixels.
(It extends over several hundred kilometers).

In my survey program it says that there bilinear is interpolated in between.

How does Metashape interpolate here?

18

General / Crop a DEM or Orthophoto

« on: December 02, 2020, 10:01:31 PM »

Hello.

Is there a way I can crop a DEM or Orthophoto?
Something like how I can select and delete a point cloud?

I want to delete ugly and unnecessary border areas.