Can't create orthographic projection from laser scans

Follow

Harijs_Pavelcuks

• October 18, 2022 15:12

Hello. So far I have been making models and orthophotos from pictures - all works fine! 

But now tried to make a next step. Laser scans in CR. I have several data sets (laser scaning points and a few pictures from trimble sx12), which are already stiched together in other software (trimble business center). I have them exported in .ptx and .e57 formats. I imported them in CR, made model, textured it.

Further I wanted to make an ortophoto of a facade, but got an error: Calculating orthographic projection Invalid or corrupted input data.

Is there any solution to this? What am I doing wrong?

Is there any other way how to make ortophoto of a facade? I need 2D picture of a facade with correct scale, units.

Screenshot:

0

• 

  Harijs_Pavelcuks

  • October 18, 2022 15:17

  

  0

  Comment actions Permalink
• 

  Harijs_Pavelcuks

  • October 18, 2022 16:42
  • Edited

  Seems like the issue was import settings.

  Imported .ptx file in new CR file, with different settings - main difference was georeferenced line changed from yes to no, as this data set was in local system (X=100, Y=200, H=300).

  No more of this error. Got my facade orthophoto.

  But found other "error". Texturing was made from few pictures, in bad lightning conditions. So colours are in poor condition. Is there an option to make facade orthophoto from point cloud insted of textured model?

  

   

  0

  Comment actions Permalink
• 

  Ondrej Trhan CR

  • October 19, 2022 07:52

  Hi,
  just from laser scans you will get worse textures and therefore worse ortho. For texturing/coloring are used data from LSPs, not directly from scans.

  In this case is better to take some images and use them for texturing. This workflow is used in most cases.

  0

  Comment actions Permalink

Please sign in to leave a comment.