export georeferenced mesh/pointcloud

Hi,

I can’t figure out how to export georeferenced pointcloud.
I have aligned all photos, imported ground controll and constructed high density model.
Now, when I export it to xyz file and import it to AutoCAD I can see that it is not properly oriented and scaled.
Does anyone have a clue what do I do wrong?

Cheers

Hi maciej.banaszkiewicz

in WORKLOW->SETTINGS-COORDINATE SYSTEM->PROJECT COORDINATE SYSTEM and OUTPUT COORDINATE SYSTEM are set properly ( OUTPUT cor system can be changed as you need ) Project Coordinate system must be set before ALIGNMENT.

In Export settings check if you have set to GRID PLANE or OUTPUT (output coordinate system ) .

Project coordinate system and output coordinate system is set to local:1 - Euclidean, is that correct?

So the correct workflow should be:
import images> import ground control> add control points on images> align images> calculate the model> export

Am I right?

Hi maciej.banaszkiewicz

If its a local:1 - Euclidean then its not truly georeferenced, its use local coordinates and that mean no georeference with real world.

You need to set proper COORDINATE SYSTEM first.

1a. go to WORKFLOW->SETTINGS->COORDINATE SYSTEM-> PROJECT COORDINATE SYSTEM and set desired coordinate system from the list.
1b. Set the OUTPUT COORDINATE SYSTEM - in CS you need to export the results later after processing

  1. Import images - are they containing GPS informations ?

  2. Import GroundControlPoints ( GCP )

  3. Add GCP on images

  4. ALIGN the data

  5. reconstruct model

  6. calculate TEXTUREs

  7. calculate ORTHOS or etc.

  8. Export results and set PROJECT OUTPUT in export dialogue ( aka step 1b. )

I think you should add these workflows to the help available in the application.

Different workflows for the various tasks…

I think that would help a lot of people to figure out what they need to do next.

Wishgranter wrote:

Hi maciej.banaszkiewicz

If its a local:1 - Euclidean then its not truly georeferenced, its use local coordinates and that mean no georeference with real world.

You need to set proper COORDINATE SYSTEM first.

1a. go to WORKFLOW->SETTINGS->COORDINATE SYSTEM-> PROJECT COORDINATE SYSTEM and set desired coordinate system from the list.
(…)

Ok, but which one should I select if my GC is in a local coordinate system (no WGS or GPS coordinates) measured with total station?

Images don’t have any GPS data.

I also noticed that control points show very big errors (see the screenshot).

Hi maciej.banaszkiewicz

Ok, but which one should I select if my GC is in a local coordinate system (no WGS or GPS coordinates) measured with total station?

Images don’t have any GPS data.

Then you can use local:1 - Euclidean

I also noticed that control points show very big errors (see the screenshot).

That can be because of bad axis orientation or wrong GCP coordinate import settings ( set when importing )

If interested, contact me on my email for remote asistance

Has the issue been resolved?

Götz Echtenacher wrote:

Has the issue been resolved?

Yes, I did it finaly… :slight_smile:

Well that’s good to know!
Thanks for the brilliant summary!