I have downloaded tif files to use as DSM file on the remote -control for Norway.  The problem is that these are height above average sea level, not ellipsoidal height.  This gives a 43 meters error.


Is there anywhere I can download DSM files in the correct format (for Norway).

I don't think you can.

1st Method : find it trough your national database : https://www.kartverket.no/
2nd method : Change your actual raster by adding the geoid height in QGIS
The geoid model :https://s3-eu-west-1.amazonaws.c ... _NN2000_EUREF89.tif
The formula : Raster ASL + geoid model

LV_Forestry Posted at 10-31 04:57
1st Method : find it trough your national database : https://www.kartverket.no/
2nd method : Change your actual raster by adding the geoid height in QGIS
The geoid model :https://s3-eu-west-1.amazonaws.com/download.agisoft.com/gtg/no_kv_HREF2018A_NN2000_EUREF89.tif

Thank you - that fixed it.

I have already been in contact with kartverket, so i went for your 2nd method.  Worked like a charm.  

I have been down the rabitthole with this one, and you made my day.

Studbaker Posted at 10-31 05:46
Thank you - that fixed it.

I have already been in contact with kartverket, so i went for your 2nd method.  Worked like a charm.  

you're welcome

Hello there Studbaker. I am sorry for the trouble this has caused before and it is great to know that you were able to rectify the issue and for giving out how you have fixed it as well. Thank you and have a great day.

DJI Stephen Posted at 11-1 19:13
Hello there Studbaker. I am sorry for the trouble this has caused before and it is great to know that you were able to rectify the issue and for giving out how you have fixed it as well. Thank you and have a great day.

Hi DJI Stephen, it will be good to send to the DJI pilot 2 team if there is one, to integrate the SHP files in addition to the KMZ. On GSpro the option was paid but rather comfortable.

ro_walker Posted at 10-31 04:26
I don't think you can.

Incorrect.

patiam Posted at 11-2 11:41
Incorrect.

My pleasure!

LV_Forestry Posted at 11-2 00:33
Hi DJI Stephen, it will be good to send to the DJI pilot 2 team if there is one, to integrate the SHP files in addition to the KMZ. On GSpro the option was paid but rather comfortable.

Hi there LV_Forestry. Thank you for giving out these information. I will forward these information to the designated DJI Department for attention. Thank you.  

LV_Forestry Posted at 11-2 00:33
Hi DJI Stephen, it will be good to send to the DJI pilot 2 team if there is one, to integrate the SHP files in addition to the KMZ. On GSpro the option was paid but rather comfortable.

I second that.  I Would like shape file import as you had on GS Pro.

Make that 3. All DJI mapping apps should import shp.

LV_Forestry Posted at 10-31 04:57
1st Method : find it trough your national database : https://www.kartverket.no/
2nd method : Change your actual raster by adding the geoid height in QGIS
The geoid model :https://s3-eu-west-1.amazonaws.com/download.agisoft.com/gtg/no_kv_HREF2018A_NN2000_EUREF89.tif

Is there any way to use this TIf file to subtract the heigh in LAS (point cloud) file ?  Convert point cloud from ellipsoidal height, to nn2000 height?   The point cloud has to be delivered with the nn2000 height standard, but the point cloud produced is with ellipsoidal height.

Studbaker Posted at 11-15 03:40
Is there any way to use this TIf file to subtract the heigh in LAS (point cloud) file ?  Convert point cloud from ellipsoidal height, to nn2000 height?   The point cloud has to be delivered with the nn2000 height standard, but the point cloud produced is with ellipsoidal height.

Which post processing software are you using ?

LV_Forestry Posted at 11-15 04:17
Which post processing software are you using ?

WEBODM for processing - it produces a LAs file.

I can use Qgis for the converting if I only knew how to

Studbaker Posted at 11-15 04:19
WEBODM for processing - it produces a LAs file.

I can use Qgis for the converting if I only knew how to

You could try to use the geoid model in Terra
https://cdn.proj.org/no_kv_HREF2018B_NN2000_EUREF89.tif