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Filtering trees with Mac

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I own about 200 acres of forest with about 350' of elevation change. I have a DJI 4 Advanced and my goal is to produce elevation maps to plan the building of one or more ponds.

I've tried, and failed, at researching how to do this. It appears to be fairly easy if you don't have a Mac to use the LAS file and the LAS toolkit in QGIS to perform these functions. I've tried to run the LAS tools through WINE with no success. I tried GRASS, but it's LAS toolkit also doesn't work on a Mac.

So my question is "is there a way to filter out trees (it's that time a year again when the leaves are down, so I can get shots through to the floor) with either the LAS file or the GeoTIFF on a Mac?".

If there is no easy way, I'll try again at using WINE, or as a last resort might resort to buying a Windows computer. I've been using MapsMadeEasy to process my pictures.

qgis geotiff-tiff mac las unmanned-aerial-vehicle

share|improve this question

edited 4 mins ago

Kadir Şahbaz

4,56721531

asked Jan 18 at 2:49

DsawDsaw

42

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  There is certainly no reason you need to use Windows for point cloud processing. Have you looked at the following tutorial?: docs.qgis.org/2.8/en/docs/training_manual/forestry/…. If you are willing to work in R, you can use the lasground() function in the lidr package: cran.r-project.org/web/packages/lidR/lidR.pdf. Lastools has a lasground tool: rapidlasso.com/lastools/lasground. Another option is to use the PDAL ground tool: pdal.io/tutorial/pcl_ground/index.html
  
  – Aaron♦
  Jan 18 at 3:18
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If you are using photoscan you can classify the pointcloud. You can also check this: gis.stackexchange.com/questions/191034/…, or try pdal
  
  – Gerardo Jimenez
  Jan 18 at 13:29
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Check this also macappstore.org/pdal
  
  – Gerardo Jimenez
  Jan 18 at 13:34
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for the answers, it'll have to wait till next week for me to try some of these out and I'll report back.
  
  – Dsaw
  Jan 19 at 2:41
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Solved my problem, stupid syntax error. Obviously common knowledge for those in the know, but as a newbie, I saw the ^ in the examples and was including it in the commands.
  
  – Dsaw
  Mar 26 at 1:13
  

  
  
  
  

 | 
show 3 more comments

0

0

I own about 200 acres of forest with about 350' of elevation change. I have a DJI 4 Advanced and my goal is to produce elevation maps to plan the building of one or more ponds.

I've tried, and failed, at researching how to do this. It appears to be fairly easy if you don't have a Mac to use the LAS file and the LAS toolkit in QGIS to perform these functions. I've tried to run the LAS tools through WINE with no success. I tried GRASS, but it's LAS toolkit also doesn't work on a Mac.

So my question is "is there a way to filter out trees (it's that time a year again when the leaves are down, so I can get shots through to the floor) with either the LAS file or the GeoTIFF on a Mac?".

If there is no easy way, I'll try again at using WINE, or as a last resort might resort to buying a Windows computer. I've been using MapsMadeEasy to process my pictures.

qgis geotiff-tiff mac las unmanned-aerial-vehicle

share|improve this question

edited 4 mins ago

Kadir Şahbaz

4,56721531

asked Jan 18 at 2:49

DsawDsaw

42

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  There is certainly no reason you need to use Windows for point cloud processing. Have you looked at the following tutorial?: docs.qgis.org/2.8/en/docs/training_manual/forestry/…. If you are willing to work in R, you can use the lasground() function in the lidr package: cran.r-project.org/web/packages/lidR/lidR.pdf. Lastools has a lasground tool: rapidlasso.com/lastools/lasground. Another option is to use the PDAL ground tool: pdal.io/tutorial/pcl_ground/index.html
  
  – Aaron♦
  Jan 18 at 3:18
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  If you are using photoscan you can classify the pointcloud. You can also check this: gis.stackexchange.com/questions/191034/…, or try pdal
  
  – Gerardo Jimenez
  Jan 18 at 13:29
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Check this also macappstore.org/pdal
  
  – Gerardo Jimenez
  Jan 18 at 13:34
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for the answers, it'll have to wait till next week for me to try some of these out and I'll report back.
  
  – Dsaw
  Jan 19 at 2:41
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Solved my problem, stupid syntax error. Obviously common knowledge for those in the know, but as a newbie, I saw the ^ in the examples and was including it in the commands.
  
  – Dsaw
  Mar 26 at 1:13
  

  
  
  
  

 | 
show 3 more comments

I own about 200 acres of forest with about 350' of elevation change. I have a DJI 4 Advanced and my goal is to produce elevation maps to plan the building of one or more ponds.

I've tried, and failed, at researching how to do this. It appears to be fairly easy if you don't have a Mac to use the LAS file and the LAS toolkit in QGIS to perform these functions. I've tried to run the LAS tools through WINE with no success. I tried GRASS, but it's LAS toolkit also doesn't work on a Mac.

So my question is "is there a way to filter out trees (it's that time a year again when the leaves are down, so I can get shots through to the floor) with either the LAS file or the GeoTIFF on a Mac?".

If there is no easy way, I'll try again at using WINE, or as a last resort might resort to buying a Windows computer. I've been using MapsMadeEasy to process my pictures.

qgis geotiff-tiff mac las unmanned-aerial-vehicle

share|improve this question

edited 4 mins ago

Kadir Şahbaz

4,56721531

asked Jan 18 at 2:49

DsawDsaw

42

share|improve this question

edited 4 mins ago

Kadir Şahbaz

4,56721531

asked Jan 18 at 2:49

DsawDsaw

42

share|improve this question

edited 4 mins ago

Kadir Şahbaz

4,56721531

asked Jan 18 at 2:49

DsawDsaw

42

edited 4 mins ago

Kadir Şahbaz

4,56721531

edited 4 mins ago

Kadir Şahbaz

4,56721531

asked Jan 18 at 2:49

DsawDsaw

42

asked Jan 18 at 2:49

DsawDsaw

42