Re: [GRASS-dev] r.in.lidar tuning

2014-09-05 Thread Markus Neteler
On Mon, May 19, 2014 at 6:30 AM, Hamish hamish.webm...@gmail.com wrote: [ wish for r.in.lidar: ] ... filter Only import points of selected return type If not specified, all points are imported options: first,last,mid which would be great for r.in.lidar

Re: [GRASS-dev] r.in.lidar tuning

2014-08-04 Thread Markus Neteler
On 5/17/14, Newcomb, Doug doug_newc...@fws.gov wrote: I pulled the latest 71 trunk ( 60278) , applied the patch, and the intensity option appears to work. Just for the record: added in trunk in r61480. Markus ___ grass-dev mailing list

Re: [GRASS-dev] r.in.lidar tuning

2014-05-18 Thread Hamish
[ wish for r.in.lidar: ] ... filter Only import points of selected return type If not specified, all points are imported options: first,last,mid which would be great for r.in.lidar as well to avoid that I need to split the file with las2las

Re: [GRASS-dev] r.in.lidar tuning

2014-05-16 Thread Markus Neteler
(back to an older topic) On Tue, Oct 8, 2013 at 8:37 PM, Markus Neteler wrote: On Tue, Oct 8, 2013 at 4:31 PM, Markus Metz wrote: Markus Neteler wrote: [ wish for r.in.lidar: ] ... filter Only import points of selected return type If not specified, all points are

Re: [GRASS-dev] r.in.lidar tuning

2014-05-16 Thread Newcomb, Doug
Great! I will test when I have a spare moment! In the long term.. Any chance of filtering the input points through an elevation raster to subtract to get height above ground before statistics? las file--- subtract value of elevation grid generated from ground points -- run statistics on

Re: [GRASS-dev] r.in.lidar tuning

2014-05-16 Thread Newcomb, Doug
I pulled the latest 71 trunk ( 60278) , applied the patch, and the intensity option appears to work. Doug On Fri, May 16, 2014 at 6:02 PM, Markus Neteler nete...@osgeo.org wrote: (back to an older topic) On Tue, Oct 8, 2013 at 8:37 PM, Markus Neteler wrote: On Tue, Oct 8, 2013 at 4:31

Re: [GRASS-dev] r.in.lidar tuning

2013-10-17 Thread Newcomb, Doug
Any thoughts on applying further filtering and using the intensity of the return for statistical analysis? For example, if one wanted to calculate the mean/range/in/max/std_dev intensity of the last returns or first returns. Doug On Tue, Oct 8, 2013 at 2:37 PM, Markus Neteler

Re: [GRASS-dev] r.in.lidar tuning

2013-10-08 Thread Markus Metz
Markus Neteler wrote: One more wish comes to mind (indeed, I started cross-porting but :-) v.in.lidar comes with a filter (which should perhaps be generalized to the nth return; or, the last *is* the nth return but then mid could be more than one in this case?): Yes, for n returns, the

Re: [GRASS-dev] r.in.lidar tuning

2013-10-08 Thread Markus Neteler
On Tue, Oct 8, 2013 at 4:31 PM, Markus Metz markus.metz.gisw...@gmail.com wrote: Markus Neteler wrote: One more wish comes to mind (indeed, I started cross-porting but :-) v.in.lidar comes with a filter (which should perhaps be generalized to the nth return; or, the last *is* the nth return

Re: [GRASS-dev] r.in.lidar tuning

2013-10-07 Thread Markus Metz
Markus Neteler wrote: PS: if the LAS file is not accessible, r.in.lidar happily segfaults. My attempts to fix that were yet unsuccessful. Fixed in r57951,2 for [r|v].in.lidar Markus M ___ grass-dev mailing list grass-dev@lists.osgeo.org

Re: [GRASS-dev] r.in.lidar tuning

2013-10-07 Thread Markus Neteler
On Mon, Oct 7, 2013 at 8:28 AM, Markus Metz markus.metz.gisw...@gmail.com wrote: Markus Neteler wrote: PS: if the LAS file is not accessible, r.in.lidar happily segfaults. My attempts to fix that were yet unsuccessful. Fixed in r57951,2 for [r|v].in.lidar Thanks! One more wish comes to

[GRASS-dev] r.in.lidar tuning

2013-10-06 Thread Markus Neteler
Hi, I have ported the -p Print LAS file info and exit from v.in.lidar to r.in.lidar I have also made a major rewrite of the manual which was too much cloned from r.in.xyz: http://grass.osgeo.org/grass70/manuals/r.in.lidar.html Further improvements are welcome (in SVN or as SVN diff). cheers