Re: [R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-12 Thread Chris Reudenbach
Hi Clay, RSAGA provides a comfortable platform independent system wrapper for SAGA but as stated no two-way bindings. If you want to make use of SAGA algorithms () it is IMHO the most straightforward way to import and export the raster files using the e.g. gdalUtils. If you use raster()

Re: [R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-12 Thread Michael Treglia
In case it's of any use to others, I've been scripting some LiDAR processing from R using LASTools, focused on dealing with many individual las files. At this point we've just been extracting a bunch of metadata fields to get a sense of what we have, fixing some metadata errors that we're aware

Re: [R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-12 Thread Clay S
Another option would be to create a SAGA tool chain XML file following the tutorials by Michael Bock, Olaf Conrad, Volker Wichmann, and drag that XML file into the SAGA module library. Does anyone know if you can access your own SAGA tool chains with the RSAGA::rsaga.geoprocessor command? I

Re: [R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-11 Thread Michael Sumner
Try rLidar::readLAS as a straightforward alternative, it's not bullet proof but works fine for a lot of examples. Happy to help extend it if your format is not supported. Cheers, Mike On Fri, 12 Feb 2016 7:41 am Clay S wrote: > Hi > > Is it possible to import a Lidar LAS file

Re: [R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-11 Thread Clay S
Thanks Michael. I did try the rLidar package. What I was trying to do is run a series of SAGA modules on the Lidar data and then load the final raster output into R. I don't necessarily need the Lidar data in R. But how do I pass the Lidar data to the next SAGA module within R? I assume this

Re: [R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-11 Thread Clay S
Thanks Michael Sumner rLidar works well. But how do I pass the lidar data to another SAGA module within R without saving the output of each step as a file in a whole series of SAGA module calls from R? I would like something like the dplyr %>% pipe command. Thanks Clay On Fri, Feb 12, 2016 at

Re: [R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-11 Thread Michael Treglia
Hi Clay, At some point I was looking into something similar, and don't think you can do that with RSAGA. rsaga.geoprocessor() is running things as a system commands (like running from the command line directly), so it is not bringing the Lidar data into R, if I recall correctly. One package you

[R-sig-Geo] LiDAR LAS file import into R via RSAGA

2016-02-11 Thread Clay S
Hi Is it possible to import a Lidar LAS file into R with the rsaga.geoprocessor function of the RSAGA package. The following code runs without an error, but all I get in R is the SAGA console output. The R code below does save a SAGA point cloud file called "test" in my working directory. If I