[pdal] converting las to tif

[Jelto Buurman]

Hi,
I want to use pdal to convert lidar data to tif. If I am using the following
pipline:
{
  	"pipeline":[
 	{
            	"type" : "readers.las",
            		"filename" : "linputfile.laz"
        },
  	{
      		"type":"filters.range",
      			"limits":",Classification[2:2]"
    	},
    	{ 
		"type": "writers.gdal",
      			"resolution": 1,
      			"radius": 1.5,
      			"filename":"outputfile.tif"
    	}
  		]
}
 I get a tif file, but the interpolation method is idw. So ever edge in the
surface will be fased and the peeks will also be cutted of.
If I am using the following pipeline:

{
  	"pipeline":[
 	{
            	"type" : "readers.las",
            		"filename" : "inputfile.laz"
        },
  	{
      		"type":"filters.range",
      			"limits":",Classification[2:2]"
    	},
	{
      		"type":"filters.delaunay"
    	},
 	    	{ 
	       "type": "writers.ply",
       		"filename": "output.ply",
        	"faces": true
    	}
  		]
}
 I  get a  very big textfile, witch I even cannot load into QGIS. Does
anyone have an advise?

Thanks


Jelto