Changes between Version 24 and Version 25 of Help/LeicaLidarDems


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Timestamp:
Nov 23, 2010 2:40:19 PM (8 years ago)
Author:
iopa
Comment:

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  • Help/LeicaLidarDems

    v24 v25  
    8686and perform the interpolation step (with precision maintaining commands before and after as above):
    8787
    88 8.
     888. Re-set the resolution to 2 for the LiDAR before any calculations.
     89'''`g.region res=2`'''
     90
     919.
    8992'''`r.mapcalculator amap=lidar_mosaic formula=100*A outfile=lidar_mosaicx100 help=-`'''
    9093
     
    105108Once you have an SRTM DEM of sufficient coverage you can patch the LIDAR and SRTM DEMs together, such that the LIDAR takes precedence. This means the lidar_dem should be the first of the input maps on the r.patch command. If the mask is still applied then remove it before patching:
    106109
    107 9. '''`r.mask input=<maskmapname> -r`'''
     11010. '''`r.mask input=<maskmapname> -r`'''
    108111
    109 10. '''`r.patch in=lidar_dem,srtm_dem out=combined_dem`'''
     11211. '''`r.patch in=lidar_dem,srtm_dem out=combined_dem`'''
    110113
    111114[[Image(combo_srtm_lidar.png,width=100)]]
     
    117120To output the DEM (as ascii) and set null values as 0:
    118121
    119 11.    '''`r.out.ascii input=<DEMmapname> output=<outputDEMfile> null=0`'''
     12212.    '''`r.out.ascii input=<DEMmapname> output=<outputDEMfile> null=0`'''
    120123
    121124------------