16.56. pc_merge

This is a simple tool for combining multiple ASP-generated point cloud files into a single concatenated file. The output file will be float32 unless the input images are float64 or the user has specified the float64 option.

pc_merge can merge clouds with 1, 3, 4, and 6 bands. In particular, it can merge output-prefix-L.tif images created by stereo (Section 19). This is useful if it is desired to create an orthoimage from a merged cloud with point2dem (Section 16.57).

In that case, one can invoke pc_merge on individual L.tif files to create a merged texture file to pass to point2dem together with the merged point cloud tile.

Example:

pc_merge cloud1.tif cloud2.tif -o merged_cloud.tif

Usage:

pc_merge [options] <input files> -o <output file>

Command-line options for pc_merge:

-d, --write-double

Force output file to be float64 instead of float32.

-o, --output-file <name>

Specify the output file (required).

--threads <integer (default: 0)>

Select the number of threads to use for each process. If 0, use the value in ~/.vwrc.

--cache-size-mb <integer (default = 1024)>

Set the system cache size, in MB.

--tile-size <integer (default: 256 256)>

Image tile size used for multi-threaded processing.

--no-bigtiff

Tell GDAL to not create BigTiff files.

--tif-compress <None|LZW|Deflate|Packbits (default: LZW)>

TIFF compression method.

-v, --version

Display the version of software.

-h, --help

Display this help message.