Linux:
mkdir build
cd build
cmake ../
make
Linux (manual build):
Tested on Ubuntu 22.04 LTS
Install required packages
apt install build-essential libbrotli-dev liblaszip-dev
Build binaries
cd src
g++ -std=c++20 -I../include/ -I../modules -idirafter../libs executable_extract_area.cpp ../modules/unsuck/unsuck_platform_specific.cpp -lbrotlidec -llaszip -o extract_area
g++ -std=c++20 -I../include/ -I../modules -idirafter../libs executable_extract_profile.cpp ../modules/unsuck/unsuck_platform_specific.cpp -lbrotlidec -llaszip -o extract_profile
Windows:
mkdir build
cd build
cmake ../
- Then open the generated sln file in Visual Studio.
- Make sure "Release" build is selected.
- Build "extract_profile".
WITH_AWS_SDK: Build with s3 support. Requires AWS SDK.
Extract points with the elevation profile:
// minimal
./extract_profile <input> -o <output> --coordinates "{x0, y1}, {x1, y}, ..." --width <scalar>
// Extract points in certain LOD level ranges
./extract_profile <input> -o <output> --coordinates "{x0, y1}, {x1, y}, ..." --width <scalar> --min-level <integer> --max-level <integer>
- input: A point cloud generated with PotreeConverter 2.
- output: Can be files ending with *.las, *.laz, *.potree or it can be "stdout". If stdout is specified, a potree format file will be printed directly to the console.
- min-level, max-level: Level range including the min and max levels. Can be omitted to process all levels.
With --get-candidates, you'll get the number of candidate points, i.e., the number of points inside all nodes intersecting the profile. The actual number of points might be orders of magnitudes lower, especially if --width is small.
./extract_profile <input> --coordinates "{x0, y1}, {x1, y}, ..." --width <scalar> --min-level <integer> --max-level <integer> --get-candidates
A practical example:
./extract_profile ~/dev/tmp/retz -o ~/dev/tmp/retz.laz --coordinates "{-37.601, -100.733, 4.940},{-22.478, 75.982, 8.287},{66.444, 54.042, 5.388},{71.294, -67.140, -2.481},{165.519, -26.288, 0.253}" --width 2 --min-level 0 --max-level 3
