filters.csf¶
The Cloth Simulation Filter (CSF) classifies ground points based on the approach outlined in [Zhang2016].
Example¶
The sample pipeline below uses CSF to segment ground and non-ground returns, using default options, and writing only the ground returns to the output file.
[
"input.las",
{
"type":"filters.csf"
},
{
"type":"filters.range",
"limits":"Classification[2:2]"
},
"output.laz"
]
Options¶
- resolution
Cloth resolution. [Default: 1.0]
- ignore
A range of values of a dimension to ignore.
- returns
Return types to include in output. Valid values are “first”, “last”, “intermediate” and “only”. [Default: “last, only”]
- threshold
Classification threshold. [Default: 0.5]
- smooth
Perform slope post-processing? [Default: true]
- step
Time step. [Default: 0.65]
- rigidness
Rigidness. [Default: 3]
- iterations
Maximum number of iterations. [Default: 500]