The returns filter takes a single PointView as its input and creates a PointView
for each of the user-specified groups
defined below.
first
is defined as those points whose ReturnNumber
is 1 when the NumberOfReturns
is greater than 1.
intermediate
is defined as those points whose ReturnNumber
is greater than 1 and less than NumberOfReturns
when NumberOfReturns
is greater than 2.
last
is defined as those points whose ReturnNumber
is equal to NumberOfReturns
when NumberOfReturns
is greater than 1.
only
is defined as those points whose NumberOfReturns
is 1.
.. embed::
This example creates separate output files for the last
and only
returns.
{
"pipeline":[
"input.las",
{
"type":"filters.returns",
"groups":"last,only"
},
"output_#.las"
]
}
- groups
- Comma-separated list of return number groupings ('first', 'last', 'intermediate', or 'only')