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secondo/Algebras/Pointcloud/Pointcloud.examples

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2026-01-23 17:03:45 +08:00
Database : berlintest
Restore : No
Operator : bbox2d
Number : 1
Signature: pointcloud -> rect2
Example : query perimeter(bbox2d(importpointcloud("20110304_10SDH9607.las") transformstream extract[Elem]))
Result : 0.0024097996
Tolerance: 0.001
Operator : bbox
Number : 1
Signature: pointcloud -> rect3
Example : query maxD(bbox(importpointcloud("20110304_10SDH9607.las") transformstream extract[Elem]), 3)
Result : 1.08
Tolerance: 0.01
Operator : no_components
Number : 1
Signature: pointcloud -> int
Example : query no_components(importpointcloud("20110304_10SDH9607.las") transformstream extract[Elem])
Result : 2138
Operator : importpointcloud
Number : 1
Signature: {string, text} -> stream(pointcloud)
Example : query importpointcloud("20110304_10SDH9607.las") count
Result : 37
Operator : extractpoints
Number : 1
Signature: pointcloud -> stream(tuple(Pos: point, Height: double)
Example : query extractpoints(importpointcloud("20110304_10SDH9607.las") transformstream extract[Elem]) count
Result : 2138
Operator : importLAS
Number : 1
Signature : text x bool -> stream(tuple)
Example : query '20110304_10SDH9607.las' importLAS[TRUE] count > 12
Result : TRUE