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ICP expects ccHObject? #192
Description
Hi,
I'm trying to register two point clouds using ICP, following the documentation (Section 4.1).
Here is my code. My point clouds are stored as .las:
UAVLS_cloud = cc.loadPointCloud(UAVLS_path)
TLS_cloud = cc.loadPointCloud(TLS_path)
matching = cc.ICP(data=TLS_cloud, model=UAVLS_cloud, randomSamplingLimit=1e6)This is the error message:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: ICP(): incompatible function arguments. The following argument types are supported:
1. (data: _cloudComPy.ccHObject, model: _cloudComPy.ccHObject, minRMSDecrease: float = 1e-05, maxIterationCount: int = 20, randomSamplingLimit: int = 50000, removeFarthestPoints: bool = False, method: _cloudComPy.CONVERGENCE_TYPE = <CONVERGENCE_TYPE.MAX_ITER_CONVERGENCE: 1>, adjustScale: bool = False, finalOverlapRatio: float = 1.0, useDataSFAsWeights: bool = False, useModelSFAsWeights: bool = False, transformationFilters: int = <TRANSFORMATION_FILTERS.SKIP_NONE: 0>, maxThreadCount: int = 0) -> _cloudComPy.ICPres
Invoked with: kwargs: data=<_cloudComPy.ccPointCloud object at 0x1554c888b9b0>, model=<_cloudComPy.ccPointCloud object at 0x155554757eb0>, randomSamplingLimit=1000000.0I found the same error message in an older issue #163. I have tried to add more arguments to see if the old problem still exists, but I still get the same error message.
I'm a little bit confused by the ccHObject. ICP expects this class object but, following the docs, we give it a ccPointCloud.
Activity
prascle commentedon Sep 26, 2024
Hello,
The problem is not related to ccHObject which is a generic class for clouds, meshes, etc... : ccPointCloud derives from ccHObject, so it's OK.
randomSamplingLimit requires an integer, and 1e6 is interpreted as a float. You can replace it by 1000000 and it should work.
Maybe it would be preferable to accept floats also here, I will check.
Best regards,
Paul
issue CloudCompare#192 accept float for ICP randomSamplingLimit param…