Re: [cgkit-user] Pointcloud error

[Matthias B. <mat...@gm...>]

Hi Nick,

On 30.09.12 11:22, Nick Deboar wrote:
> ptc = pointcloud.open("test.ptc", "r", "3delight")
> buf = numpy.zeros(shape=(5, 7+ptc.datasize), dtype=numpy.float32)
> ptc.readDataPoints(5, buf)
> 
> But I get this error:
> 
> Traceback (most recent call last):
>   File "C:\ndPtc\ndPtc.py", line 7, in <module>
>     ptc.readDataPoints(7, buf)
>   File "C:\Python27\lib\site-packages\cgkit\pointcloud.py", line 325, in readDat
> aPoints
>     pntPtr = _arrayPointer(buffer, pntStride*numPoints)
>   File "C:\Python27\lib\site-packages\cgkit\pointcloud.py", line 83, in _arrayPo
> inter
>     raise TypeError("Unsupported array type (data pointer is not an int)")
> TypeError: Unsupported array type (data pointer is not an int)
> 
> Any ideas?

Is this on a 64bit system? Can you run the following snippet in a Python
shell:

>>> import numpy
>>> buf = numpy.zeros(shape=(5, 7), dtype=numpy.float32)
>>> type(buf.__array_interface__.get("data")[0])
<type 'int'>

My suspicion is that you will get a long type instead of an int. If
that's the case and you are in a position to change the cgkit code, you
could try to change line 82 in pointcloud.py from

        if type(data[0]) is not int:

to

	if type(data[0]) not in [int, long]:

Let me know if that fixes the problem.

Cheers,

- Matthias -