Ok, I will look at NumPy ... I have another question about performance. Are the array operations such as matrix multiplication implemented in python or in C ? I was under the impression that the function calls in numarray are only wrappers to C code, but now I suspect that matrix multiplicaiton is implemented in python and executed in the interpreter. Is that true ?
Can someone also please point me to examples of how I could make my own array classes. Basically all I need is vectors and 3x3 matrices. I already have all of the multiplication code in my C++ classes and only need wrappers. But how can I create an array class and intercept operators calls like * + -. This is not neccessarily a solution that I want to follow, but it may be what I have to do for now. BTW, here is also the problem I have with a numarray. I have created a vector like so... mPyObject = PyArray_FromDimsAndData(GeoVec4f::sD,GeoVec4f::sDim, PyArray_FLOAT,(char*)mValue.mValues); Py_INCREF(mPyObject); The PyObject is then used as a member called "gradient" in another embedded class. When I execute the following script x.gradient*3 my app just crashes. But when I execute print (x.gradient) x.gradient*3 everything works fine... I assum there must be some kind of reference count problem... Cheers Jochen -- http://mail.python.org/mailman/listinfo/python-list
