Editable Terrain Manager and its Brushes

SomeFusion

10-05-2009 13:01:57

Hi,

I'm currently trying to convert this code from C++ to Python:
viewtopic.php?t=6370

This is the code I have till now:

    def averageFilter(self, x, z, brush, intensity):

        #When you're doing a loop possibly thousands of times, it's worth setting these

        #aside rather than calling a function every iteration.

        iWidth = brush.getWidth()

        iHeight = brush.getHeight()



        storageclass = ctypes.c_float * (iWidth * iHeight)

        vecReturnBuffer =  storageclass()

        vecHeightBuffer = storageclass()

       

        ptr = ctypes.pointer(vecReturnBuffer)

       

        brushReturn = ET.Brush(ctypes.pointer(vecReturnBuffer), iWidth, iHeight)

        brushHeights = ET.Brush(ctypes.pointer(vecHeightBuffer), iWidth, iHeight)



        self.terrainManager.getHeights(x, z, brushHeights)



        fSumHeights = 0.0

        iNumHeights = iWidth * iHeight



        # Find the sum of all the heights within the sample

        i = 0

        j = 0

        while i < iWidth:

            while j < iHeight:

                fSumHeights += brushHeights.at(i, j)

                j += 1

            i += 1

       



        #Find the average height within the sample

        fAvgHeight = fSumHeights / iNumHeights



        i = 0

        j = 0

        while i < iWidth:

            while j < iHeight:

                fHeight = brushHeights.at(i, j)

                fDelta = fHeight - fAvgHeight

                fShapeMask = shape.at(i, j)



                fDelta = fDelta * fShapeMask * fIntensity



                val = brushReturn.at(i, j) 

                val = fHeight - fDelta

                

                j += 1

            i += 1

The problem is here when I try to create the brushes.

brushReturn = ET.Brush(ctypes.pointer(vecReturnBuffer), iWidth, iHeight)
brushHeights = ET.Brush(ctypes.pointer(vecHeightBuffer), iWidth, iHeight)

ctypes.pointer(vecReturnBuffer) won't give me the correct type which the Brush constructor expects. This is the error I get.
[attachment=0]error.png[/attachment]

This is propably more a python question than a python-ogre question but I don't think its a horribly wrong place to ask here

.
How do I get the correct results from cpython? The other method would be an std::vector of floats, but I don't think this type is wrapped.

Thanks!