View Full Version : Overload Maya API operators

05 May 2005, 05:45 PM
I want to write a modulus node, now that i have a taste for the API. In a simple test program (console application) I can modulus to work no probs as its just a %, but when I do it inside a node it comes up, "illegal left operand has type double", do I have to overload the operator, and although I understand the process outside the API, how would I do it inside the API.

Is thats not a stupid question.


05 May 2005, 07:52 PM
Can you post the code? It's kinda difficult to tell otherwise

05 May 2005, 08:03 PM
something along these lines

MStatus mod::compute(const MPlug &plug, MDataBlock &data)
MStatus status;
if(plug == output)
MDataHandle inputData1 = data.inputValue( inputA );
MDataHandle inputData2= data.inputValue( inputB );
double inp1 = inputData1.asDouble();
double inp2= inputData2.asDouble();

MDataHandle outputData = data.outputValue( output );
outputData.set(inp1 % inp2);


status = MS::kUnknownParameter;

return status;


05 May 2005, 08:33 AM
The % operator is only defined for integers. That's what your compiler is trying to tell you in a rather opaque way.

For doubles use fmod() from math.h or cmath

05 May 2005, 09:34 AM
thanks m8, I can never use the help file in this thing.

AnDy (jogging the learning curve)

05 May 2005, 09:36 AM
i think its not possible

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05 May 2005, 09:36 AM
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