basic/geometry/vrml_reader/VrmlRotation.cpp

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#pragma warning ( disable : 4786 )

#include <assert.h>
#include <math/math2.h>
#include <math/vector4.h>
#include <stdio.h>
#include "utility.h"
#include "VrmlRotation.h"

//=============================================================================
// Parse
//
// Description: Parses the rotation node from the file
//=============================================================================
void VrmlRotation ::Parse( char*& buffer )
{
        EatWhite( buffer );
        if( buffer[ 0 ] == 'r' )
        {
                Keyword k = VrmlNode::GetKeyword( buffer );
                assert( k = VRML_Rotation );
        }

        float x;
        float y;
        float z;
        float angleInRadians;

        //read in 4 floating point numbers
        int result;
        result = sscanf( buffer, "%f%f%f%f", &x, &y, &z, &angleInRadians );

        //advance to the end of the line
        while( buffer[ 0 ] != '\n' )
        {
                buffer++;
        }

        //build the internal matrix
        double angleInDegrees = Rad2Deg( angleInRadians );
        this->m_Matrix = Matrix4x4::Identity();
        this->m_Matrix.Rotate( Vector4( x, y, z ), angleInDegrees );

        EatWhite( buffer );
        if( buffer[ 0 ] == '}' )
        {
                buffer++;
        }
}

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