basic/geometry/vrml_reader/VrmlCoordinate3.cpp

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#include <stdio.h>
#include "VrmlCoordinate3.h"
#include "VrmlStack.h"
#include "Utility.h"

//=============================================================================
// constructor
//
// Description: constructor
//=============================================================================
VrmlCoordinate3::VrmlCoordinate3()
{
}

//=============================================================================
// copy constructor
//
// Description: copy constructor
//=============================================================================
VrmlCoordinate3::VrmlCoordinate3( const VrmlCoordinate3& right )
{
        assert( false );
}

//=============================================================================
// Destructor
//
// Description: Destructor
//=============================================================================
VrmlCoordinate3::~VrmlCoordinate3()
{
        this->points.clear();
}

//=============================================================================
// GetCoordinate
//
// Description: gets the XYZ coordinates for this index
//=============================================================================
const Vector4& VrmlCoordinate3::GetCoordinate( const int i ) const
{
#ifdef _DEBUG
        int size = points.size();
        assert( size > i );                             //this assertion fires if there aren't enough
                                                                        //vertexes in the list
#endif
        assert( points[ i ].Magnitude() < 1000.0 );
        return this->points[ i ];
}

//=============================================================================
// Parse
//
// Description: parses this node from a buffer
//=============================================================================
void VrmlCoordinate3::Parse( char*& buffer )
{
        EatWhite( buffer );
        char pointIndicator[ 80 ] = "";
        sscanf( buffer, "%s", pointIndicator );
        assert( strcmp( pointIndicator, "point" ) == 0 );
        buffer += strlen( pointIndicator );
        EatWhite( buffer );
        assert( *buffer == '[' );
        buffer++;
        
        while( *buffer != ']' )
        {
                float x;
                float y;
                float z;
                sscanf( buffer, "%e%e%e", &x, &y, &z );

                //add the xyz we just read in to the list
                Vector4 vector( x, y, z );
                assert( vector.Magnitude() < 1000.0 );
                this->points.push_back( vector );

                int size = points.size();

                int position = strcspn( buffer, ",]" );
                buffer += position;
                if( *buffer == ',' )
                {
                        buffer++;
                }
                EatWhite( buffer );             
        }
        buffer++;
        EatWhite( buffer );
        buffer++;
}

//=============================================================================
// Render
//
// Description: renders this VrmlObject via the VRML renderer
//=============================================================================
void VrmlCoordinate3::Render( VrmlStack& stack ) const
{
        int size = points.size();
        stack.vrmlCoordinate3 = this;
}

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