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MRFaceCluster.cc

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/*
    File:       MRFaceCluster.cc

    Function:   

    Author:     Andrew Willmott

    Notes:      
*/

#include "gcl/MRFaceCluster.h"
#include "gcl/Renderer.h"
#include "gcl/Draw.h"

FaceCluster::FaceCluster()
{
}

Void FaceCluster::DrawPlane(Renderer &r)
{
    Point       corners[8];
    Int         i;
        
    MakeBoxCorners(min, max, corners);  
    r.Push();
    r.SetTransform(trans(Rotation(axesQuat)));

    r.N(vl_z).Begin(renPoly)
        .P((corners[0] + corners[4]) * 0.5).P((corners[1] + corners[5]) * 0.5)
        .P((corners[2] + corners[6]) * 0.5).P((corners[3] + corners[7]) * 0.5).End();

    r.Pop();
}

Void FaceCluster::DrawBox(Renderer &r, Bool solid)
{
    Point       corners[8];
    Int         i;
        
    MakeBoxCorners(min, max, corners);  
    r.Push();
    r.SetTransform(trans(Rotation(axesQuat)));
    
    if (solid)
        PaintBox(r, corners);
    else
        FrameBox(r, corners);

    r.Pop();
}

Void FaceCluster::DrawSideAreas(Renderer &r)
{
    Point       corners[8];
    Int         i;
        
    MakeBoxCorners(min, max, corners);  
    r.Push();
    r.SetTransform(trans(Rotation(axesQuat)));

    Point   centre = 0.5 * (min + max);
    Vector  delta;
    
    delta = Vector(max[0], centre[1], centre[2]);
    r.Push().SetTransform(Shift(delta) * Scalef(sqrt(sideArea[0] / 255.0)) * Shift(-delta));
    r.N(vl_x).Begin(renPoly)
        .P(corners[1]).P(corners[2]).P(corners[6]).P(corners[5]).End();
    r.Pop();

    delta = Vector(min[0], centre[1], centre[2]);
    r.Push().SetTransform(Shift(delta) * Scalef(sqrt(sideArea[3] / 255.0)) * Shift(-delta));
    r.N(-Vector(vl_x)).Begin(renPoly)
        .P(corners[0]).P(corners[4]).P(corners[7]).P(corners[3]).End();
    r.Pop();

    delta = Vector(centre[0], max[1], centre[2]);
    r.Push().SetTransform(Shift(delta) * Scalef(sqrt(sideArea[1] / 255.0)) * Shift(-delta));
    r.N(vl_y).Begin(renPoly)
        .P(corners[7]).P(corners[6]).P(corners[2]).P(corners[3]).End();
    r.Pop();

    delta = Vector(centre[0], min[1], centre[2]);
    r.Push().SetTransform(Shift(delta) * Scalef(sqrt(sideArea[4] / 255.0)) * Shift(-delta));
    r.N(-Vector(vl_y)).Begin(renPoly)
        .P(corners[0]).P(corners[1]).P(corners[5]).P(corners[4]).End();
    r.Pop();

    delta = Vector(centre[0], centre[1], max[2]);
    r.Push().SetTransform(Shift(delta) * Scalef(sqrt(sideArea[2] / 255.0)) * Shift(-delta));
    r.N(vl_z).Begin(renPoly)
        .P(corners[4]).P(corners[5]).P(corners[6]).P(corners[7]).End();
    r.Pop();

    delta = Vector(centre[0], centre[1], min[2]);
    r.Push().SetTransform(Shift(delta) * Scalef(sqrt(sideArea[5] / 255.0)) * Shift(-delta));
    r.N(-Vector(vl_z)).Begin(renPoly)
        .P(corners[3]).P(corners[2]).P(corners[1]).P(corners[0]).End();
    r.Pop();

    r.Pop();
}

Void FaceCluster::Draw(Renderer &r)
{
#ifdef ANCIENT
    DrawPlane(r);
    r.SetColour(cGreen);
    r.N(vl_z);
    DrawBox(r, true);
#endif

    DrawBox(r, true);
//  DrawPlane(r);
}

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