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package com.javafx.experiments.utils3d.geom.transform;

import com.javafx.experiments.utils3d.geom.BaseBounds;
import com.javafx.experiments.utils3d.geom.Vec3d;

/**
 *
 */
public class TransformHelper {
    
    private TransformHelper() {}
    
    
    public static BaseBounds general3dBoundsTransform(CanTransformVec3d tx,BaseBounds src, BaseBounds dst, Vec3d tempV3d) {

        if (tempV3d == null) {
            tempV3d = new Vec3d();
        }
        
        double srcMinX = src.getMinX();
        double srcMinY = src.getMinY();
        double srcMinZ = src.getMinZ();
        double srcMaxX = src.getMaxX();
        double srcMaxY = src.getMaxY();
        double srcMaxZ = src.getMaxZ();

        // TODO: Optimize... (RT-26884)
	tempV3d.set(srcMaxX, srcMaxY, srcMaxZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
        double minX = tempV3d.x;
        double minY = tempV3d.y;
        double minZ = tempV3d.z;
        double maxX = tempV3d.x;
        double maxY = tempV3d.y;
        double maxZ = tempV3d.z;

	tempV3d.set(srcMinX, srcMaxY, srcMaxZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
	if ( tempV3d.x  > maxX ) maxX = tempV3d.x;
	if ( tempV3d.y  > maxY ) maxY = tempV3d.y;
	if ( tempV3d.z  > maxZ ) maxZ = tempV3d.z;
	if ( tempV3d.x  < minX ) minX = tempV3d.x;
	if ( tempV3d.y  < minY ) minY = tempV3d.y;
	if ( tempV3d.z  < minZ ) minZ = tempV3d.z;

	tempV3d.set(srcMinX, srcMinY, srcMaxZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
	if ( tempV3d.x  > maxX ) maxX = tempV3d.x;
	if ( tempV3d.y  > maxY ) maxY = tempV3d.y;
	if ( tempV3d.z  > maxZ ) maxZ = tempV3d.z;
	if ( tempV3d.x  < minX ) minX = tempV3d.x;
	if ( tempV3d.y  < minY ) minY = tempV3d.y;
	if ( tempV3d.z  < minZ ) minZ = tempV3d.z;

	tempV3d.set(srcMaxX, srcMinY, srcMaxZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
	if ( tempV3d.x  > maxX ) maxX = tempV3d.x;
	if ( tempV3d.y  > maxY ) maxY = tempV3d.y;
	if ( tempV3d.z  > maxZ ) maxZ = tempV3d.z;
	if ( tempV3d.x  < minX ) minX = tempV3d.x;
	if ( tempV3d.y  < minY ) minY = tempV3d.y;
	if ( tempV3d.z  < minZ ) minZ = tempV3d.z;

	tempV3d.set(srcMinX, srcMaxY, srcMinZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
	if ( tempV3d.x  > maxX ) maxX = tempV3d.x;
	if ( tempV3d.y  > maxY ) maxY = tempV3d.y;
	if ( tempV3d.z  > maxZ ) maxZ = tempV3d.z;
	if ( tempV3d.x  < minX ) minX = tempV3d.x;
	if ( tempV3d.y  < minY ) minY = tempV3d.y;
	if ( tempV3d.z  < minZ ) minZ = tempV3d.z;

	tempV3d.set(srcMaxX, srcMaxY, srcMinZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
	if ( tempV3d.x  > maxX ) maxX = tempV3d.x;
	if ( tempV3d.y  > maxY ) maxY = tempV3d.y;
	if ( tempV3d.z  > maxZ ) maxZ = tempV3d.z;
	if ( tempV3d.x  < minX ) minX = tempV3d.x;
	if ( tempV3d.y  < minY ) minY = tempV3d.y;
	if ( tempV3d.z  < minZ ) minZ = tempV3d.z;

	tempV3d.set(srcMinX, srcMinY, srcMinZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
	if ( tempV3d.x  > maxX ) maxX = tempV3d.x;
	if ( tempV3d.y  > maxY ) maxY = tempV3d.y;
	if ( tempV3d.z  > maxZ ) maxZ = tempV3d.z;
	if ( tempV3d.x  < minX ) minX = tempV3d.x;
	if ( tempV3d.y  < minY ) minY = tempV3d.y;
	if ( tempV3d.z  < minZ ) minZ = tempV3d.z;

        tempV3d.set(srcMaxX, srcMinY, srcMinZ);
	tempV3d = tx.transform(tempV3d, tempV3d);
	if ( tempV3d.x  > maxX ) maxX = tempV3d.x;
	if ( tempV3d.y  > maxY ) maxY = tempV3d.y;
	if ( tempV3d.z  > maxZ ) maxZ = tempV3d.z;
	if ( tempV3d.x  < minX ) minX = tempV3d.x;
	if ( tempV3d.y  < minY ) minY = tempV3d.y;
	if ( tempV3d.z  < minZ ) minZ = tempV3d.z;

        return dst.deriveWithNewBounds( (float) minX, (float) minY, (float) minZ,
                (float) maxX, (float) maxY, (float) maxZ);
    }
    
}