one.empty3.feature.QuadTransform2D Maven / Gradle / Ivy

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/*
 * Copyright (c) 2022-2023. Manuel Daniel Dahmen
 *
 *
 *    Copyright 2012-2023 Manuel Daniel Dahmen
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package one.empty3.feature;

import one.empty3.library.Point3D;

import java.awt.*;
import java.awt.image.BufferedImage;

public class QuadTransform2D {
    private BufferedImage i1, i2;
    private Point3D[] p1;
    private Point3D[] p2;

    public class Inter {
        Point3D p;
        Color c;

        public Inter(Point3D p, Color c) {
            this.p = p;
            this.c = c;
        }

        public Point3D getP() {
            return p;
        }

        public void setP(Point3D p) {
            this.p = p;
        }

        public Color getC() {
            return c;
        }

        public void setC(Color c) {
            this.c = c;
        }
    }

    public QuadTransform2D(BufferedImage i1, BufferedImage i2, Point3D[] p1, Point3D[] p2) {
        this.i1 = i1;
        this.i2 = i2;
        this.p1 = p1;
        this.p2 = p2;
    }

    private Point3D[] quadTemp(double t) {
        Point3D[] pTemp = new Point3D[4];
        for (int i = 0; i < p1.length; i++) {
            pTemp[i] = p1[i].plus(p2[i].moins(p1[i]).mult(t));
        }
        return pTemp;
    }

    public Point3D pT(Point3D[] pTemp, double p1243, double p1423) {
        Point3D plus0 = pTemp[0].plus(pTemp[1].moins(pTemp[0]).mult(p1243));
        Point3D plus1 = pTemp[3].plus(pTemp[2].moins(pTemp[4]).mult(p1243));
        return plus0.plus((plus1.moins(plus0).mult(p1423)));
    }

    public Inter inter(double p1243, double p1423, double t) {
        // Color cp0+(cpa0-cpaT)*t ???
        // Texture???
        Point3D[] pTemp = quadTemp(t);
        Point3D[] p0 = quadTemp(0.0);
        Point3D pa0 = pT(p0, p1243, p1423);
        Point3D pa1 = pT(p1, p1243, p1423);
        Point3D ca0 = new Point3D(i1.getRGB((int) (double) (pa0.getX()), (int) (double) pa0.getY()));
        Point3D ca1 = new Point3D(i1.getRGB((int) (double) (pa0.getX()), (int) (double) pa0.getY()));
        Point3D pT = pT(pTemp, p1243, p1423);
        Point3D cAt = ca0.plus(ca1.moins(ca0).mult(t));
        Color color = new Color((float) (double) (cAt.get(0)),
                (float) (double) (cAt.get(1)),
                (float) (double) (cAt.get(2)));// p.toColor()
        return new Inter(pT, color);
    }


}