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

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3D rendering engine. Plus modeling. Expected glsl textures 3d and 2d rendering
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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.io.ProcessFile;
import one.empty3.library.Point3D;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Random;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Vectorize extends ProcessFile {
    private PixM pixM;
    private double distMax = 40.;
    private final Random random = new Random();
    Point3D[][] mapPoints;
    private ArrayList> lists;
    private int[][] p;

    public Vectorize() {
        lists = new ArrayList>();
    }

    public double r() {
        return (random.doubles().iterator().nextDouble() + 1.) / 2;
    }

    @Override
    public boolean process(File in, File out) {
        try {
            lists = new ArrayList>();
            BufferedImage read = ImageIO.read(in);
            if (read == null)
                return false;
            pixM = new PixM(read);
            PixM o = new PixM(pixM.getColumns(), pixM.getLines());

            p = new int[pixM.getColumns()][pixM.getLines()];
            mapPoints = new Point3D[pixM.getColumns()][pixM.getLines()];

            for (int x = 0; x < pixM.getColumns(); x++)
                for (int y = 0; y < pixM.getLines(); y++) {
                    p[x][y] = 0;
                    if (pixM.luminance(x, y) > 0.4)
                        mapPoints[x][y] = new Point3D((double) x, (double) y, pixM.luminance(x, y));
                }

            for (int i = 0; i < pixM.getColumns(); i++) {
                for (int j = 0; j < pixM.getLines(); j++) {
                    if (mapPoints[i][j] != null) {
                        lists.add(new ArrayList<>());
                        lists.get(lists.size() - 1).add(mapPoints[i][j]);
                    }
                }
            }
            AtomicBoolean hasMoved = new AtomicBoolean(true);
            int i = 0, j = 0, k = 0, l = 0;

            ArrayList> lists2 = new ArrayList>();
            ArrayList current;

            while (hasMoved.get()) {
                hasMoved.set(false);
                i = 0;
                int credI = 0;
                while (i < lists.size() && !hasMoved.get()) {
                    ArrayList subList1 = lists.get(i);
                    j = 0;
                    int credJ = 0;
                    while (j < lists.get(i).size() && !hasMoved.get()) {
                        Point3D p1 = subList1.get(j);
                        k = 0;
                        int credK = 0;
                        while (k < lists.size() && !hasMoved.get()) {
                            ArrayList subList2 = lists.get(k);
                            int credL = 0;
                            while (l < subList2.size() && !hasMoved.get()) {
                                Point3D p2 = subList2.get(l);
                                if (neighborhood(p1, p2) && subList1 != subList2 && p1 != p2
                                    /*&& p1.norme() > 0.4 && p2.norme() > 0.4*/) {
                                    subList2.remove(p2);
                                    credL--;
                                    subList1.add(p2);
                                    credJ++;
                                    hasMoved.set(true);

                                    if (subList2.isEmpty()) {
                                        lists.remove(subList2);
                                        credK--;
                                    }
                                }

                                l = l + 1 + credL;
                            }
                            k = k + 1 + credK;
                        }
                        j = j + 1 + credJ;
                    }
                    i = i + 1 + credI;
                }

            }

            Logger.getAnonymousLogger().log(Level.INFO, "Number of blocks = " + lists.size());
            for (ArrayList p3s : lists) {
                if (p3s.size() > 1) {
                    Color r = new Color(p3s.get(0).texture().getColorAt(0.5, 0.5));
                    if (p3s.size() > 0)
                        p3s.forEach(point3D -> o.setValues((int) (double) (point3D.getX()), (int) (double) (point3D.getY()), r.getRed() / 255., r.getGreen() / 255., r.getBlue() / 255.));
                }
            }
            ImageIO.write(o.normalize(0.0, 1.0).getImage(), "jpg", out);
            return true;
        } catch (
                IOException e) {
            e.printStackTrace();
            return false;
        }

    }

    private boolean neighborhood(Point3D p1, Point3D p2) {
        return Point3D.distance(p1, p2) < 1.5;
    }

    public double getDistMax() {
        return distMax;
    }

    public void setDistMax(double distMax) {
        this.distMax = distMax;
    }

}