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3D rendering engine. Plus modeling. Expected glsl textures 3d and 2d rendering
/*
* 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.ColorTexture;
import one.empty3.library.LineSegment;
import one.empty3.library.Point3D;
import one.empty3.library.core.lighting.Colors;
import one.empty3.library.core.nurbs.CourbeParametriquePolynomialeBezier;
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.Arrays;
import java.util.List;
import java.util.Random;
import java.util.function.Consumer;
public class Lines5colors extends ProcessFile {
ArrayList listTmpCurve = new ArrayList<>();
ArrayList listTmpX = new ArrayList<>();
ArrayList listTmpY = new ArrayList<>();
ArrayList listTmpZ = new ArrayList<>();
private PixM pixM;
private double pz;
private double py;
private double px;
private double distMax;
private Random random = new Random();
public Lines5colors() {
}
public List relierPoints(List> points, Point3D p0) {
List list = new ArrayList<>();
List p = points.get(0);
for (int i = 0; i < p.size(); i++) {
Point3D proche = proche(p0, p);
if (proche == null)
return list;
else {
p.remove(proche);
list.add(proche);
}
}
return list;
}
private Point3D proche(Point3D point3D, List p) {
double dist = distMax;
Point3D pRes = null;
for (Point3D p2 : p) {
if (Point3D.distance(point3D, p2) < dist && p2 != point3D && !p2.equals(point3D)) {
dist = Point3D.distance(point3D, p2);
pRes = p2;
}
}
return pRes;
}
public double r() {
return (random.doubles().iterator().nextDouble() + 1.) / 2;
}
@Override
public boolean process(File in, File out) {
listTmpCurve = new ArrayList<>();
listTmpX = new ArrayList<>();
listTmpY = new ArrayList<>();
listTmpZ = new ArrayList<>();
try {
pixM = null;
pixM = new PixM(ImageIO.read(in));
ArrayList> lists = new ArrayList<>();
lists.add(new ArrayList<>());
PixM o = new PixM(pixM.getColumns(), pixM.getLines());
double valueDiff = 0.1;
for (double levels : Arrays.asList(1.0, 0.8, 0.6, 0.4, 0.3, 0.2/*,0.1,0.0*/)) {
int[][] p = new int[pixM.getColumns()][pixM.getLines()];//!!
pz = 0.0;
py = 0.0;
px = 0.0;
distMax = (pixM.getColumns() + pixM.getLines()) / 2;//???
random = new Random();
listTmpCurve = new ArrayList();
listTmpX = new ArrayList();
listTmpY = new ArrayList();
listTmpZ = new ArrayList();
for (int x = 0; x < pixM.getColumns(); x++)
for (int y = 0; y < pixM.getLines(); y++)
p[x][y] = 0;
for (int i = 0; i < pixM.getColumns(); i++) {
for (int j = 0; j < pixM.getLines(); j++) {
int x = i;
int y = j;
if (!isInBound(new Point3D((double) x, (double) y, 0.0)))
continue;
double valueAvg = pixM.luminance(x, y);
if (p[x][y] == 0) {
listTmpCurve.add(new Point3D((double) x, (double) y, valueAvg));
} else {
continue;
}
int cont = 1;
while (valueAvg >= levels - valueDiff && valueAvg <= levels + valueDiff && cont == 1 && p[x][y] == 0) {//2nd condition
p[x][y] = 1;
neighborhood((int) (double) x, (int) (double) y, valueAvg, valueDiff, levels);
//
while (listTmpX.size() > 0) {
getTmp(0);
x = (int) px;
y = (int) py;
removeTmp(0);
if (!isInBound(new Point3D(px, py, 0.0)))
break;
if (p[x][y] == 0) {
listTmpCurve.add(new Point3D((double) x, (double) y, levels));
cont = 1;
valueAvg = pixM.luminance(x, y);
} else cont = 0;
}
}
/*
for (List ps : lists)
for (int k = 0; k < ps.size(); k++) {
Point3D p0 = ps.get(k);
for (int c = 0; c < listTmpCurve.size(); c++)
if (listTmpCurve.get(c).equals(p0) &&
lists.get(0).contains(p0)) {
Point3D p1 = listTmpCurve.get(c);
if (isInBound(p1))
p[(int) (double) p1.getX()]
[(int) (double) p1.getY()] = 1;
//listTmpCurve.remove(c);
lists.get(0).remove(p0);
}
}*/
if (listTmpCurve.size() == 1)
lists.get(0).add(listTmpCurve.get(0));
else if (listTmpCurve.size() > 1 && !lists.contains(listTmpCurve)) {
lists.add(listTmpCurve);
//listTmpCurve = new ArrayList<>();//!!
}
}
}
}
List> lists2 = new ArrayList<>();
int index3 = 0;
while (index3 < lists.size() && lists.get(index3).size() == 0)
index3++;
if (index3 < lists.size() && lists.get(index3).size() > 0) {
List point3DS = relierPoints(lists, lists.get(index3).get(0));
int index = 0;
do {
if (point3DS != null) {
index++;
lists2.add(point3DS);
}
while (index3 < lists.size() && lists.get(index3).size() == 0)
index3++;
if (index3 < lists.size()) {
point3DS = relierPoints(lists, lists.get(index3).get(index));
}
} while (index3 < lists.size() && point3DS != null && point3DS.size() > 0 && index < lists.get(0).size() - 1);
}
List lines = new ArrayList<>();
List> list3 = new ArrayList<>();
for (List listP : lists2) {
int i = 0;
int a = 0;
int b = listP.size() - 1;
list3.add(new ArrayList<>());
if (listP.size() > 0) {
boolean passed = false;
list3.get(list3.size() - 1).add(listP.get(0));
for (Point3D point3D : listP) {
Double distNormal = 1.0;//0.9??
if (isInBound(point3D)) {
int j = 0;
for (j = 1; j < listP.size(); j++) {
if (Point3D.distance(point3D, listP.get(j)) >= distNormal) {
distNormal = Point3D.distance(point3D, listP.get(j));
list3.get(list3.size() - 1).add(listP.get(j));
} //j--;break;
}
if (j == listP.size()) {
break;
}
a = j - 1;
int k;
for (k = 0; k >= -listP.size(); k--) {
if (Point3D.distance(point3D, listP.get((listP.size() + k) % listP.size())) >= distNormal) {
distNormal = Point3D.distance(point3D, listP.get((listP.size() + k) % listP.size()));
list3.get(list3.size() - 1).add(listP.get((listP.size() + k) % listP.size()));
}
}
if (k == -listP.size()) {
break;
}
b = (k + 1 + listP.size()) % listP.size();
passed = true;
}
}
if (list3.get(list3.size() - 1).size() >= 2 && passed) {
Point3D p1 = list3.get(list3.size() - 1).get(a);
Point3D p2 = list3.get(list3.size() - 1).get(b);
list3.remove(list3.size() - 1);
list3.add(new ArrayList<>());
list3.get(list3.size() - 1).add(p1);
list3.get(list3.size() - 1).add(p2);
}
}
}
List coefficients = new ArrayList<>();
lists2.forEach(p3s -> {
Color r = new Color((float) r(), (float) r(), (float) r());
double xA;
double yA;
p3s.forEach(point3D -> {
if (isInBound(point3D)) {
o.setValues((int) (double) (point3D.getX()), (int) (double) (point3D.getY()), r.getRed() / 255., r.getGreen() / 255., r.getBlue() / 255.);
}
});
});
PixM img3 = new PixM(pixM.getColumns(), pixM.getLines());
list3.forEach(p3s -> {
Color r = new Color((float) r(), (float) r(), (float) r());
double xA;
double yA;
/*p3s.forEach(point3D -> {
if (isInBound(point3D)) {
img3.setValues((int) (double) (point3D.getX()), (int) (double) (point3D.getY()), r.getRed() / 255., r.getGreen() / 255., r.getBlue() / 255.);
}
});*/
});
list3.forEach(p3s -> {
Color r = new Color((float) r(), (float) r(), (float) r());
if (p3s.size() > 2) {
for (int j = 0; j < p3s.size() - 1; j++) {
Point3D p1 = p3s.get(j);
Point3D p2 = p3s.get(j + 1);
double length = p1.moins(p2).norme();
for (double i = 0; i < 1.0; i += 1. / length) {
Point3D point3D = p1.plus(p2.moins(p1).mult(i));
img3.setValues((int) (double) (point3D.getX()), (int) (double) (point3D.getY()),
p1.getZ(), p1.getZ(), p1.getZ()
/* r.getRed() / 255., r.getGreen() / 255., r.getBlue() / 255.*/
);
}
}
}
});
List> points = new ArrayList<>();
CourbeParametriquePolynomialeBezier[] courbeParametriquePolynomialeBeziers = new CourbeParametriquePolynomialeBezier[lists2.size()];
int[] i = new int[]{0};
lists2.forEach(p3s -> {
Color r = new Color((float) r(), (float) r(), (float) r());
final Point3D[][] extremes = {new Point3D[2], new Point3D[2]};
final Double[] distMaxMinP1 = {2.5, 1000.0};
List pointsCurrent = new ArrayList<>();
points.add(pointsCurrent);
p3s.forEach(point3D1 -> {
Point3D p1 = point3D1;
p3s.forEach(point3D2 -> {
Point3D p2 = point3D2;
if (Point3D.distance(p1, p2) >= distMaxMinP1[0] && isInBound(p1) && isInBound(p2)) {
extremes[0][0] = p1;
extremes[0][1] = p2;
distMaxMinP1[0] = Point3D.distance(p1, p2);
}
if (Point3D.distance(p1, p2) <= distMaxMinP1[1] && isInBound(p1) && isInBound(p2)) {
extremes[1][0] = p1;
extremes[1][1] = p2;
distMaxMinP1[1] = Point3D.distance(p1, p2);
pointsCurrent.add(p2);
}
});
});
if (extremes[0][0] != null && extremes[0][1] != null && isInBound(extremes[0][0]) && isInBound(extremes[0][1])) {
lines.add(new LineSegment(extremes[0][0], extremes[0][1], new ColorTexture(r)));
}
// Calculer le segment AB qui approxime un maximum de points dans l'ensemble
/*b = (yB − yA)/(xB − xA); a = (yA − bxA). :?yA = yMoyen, xA = xMoyen*/
// Recouper les lignes par db min max
/*CourbeParametriquePolynomialeBezier parametricCurve = new CourbeParametriquePolynomialeBezier();
p3s.forEach(point3D -> parametricCurve.getCoefficients().getData1d().add(point3D));
courbeParametriquePolynomialeBeziers[i[0]++] = parametricCurve;
*/
if (pointsCurrent.size() > 2)
lines.add(new LineSegment(extremes[1][0], extremes[1][1], new ColorTexture(r)));
});
BufferedImage bLines = new BufferedImage(o.getColumns(), o.getLines(), BufferedImage.TYPE_INT_RGB);
Graphics g = bLines.getGraphics();
for (LineSegment line : lines) {
g.setColor(Colors.random());
if (line.getLength() >= 2) {
/*for (double c = 0.0; c <= 1.0; c += 1 / line.getLength()) {
Point3D pDraw = line.getOrigine().plus(
line.getOrigine().plus(line.getExtremite().moins(line.getOrigine().mult(c))));
int x = (int) (double) pDraw.getX();
int y = (int) (double) pDraw.getY();
if (isInBound(pDraw))
bLines.setRGB(x, y, line.texture().getColorAt(0, 0));
}*/
Point3D pDraw1 = line.getOrigine().plus(
line.getOrigine().plus(line.getExtremite().moins(line.getOrigine().mult(0.0))));
Point3D pDraw2 = line.getOrigine().plus(
line.getOrigine().plus(line.getExtremite().moins(line.getOrigine().mult(1.0))));
int x1 = (int) (double) pDraw1.getX();
int y1 = (int) (double) pDraw1.getY();
int x2 = (int) (double) pDraw2.getX();
int y2 = (int) (double) pDraw2.getY();
if (isInBound(pDraw1) && isInBound(pDraw2)) {
g.drawLine(x1, y1, x2, y2);
}
}
}
// BufferedImage linesImg2 = new BufferedImage(o.getColumns(), o.getLines(), BufferedImage.TYPE_INT_RGB);
//
//
// coefficients.forEach(doubles -> {
// double a = doubles[0];
// double b = doubles[1];
// // y = ax+b
// Point p1 = new Point(0, (int) b);
// Point p2 = new Point((int) (-b / a), 0);
// Graphics g2 = linesImg2.getGraphics();
// g2.setColor(Colors.random());
// g2.drawLine((int) p1.getX(), (int) p1.getY(), (int) p2.getX(), (int) p2.getY());
// });
points.forEach(new Consumer>() {
@Override
public void accept(List point3DS) {
}
});
ImageIO.write(o.normalize(0.0, 1.0).getImage(), "jpg", new File(out.getAbsolutePath() + "-dotted.jpg"));
//ImageIO.write(bLines, "jpg",
// new File(out.getAbsolutePath() + "-blines.jpg"));
// ImageIO.write(linesImg2, "jpg",
// new File(out.getAbsolutePath() + "-lines-yAxB.jpg"));
ImageIO.write(img3.normalize(0.0, 1.0).getImage(), "jpg",
new File(out.getAbsolutePath()));
return true;
} catch (
IOException e) {
e.printStackTrace();
return false;
}
}
private boolean isInBound(Point3D p1) {
return p1.get(0) >= 0 && p1.get(0) < pixM.getColumns() && p1.get(1) >= 0 && p1.get(1) < pixM.getLines();
}
public void addTmp(double x, double y, double z) {
listTmpX.add(x);
listTmpY.add(y);
listTmpZ.add(z);
}
public void removeTmp(int i) {
listTmpX.remove(i);
listTmpY.remove(i);
listTmpZ.remove(i);
}
public void getTmp(int i) {
px = listTmpX.get(i);
py = listTmpY.get(i);
pz = listTmpZ.get(i);
}
private void neighborhood(int i, int j, double valueAvg, double valueDiff, double valueMin) {
listTmpX.clear();
listTmpY.clear();
listTmpZ.clear();
listTmpCurve.clear();
for (int x = 0; x < 3; x++) {
for (int y = 0; y < 3; y++) {
int x2 = i + (x - 1);
int y2 = j + (y - 1);
if (x2 != i && y2 != j) {
Point point = new Point(x2, y2);
px = point.getX();
py = point.getY();
pz = pixM.luminance((int) point.getX(), (int) point.getY());
if (pz >= valueAvg - valueDiff && pz <= valueAvg + valueDiff && pz > valueMin
&& px >= 0.0 && px < pixM.getColumns() && py >= 0 && py < pixM.getLines()) {
addTmp(px, py, pz);
break;
}
}
}
}
}
public double getDistMax() {
return distMax;
}
public void setDistMax(double distMax) {
this.distMax = distMax;
}
}