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323 lines
12 KiB
323 lines
12 KiB
// ymageMatrix.java
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// (C) 2005 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 16.09.2005 on http://yacy.net
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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/*
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This Class implements some convenience-methods to support drawing of statistical Data
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It is not intended to replace existing awt-funktions even if it looks so
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This class provides some drawing methods that creates transparency effects that
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are not available in awt.
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*/
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package de.anomic.ymage;
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import java.awt.Color;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.awt.image.WritableRaster;
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import javax.imageio.ImageIO;
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import de.anomic.server.serverMemory;
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public class ymageMatrix /*implements Cloneable*/ {
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// colors regarding CMY Color Model
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public static final long SUBTRACTIVE_CYAN = 0xFF0000;
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public static final long SUBTRACTIVE_MAGENTA = 0x00FF00;
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public static final long SUBTRACTIVE_YELLOW = 0x0000FF;
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public static final long SUBTRACTIVE_BLACK = 0xFFFFFF;
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public static final long SUBTRACTIVE_WHITE = 0x000000;
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public static final long SUBTRACTIVE_RED = 0x007F7F;
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public static final long SUBTRACTIVE_GREEN = 0x7F007F;
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public static final long SUBTRACTIVE_BLUE = 0x7F7F00;
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public static final byte MODE_REPLACE = 0;
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public static final byte MODE_SUB = 2;
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protected int width, height;
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private BufferedImage image;
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private WritableRaster grid;
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private int[] defaultCol;
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private byte defaultMode;
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/*
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public ymageMatrix(ymageMatrix matrix) throws RuntimeException {
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if (!(serverMemory.available(1024 * 1024 + 3 * width * height, true))) throw new RuntimeException("ymage: not enough memory (" + serverMemory.available() + ") available");
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// clones the matrix
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this.width = matrix.width;
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this.height = matrix.height;
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this.defaultColR = matrix.defaultColR;
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this.defaultColG = matrix.defaultColG;
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this.defaultColB = matrix.defaultColB;
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this.defaultMode = matrix.defaultMode;
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this.grid = (WritableRaster) matrix.grid.
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System.arraycopy(matrix.grid, 0, this.grid, 0, matrix.grid.length);
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}
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*/
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public ymageMatrix(int width, int height, String backgroundColor) {
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this(width, height, colNum(backgroundColor));
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}
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public ymageMatrix(int width, int height, long backgroundColor) {
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if (!(serverMemory.request(1024 * 1024 + 3 * width * height, false))) throw new RuntimeException("ymage: not enough memory (" + serverMemory.available() + ") available");
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this.width = width;
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this.height = height;
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this.defaultCol = new int[]{0xFF, 0xFF, 0xFF};
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this.defaultMode = MODE_REPLACE;
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image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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Graphics2D gr = image.createGraphics();
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gr.setBackground(Color.white);
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//gr.clearRect(0, 0, width, height);
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grid = image.getRaster();
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//if (backgroundColor != SUBTRACTIVE_WHITE) {
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// fill grid with background color
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byte bgR = (byte) (0xFF - (backgroundColor >> 16));
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byte bgG = (byte) (0xFF - ((backgroundColor >> 8) & 0xff));
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byte bgB = (byte) (0xFF - (backgroundColor & 0xff));
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int[] c = new int[]{bgR, bgG, bgB};
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for (int i = 0; i < width; i++) {
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for (int j = 0; j < height; j++) {
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grid.setPixel(i, j, c);
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}
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}
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//}
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}
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public BufferedImage getImage() {
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return this.image;
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}
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private static long colNum(String col) {
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return Long.parseLong(col, 16);
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//return Integer.parseInt(col.substring(0,2), 16) << 16 | Integer.parseInt(col.substring(2,4), 16) << 8 | Integer.parseInt(col.substring(4,6), 16);
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}
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/*
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public Object clone() {
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return new ymageMatrix(this);
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}
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*/
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public int getWidth() {
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return width;
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}
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public int getHeight() {
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return height;
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}
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public void setColor(long c) {
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defaultCol[0] = (int) (c >> 16);
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defaultCol[1] = (int) ((c >> 8) & 0xff);
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defaultCol[2] = (int) (c & 0xff);
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}
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public void setColor(String s) {
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setColor(colNum(s));
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}
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public void setMode(byte m) {
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this.defaultMode = m;
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}
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public void plot(int x, int y) {
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if ((x < 0) || (x >= width)) return;
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if ((y < 0) || (y >= height)) return;
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//int n = 3 * (x + y * width);
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if (this.defaultMode == MODE_REPLACE) {
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grid.setPixel(x, y, defaultCol);
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} else if (this.defaultMode == MODE_SUB) {
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int[] c = new int[3];
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c = grid.getPixel(x, y, c);
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int r = (0xff & c[0]) - defaultCol[0]; if (r < 0) r = 0;
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int g = (0xff & c[1]) - defaultCol[1]; if (g < 0) g = 0;
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int b = (0xff & c[2]) - defaultCol[2]; if (b < 0) b = 0;
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grid.setPixel(x, y, new int[]{r, g, b});
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}
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}
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public void line(int Ax, int Ay, int Bx, int By) {
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// Bresenham's line drawing algorithm
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int dX = Math.abs(Bx-Ax);
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int dY = Math.abs(By-Ay);
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int Xincr, Yincr;
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if (Ax > Bx) Xincr=-1; else Xincr=1;
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if (Ay > By) Yincr=-1; else Yincr=1;
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if (dX >= dY) {
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int dPr = dY<<1;
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int dPru = dPr - (dX<<1);
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int P = dPr - dX;
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for (; dX>=0; dX--) {
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plot(Ax, Ay);
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if (P > 0) {
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Ax+=Xincr;
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Ay+=Yincr;
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P+=dPru;
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} else {
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Ax+=Xincr;
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P+=dPr;
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}
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}
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} else {
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int dPr = dX<<1;
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int dPru = dPr - (dY<<1);
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int P = dPr - dY;
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for (; dY>=0; dY--) {
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plot(Ax, Ay);
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if (P > 0) {
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Ax+=Xincr;
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Ay+=Yincr;
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P+=dPru;
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} else {
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Ay+=Yincr;
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P+=dPr;
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}
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}
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}
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}
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public void lineDot(int x0, int y0, int x1, int y1, int radius, int distance, long lineColor, long dotColor) {
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// draw a line with a dot at the end.
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// the radius value is the radius of the dot
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// the distance value is the distance of the dot border to the endpoint
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// compute first the angle of the line between the points
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double angle = (x1 - x0 > 0) ? Math.atan(((double) (y0 - y1)) / ((double) (x1 - x0))) : Math.PI - Math.atan(((double) (y0 - y1)) / ((double) (x0 - x1)));
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// now find two more points in between
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// first calculate the radius' of the points
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double ra = Math.sqrt((double) ((x0 - x1) * (x0 - x1) + (y0 - y1) * (y0 - y1))); // from a known point x1, y1
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double rb = ra - radius - distance;
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double rc = rb - radius;
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//System.out.println("CONTROL angle = " + angle);
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//System.out.println("CONTROL x1 = " + x1 + ", x1calc = " + ((x0 + ((int) ra * Math.cos(angle)))));
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//System.out.println("CONTROL y1 = " + y1 + ", y1calc = " + ((y0 - ((int) ra * Math.sin(angle)))));
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// the points are on a circle with radius rb and rc
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int x2 = x0 + ((int) (rb * Math.cos(angle)));
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int y2 = y0 - ((int) (rb * Math.sin(angle)));
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int x3 = x0 + ((int) (rc * Math.cos(angle)));
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int y3 = y0 - ((int) (rc * Math.sin(angle)));
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setColor(lineColor);
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line(x0, y0, x3, y3);
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setColor(dotColor);
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dot(x2, y2, radius, true);
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}
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public int[] getColor(int x, int y) {
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int[] c = new int[3];
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return grid.getPixel(x, y, c);
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}
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public void dot(int x, int y, int radius, boolean filled) {
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if (filled) {
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for (int r = radius; r >= 0; r--) ymageToolCircle.circle(this, x, y, r);
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} else {
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ymageToolCircle.circle(this, x, y, radius);
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}
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}
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public void arc(int x, int y, int innerRadius, int outerRadius, int fromArc, int toArc) {
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for (int r = innerRadius; r <= outerRadius; r++) ymageToolCircle.circle(this, x, y, r, fromArc, toArc);
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}
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public void arcLine(int cx, int cy, int innerRadius, int outerRadius, int angle) {
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int xi = cx + (int) (innerRadius * Math.cos(Math.PI * angle / 180));
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int yi = cy - (int) (innerRadius * Math.sin(Math.PI * angle / 180));
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int xo = cx + (int) (outerRadius * Math.cos(Math.PI * angle / 180));
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int yo = cy - (int) (outerRadius * Math.sin(Math.PI * angle / 180));
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line(xi, yi, xo, yo);
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}
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public void arcDot(int cx, int cy, int arcRadius, int angle, int dotRadius) {
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int x = cx + (int) (arcRadius * Math.cos(Math.PI * angle / 180));
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int y = cy - (int) (arcRadius * Math.sin(Math.PI * angle / 180));
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dot(x, y, dotRadius, true);
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}
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public void arcArc(int cx, int cy, int arcRadius, int angle, int innerRadius, int outerRadius, int fromArc, int toArc) {
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int x = cx + (int) (arcRadius * Math.cos(Math.PI * angle / 180));
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int y = cy - (int) (arcRadius * Math.sin(Math.PI * angle / 180));
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arc(x, y, innerRadius, outerRadius, fromArc, toArc);
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}
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public static void demoPaint(ymageMatrix m) {
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m.setMode(MODE_SUB);
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m.setColor(SUBTRACTIVE_CYAN);
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m.line(0, 10, 100, 10); ymageToolPrint.print(m, 0, 5, 0, "Cyan", -1);
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m.line(50, 0, 50, 300);
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m.setColor(SUBTRACTIVE_MAGENTA);
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m.line(0, 30, 100, 30); ymageToolPrint.print(m, 0, 25, 0, "Magenta", -1);
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m.line(55, 0, 55, 300);
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m.setColor(SUBTRACTIVE_YELLOW);
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m.line(0, 50, 100, 50); ymageToolPrint.print(m, 0, 45, 0, "Yellow", -1);
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m.line(60, 0, 60, 300);
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m.setColor(SUBTRACTIVE_BLACK);
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m.line(0, 70, 100, 70); ymageToolPrint.print(m, 0, 65, 0, "Black", -1);
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m.line(65, 0, 65, 300);
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m.setColor(SUBTRACTIVE_RED);
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m.line(0, 90, 100, 90); ymageToolPrint.print(m, 0, 85, 0, "Red", -1);
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m.line(70, 0, 70, 300);
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m.setColor(SUBTRACTIVE_GREEN);
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m.line(0, 110, 100, 110); ymageToolPrint.print(m, 0, 105, 0, "Green", -1);
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m.line(75, 0, 75, 300);
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m.setColor(SUBTRACTIVE_BLUE);
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m.line(0, 130, 100, 130); ymageToolPrint.print(m, 0, 125, 0, "Blue", -1);
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m.line(80, 0, 80, 300);
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}
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public static void main(String[] args) {
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// go into headless awt mode
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System.setProperty("java.awt.headless", "true");
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ymageMatrix m = new ymageMatrix(200, 300, SUBTRACTIVE_WHITE);
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demoPaint(m);
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try {
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ImageIO.write(m.getImage(), "png", new java.io.File(args[0]));
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} catch (java.io.IOException e) {
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e.printStackTrace();
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}
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// open file automatically, works only on Mac OS X
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/*
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Process p = null;
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try {
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p = Runtime.getRuntime().exec(new String[] {"/usr/bin/osascript", "-e", "open \"" + args[0] + "\""});
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} catch (java.io.IOException e) {
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e.printStackTrace();
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}
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try {
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p.waitFor();
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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*/
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}
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}
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