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more image processing hacks

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This commit is contained in:
Michael Peter Christen 2012-10-25 18:20:05 +02:00
parent f2d0418218
commit 55bdafbaf1
3 changed files with 15 additions and 23 deletions
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8
source/net/yacy/visualization/CircleTool.java
View File

@ -62,15 +62,15 @@ public class CircleTool {
r1 = (short) (r + 1);
crc = new ArrayList<short[]>();
for (short a = 0; a < 2 * (r + 1); a++) {
x = (short) (r1 * Math.cos(Math.PI * a / (4 * r1)));
y = (short) (r1 * Math.sin(Math.PI * a / (4 * r1)));
x = (short) (r1 * Math.cos(RasterPlotter.PI4 * a / r1));
y = (short) (r1 * Math.sin(RasterPlotter.PI4 * a / r1));
co = x + "|" + y;
if (!(crds.contains(co))) {
crc.add(new short[]{x, y});
crds.add(co);
}
x = (short) ((r + 0.5) * Math.cos(Math.PI * a / (4 * r1)));
y = (short) ((r + 0.5) * Math.sin(Math.PI * a / (4 * r1)));
x = (short) ((r + 0.5) * Math.cos(RasterPlotter.PI4 * a / r1));
y = (short) ((r + 0.5) * Math.sin(RasterPlotter.PI4 * a / r1));
co = x + "|" + y;
if (!(crds.contains(co))) {
crc.add(new short[]{x, y});

11
source/net/yacy/visualization/GraphPlotter.java
View File

@ -103,9 +103,6 @@ public class GraphPlotter implements Cloneable {
}
}
private final static double p2 = Math.PI / 2.0;
private final static double p23 = p2 * 3.0;
public static void force(Point calcPoint, Point currentPoint, Point otherPoint, Ribbon r) {
double dx = otherPoint.x - currentPoint.x;
double dy = otherPoint.y - currentPoint.y;
@ -121,10 +118,10 @@ public class GraphPlotter implements Cloneable {
assert !(!attraction && a < Math.PI) || y1 <= 0 : "attraction = " + attraction + ", a = " + a + ", y1 = " + y1;
assert !(attraction && a > Math.PI) || y1 <= 0 : "attraction = " + attraction + ", a = " + a + ", y1 = " + y1;
assert !(!attraction && a > Math.PI) || y1 >= 0 : "attraction = " + attraction + ", a = " + a + ", y1 = " + y1;
assert !(attraction && (a < p2 || a > p23)) || x1 >= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
assert !(!attraction && (a < p2 || a > p23)) || x1 <= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
assert !(attraction && !(a < p2 || a > p23)) || x1 <= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
assert !(!attraction && !(a < p2 || a > p23)) || x1 >= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
assert !(attraction && (a < RasterPlotter.PI2 || a > RasterPlotter.PI32)) || x1 >= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
assert !(!attraction && (a < RasterPlotter.PI2 || a > RasterPlotter.PI32)) || x1 <= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
assert !(attraction && !(a < RasterPlotter.PI2 || a > RasterPlotter.PI32)) || x1 <= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
assert !(!attraction && !(a < RasterPlotter.PI2 || a > RasterPlotter.PI32)) || x1 >= 0 : "attraction = " + attraction + ", a = " + a + ", x1 = " + x1;
calcPoint.x += x1;
calcPoint.y += y1;
}

19
source/net/yacy/visualization/RasterPlotter.java
View File

@ -4,10 +4,6 @@
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
@ -46,7 +42,6 @@ import java.awt.image.DataBufferByte;
import java.awt.image.Raster;
import java.awt.image.WritableRaster;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
@ -66,6 +61,10 @@ public class RasterPlotter {
public final Log log = new Log("RasterPlotter");
public static final double PI180 = Math.PI / 180.0d;
public static final double PI4 = Math.PI / 4.0d;
public static final double PI2 = Math.PI / 2.0d;
public static final double PI32 = PI2 * 3.0d;
public static final double TL = Math.sqrt(3) / 2;
// colors regarding RGB Color Model
public static final long RED = 0xFF0000;
@ -380,9 +379,6 @@ public class RasterPlotter {
line(x2, y2, xt, yt, 100); // left line
line(x3, y3, xt, yt, 100); // right line
}
private final static double TL = Math.sqrt(3) / 2;
private final static double PI2 = Math.PI / 2;
public int[] getColor(final int x, final int y) {
final int[] c = new int[3];
@ -836,10 +832,9 @@ public class RasterPlotter {
int i = 0;
for (int row = 0; row < height; row++) {
compBytes.write(0);
for (int column = 0; column < width; column++) {
compBytes.write(frame, i, 3); // this replaces the whole PixelGrabber process which makes it probably more than 800x faster. See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4835595
i += 3;
}
// this replaces the whole PixelGrabber process which makes it probably more than 800x faster. See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4835595
compBytes.write(frame, i, 3 * width);
i += 3 * width;
}
compBytes.close();