public BufferedImage filter(BufferedImage src, BufferedImage dst) {
if (dst == null) dst = createCompatibleDestImage(src, null);
int width = src.getWidth();
int height = src.getHeight();
int numScratches = (int) (density * width * height / 100);
ArrayList<Line2D> lines = new ArrayList<Line2D>();
{
float l = length * width;
Random random = new Random(seed);
Graphics2D g = dst.createGraphics();
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setColor(new Color(color));
g.setStroke(new BasicStroke(this.width));
for (int i = 0; i < numScratches; i++) {
float x = width * random.nextFloat();
float y = height * random.nextFloat();
float a = angle + ImageMath.TWO_PI * (angleVariation * (random.nextFloat() - 0.5f));
float s = (float) Math.sin(a) * l;
float c = (float) Math.cos(a) * l;
float x1 = x - c;
float y1 = y - s;
float x2 = x + c;
float y2 = y + s;
g.drawLine((int) x1, (int) y1, (int) x2, (int) y2);
lines.add(new Line2D.Float(x1, y1, x2, y2));
}
g.dispose();
}
if (false) {
// int[] inPixels = getRGB( src, 0, 0, width, height, null );
int[] inPixels = new int[width * height];
int index = 0;
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
float sx = x, sy = y;
for (int i = 0; i < numScratches; i++) {
Line2D.Float l = (Line2D.Float) lines.get(i);
float dot = (l.x2 - l.x1) * (sx - l.x1) + (l.y2 - l.y1) * (sy - l.y1);
if (dot > 0) inPixels[index] |= (1 << i);
}
index++;
}
}
Colormap colormap = new LinearColormap();
index = 0;
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
float f = (float) (inPixels[index] & 0x7fffffff) / 0x7fffffff;
inPixels[index] = colormap.getColor(f);
index++;
}
}
setRGB(dst, 0, 0, width, height, inPixels);
}
return dst;
}
public void randomize() {
seed = new Date().getTime();
randomGenerator.setSeed(seed);
a = randomGenerator.nextFloat();
b = randomGenerator.nextFloat();
c = randomGenerator.nextFloat();
d = randomGenerator.nextFloat();
k = randomGenerator.nextInt() % 20 - 10;
}
private int displace(int rgb, float amount) {
int r = (rgb >> 16) & 0xff;
int g = (rgb >> 8) & 0xff;
int b = rgb & 0xff;
r = PixelUtils.clamp(r + (int) (amount * (randomGenerator.nextFloat() - 0.5)));
g = PixelUtils.clamp(g + (int) (amount * (randomGenerator.nextFloat() - 0.5)));
b = PixelUtils.clamp(b + (int) (amount * (randomGenerator.nextFloat() - 0.5)));
return 0xff000000 | (r << 16) | (g << 8) | b;
}
private int randomRGB(int[] inPixels, int x, int y) {
if (useImageColors) {
return inPixels[y * originalSpace.width + x];
} else {
int r = (int) (255 * randomGenerator.nextFloat());
int g = (int) (255 * randomGenerator.nextFloat());
int b = (int) (255 * randomGenerator.nextFloat());
return 0xff000000 | (r << 16) | (g << 8) | b;
}
}
public void setRandom(Random random)
/* Sets all the scalars in 'this' to random values uniformly distributed
* over (0.0, 1.0) using the pseudo-random generator 'random'. */
{
// setZero();
for (int k = 0; k < size; ++k) f[k] = random.nextFloat();
}
public ScalarImage(int width, int height, Random random)
/* Constructs a new ScalarImage = < width, height, zero-buffer > */
{
this.width = width;
this.height = height;
size = width * height;
f = new float[size];
offset = new int[height];
for (int j = 0; j < height; ++j) offset[j] = width * j;
for (int k = 0; k < size; ++k) f[k] = random.nextFloat();
}
/*======== public void drawPolygons() ==========
Inputs: EdgeMatrix pm
Color c
Returns:
Go through the point matrix as if it were a polygon matrix
Call drawline in batches of 3s to create triangles.
04/16/12 22:05:02
jdyrlandweaver
====================*/
public void drawPolygons(EdgeMatrix pm, Color c) {
Random rndm = new Random();
Color rndmColor;
float r, g, b;
if (pm.getLastCol() < 3) return;
for (int i = 0; i < pm.getLastCol() - 2; i += 3) {
if (pm.calculateDot(i) > 0) {
r = rndm.nextFloat();
g = rndm.nextFloat();
b = rndm.nextFloat();
rndmColor = new Color(r, g, b);
scanLine(pm, i, rndmColor);
}
}
}
public DMoteModel(int id, Random rand, DDocument root) {
this.root = root;
this.id = id;
x = 20 + rand.nextInt(root.canvas.getWidth() - 20);
y = 20 + rand.nextInt(root.canvas.getHeight() - 20);
values = new float[root.sensed_motes.size()];
colors = new Color[root.sensed_motes.size()];
sizes = new int[root.sensed_motes.size()];
for (int i = 0; i < root.sensed_motes.size(); i++) {
values[i] = rand.nextFloat() * 1000;
colors[i] = setColor(values[i]);
sizes[i] = setShapeSize(values[i]);
}
listeners = null;
}
private float checkCube(float x, float y, int cubeX, int cubeY, Point[] results) {
int numPoints;
random.setSeed(571 * cubeX + 23 * cubeY);
switch (gridType) {
case RANDOM:
default:
numPoints = probabilities[random.nextInt() & 0x1fff];
break;
case SQUARE:
numPoints = 1;
break;
case HEXAGONAL:
numPoints = 1;
break;
case OCTAGONAL:
numPoints = 2;
break;
case TRIANGULAR:
numPoints = 2;
break;
}
for (int i = 0; i < numPoints; i++) {
float px = 0, py = 0;
float weight = 1.0f;
switch (gridType) {
case RANDOM:
px = random.nextFloat();
py = random.nextFloat();
break;
case SQUARE:
px = py = 0.5f;
if (randomness != 0) {
px += randomness * (random.nextFloat() - 0.5);
py += randomness * (random.nextFloat() - 0.5);
}
break;
case HEXAGONAL:
if ((cubeX & 1) == 0) {
px = 0.75f;
py = 0;
} else {
px = 0.75f;
py = 0.5f;
}
if (randomness != 0) {
px += randomness * Noise.noise2(271 * (cubeX + px), 271 * (cubeY + py));
py += randomness * Noise.noise2(271 * (cubeX + px) + 89, 271 * (cubeY + py) + 137);
}
break;
case OCTAGONAL:
switch (i) {
case 0:
px = 0.207f;
py = 0.207f;
break;
case 1:
px = 0.707f;
py = 0.707f;
weight = 1.6f;
break;
}
if (randomness != 0) {
px += randomness * Noise.noise2(271 * (cubeX + px), 271 * (cubeY + py));
py += randomness * Noise.noise2(271 * (cubeX + px) + 89, 271 * (cubeY + py) + 137);
}
break;
case TRIANGULAR:
if ((cubeY & 1) == 0) {
if (i == 0) {
px = 0.25f;
py = 0.35f;
} else {
px = 0.75f;
py = 0.65f;
}
} else {
if (i == 0) {
px = 0.75f;
py = 0.35f;
} else {
px = 0.25f;
py = 0.65f;
}
}
if (randomness != 0) {
px += randomness * Noise.noise2(271 * (cubeX + px), 271 * (cubeY + py));
py += randomness * Noise.noise2(271 * (cubeX + px) + 89, 271 * (cubeY + py) + 137);
}
break;
}
float dx = (float) Math.abs(x - px);
float dy = (float) Math.abs(y - py);
float d;
dx *= weight;
dy *= weight;
if (distancePower == 1.0f) d = dx + dy;
else if (distancePower == 2.0f) d = (float) Math.sqrt(dx * dx + dy * dy);
else
d =
(float)
Math.pow(
(float) Math.pow(dx, distancePower) + (float) Math.pow(dy, distancePower),
1 / distancePower);
// Insertion sort the long way round to speed it up a bit
if (d < results[0].distance) {
Point p = results[2];
results[2] = results[1];
results[1] = results[0];
results[0] = p;
p.distance = d;
p.dx = dx;
p.dy = dy;
p.x = cubeX + px;
p.y = cubeY + py;
} else if (d < results[1].distance) {
Point p = results[2];
results[2] = results[1];
results[1] = p;
p.distance = d;
p.dx = dx;
p.dy = dy;
p.x = cubeX + px;
p.y = cubeY + py;
} else if (d < results[2].distance) {
Point p = results[2];
p.distance = d;
p.dx = dx;
p.dy = dy;
p.x = cubeX + px;
p.y = cubeY + py;
}
}
return results[2].distance;
}
