void drawCrosses() {
GeneralPath path = new GeneralPath();
float arm = 5;
for (int h = 0; h < linesV; h++) {
for (int v = 0; v < linesH; v++) {
float x = (float) (xstart + h * tileWidth);
float y = (float) (ystart + v * tileHeight);
path.moveTo(x - arm, y);
path.lineTo(x + arm, y);
path.moveTo(x, y - arm);
path.lineTo(x, y + arm);
}
}
showGrid(path);
}
void drawLines() {
GeneralPath path = new GeneralPath();
int width = imp.getWidth();
int height = imp.getHeight();
for (int i = 0; i < linesV; i++) {
float xoff = (float) (xstart + i * tileWidth);
path.moveTo(xoff, 0f);
path.lineTo(xoff, height);
}
for (int i = 0; i < linesH; i++) {
float yoff = (float) (ystart + i * tileHeight);
path.moveTo(0f, yoff);
path.lineTo(width, yoff);
}
showGrid(path);
}
void drawGridLines(int lines) {
ImageCanvas ic = imp.getCanvas();
if (ic == null) return;
if (lines == 0) {
ic.setDisplayList(null);
return;
}
GeneralPath path = new GeneralPath();
float width = imp.getWidth();
float height = imp.getHeight();
float xinc = width / lines;
float yinc = height / lines;
float xstart = xinc / 2f;
float ystart = yinc / 2f;
for (int i = 0; i < lines; i++) {
path.moveTo(xstart + xinc * i, 0f);
path.lineTo(xstart + xinc * i, height);
path.moveTo(0f, ystart + yinc * i);
path.lineTo(width, ystart + yinc * i);
}
ic.setDisplayList(path, null, null);
}
void drawPoints() {
int one = 1;
int two = 2;
GeneralPath path = new GeneralPath();
for (int h = 0; h < linesV; h++) {
for (int v = 0; v < linesH; v++) {
float x = (float) (xstart + h * tileWidth);
float y = (float) (ystart + v * tileHeight);
path.moveTo(x - two, y - one);
path.lineTo(x - two, y + one);
path.moveTo(x + two, y - one);
path.lineTo(x + two, y + one);
path.moveTo(x - one, y - two);
path.lineTo(x + one, y - two);
path.moveTo(x - one, y + two);
path.lineTo(x + one, y + two);
}
}
showGrid(path);
}
private void drawSpline(
Graphics g,
float[] xpoints,
float[] ypoints,
int npoints,
boolean closed,
boolean fill,
boolean isActiveOverlayRoi) {
double srcx = 0.0, srcy = 0.9, mag = 1.0;
if (ic != null) {
Rectangle srcRect = ic.getSrcRect();
srcx = srcRect.x;
srcy = srcRect.y;
mag = ic.getMagnification();
}
double xd = x, yd = y;
Graphics2D g2d = (Graphics2D) g;
GeneralPath path = new GeneralPath();
double offset = getOffset(0.5);
if (mag == 1.0 && srcx == 0.0 && srcy == 0.0) {
path.moveTo(xpoints[0] + xd, ypoints[0] + yd);
for (int i = 1; i < npoints; i++) path.lineTo(xpoints[i] + xd, ypoints[i] + yd);
} else {
path.moveTo((xpoints[0] - srcx + xd) * mag + offset, (ypoints[0] - srcy + yd + offset) * mag);
for (int i = 1; i < npoints; i++)
path.lineTo(
(xpoints[i] - srcx + xd + offset) * mag, (ypoints[i] - srcy + yd + offset) * mag);
}
if (closed)
path.lineTo((xpoints[0] - srcx + xd + offset) * mag, (ypoints[0] - srcy + yd + offset) * mag);
if (fill) {
if (isActiveOverlayRoi) {
g2d.setColor(Color.cyan);
g2d.draw(path);
} else g2d.fill(path);
} else g2d.draw(path);
}