void lineToArea(ImagePlus imp) {
Roi roi = imp.getRoi();
if (roi == null || !roi.isLine()) {
IJ.error("Line to Area", "Line selection required");
return;
}
Undo.setup(Undo.ROI, imp);
Roi roi2 = null;
if (roi.getType() == Roi.LINE) {
double width = roi.getStrokeWidth();
if (width <= 1.0) roi.setStrokeWidth(1.0000001);
FloatPolygon p = roi.getFloatPolygon();
roi.setStrokeWidth(width);
roi2 = new PolygonRoi(p, Roi.POLYGON);
roi2.setDrawOffset(roi.getDrawOffset());
} else {
ImageProcessor ip2 = new ByteProcessor(imp.getWidth(), imp.getHeight());
ip2.setColor(255);
roi.drawPixels(ip2);
// new ImagePlus("ip2", ip2.duplicate()).show();
ip2.setThreshold(255, 255, ImageProcessor.NO_LUT_UPDATE);
ThresholdToSelection tts = new ThresholdToSelection();
roi2 = tts.convert(ip2);
}
transferProperties(roi, roi2);
roi2.setStrokeWidth(0);
Color c = roi2.getStrokeColor();
if (c != null) // remove any transparency
roi2.setStrokeColor(new Color(c.getRed(), c.getGreen(), c.getBlue()));
imp.setRoi(roi2);
Roi.previousRoi = (Roi) roi.clone();
}
public void deleteHandle(double ox, double oy) {
if (imp == null) return;
if (nPoints <= 1) {
imp.deleteRoi();
return;
}
boolean splineFit = xSpline != null;
xSpline = null;
FloatPolygon points = getFloatPolygon();
modState = NO_MODS;
if (previousRoi != null) previousRoi.modState = NO_MODS;
int pointToDelete = getClosestPoint(ox, oy, points);
FloatPolygon points2 = new FloatPolygon();
for (int i = 0; i < points.npoints; i++) {
if (i != pointToDelete) points2.addPoint(points.xpoints[i], points.ypoints[i]);
}
if (type == POINT) imp.setRoi(new PointRoi(points2.xpoints, points2.ypoints, points2.npoints));
else {
if (subPixelResolution()) {
Roi roi2 = new PolygonRoi(points2, type);
roi2.setDrawOffset(getDrawOffset());
imp.setRoi(roi2);
} else
imp.setRoi(
new PolygonRoi(toInt(points2.xpoints), toInt(points2.ypoints), points2.npoints, type));
if (splineFit) ((PolygonRoi) imp.getRoi()).fitSpline(splinePoints);
}
}
void addHandle(double ox, double oy) {
if (imp == null || type == ANGLE) return;
boolean splineFit = xSpline != null;
xSpline = null;
FloatPolygon points = getFloatPolygon();
int n = points.npoints;
modState = NO_MODS;
if (previousRoi != null) previousRoi.modState = NO_MODS;
int pointToDuplicate = getClosestPoint(ox, oy, points);
FloatPolygon points2 = new FloatPolygon();
for (int i2 = 0; i2 < n; i2++) {
if (i2 == pointToDuplicate) {
int i1 = i2 - 1;
if (i1 == -1) i1 = isLine() ? i2 : n - 1;
int i3 = i2 + 1;
if (i3 == n) i3 = isLine() ? i2 : 0;
double x1 = points.xpoints[i1] + 2 * (points.xpoints[i2] - points.xpoints[i1]) / 3;
double y1 = points.ypoints[i1] + 2 * (points.ypoints[i2] - points.ypoints[i1]) / 3;
double x2 = points.xpoints[i2] + (points.xpoints[i3] - points.xpoints[i2]) / 3;
double y2 = points.ypoints[i2] + (points.ypoints[i3] - points.ypoints[i2]) / 3;
points2.addPoint(x1, y1);
points2.addPoint(x2, y2);
} else points2.addPoint(points.xpoints[i2], points.ypoints[i2]);
}
if (type == POINT) imp.setRoi(new PointRoi(points2));
else {
if (subPixelResolution()) {
Roi roi2 = new PolygonRoi(points2, type);
roi2.setDrawOffset(getDrawOffset());
imp.setRoi(roi2);
} else
imp.setRoi(
new PolygonRoi(toInt(points2.xpoints), toInt(points2.ypoints), points2.npoints, type));
if (splineFit) ((PolygonRoi) imp.getRoi()).fitSpline(splinePoints);
}
}
private void transferProperties(Roi roi1, Roi roi2) {
if (roi1 == null || roi2 == null) return;
roi2.setStrokeColor(roi1.getStrokeColor());
if (roi1.getStroke() != null) roi2.setStroke(roi1.getStroke());
roi2.setDrawOffset(roi1.getDrawOffset());
}