void convexHull(ImagePlus imp) {
Roi roi = imp.getRoi();
int type = roi != null ? roi.getType() : -1;
if (!(type == Roi.FREEROI
|| type == Roi.TRACED_ROI
|| type == Roi.POLYGON
|| type == Roi.POINT)) {
IJ.error("Convex Hull", "Polygonal or point selection required");
return;
}
if (roi instanceof EllipseRoi) return;
Polygon p = roi.getConvexHull();
if (p != null) imp.setRoi(new PolygonRoi(p.xpoints, p.ypoints, p.npoints, roi.POLYGON));
}
void convexHull(ImagePlus imp) {
Roi roi = imp.getRoi();
int type = roi != null ? roi.getType() : -1;
if (!(type == Roi.FREEROI
|| type == Roi.TRACED_ROI
|| type == Roi.POLYGON
|| type == Roi.POINT)) {
IJ.error("Convex Hull", "Polygonal or point selection required");
return;
}
if (roi instanceof EllipseRoi) return;
// if (roi.subPixelResolution() && roi instanceof PolygonRoi) {
// FloatPolygon p = ((PolygonRoi)roi).getFloatConvexHull();
// if (p!=null)
// imp.setRoi(new PolygonRoi(p.xpoints, p.ypoints, p.npoints, roi.POLYGON));
// } else {
Polygon p = roi.getConvexHull();
if (p != null) {
Undo.setup(Undo.ROI, imp);
Roi roi2 = new PolygonRoi(p.xpoints, p.ypoints, p.npoints, roi.POLYGON);
transferProperties(roi, roi2);
imp.setRoi(roi2);
}
}