Exemplo n.º 1
0
 PolygonRoi trimPolygon(PolygonRoi roi, double length) {
   int[] x = roi.getXCoordinates();
   int[] y = roi.getYCoordinates();
   int n = roi.getNCoordinates();
   x = smooth(x, n);
   y = smooth(y, n);
   float[] curvature = getCurvature(x, y, n);
   Rectangle r = roi.getBounds();
   double threshold = rodbard(length);
   // IJ.log("trim: "+length+" "+threshold);
   double distance = Math.sqrt((x[1] - x[0]) * (x[1] - x[0]) + (y[1] - y[0]) * (y[1] - y[0]));
   x[0] += r.x;
   y[0] += r.y;
   int i2 = 1;
   int x1, y1, x2 = 0, y2 = 0;
   for (int i = 1; i < n - 1; i++) {
     x1 = x[i];
     y1 = y[i];
     x2 = x[i + 1];
     y2 = y[i + 1];
     distance += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)) + 1;
     distance += curvature[i] * 2;
     if (distance >= threshold) {
       x[i2] = x2 + r.x;
       y[i2] = y2 + r.y;
       i2++;
       distance = 0.0;
     }
   }
   int type = roi.getType() == Roi.FREELINE ? Roi.POLYLINE : Roi.POLYGON;
   if (type == Roi.POLYLINE && distance > 0.0) {
     x[i2] = x2 + r.x;
     y[i2] = y2 + r.y;
     i2++;
   }
   PolygonRoi p = new PolygonRoi(x, y, i2, type);
   if (roi.getStroke() != null) p.setStrokeWidth(roi.getStrokeWidth());
   p.setStrokeColor(roi.getStrokeColor());
   p.setName(roi.getName());
   imp.setRoi(p);
   return p;
 }
Exemplo n.º 2
0
 PolygonRoi trimFloatPolygon(PolygonRoi roi, double length) {
   FloatPolygon poly = roi.getFloatPolygon();
   float[] x = poly.xpoints;
   float[] y = poly.ypoints;
   int n = poly.npoints;
   x = smooth(x, n);
   y = smooth(y, n);
   float[] curvature = getCurvature(x, y, n);
   double threshold = rodbard(length);
   // IJ.log("trim: "+length+" "+threshold);
   double distance = Math.sqrt((x[1] - x[0]) * (x[1] - x[0]) + (y[1] - y[0]) * (y[1] - y[0]));
   int i2 = 1;
   double x1, y1, x2 = 0, y2 = 0;
   for (int i = 1; i < n - 1; i++) {
     x1 = x[i];
     y1 = y[i];
     x2 = x[i + 1];
     y2 = y[i + 1];
     distance += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)) + 1;
     distance += curvature[i] * 2;
     if (distance >= threshold) {
       x[i2] = (float) x2;
       y[i2] = (float) y2;
       i2++;
       distance = 0.0;
     }
   }
   int type = roi.getType() == Roi.FREELINE ? Roi.POLYLINE : Roi.POLYGON;
   if (type == Roi.POLYLINE && distance > 0.0) {
     x[i2] = (float) x2;
     y[i2] = (float) y2;
     i2++;
   }
   PolygonRoi p = new PolygonRoi(x, y, i2, type);
   if (roi.getStroke() != null) p.setStrokeWidth(roi.getStrokeWidth());
   p.setStrokeColor(roi.getStrokeColor());
   p.setDrawOffset(roi.getDrawOffset());
   p.setName(roi.getName());
   imp.setRoi(p);
   return p;
 }