Method fitSpline

ij/src/main/java/ij/plugin/Selection.java:265–294

()

	}

	void fitSpline() {
		Roi roi = imp.getRoi();
		if (roi==null)
			{noRoi("Spline"); return;}
		int type = roi.getType();
		boolean segmentedSelection = type==Roi.POLYGON||type==Roi.POLYLINE;
		if (!(segmentedSelection||type==Roi.FREEROI||type==Roi.TRACED_ROI||type==Roi.FREELINE))
			{IJ.error("Spline Fit", "Polygon or polyline selection required"); return;}
		if (roi instanceof EllipseRoi)
			return;
		PolygonRoi p = (PolygonRoi)roi;
		p = (PolygonRoi)p.clone();
		Undo.setup(Undo.ROI, imp);
		if (!segmentedSelection && p.getNCoordinates()>3) {
			if (p.subPixelResolution())
				p = trimFloatPolygon(p, p.getUncalibratedLength());
			else
				p = trimPolygon(p, p.getUncalibratedLength());
		}
		String options = Macro.getOptions();
		if (options!=null && options.indexOf("straighten")!=-1)
			p.fitSplineForStraightening();
		else if (options!=null && options.indexOf("remove")!=-1)
			p.removeSplineFit();
		else
			p.fitSpline();
		imp.setRoi(p);
		imp.draw();
		LineWidthAdjuster.update(); 
	}
	
	void interpolate() {
		Roi roi = imp.getRoi();