public void runExtractedLine(String wkt, double start, double end) throws ParseException { System.out.println("========================="); Geometry g1 = rdr.read(wkt); System.out.println("Input Geometry: " + g1); System.out.println("Indices to extract: " + start + " " + end); LengthIndexedLine indexedLine = new LengthIndexedLine(g1); Geometry subLine = indexedLine.extractLine(start, end); System.out.println("Extracted Line: " + subLine); double[] index = indexedLine.indicesOf(subLine); System.out.println("Indices of extracted line: " + index[0] + " " + index[1]); Coordinate midpt = indexedLine.extractPoint((index[0] + index[1]) / 2); System.out.println("Midpoint of extracted line: " + midpt); } }
protected Geometry indicesOfThenExtract(Geometry linearGeom, Geometry subLine) { LengthIndexedLine indexedLine = new LengthIndexedLine(linearGeom); double[] loc = indexedLine.indicesOf(subLine); Geometry result = indexedLine.extractLine(loc[0], loc[1]); return result; }