indexOfFromStart method
Implementation
double indexOfFromStart(Coordinate inputPt, double minIndex) {
double minDistance = double.maxFinite;
double ptMeasure = minIndex;
double segmentStartMeasure = 0.0;
LineSegment seg = new LineSegment.empty();
LinearIterator it = new LinearIterator(linearGeom);
while (it.hasNext()) {
if (!it.isEndOfLine()) {
seg.p0 = it.getSegmentStart();
seg.p1 = it.getSegmentEnd()!;
double segDistance = seg.distanceCoord(inputPt);
double segMeasureToPt =
segmentNearestMeasure(seg, inputPt, segmentStartMeasure);
if (segDistance < minDistance && segMeasureToPt > minIndex) {
ptMeasure = segMeasureToPt;
minDistance = segDistance;
}
segmentStartMeasure += seg.getLength();
}
it.next();
}
return ptMeasure;
}