makeCoordinatePrecise method
Rounds a Coordinate to the PrecisionModel grid.
Implementation
void makeCoordinatePrecise(Coordinate coord) {
// optimization for full precision
if (modelType == FLOATING) return;
coord.x = makePrecise(coord.x);
coord.y = makePrecise(coord.y);
//MD says it's OK that we're not makePrecise'ing the z [Jon Aquino]
}