Bugfix: Douglas-Peucker used perpendicular distance instead of shortest distance, thus clipping more than it should. #2474

1 files changed, 1 insertions, 0 deletions

diff --git a/xs/src/libslic3r/MultiPoint.cpp b/xs/src/libslic3r/MultiPoint.cpp
index 24f210a99..e4944edca 100644
--- a/xs/src/libslic3r/MultiPoint.cpp
+++ b/xs/src/libslic3r/MultiPoint.cpp
@@ -90,6 +90,7 @@ MultiPoint::_douglas_peucker(const Points &points, const double tolerance)
     size_t index = 0;
     Line full(points.front(), points.back());
     for (Points::const_iterator it = points.begin() + 1; it != points.end(); ++it) {
+        // we use shortest distance, not perpendicular distance
         double d = it->distance_to(full);
         if (d > dmax) {
             index = it - points.begin();