Check for limits when searching for starting point.

MarlinFirmware · Mar 26, 2021 · 34d38c5 · 34d38c5
1 parent 0c91290
commit 34d38c5
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/Marlin/src/feature/bedlevel/hilbert_curve.cpp b/Marlin/src/feature/bedlevel/hilbert_curve.cpp
@@ -101,8 +101,10 @@ bool hilbert_curve::search_from(uint8_t x, uint8_t y, hilbert_curve::callback_pt
  */
 bool hilbert_curve::search_from_closest(const xy_pos_t &pos, hilbert_curve::callback_ptr func, void *data) {
   // Find closest grid intersection
-  const uint8_t grid_x = LROUND(float(pos.x - MESH_MIN_X) / MESH_X_DIST);
-  const uint8_t grid_y = LROUND(float(pos.y - MESH_MIN_Y) / MESH_Y_DIST);
+  uint8_t grid_x = LROUND(float(pos.x - MESH_MIN_X) / MESH_X_DIST);
+  uint8_t grid_y = LROUND(float(pos.y - MESH_MIN_Y) / MESH_Y_DIST);
+  LIMIT(grid_x, 0, GRID_MAX_POINTS_X);
+  LIMIT(grid_y, 0, GRID_MAX_POINTS_Y);
   return search_from(grid_x, grid_y, func, data);
 }
 #endif // UBL_HILBERT_CURVE