diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index 918bae1a0..5d3a43183 100755 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -8652,7 +8652,68 @@ void set_current_from_steppers_for_axis(const AxisEnum axis) { mesh_line_to_destination(fr_mm_s, x_splits, y_splits); } -#endif // MESH_BED_LEVELING +#elif ENABLED(AUTO_BED_LEVELING_BILINEAR) + + /** + * Prepare a mesh-leveled linear move in a Cartesian setup, + * splitting the move where it crosses mesh borders. + */ + void bilinear_line_to_destination(float fr_mm_s, uint8_t x_splits = 0xff, uint8_t y_splits = 0xff) { + int cx1 = RAW_CURRENT_POSITION(X_AXIS) / bilinear_grid_spacing[X_AXIS], + cy1 = RAW_CURRENT_POSITION(Y_AXIS) / bilinear_grid_spacing[Y_AXIS], + cx2 = RAW_X_POSITION(destination[X_AXIS]) / bilinear_grid_spacing[X_AXIS], + cy2 = RAW_Y_POSITION(destination[Y_AXIS]) / bilinear_grid_spacing[Y_AXIS]; + NOMORE(cx1, ABL_GRID_POINTS_X - 2); + NOMORE(cy1, ABL_GRID_POINTS_Y - 2); + NOMORE(cx2, ABL_GRID_POINTS_X - 2); + NOMORE(cy2, ABL_GRID_POINTS_Y - 2); + + if (cx1 == cx2 && cy1 == cy2) { + // Start and end on same mesh square + line_to_destination(fr_mm_s); + set_current_to_destination(); + return; + } + + #define LINE_SEGMENT_END(A) (current_position[A ##_AXIS] + (destination[A ##_AXIS] - current_position[A ##_AXIS]) * normalized_dist) + + float normalized_dist, end[NUM_AXIS]; + + // Split at the left/front border of the right/top square + int8_t gcx = max(cx1, cx2), gcy = max(cy1, cy2); + if (cx2 != cx1 && TEST(x_splits, gcx)) { + memcpy(end, destination, sizeof(end)); + destination[X_AXIS] = LOGICAL_X_POSITION(bilinear_start[X_AXIS] + bilinear_grid_spacing[X_AXIS] * gcx); + normalized_dist = (destination[X_AXIS] - current_position[X_AXIS]) / (end[X_AXIS] - current_position[X_AXIS]); + destination[Y_AXIS] = LINE_SEGMENT_END(Y); + CBI(x_splits, gcx); + } + else if (cy2 != cy1 && TEST(y_splits, gcy)) { + memcpy(end, destination, sizeof(end)); + destination[Y_AXIS] = LOGICAL_Y_POSITION(bilinear_start[Y_AXIS] + bilinear_grid_spacing[Y_AXIS] * gcy); + normalized_dist = (destination[Y_AXIS] - current_position[Y_AXIS]) / (end[Y_AXIS] - current_position[Y_AXIS]); + destination[X_AXIS] = LINE_SEGMENT_END(X); + CBI(y_splits, gcy); + } + else { + // Already split on a border + line_to_destination(fr_mm_s); + set_current_to_destination(); + return; + } + + destination[Z_AXIS] = LINE_SEGMENT_END(Z); + destination[E_AXIS] = LINE_SEGMENT_END(E); + + // Do the split and look for more borders + bilinear_line_to_destination(fr_mm_s, x_splits, y_splits); + + // Restore destination from stack + memcpy(destination, end, sizeof(end)); + bilinear_line_to_destination(fr_mm_s, x_splits, y_splits); + } + +#endif // AUTO_BED_LEVELING_BILINEAR #if IS_KINEMATIC @@ -8846,6 +8907,12 @@ void set_current_from_steppers_for_axis(const AxisEnum axis) { return false; } else + #elif ENABLED(AUTO_BED_LEVELING_BILINEAR) + if (planner.abl_enabled) { + bilinear_line_to_destination(MMS_SCALED(feedrate_mm_s)); + return false; + } + else #endif line_to_destination(MMS_SCALED(feedrate_mm_s)); }