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- /**
- * Marlin 3D Printer Firmware
- * Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
- /**
- * unified.cpp - Unified Bed Leveling
- */
-
- #include "../../../inc/MarlinConfig.h"
-
- #if ENABLED(AUTO_BED_LEVELING_UBL)
-
- #include "../../gcode.h"
- #include "../../../feature/bedlevel/bedlevel.h"
-
- /**
- * M421: Set a single Mesh Bed Leveling Z coordinate
- *
- * Usage:
- * M421 I<xindex> J<yindex> Z<linear>
- * M421 I<xindex> J<yindex> Q<offset>
- * M421 I<xindex> J<yindex> N
- * M421 C Z<linear>
- * M421 C Q<offset>
- */
- void GcodeSuite::M421() {
- int8_t ix = parser.intval('I', -1), iy = parser.intval('J', -1);
- const bool hasI = ix >= 0,
- hasJ = iy >= 0,
- hasC = parser.seen('C'),
- hasN = parser.seen('N'),
- hasZ = parser.seen('Z'),
- hasQ = !hasZ && parser.seen('Q');
-
- if (hasC) {
- const mesh_index_pair location = ubl.find_closest_mesh_point_of_type(REAL, current_position[X_AXIS], current_position[Y_AXIS], USE_NOZZLE_AS_REFERENCE, NULL);
- ix = location.x_index;
- iy = location.y_index;
- }
-
- if (int(hasC) + int(hasI && hasJ) != 1 || !(hasZ || hasQ || hasN))
- SERIAL_ERROR_MSG(MSG_ERR_M421_PARAMETERS);
- else if (!WITHIN(ix, 0, GRID_MAX_POINTS_X - 1) || !WITHIN(iy, 0, GRID_MAX_POINTS_Y - 1))
- SERIAL_ERROR_MSG(MSG_ERR_MESH_XY);
- else {
- ubl.z_values[ix][iy] = hasN ? NAN : parser.value_linear_units() + (hasQ ? ubl.z_values[ix][iy] : 0);
- #if ENABLED(EXTENSIBLE_UI)
- ExtUI::onMeshUpdate(ix, iy, ubl.z_values[ix][iy]);
- #endif
- }
- }
-
- #endif // AUTO_BED_LEVELING_UBL
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