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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 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"
-
- #if ENABLED(EXTENSIBLE_UI)
- #include "../../../lcd/extui/ui_api.h"
- #endif
-
- /**
- * 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() {
- xy_int8_t ij = { int8_t(parser.intval('I', -1)), int8_t(parser.intval('J', -1)) };
- const bool hasI = ij.x >= 0,
- hasJ = ij.y >= 0,
- hasC = parser.seen('C'),
- hasN = parser.seen('N'),
- hasZ = parser.seen('Z'),
- hasQ = !hasZ && parser.seen('Q');
-
- if (hasC) ij = ubl.find_closest_mesh_point_of_type(REAL, current_position);
-
- if (int(hasC) + int(hasI && hasJ) != 1 || !(hasZ || hasQ || hasN))
- SERIAL_ERROR_MSG(STR_ERR_M421_PARAMETERS);
- else if (!WITHIN(ij.x, 0, GRID_MAX_POINTS_X - 1) || !WITHIN(ij.y, 0, GRID_MAX_POINTS_Y - 1))
- SERIAL_ERROR_MSG(STR_ERR_MESH_XY);
- else {
- float &zval = ubl.z_values[ij.x][ij.y];
- zval = hasN ? NAN : parser.value_linear_units() + (hasQ ? zval : 0);
- TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(ij.x, ij.y, zval));
- }
- }
-
- #endif // AUTO_BED_LEVELING_UBL
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