You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.5 KiB
79 lines
2.5 KiB
/*
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (C) 2016 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/>.
|
|
*
|
|
*/
|
|
|
|
#include "Marlin.h"
|
|
|
|
#if ENABLED(MESH_BED_LEVELING)
|
|
|
|
#define MESH_X_DIST ((MESH_MAX_X - (MESH_MIN_X))/(MESH_NUM_X_POINTS - 1))
|
|
#define MESH_Y_DIST ((MESH_MAX_Y - (MESH_MIN_Y))/(MESH_NUM_Y_POINTS - 1))
|
|
|
|
class mesh_bed_leveling {
|
|
public:
|
|
uint8_t active;
|
|
float z_values[MESH_NUM_Y_POINTS][MESH_NUM_X_POINTS];
|
|
|
|
mesh_bed_leveling();
|
|
|
|
void reset();
|
|
|
|
float get_x(int i) { return MESH_MIN_X + (MESH_X_DIST) * i; }
|
|
float get_y(int i) { return MESH_MIN_Y + (MESH_Y_DIST) * i; }
|
|
void set_z(int ix, int iy, float z) { z_values[iy][ix] = z; }
|
|
|
|
int select_x_index(float x) {
|
|
int i = 1;
|
|
while (x > get_x(i) && i < MESH_NUM_X_POINTS - 1) i++;
|
|
return i - 1;
|
|
}
|
|
|
|
int select_y_index(float y) {
|
|
int i = 1;
|
|
while (y > get_y(i) && i < MESH_NUM_Y_POINTS - 1) i++;
|
|
return i - 1;
|
|
}
|
|
|
|
float calc_z0(float a0, float a1, float z1, float a2, float z2) {
|
|
float delta_z = (z2 - z1) / (a2 - a1);
|
|
float delta_a = a0 - a1;
|
|
return z1 + delta_a * delta_z;
|
|
}
|
|
|
|
float get_z(float x0, float y0) {
|
|
int x_index = select_x_index(x0);
|
|
int y_index = select_y_index(y0);
|
|
float z1 = calc_z0(x0,
|
|
get_x(x_index), z_values[y_index][x_index],
|
|
get_x(x_index + 1), z_values[y_index][x_index + 1]);
|
|
float z2 = calc_z0(x0,
|
|
get_x(x_index), z_values[y_index + 1][x_index],
|
|
get_x(x_index + 1), z_values[y_index + 1][x_index + 1]);
|
|
float z0 = calc_z0(y0,
|
|
get_y(y_index), z1,
|
|
get_y(y_index + 1), z2);
|
|
return z0;
|
|
}
|
|
};
|
|
|
|
extern mesh_bed_leveling mbl;
|
|
|
|
#endif // MESH_BED_LEVELING
|
|
|