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[2.0.0] Better off mesh behavior for UBL (#8714)

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* Better off mesh behaviour for UBL

* Suggested ubl.h changes
2.0.x
Roxy-3D 7 years ago committed by Scott Lahteine
parent cffd052fee
commit f58eb391aa
2 changed files with 15 additions and 25 deletions
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2
Marlin/src/config/examples/gCreate/gMax1.5+/Configuration.h
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@ -973,7 +973,7 @@
//========================= Unified Bed Leveling ============================
//===========================================================================
//#define MESH_EDIT_GFX_OVERLAY // Display a graphics overlay while editing the mesh
#define MESH_EDIT_GFX_OVERLAY // Display a graphics overlay while editing the mesh
#define MESH_INSET 45 // Mesh inset margin on print area
#define GRID_MAX_POINTS_X 10 // Don't use more than 15 points per axis, implementation limited.

38
Marlin/src/feature/bedlevel/ubl/ubl.h
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@ -200,10 +200,10 @@ class unified_bed_leveling {
* the case where the printer is making a vertical line that only crosses horizontal mesh lines.
*/
inline static float z_correction_for_x_on_horizontal_mesh_line(const float &rx0, const int x1_i, const int yi) {
if (!WITHIN(x1_i, 0, GRID_MAX_POINTS_X - 2) || !WITHIN(yi, 0, GRID_MAX_POINTS_Y - 1)) {
if (!WITHIN(x1_i, 0, GRID_MAX_POINTS_X - 1) || !WITHIN(yi, 0, GRID_MAX_POINTS_Y - 1)) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
serialprintPGM( !WITHIN(x1_i, 0, GRID_MAX_POINTS_X - 1) ? PSTR("x1l_i") : PSTR("yi") );
serialprintPGM( !WITHIN(x1_i, 0, GRID_MAX_POINTS_X - 1) ? PSTR("x1_i") : PSTR("yi") );
SERIAL_ECHOPAIR(" out of bounds in z_correction_for_x_on_horizontal_mesh_line(rx0=", rx0);
SERIAL_ECHOPAIR(",x1_i=", x1_i);
SERIAL_ECHOPAIR(",yi=", yi);
@ -217,17 +217,19 @@ class unified_bed_leveling {
const float xratio = (rx0 - mesh_index_to_xpos(x1_i)) * (1.0 / (MESH_X_DIST)),
z1 = z_values[x1_i][yi];
return z1 + xratio * (z_values[x1_i + 1][yi] - z1);
return z1 + xratio * (z_values[min(x1_i, GRID_MAX_POINTS_X - 2) + 1][yi] - z1); // Don't allow x1_i+1 to be past the end of the array
// If it is, it is clamped to the last element of the
// z_values[][] array and no correction is applied.
}
//
// See comments above for z_correction_for_x_on_horizontal_mesh_line
//
inline static float z_correction_for_y_on_vertical_mesh_line(const float &ry0, const int xi, const int y1_i) {
if (!WITHIN(xi, 0, GRID_MAX_POINTS_X - 1) || !WITHIN(y1_i, 0, GRID_MAX_POINTS_Y - 2)) {
if (!WITHIN(xi, 0, GRID_MAX_POINTS_X - 1) || !WITHIN(y1_i, 0, GRID_MAX_POINTS_Y - 1)) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
serialprintPGM( !WITHIN(xi, 0, GRID_MAX_POINTS_X - 1) ? PSTR("xi") : PSTR("yl_i") );
serialprintPGM( !WITHIN(xi, 0, GRID_MAX_POINTS_X - 1) ? PSTR("xi") : PSTR("y1_i") );
SERIAL_ECHOPAIR(" out of bounds in z_correction_for_y_on_vertical_mesh_line(ry0=", ry0);
SERIAL_ECHOPAIR(", xi=", xi);
SERIAL_ECHOPAIR(", y1_i=", y1_i);
@ -241,7 +243,9 @@ class unified_bed_leveling {
const float yratio = (ry0 - mesh_index_to_ypos(y1_i)) * (1.0 / (MESH_Y_DIST)),
z1 = z_values[xi][y1_i];
return z1 + yratio * (z_values[xi][y1_i + 1] - z1);
return z1 + yratio * (z_values[xi][min(y1_i, GRID_MAX_POINTS_Y - 2) + 1] - z1); // Don't allow y1_i+1 to be past the end of the array
// If it is, it is clamped to the last element of the
// z_values[][] array and no correction is applied.
}
/**
@ -252,29 +256,15 @@ class unified_bed_leveling {
*/
static float get_z_correction(const float &rx0, const float &ry0) {
const int8_t cx = get_cell_index_x(rx0),
cy = get_cell_index_y(ry0);
if (!WITHIN(cx, 0, GRID_MAX_POINTS_X - 2) || !WITHIN(cy, 0, GRID_MAX_POINTS_Y - 2)) {
SERIAL_ECHOPAIR("? in get_z_correction(rx0=", rx0);
SERIAL_ECHOPAIR(", ry0=", ry0);
SERIAL_CHAR(')');
SERIAL_EOL();
#if ENABLED(ULTRA_LCD)
strcpy(lcd_status_message, "get_z_correction() indexes out of range.");
lcd_quick_feedback();
#endif
return NAN;
}
cy = get_cell_index_y(ry0); // return values are clamped
const float z1 = calc_z0(rx0,
mesh_index_to_xpos(cx), z_values[cx][cy],
mesh_index_to_xpos(cx + 1), z_values[cx + 1][cy]);
mesh_index_to_xpos(cx + 1), z_values[min(cx, GRID_MAX_POINTS_X - 2) + 1][cy]);
const float z2 = calc_z0(rx0,
mesh_index_to_xpos(cx), z_values[cx][cy + 1],
mesh_index_to_xpos(cx + 1), z_values[cx + 1][cy + 1]);
mesh_index_to_xpos(cx), z_values[cx][min(cy, GRID_MAX_POINTS_Y - 2) + 1],
mesh_index_to_xpos(cx + 1), z_values[min(cx, GRID_MAX_POINTS_X - 2) + 1][min(cy, GRID_MAX_POINTS_Y - 2) + 1]);
float z0 = calc_z0(ry0,
mesh_index_to_ypos(cy), z1,

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