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Fix incorrect layer and time shown in Preview legend for pause/custom G-code entries (#11968)

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Fix layer/time display in Preview legend for pause/custom G-code

The Preview legend showed incorrect layer numbers and elapsed time for pause/custom G-code entries. The issue was caused by:

• get_layer_id_at() performing a strict upper_bound search on float Z values,  while custom G-code stores Z positions as doubles. Minor precision differences  often pushed the lookup to return layer 0 or the last layer.

• The legend displayed the raw zero-based layer index.

Fixes included:

• Fetch layer Z values as doubles and use an epsilon-based closest-layer search.
• Display layers as 1-based values for user-facing UI.
• Accumulate time up to the beginning of the identified layer.

This aligns the legend with the vertical slider marker and provides consistent pause/custom G-code reporting.
This commit is contained in:
Kiss Lorand 2026-01-16 19:20:17 +02:00 • committed by GitHub
parent 304ea7867e
commit 95c6cd05fa
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GPG key ID: B5690EEEBB952194
1 changed files with 6 additions and 3 deletions
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9
src/slic3r/GUI/GCodeViewer.cpp
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@ -4062,6 +4062,9 @@ void GCodeViewer::render_legend(float &legend_height, int canvas_width, int canv
ImGui::SameLine(max_len*1.5);
imgui.title(cgcode_time_str, false);
// ORCA: Get layer Zs as doubles
std::vector<double> layer_zs = get_layers_zs();
for (Slic3r::CustomGCode::Item custom_gcode : custom_gcode_per_print_z) {
ImGui::Dummy({window_padding, window_padding});
ImGui::SameLine();
@ -4075,8 +4078,8 @@ void GCodeViewer::render_legend(float &legend_height, int canvas_width, int canv
}
ImGui::SameLine(max_len);
char buf[64];
int layer = m_viewer.get_layer_id_at(custom_gcode.print_z);
::sprintf(buf, "%d",layer );
int layer = find_close_layer_idx(layer_zs, custom_gcode.print_z, epsilon()); // ORCA: find layer index by Z
::sprintf(buf, "%d", layer + 1); // +1 because layer 0 is the first layer
imgui.text(buf);
ImGui::SameLine(max_len * 1.5);
@ -4084,7 +4087,7 @@ void GCodeViewer::render_legend(float &legend_height, int canvas_width, int canv
float custom_gcode_time = 0;
if (layer > 0)
{
for (int i = 0; i < layer-1; i++) {
for (int i = 0; i < layer; i++) { // sum all previous layers time
custom_gcode_time += layer_times[i];
}
}