Function EndPlot

implot3d.cpp:1759–1870

}

void EndPlot() {
    IMPLOT3D_CHECK_CTX();
    ImPlot3DContext& gp = *GImPlot3D;
    IM_ASSERT_USER_ERROR(gp.CurrentPlot != nullptr, "Mismatched BeginPlot()/EndPlot()!");
    ImPlot3DPlot& plot = *gp.CurrentPlot;

    // Move triangles from 3D draw list to ImGui draw list
    plot.DrawList.SortedMoveToImGuiDrawList();

    // Handle data fitting
    if (plot.FitThisFrame) {
        plot.FitThisFrame = false;

        const bool axis_equal = ImHasFlag(plot.Flags, ImPlot3DFlags_Equal);
        if (!axis_equal) {
            // Apply fit to all axes independently
            for (int i = 0; i < 3; i++) {
                if (plot.Axes[i].FitThisFrame) {
                    plot.Axes[i].FitThisFrame = false;
                    plot.Axes[i].ApplyFit();
                }
            }
        } else {
            // Find the fitted axis with the highest aspect ratio (units per NDC unit) after fit
            // This axis will require the most space and should be used as reference
            ImAxis3D ref_axis = ImAxis3D_X;
            double max_aspect = 0.0;

            // First, apply fit to all axes
            for (int i = 0; i < 3; i++) {
                if (plot.Axes[i].FitThisFrame) {
                    plot.Axes[i].FitThisFrame = false;
                    plot.Axes[i].ApplyFit();

                    // Get aspect ratio for this axis
                    double aspect = plot.Axes[i].GetAspect();
                    if (aspect > max_aspect) {
                        max_aspect = aspect;
                        ref_axis = (ImAxis3D)i;
                    }
                }
            }

            // Then, apply equal aspect constraint if enabled
            // This ensures data remains centered and visible
            plot.ApplyEqualAspect(ref_axis);
        }
    }

    // Lock setup if not already done
    SetupLock();

    // Pop plot rect clipping
    ImGui::PopClipRect();

    // Reset legend hover
    plot.Items.Legend.Hovered = false;