Function SetupLock

implot3d.cpp:2793–2889

}

void SetupLock() {
    ImPlot3DContext& gp = *GImPlot3D;
    IM_ASSERT_USER_ERROR(gp.CurrentPlot != nullptr, "SetupLock() needs to be called between BeginPlot() and EndPlot()!");
    ImPlot3DPlot& plot = *gp.CurrentPlot;
    if (plot.SetupLocked)
        return;
    // Lock setup
    plot.SetupLocked = true;

    ImGuiContext& g = *GImGui;
    ImGuiWindow* window = g.CurrentWindow;
    ImDrawList* draw_list = window->DrawList;

    // Set default formatter/locator
    for (int i = 0; i < 3; i++) {
        ImPlot3DAxis& axis = plot.Axes[i];

        // Set formatter
        if (axis.Formatter == nullptr) {
            axis.Formatter = Formatter_Default;
            if (axis.FormatterData == nullptr)
                axis.FormatterData = (void*)IMPLOT3D_LABEL_FORMAT;
        }

        // Set locator
        if (axis.Locator == nullptr)
            axis.Locator = Locator_Default;
    }

    // Draw frame background
    ImU32 f_bg_color = GetStyleColorU32(ImPlot3DCol_FrameBg);
    draw_list->AddRectFilled(plot.FrameRect.Min, plot.FrameRect.Max, f_bg_color);

    // Compute canvas/canvas rectangle
    plot.CanvasRect = ImRect(plot.FrameRect.Min + gp.Style.PlotPadding, plot.FrameRect.Max - gp.Style.PlotPadding);
    plot.PlotRect = plot.CanvasRect;

    // Apply equal axis aspect constraint if not approximately equal
    const bool axis_equal = ImHasFlag(plot.Flags, ImPlot3DFlags_Equal);
    if (axis_equal) {
        double xar = plot.Axes[ImAxis3D_X].GetAspect();
        double yar = plot.Axes[ImAxis3D_Y].GetAspect();
        double zar = plot.Axes[ImAxis3D_Z].GetAspect();
        if (!ImAlmostEqual(xar, yar) || !ImAlmostEqual(xar, zar)) {
            double aspect = (xar + yar + zar) / 3.0;
            plot.Axes[ImAxis3D_X].SetAspect(aspect);
            plot.Axes[ImAxis3D_Y].SetAspect(aspect);
            plot.Axes[ImAxis3D_Z].SetAspect(aspect);
        }
    }

    // Compute ticks
    for (int i = 0; i < 3; i++) {
        ImPlot3DAxis& axis = plot.Axes[i];
        if (axis.ShowDefaultTicks) {
            float pixels = float(plot.GetViewScale() * axis.NDCScale);
            axis.Locator(axis.Ticker, axis.Range, pixels, axis.Formatter, axis.FormatterData);
        }