Method _CalcCircleAutoSegmentCount

3rdparty/imgui/src/imgui_draw.cpp:656–664

}

int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
{
    // Automatic segment count
    const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy
    if (radius_idx >= 0 && radius_idx < IM_COUNTOF(_Data->CircleSegmentCounts))
        return _Data->CircleSegmentCounts[radius_idx]; // Use cached value
    else
        return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
}

// Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect)