实体定义
属性定义
序号属性名称中文解释数据类型必填
GfcRoot
GfcSection
GfcParameterizedSection
1PositionGfcCoordinates2d
GfcTShapeSection
2WidthGfcDouble
3HeightGfcDouble
4Thickness1GfcDouble
5Thickness2GfcDouble
6LeftWidthGfcDouble
继承关系
GfcRoot
  └GfcSection
    └GfcParameterizedSection
      └GfcTShapeSection