| 序号 | 属性名称 | 中文解释 | 数据类型 | 必填 |
| GfcRoot | ||||
| GfcShape | ||||
| 1 | LocalCoordinate | 局部坐标系 | GfcCoordinates3d | √ |
| 2 | BoundingBox | 外接包围盒 | GfcBox3d | |
| GfcParametricShape | ||||
| GfcSolidShape | ||||
| GfcSweptAreaSolidShape | ||||
| 3 | SweptArea | 扫略截面 | GfcSection | √ |
| GfcExtrudedAreaSolidShape | ||||
| 4 | ExtrudedDirection | 拉伸方向 | GfcVector3d | √ |
| 5 | Len | 拉伸长度 | GfcDouble | √ |
| GfcExtrudedAreaSolidTaperedShape | ||||
| 6 | EndSweptArea | 拉伸终端截面，应与起始截面相似 | GfcSection | √ |