The roof's ridge line is obtained by intersecting roof planes, and the building's footprint is determined by analysis of roof points.
通过屋顶平面相交得到屋脊线，通过点的范围分析确定屋顶的边缘，最后添加竖直的墙面构造完整的房屋模型。
The roof's ridge line is obtained by intersecting roof planes, and the building's footprint is determined by analysis of roof points.
通过屋顶平面相交得到屋脊线，通过点的范围分析确定屋顶的边缘，最后添加竖直的墙面构造完整的房屋模型。
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