IISPRS Journal of Photogrammetry and Remote Sensing4/9/2026Directional geometric primitive segmentation and topological reconstruction for fine-grained roof structure extractionWenling Yu·Jianya Gong·Kun Zhang·Yujie Zan·Shiqing Wei·Muying Luo·Shunping JiRead at ISPRS Journal of Photogrammetry and Remote SensingTags3D Shape Modeling and AnalysisComputational Mechanics