the usual method for extracting ridge line and valley line is based on geometric and physical character which is difficult to use the information hiding in the digital data.
so off we went up a moderately steep ridge line through a bamboo and hardwood forest. after about 10 minutes mr. he and rolf stopped and pointed to the opposite side of the valley about 100 m distant.
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,最后添加竖直的墻面构造完整的房屋模型。
the symmetry of the gable is broken along the ridge line to leave space for a long blade of light, which provides excellent visual quality to the owner.
尖顶的几何感被从脊梁处打破,以为自然光準备充足的空间,为住户提供绝佳的视觉享受。
this algorithm is realized by block orientation rough matching, ridge line fine matching in template and ridge matching in windows with two levels of judgement.