This paper presents an algorithm for generating section line based on TIN of coal bed, which makes full use of the topology relation among all triangles in TIN and efficiency index to search triangles with the section line, and can indicate the intersecting relation between faultage and section lines efficiently.

The study on measurement of foramen ovale cranium and the observation of its X-ray anatomy in Chinese people;

Methods:The X-ray anatomy type of hepatic-artery tree in 100 cases with primary hepatocellular carcinoma were observed and analyzed by supplying artery distribution and anatomic morphology in cancer tissue.