METHOD AND DEVICE FOR PROCESSING JOINT OF DIGITAL TERRAIN MODEL

WIPO Patent Application WO/2016/095682

A1

Disclosed are a method and device for processing a joint of a digital terrain model. The method may comprise: comparing coordinates, in a horizontal plane, of boundary points on adjacent boundaries of two adjacent triangulation networks in a digital terrain model, distinguishing the boundary points, of the two adjacent triangulation networks, having overlapping projections in the horizontal plane, and distinguishing the boundary points having non-overlapping projections in the horizontal plane; updating height coordinates, in an axial direction perpendicular to the horizontal plane, of the boundary points having overlapping projections in the horizontal plane into the same values; adding the boundary points, having non-overlapping projections, on the adjacent boundaries of the two adjacent triangulation networks into each other's boundary point sets; and forming new triangles in the triangulation networks on the basis of the added boundary points. Therefore, the terrains on two sides of the adjacent boundaries of the adjacent triangulation networks are coherent and natural, no plane of a large area is added, and the total drawing efficiency is not reduced.

ZHU WENZHENG (CN)
JIA SHUANGCHENG (CN)

PCT/CN2015/095642

June 23, 2016

November 26, 2015

Click for automatic bibliography generation  

AUTONAVI SOFTWARE CO LTD (CN)

G06T17/05

CN101320488A	2008-12-10
CN102129712A	2011-07-20
CN103093500A	2013-05-08
KR100609004B1	2006-08-03
US20060066613A1	2006-03-30

LIU, QINGYUAN ET AL.: "Establishment of DTM and Research into Algorithm of Boundary Line", MINE SURVEYING, 31 March 2004 (2004-03-31)

UNITALEN ATTORNEYS AT LAW (CN)
北京集佳知识产权代理有限公司 (CN)

View/Download PDF      PDF Help

Previous Patent: METHOD AND DEVICE FOR APPLICATION RUNNING IN BACKGROUND

Next Patent: METHOD AND DEVICE FOR ELIMINATING TDD NOISE