公开(公告)号：US20170148209A1

公开(公告)日：2017-05-25

申请号：US15108704

申请日：2015-07-07

Applicant: Landmark Graphics Corporation

Inventor： Zitao Xu ,  Genbao Shi ,  Andres Cesar Callegari ,  ChiKang David Chien ,  Jeffrey Marc Yarus

IPC: G06T15/80 ,  G06T15/00 ,  G06T15/04

CPC classification number: G06T15/80 ,  G06T15/005 ,  G06T15/04

Abstract: A consecutive set of data points, P1, P2, P3, and P4, is selected. A first line is created through P1 and P3. A first tangent vector originating at P2, parallel to the first line, is created. A second line through P2 and P4 is created. A second tangent vector through P3 is created. The second tangent vector is parallel to the second line. A baseline through P2 and P3 is created. A Bezier curve between P2 and P3 is created, wherein the Bezier curve has a degree. The degree of the Bezier curve is determined based on a comparison of the first tangent vector, the second tangent vector, and the baseline.

公开(公告)号：US10922782B2

公开(公告)日：2021-02-16

申请号：US16340029

申请日：2016-12-16

Applicant: Landmark Graphics Corporation

Inventor： Zitao Xu ,  Genbao Shi ,  ChiKang David Chien ,  Maurice Gehin ,  Andres Cesar Callegari ,  Jeffrey Marc Yarus

IPC: G06K9/32 ,  G06T3/00 ,  G06T1/60 ,  G06T11/40

Abstract: Systems and methods for mapping vertices from one coordinate system in an earth model to another coordinate system in a two-dimensional (2D) array without disrupting the topology of the vertices.

公开(公告)号：US10319140B2

公开(公告)日：2019-06-11

申请号：US15108704

申请日：2015-07-07

Applicant: Landmark Graphics Corporation

Inventor： Zitao Xu ,  Genbao Shi ,  Andres Cesar Callegari ,  ChiKang David Chien ,  Jeffrey Marc Yarus

IPC: G06T15/80 ,  G06T15/00 ,  G06T15/04

Abstract: A consecutive set of data points, P1, P2, P3, and P4, is selected. A first line is created through P1 and P3. A first tangent vector originating at P2, parallel to the first line, is created. A second line through P2 and P4 is created. A second tangent vector through P3 is created. The second tangent vector is parallel to the second line. A baseline through P2 and P3 is created. A Bezier curve between P2 and P3 is created, wherein the Bezier curve has a degree. The degree of the Bezier curve is determined based on a comparison of the first tangent vector, the second tangent vector, and the baseline.