From b86e8562b1ddca2a8bc29f22a79451a041bf5293 Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 3 Sep 2012 09:54:39 +0200 Subject: mesa xkeyboard-config git update 3 sep 2012 --- mesalib/src/glu/sgi/libnurbs/nurbtess/polyUtil.cc | 90 ----------------------- 1 file changed, 90 deletions(-) delete mode 100644 mesalib/src/glu/sgi/libnurbs/nurbtess/polyUtil.cc (limited to 'mesalib/src/glu/sgi/libnurbs/nurbtess/polyUtil.cc') diff --git a/mesalib/src/glu/sgi/libnurbs/nurbtess/polyUtil.cc b/mesalib/src/glu/sgi/libnurbs/nurbtess/polyUtil.cc deleted file mode 100644 index f9a27f402..000000000 --- a/mesalib/src/glu/sgi/libnurbs/nurbtess/polyUtil.cc +++ /dev/null @@ -1,90 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -*/ -/* -*/ - -#include -#include - -#include "polyUtil.h" - -Real area(Real A[2], Real B[2], Real C[2]) -{ - Real Bx, By, Cx, Cy; - Bx = B[0] - A[0]; - By = B[1] - A[1]; - Cx = C[0] - A[0]; - Cy = C[1] - A[1]; - return Bx*Cy - Cx*By; - -/* return (B[0]-A[0])*(C[1]-A[1]) - (C[0]-A[0])*(B[1]-A[1]);*/ -} - -/*given a directed line A->B, and a point P, - *determine whether P is to the left of AB. - *the line A->B (imagine it has beedn extended both - *end to the infinity) divides the plan into two - *half planes. When we walk from A to B, one - *half is to the left and the other half is to the right. - *return 1 if P is to the left. - *if P is on AB, 0 is returned. - */ -Int pointLeftLine(Real A[2], Real B[2], Real P[2]) -{ - if(area(A, B, P) >0) return 1; - else return 0; -} - -/*given two directed line: A -> B -> C, and another point P. - *determine whether P is to the left hand side of A->B->C. - *Think of BA and BC extended as two rays. So that the plane is - * divided into two parts. One part is to the left we walk from A - *to B and to C, the other part is to the right. - * In order for P to be the left, P must be either to the left - *of - */ -Int pointLeft2Lines(Real A[2], Real B[2], Real C[2], Real P[2]) -{ - Int C_left_AB = (area(A, B, C)>0); - Int P_left_AB = (area(A, B, P)>0); - Int P_left_BC = (area(B, C, P)>0); - - if(C_left_AB) - { - return (P_left_AB && P_left_BC); - } - else - return (P_left_AB || P_left_BC); -} -- cgit v1.2.3