NCBI C++ ToolKit
treenodevbo_base.cpp
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1 /* $Id: treenodevbo_base.cpp 43891 2019-09-16 13:50:00Z evgeniev $
2  * ===========================================================================
3  *
4  * PUBLIC DOMAIN NOTICE
5  * National Center for Biotechnology Information
6  *
7  * This software/database is a "United States Government Work" under the
8  * terms of the United States Copyright Act. It was written as part of
9  * the author's official duties as a United States Government employee and
10  * thus cannot be copyrighted. This software/database is freely available
11  * to the public for use. The National Library of Medicine and the U.S.
12  * Government have not placed any restriction on its use or reproduction.
13  *
14  * Although all reasonable efforts have been taken to ensure the accuracy
15  * and reliability of the software and data, the NLM and the U.S.
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22  * Please cite the author in any work or product based on this material.
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24  * ===========================================================================
25  *
26  * Authors: Roman Katargin
27  *
28  * File Description:
29  *
30  */
31 
32 #include <ncbi_pch.hpp>
33 
34 #include "treenodevbo_base.hpp"
35 
37 
39 {
40  if (m_NumSegments < 4)
41  return;
42 
43  float delta = 2*3.141592653589793238463f/m_NumSegments;
44  float angle = delta;
45 
46  data.push_back(CVect2<float>(-0.5f, 0.5f));
47 
48  data.push_back(CVect2<float>(1.0f, 0.0f));
49  for (size_t i = 0; i < m_NumSegments - 1; i++) {
50  data.push_back(CVect2<float>(cos(angle), sin(angle)));
51  angle += delta;
52  }
53  data.push_back(CVect2<float>(1.0f, 0.0f));
54 }
55 
virtual void GetVertexBuffer2D(vector< CVect2< float > > &data) const
#define END_NCBI_SCOPE
End previously defined NCBI scope.
Definition: ncbistl.hpp:103
#define BEGIN_NCBI_SCOPE
Define ncbi namespace.
Definition: ncbistl.hpp:100
int i
Int4 delta(size_t dimension_, const Int4 *score_)
Modified on Wed Feb 21 09:57:49 2024 by modify_doxy.py rev. 669887