KD Chart 2  [rev.2.5.1]
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TernaryConstants.cpp
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1 /****************************************************************************
2 ** Copyright (C) 2001-2013 Klaralvdalens Datakonsult AB. All rights reserved.
3 **
4 ** This file is part of the KD Chart library.
5 **
6 ** Licensees holding valid commercial KD Chart licenses may use this file in
7 ** accordance with the KD Chart Commercial License Agreement provided with
8 ** the Software.
9 **
10 **
11 ** This file may be distributed and/or modified under the terms of the
12 ** GNU General Public License version 2 and version 3 as published by the
13 ** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
14 **
15 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17 **
18 ** Contact info@kdab.com if any conditions of this licensing are not
19 ** clear to you.
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21 **********************************************************************/
22 
23 #include "TernaryConstants.h"
24 
25 #include <cmath>
26 
27 using namespace std;
28 
29 using namespace std;
30 
31 extern const qreal Sqrt3 = sqrt( 3.0 );
32 extern const qreal TriangleWidth = 1.0;
33 extern const qreal TriangleHeight = 0.5 * Sqrt3;
34 extern const QPointF TriangleTop( 0.5, TriangleHeight );
35 extern const QPointF TriangleBottomLeft( 0.0, 0.0 );
36 extern const QPointF TriangleBottomRight( 1.0, 0.0 );
37 extern const QPointF AxisVector_C_A( TriangleTop - TriangleBottomRight );
38 extern const QPointF Norm_C_A( -AxisVector_C_A.y(), AxisVector_C_A.x() );
39 extern const QPointF AxisVector_B_A( TriangleTop );
40 extern const QPointF Norm_B_A( -AxisVector_B_A.y(), AxisVector_B_A.x() );
41 extern const QPointF AxisVector_B_C( TriangleBottomRight );
42 extern const QPointF Norm_B_C( -AxisVector_B_C.y(), AxisVector_B_C.x() );
43 
44 extern const qreal RelMarkerLength = 0.03 * TriangleWidth;
45 extern const QPointF FullMarkerDistanceBC( RelMarkerLength * Norm_B_C );
46 extern const QPointF FullMarkerDistanceAC( -RelMarkerLength * Norm_C_A );
47 extern const QPointF FullMarkerDistanceBA( RelMarkerLength * Norm_B_A );
48 

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