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29 
30 #include "surfacegraph.h"
31 #include "topographicseries.h"
32 
33 #include <QtDataVisualization/QValue3DAxis>
34 #include <QtDataVisualization/Q3DTheme>
35 
36 using namespace QtDataVisualization;
37 
38 const float areaWidth = 8000.0f;
39 const float areaHeight = 8000.0f;
40 const float aspectRatio = 0.1389f;
41 const float minRange = areaWidth * 0.49f;
42 
SurfaceGraph(Q3DSurface * surface)43 SurfaceGraph::SurfaceGraph(Q3DSurface *surface)
44     : m_graph(surface)
45 {
46     m_graph->setAxisX(new QValue3DAxis);
47     m_graph->setAxisY(new QValue3DAxis);
48     m_graph->setAxisZ(new QValue3DAxis);
49     m_graph->axisX()->setLabelFormat("%i");
50     m_graph->axisZ()->setLabelFormat("%i");
51     m_graph->axisX()->setRange(0.0f, areaWidth);
52     m_graph->axisY()->setRange(100.0f, areaWidth * aspectRatio);
53     m_graph->axisZ()->setRange(0.0f, areaHeight);
54     m_graph->axisX()->setLabelAutoRotation(30);
55     m_graph->axisY()->setLabelAutoRotation(90);
56     m_graph->axisZ()->setLabelAutoRotation(30);
57     m_graph->activeTheme()->setType(Q3DTheme::ThemePrimaryColors);
58 
59     QFont font = m_graph->activeTheme()->font();
60     font.setPointSize(20);
61     m_graph->activeTheme()->setFont(font);
62 
63     m_topography = new TopographicSeries();
64     m_topography->setTopographyFile(":/maps/topography", areaWidth, areaHeight);
65     m_topography->setItemLabelFormat(QStringLiteral("@yLabel m"));
66 
67     m_highlight = new HighlightSeries();
68     m_highlight->setTopographicSeries(m_topography);
69     m_highlight->setMinHeight(minRange * aspectRatio);
70     m_highlight->handleGradientChange(areaWidth * aspectRatio);
71 //! [1]
72     QObject::connect(m_graph->axisY(), &QValue3DAxis::maxChanged,
73                      m_highlight, &HighlightSeries::handleGradientChange);
74 //! [1]
75 
76     m_graph->addSeries(m_topography);
77     m_graph->addSeries(m_highlight);
78 
79     m_inputHandler = new CustomInputHandler(m_graph);
80     m_inputHandler->setHighlightSeries(m_highlight);
81     m_inputHandler->setAxes(m_graph->axisX(), m_graph->axisY(), m_graph->axisZ());
82     m_inputHandler->setLimits(0.0f, areaWidth, minRange);
83     m_inputHandler->setAspectRatio(aspectRatio);
84 
85     m_graph->setActiveInputHandler(m_inputHandler);
86 }
87 
~SurfaceGraph()88 SurfaceGraph::~SurfaceGraph()
89 {
90     delete m_graph;
91 }
92 
93 //! [0]
toggleSurfaceTexture(bool enable)94 void SurfaceGraph::toggleSurfaceTexture(bool enable)
95 {
96     if (enable)
97         m_topography->setTextureFile(":/maps/maptexture");
98     else
99         m_topography->setTextureFile("");
100 }
101 //! [0]
102