1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
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17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 or (at your option) any later version |
20 | ** approved by the KDE Free Qt Foundation. The licenses are as published by |
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27 | ** |
28 | ****************************************************************************/ |
29 | |
30 | #include "datagenerator.h" |
31 | #include <QDebug> |
32 | #include <QRandomGenerator> |
33 | |
34 | using namespace QtDataVisualization; |
35 | |
36 | Q_DECLARE_METATYPE(QScatter3DSeries *) |
37 | |
38 | DataGenerator::DataGenerator(QObject *parent) : |
39 | QObject(parent) |
40 | { |
41 | qRegisterMetaType<QScatter3DSeries *>(); |
42 | |
43 | m_file = new QFile("results.txt" ); |
44 | if (!m_file->open(flags: QIODevice::WriteOnly | QIODevice::Text)) { |
45 | delete m_file; |
46 | m_file = 0; |
47 | } |
48 | } |
49 | |
50 | DataGenerator::~DataGenerator() |
51 | { |
52 | m_file->close(); |
53 | delete m_file; |
54 | } |
55 | |
56 | void DataGenerator::generateData(QScatter3DSeries *series, uint count) |
57 | { |
58 | QScatterDataArray *dataArray = new QScatterDataArray; |
59 | dataArray->resize(asize: count); |
60 | QScatterDataItem *ptrToDataArray = &dataArray->first(); |
61 | |
62 | for (uint i = 0; i < count; i++) { |
63 | ptrToDataArray->setPosition(QVector3D(QRandomGenerator::global()->generateDouble(), |
64 | QRandomGenerator::global()->generateDouble(), |
65 | QRandomGenerator::global()->generateDouble())); |
66 | ptrToDataArray++; |
67 | } |
68 | |
69 | series->dataProxy()->resetArray(newArray: dataArray); |
70 | } |
71 | |
72 | void DataGenerator::add(QScatter3DSeries *series, uint count) |
73 | { |
74 | QScatterDataArray appendArray; |
75 | appendArray.resize(asize: count); |
76 | |
77 | for (uint i = 0; i < count; i++) { |
78 | appendArray[i].setPosition(QVector3D(QRandomGenerator::global()->generateDouble(), |
79 | QRandomGenerator::global()->generateDouble(), |
80 | QRandomGenerator::global()->generateDouble())); |
81 | } |
82 | |
83 | series->dataProxy()->addItems(items: appendArray); |
84 | } |
85 | |
86 | void DataGenerator::writeLine(int itemCount, float fps) |
87 | { |
88 | if (m_file) { |
89 | QTextStream out(m_file); |
90 | |
91 | QString fpsFormatString(QStringLiteral("%1 %2\n" )); |
92 | QString fpsString = fpsFormatString.arg(a: itemCount).arg(a: fps); |
93 | |
94 | out << fpsString; |
95 | } |
96 | } |
97 | |