1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
import QtQuick
import QtCharts
//![1]
PolarChartView {
id: root
title: "Historical Area Chart"
anchors.fill: parent
legend.visible: false
antialiasing: true
DateTimeAxis {
id: axis1
format: "yyyy MMM"
tickCount: 13
}
ValueAxis {
id: axis2
}
LineSeries {
id: lowerLine
axisAngular: axis1
axisRadial: axis2
// Please note that month in JavaScript months are zero based, so 2 means March
XYPoint { x: root.toMsecsSinceEpoch(new Date(1950, 0, 1)); y: 15 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1962, 4, 1)); y: 35 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1970, 0, 1)); y: 50 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1978, 2, 1)); y: 75 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1987, 11, 1)); y: 102 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1992, 1, 1)); y: 132 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1998, 7, 1)); y: 100 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(2002, 4, 1)); y: 120 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(2012, 8, 1)); y: 140 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(2013, 5, 1)); y: 150 }
}
LineSeries {
id: upperLine
axisAngular: axis1
axisRadial: axis2
// Please note that month in JavaScript months are zero based, so 2 means March
XYPoint { x: root.toMsecsSinceEpoch(new Date(1950, 0, 1)); y: 30 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1962, 4, 1)); y: 55 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1970, 0, 1)); y: 80 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1978, 2, 1)); y: 105 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1987, 11, 1)); y: 125 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1992, 1, 1)); y: 160 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(1998, 7, 1)); y: 140 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(2002, 4, 1)); y: 140 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(2012, 8, 1)); y: 170 }
XYPoint { x: root.toMsecsSinceEpoch(new Date(2013, 5, 1)); y: 200 }
}
AreaSeries {
axisAngular: axis1
axisRadial: axis2
lowerSeries: lowerLine
upperSeries: upperLine
}
// DateTimeAxis is based on QDateTimes so we must convert our JavaScript dates to
// milliseconds since epoch to make them match the DateTimeAxis values
function toMsecsSinceEpoch(date) {
var msecs = date.getTime();
return msecs;
}
}
//![1]
|
