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
|
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import Graph
Item {
width: 800
height: 400
Graph {
id: graph
anchors.fill: parent
anchors.margins: 100
function newSample(i) {
return (Math.sin(i / 100.0 * Math.PI * 2) + 1) * 0.4 + Math.random() * 0.05;
}
Component.onCompleted: {
for (var i=0; i<100; ++i)
appendSample(newSample(i));
}
property int offset: 100;
}
Timer {
id: timer
interval: 500
repeat: true
running: true
onTriggered: {
graph.removeFirstSample();
graph.appendSample(graph.newSample(++graph.offset));
}
}
Rectangle {
anchors.fill: graph
color: "transparent"
border.color: "black"
border.width: 2
}
}
|
