Contents

LineChart QML Type

A line chart. More...

Import Statement: import org.kde.quickcharts
Inherits:

XYChart

Properties

Attached Properties

Detailed Description

Usage example

import QtQuick
import QtQuick.Controls

import org.kde.quickcharts as Charts

Charts.LineChart {
    width: 400
    height: 300

    valueSources: [
        Charts.ModelSource { roleName: "value1"; model: listModel },
        Charts.ModelSource { roleName: "value2"; model: listModel },
        Charts.ModelSource { roleName: "value3"; model: listModel }
    ]
    colorSource: Charts.ArraySource { array: ["red", "green", "blue"] }
    nameSource: Charts.ArraySource { array: ["Example 1", "Example 2", "Example 3"]}

    ListModel {
        id: listModel

        ListElement { value1: 19; value2: 2; value3: 6 }
        ListElement { value1: 14; value2: 20; value3: 17 }
        ListElement { value1: 4; value2: 10; value3: 11 }
        ListElement { value1: 5; value2: 11; value3: 9 }
        ListElement { value1: 20; value2: 7; value3: 13 }
    }
}

The resulting line chart.

Property Documentation

fillColorSource : ChartDataSource

A data source that supplies color values for the line charts' fill area.

If this is not set (the default), the normal color source will be used, with the fillOpacity used as its opacity.


fillOpacity : real

The opacity of the area below a line.

The default is 0.0. Note that if fillColorSource is set, this value is ignored.


interpolate : bool

Interpolate the values in the chart so that the lines become smoothed.


lineWidth : real

The width of a line in the chart.


pointDelegate : Component

A delegate that will be placed at each line chart point.

When this is not null, the specified component will be used to instantiate an object for each point in the chart. These objects will then be placed centered at positions corresponding to the points on the chart. Each instance will have access to the attached properties of LineChartAttached through LineChart attached object.

Note: The component assigned to this property is expected to create a QQuickItem, since the created object needs to be positioned.


Attached Property Documentation

LineChart.color : color

The color at the current point.


LineChart.name : string

The name at the current point.


LineChart.shortName : string

The short name at the current point.


LineChart.value : var

The value at the current point.