SplineSeries QML Type

Presents data as spline charts. 更多...

Import Statement:	import QtCharts 2.2
Instantiates:	QSplineSeries
基类:	XYSeries

所有的成员列表, 包括继承的成员

属性

capStyle : Qt::PenCapStyle
count : int
style : Qt::PenStyle
width : real

详细描述

A spline series stores the data points and the segment control points needed by QPainterPath to draw a spline. The control points are automatically calculated when the data changes. The algorithm computes the points so that the normal spline can be drawn.

The following QML code shows how to create a simple spline chart:


  ChartView {
      title: "Spline"
      anchors.fill: parent
      antialiasing: true

      SplineSeries {
          name: "SplineSeries"
          XYPoint { x: 0; y: 0.0 }
          XYPoint { x: 1.1; y: 3.2 }
          XYPoint { x: 1.9; y: 2.4 }
          XYPoint { x: 2.1; y: 2.1 }
          XYPoint { x: 2.9; y: 2.6 }
          XYPoint { x: 3.4; y: 2.3 }
          XYPoint { x: 4.1; y: 3.1 }
      }
  }

属性

capStyle : Qt::PenCapStyle

Controls the cap style of the line. Set to one of Qt.FlatCap, Qt.SquareCap or Qt.RoundCap. By default, the cap style is Qt.SquareCap.

参见 Qt::PenCapStyle.

count : int

The number of data points in the series.

style : Qt::PenStyle

Controls the style of the line. Set to one of Qt.NoPen, Qt.SolidLine, Qt.DashLine, Qt.DotLine, Qt.DashDotLine, or Qt.DashDotDotLine. Using Qt.CustomDashLine is not supported in the QML API. By default, the style is Qt.SolidLine.

参见 Qt::PenStyle.

width : real

The width of the line. By default, the width is 2.0.

目录

SplineSeries QML Type

属性

详细描述

属性