ISpeedometerBars.Item

Syntax

Item(Index: Integer): ISpeedometerBar;

Parameters

Index - index of the segment, which parameters must be obtained.

Description

The Item property returns parameters of the segment, which index is passed by the Index parameter.

Example

Executing the example requires a form with the Button1 button and the SpeedometerBox component named SpeedometerBox1.

Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);

Var

s: ISpeedometer;

v: ISpeedometerView;

ScaleView: ISpeedometerScaleView;

FilledBar: ISpeedometerFilledBar;

Bar, Bar1: ISpeedometerBar;

Begin

s := SpeedometerBox1.Speedometer;

v := s.View;

s.BeginUpdate;

ScaleView := s.View.ScaleViews.Item(0);

FilledBar := ScaleView.FilledBar;

FilledBar.StartRadius := 0.1;

FilledBar.EndRadius := 0.9;

FilledBar.Bars.Count := 2;

Bar := FilledBar.Bars.Item(0);

Bar1 := FilledBar.Bars.Item(1);

Bar.StartColor := GxColor.FromName("Blue");

Bar.EndColor := GxColor.FromName("Green");

Bar.Part := 0.7;

Bar1.StartColor := GxColor.FromName("Green");

Bar1.EndColor := GxColor.FromName("Red");

Bar1.Part := 0.3;

s.EndUpdate;

End Sub Button1OnClick;

After executing the example, on clicking the button, the formatting of speedometer color interval bar displayed in the SpeedometerBox1 component is changed. The interval bar is divided into two segments. Start and end color of gradient are determined for every segment. The first segment takes 70%, the second one - 30% of interval bar. Initial and final bar radii are set to 0.1 and 0.9 respectively.