ChartDirector 7.1 (.NET Edition)
Round Meters with Readout
Source Code Listing
using System;
using ChartDirector;
namespace CSharpChartExplorer
{
public class roundmeterreadout : DemoModule
{
//Name of demo module
public string getName() { return "Round Meters with Readout"; }
//Number of charts produced in this demo module
public int getNoOfCharts() { return 2; }
//Main code for creating charts
public void createChart(WinChartViewer viewer, int chartIndex)
{
// The value to display on the meter
double value = 54;
// The main color of the four meters in this example. The other colors and gradients are
// derived from the main color.
int[] colorList = {0x0033dd, 0xaaaa00};
int mainColor = colorList[chartIndex];
//
// In this example, we demonstrate how to parameterized by size, so that the chart size
// can be changed by changing just one variable.
//
int size = 300;
// The radius of the entire meter, which is size / 2, minus 2 pixels for margin
int outerRadius = size / 2 - 2;
// The radius of the meter scale
int scaleRadius = outerRadius * 92 / 100;
// The radius of the color scale
int colorScaleRadius = scaleRadius * 43 / 100;
// The width of the color scale
int colorScaleWidth = scaleRadius * 10 / 100;
// Major tick length
int tickLength = scaleRadius * 10 / 100;
// Major tick width
int tickWidth = scaleRadius * 1 / 100 + 1;
// Label font size
int fontSize = scaleRadius * 13 / 100;
// Radius of readout circle as a ratio to the scale radius
double readOutRadiusRatio = 0.333333333333;
// Readout font size
int readOutFontSize = scaleRadius * 24 / 100;
//
// Create an angular meter based on the above parameters
//
// Create an AngularMeter object of the specified size. In this demo, we use black
// (0x000000) as the background color. You can also use transparent or other colors.
AngularMeter m = new AngularMeter(size, size, 0x000000);
// Set the default text and line colors to white (0xffffff)
m.setColor(Chart.TextColor, 0xffffff);
m.setColor(Chart.LineColor, 0xffffff);
// Set meter center and scale radius, and set the scale angle from -180 to +90 degrees
m.setMeter(size / 2, size / 2, scaleRadius, -180, 90);
// Background gradient with the mainColor at the center and become darker near the
// border
double[] bgGradient = {0, mainColor, 0.5, m.adjustBrightness(mainColor, 0.75), 1,
m.adjustBrightness(mainColor, 0.15)};
// Fill the meter background with the background gradient
m.addRing(0, outerRadius, m.relativeRadialGradient(bgGradient, outerRadius * 0.66));
// Gradient for the neon backlight, with the main color at the scale radius fading to
// transparent
double[] neonGradient = {0.89, Chart.Transparent, 1, mainColor, 1.07, Chart.Transparent}
;
m.addRing(scaleRadius * 85 / 100, outerRadius, m.relativeRadialGradient(neonGradient));
// The neon ring at the scale radius with width equal to 1/80 of the scale radius,
// creating using a brighter version of the main color
m.addRing(scaleRadius, scaleRadius + scaleRadius / 80, m.adjustBrightness(mainColor, 2))
;
// Meter scale is 0 - 100, with major/minor/micro ticks every 10/5/1 units
m.setScale(0, 100, 10, 5, 1);
// Set the scale label style, tick length and tick width. The minor and micro tick
// lengths are 80% and 60% of the major tick length, and their widths are around half of
// the major tick width.
m.setLabelStyle("Arial Italic", fontSize);
m.setTickLength(-tickLength, -(tickLength * 80 / 100), -(tickLength * 60 / 100));
m.setLineWidth(0, tickWidth, (tickWidth + 1) / 2, (tickWidth + 1) / 2);
// Demostrate different types of color scales and putting them at different positions.
double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000};
if (chartIndex == 0) {
// Add the smooth color scale
m.addColorScale(smoothColorScale, colorScaleRadius, colorScaleWidth);
// Add a red (0xff0000) pointer
m.addPointer2(value, 0xff0000);
} else {
// Add the high color scale at the default position
m.addColorScale(highColorScale);
// Add a red (0xff0000) triangular pointer starting from 40% and ending at 60% of
// scale radius, with a width 6 times the default
m.addPointer2(value, 0xff0000, -1, Chart.TriangularPointer2, 0.4, 0.6, 6);
}
// Configure a large "pointer cap" to be used as the readout circle at the center. The
// cap border width is set to 1.5% of the scale radius. The cap color is darker version
// of the main color. The border color is a brighter version of the main color with 75%
// brightness gradient effect.
m.setCap2(Chart.Transparent, m.adjustBrightness(mainColor, 0.3), m.adjustBrightness(
mainColor, 1.5), 0.75, 0, readOutRadiusRatio, 0.015);
// Add value label at the center using a brighter version of the main color and Arial
// Italic font
m.addText(size / 2, size / 2, m.formatValue(value, "{value|0}"), "Arial Italic",
readOutFontSize, m.adjustBrightness(mainColor, 2.5), Chart.Center).setMargin(0);
// Add glare up to the scale radius
m.addGlare(scaleRadius);
// Output the chart
viewer.Chart = m;
}
}
}
Imports System
Imports Microsoft.VisualBasic
Imports ChartDirector
Public Class roundmeterreadout
Implements DemoModule
'Name of demo module
Public Function getName() As String Implements DemoModule.getName
Return "Round Meters with Readout"
End Function
'Number of charts produced in this demo module
Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts
Return 2
End Function
'Main code for creating charts
Public Sub createChart(viewer As WinChartViewer, chartIndex As Integer) _
Implements DemoModule.createChart
' The value to display on the meter
Dim value As Double = 54
' The main color of the four meters in this example. The other colors and gradients are
' derived from the main color.
Dim colorList() As Integer = {&H0033dd, &Haaaa00}
Dim mainColor As Integer = colorList(chartIndex)
'
' In this example, we demonstrate how to parameterized by size, so that the chart size can
' be changed by changing just one variable.
'
Dim size As Integer = 300
' The radius of the entire meter, which is size / 2, minus 2 pixels for margin
Dim outerRadius As Integer = size \ 2 - 2
' The radius of the meter scale
Dim scaleRadius As Integer = outerRadius * 92 \ 100
' The radius of the color scale
Dim colorScaleRadius As Integer = scaleRadius * 43 \ 100
' The width of the color scale
Dim colorScaleWidth As Integer = scaleRadius * 10 \ 100
' Major tick length
Dim tickLength As Integer = scaleRadius * 10 \ 100
' Major tick width
Dim tickWidth As Integer = scaleRadius * 1 \ 100 + 1
' Label font size
Dim fontSize As Integer = scaleRadius * 13 \ 100
' Radius of readout circle as a ratio to the scale radius
Dim readOutRadiusRatio As Double = 0.333333333333
' Readout font size
Dim readOutFontSize As Integer = scaleRadius * 24 \ 100
'
' Create an angular meter based on the above parameters
'
' Create an AngularMeter object of the specified size. In this demo, we use black (0x000000)
' as the background color. You can also use transparent or other colors.
Dim m As AngularMeter = New AngularMeter(size, size, &H000000)
' Set the default text and line colors to white (0xffffff)
m.setColor(Chart.TextColor, &Hffffff)
m.setColor(Chart.LineColor, &Hffffff)
' Set meter center and scale radius, and set the scale angle from -180 to +90 degrees
m.setMeter(size / 2, size / 2, scaleRadius, -180, 90)
' Background gradient with the mainColor at the center and become darker near the border
Dim bgGradient() As Double = {0, mainColor, 0.5, m.adjustBrightness(mainColor, 0.75), 1, _
m.adjustBrightness(mainColor, 0.15)}
' Fill the meter background with the background gradient
m.addRing(0, outerRadius, m.relativeRadialGradient(bgGradient, outerRadius * 0.66))
' Gradient for the neon backlight, with the main color at the scale radius fading to
' transparent
Dim neonGradient() As Double = {0.89, Chart.Transparent, 1, mainColor, 1.07, _
Chart.Transparent}
m.addRing(scaleRadius * 85 \ 100, outerRadius, m.relativeRadialGradient(neonGradient))
' The neon ring at the scale radius with width equal to 1/80 of the scale radius, creating
' using a brighter version of the main color
m.addRing(scaleRadius, scaleRadius + scaleRadius \ 80, m.adjustBrightness(mainColor, 2))
' Meter scale is 0 - 100, with major/minor/micro ticks every 10/5/1 units
m.setScale(0, 100, 10, 5, 1)
' Set the scale label style, tick length and tick width. The minor and micro tick lengths
' are 80% and 60% of the major tick length, and their widths are around half of the major
' tick width.
m.setLabelStyle("Arial Italic", fontSize)
m.setTickLength(-tickLength, -(tickLength * 80 \ 100), -(tickLength * 60 \ 100))
m.setLineWidth(0, tickWidth, (tickWidth + 1) \ 2, (tickWidth + 1) \ 2)
' Demostrate different types of color scales and putting them at different positions.
Dim smoothColorScale() As Double = {0, &H0000ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, _
100, &Hff0000}
Dim highColorScale() As Double = {70, Chart.Transparent, 100, &Hff0000}
If chartIndex = 0 Then
' Add the smooth color scale
m.addColorScale(smoothColorScale, colorScaleRadius, colorScaleWidth)
' Add a red (0xff0000) pointer
m.addPointer2(value, &Hff0000)
Else
' Add the high color scale at the default position
m.addColorScale(highColorScale)
' Add a red (0xff0000) triangular pointer starting from 40% and ending at 60% of scale
' radius, with a width 6 times the default
m.addPointer2(value, &Hff0000, -1, Chart.TriangularPointer2, 0.4, 0.6, 6)
End If
' Configure a large "pointer cap" to be used as the readout circle at the center. The cap
' border width is set to 1.5% of the scale radius. The cap color is darker version of the
' main color. The border color is a brighter version of the main color with 75% brightness
' gradient effect.
m.setCap2(Chart.Transparent, m.adjustBrightness(mainColor, 0.3), m.adjustBrightness( _
mainColor, 1.5), 0.75, 0, readOutRadiusRatio, 0.015)
' Add value label at the center using a brighter version of the main color and Arial Italic
' font
m.addText(size / 2, size / 2, m.formatValue(value, "{value|0}"), "Arial Italic", _
readOutFontSize, m.adjustBrightness(mainColor, 2.5), Chart.Center).setMargin(0)
' Add glare up to the scale radius
m.addGlare(scaleRadius)
' Output the chart
viewer.Chart = m
End Sub
End Class
using System;
using ChartDirector;
namespace CSharpWPFCharts
{
public class roundmeterreadout : DemoModule
{
//Name of demo module
public string getName() { return "Round Meters with Readout"; }
//Number of charts produced in this demo module
public int getNoOfCharts() { return 2; }
//Main code for creating charts
public void createChart(WPFChartViewer viewer, int chartIndex)
{
// The value to display on the meter
double value = 54;
// The main color of the four meters in this example. The other colors and gradients are
// derived from the main color.
int[] colorList = {0x0033dd, 0xaaaa00};
int mainColor = colorList[chartIndex];
//
// In this example, we demonstrate how to parameterized by size, so that the chart size
// can be changed by changing just one variable.
//
int size = 300;
// The radius of the entire meter, which is size / 2, minus 2 pixels for margin
int outerRadius = size / 2 - 2;
// The radius of the meter scale
int scaleRadius = outerRadius * 92 / 100;
// The radius of the color scale
int colorScaleRadius = scaleRadius * 43 / 100;
// The width of the color scale
int colorScaleWidth = scaleRadius * 10 / 100;
// Major tick length
int tickLength = scaleRadius * 10 / 100;
// Major tick width
int tickWidth = scaleRadius * 1 / 100 + 1;
// Label font size
int fontSize = scaleRadius * 13 / 100;
// Radius of readout circle as a ratio to the scale radius
double readOutRadiusRatio = 0.333333333333;
// Readout font size
int readOutFontSize = scaleRadius * 24 / 100;
//
// Create an angular meter based on the above parameters
//
// Create an AngularMeter object of the specified size. In this demo, we use black
// (0x000000) as the background color. You can also use transparent or other colors.
AngularMeter m = new AngularMeter(size, size, 0x000000);
// Set the default text and line colors to white (0xffffff)
m.setColor(Chart.TextColor, 0xffffff);
m.setColor(Chart.LineColor, 0xffffff);
// Set meter center and scale radius, and set the scale angle from -180 to +90 degrees
m.setMeter(size / 2, size / 2, scaleRadius, -180, 90);
// Background gradient with the mainColor at the center and become darker near the
// border
double[] bgGradient = {0, mainColor, 0.5, m.adjustBrightness(mainColor, 0.75), 1,
m.adjustBrightness(mainColor, 0.15)};
// Fill the meter background with the background gradient
m.addRing(0, outerRadius, m.relativeRadialGradient(bgGradient, outerRadius * 0.66));
// Gradient for the neon backlight, with the main color at the scale radius fading to
// transparent
double[] neonGradient = {0.89, Chart.Transparent, 1, mainColor, 1.07, Chart.Transparent}
;
m.addRing(scaleRadius * 85 / 100, outerRadius, m.relativeRadialGradient(neonGradient));
// The neon ring at the scale radius with width equal to 1/80 of the scale radius,
// creating using a brighter version of the main color
m.addRing(scaleRadius, scaleRadius + scaleRadius / 80, m.adjustBrightness(mainColor, 2))
;
// Meter scale is 0 - 100, with major/minor/micro ticks every 10/5/1 units
m.setScale(0, 100, 10, 5, 1);
// Set the scale label style, tick length and tick width. The minor and micro tick
// lengths are 80% and 60% of the major tick length, and their widths are around half of
// the major tick width.
m.setLabelStyle("Arial Italic", fontSize);
m.setTickLength(-tickLength, -(tickLength * 80 / 100), -(tickLength * 60 / 100));
m.setLineWidth(0, tickWidth, (tickWidth + 1) / 2, (tickWidth + 1) / 2);
// Demostrate different types of color scales and putting them at different positions.
double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000};
if (chartIndex == 0) {
// Add the smooth color scale
m.addColorScale(smoothColorScale, colorScaleRadius, colorScaleWidth);
// Add a red (0xff0000) pointer
m.addPointer2(value, 0xff0000);
} else {
// Add the high color scale at the default position
m.addColorScale(highColorScale);
// Add a red (0xff0000) triangular pointer starting from 40% and ending at 60% of
// scale radius, with a width 6 times the default
m.addPointer2(value, 0xff0000, -1, Chart.TriangularPointer2, 0.4, 0.6, 6);
}
// Configure a large "pointer cap" to be used as the readout circle at the center. The
// cap border width is set to 1.5% of the scale radius. The cap color is darker version
// of the main color. The border color is a brighter version of the main color with 75%
// brightness gradient effect.
m.setCap2(Chart.Transparent, m.adjustBrightness(mainColor, 0.3), m.adjustBrightness(
mainColor, 1.5), 0.75, 0, readOutRadiusRatio, 0.015);
// Add value label at the center using a brighter version of the main color and Arial
// Italic font
m.addText(size / 2, size / 2, m.formatValue(value, "{value|0}"), "Arial Italic",
readOutFontSize, m.adjustBrightness(mainColor, 2.5), Chart.Center).setMargin(0);
// Add glare up to the scale radius
m.addGlare(scaleRadius);
// Output the chart
viewer.Chart = m;
}
}
}
<%@ Page Language="C#" Debug="true" %>
<%@ Import Namespace="ChartDirector" %>
<%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %>
<!DOCTYPE html>
<script runat="server">
//
// Create chart
//
protected void createChart(WebChartViewer viewer, int chartIndex)
{
// The value to display on the meter
double value = 54;
// The main color of the four meters in this example. The other colors and gradients are derived
// from the main color.
int[] colorList = {0x0033dd, 0xaaaa00};
int mainColor = colorList[chartIndex];
//
// In this example, we demonstrate how to parameterized by size, so that the chart size can be
// changed by changing just one variable.
//
int size = 300;
// The radius of the entire meter, which is size / 2, minus 2 pixels for margin
int outerRadius = size / 2 - 2;
// The radius of the meter scale
int scaleRadius = outerRadius * 92 / 100;
// The radius of the color scale
int colorScaleRadius = scaleRadius * 43 / 100;
// The width of the color scale
int colorScaleWidth = scaleRadius * 10 / 100;
// Major tick length
int tickLength = scaleRadius * 10 / 100;
// Major tick width
int tickWidth = scaleRadius * 1 / 100 + 1;
// Label font size
int fontSize = scaleRadius * 13 / 100;
// Radius of readout circle as a ratio to the scale radius
double readOutRadiusRatio = 0.333333333333;
// Readout font size
int readOutFontSize = scaleRadius * 24 / 100;
//
// Create an angular meter based on the above parameters
//
// Create an AngularMeter object of the specified size. In this demo, we use black (0x000000) as
// the background color. You can also use transparent or other colors.
AngularMeter m = new AngularMeter(size, size, 0x000000);
// Set the default text and line colors to white (0xffffff)
m.setColor(Chart.TextColor, 0xffffff);
m.setColor(Chart.LineColor, 0xffffff);
// Set meter center and scale radius, and set the scale angle from -180 to +90 degrees
m.setMeter(size / 2, size / 2, scaleRadius, -180, 90);
// Background gradient with the mainColor at the center and become darker near the border
double[] bgGradient = {0, mainColor, 0.5, m.adjustBrightness(mainColor, 0.75), 1,
m.adjustBrightness(mainColor, 0.15)};
// Fill the meter background with the background gradient
m.addRing(0, outerRadius, m.relativeRadialGradient(bgGradient, outerRadius * 0.66));
// Gradient for the neon backlight, with the main color at the scale radius fading to
// transparent
double[] neonGradient = {0.89, Chart.Transparent, 1, mainColor, 1.07, Chart.Transparent};
m.addRing(scaleRadius * 85 / 100, outerRadius, m.relativeRadialGradient(neonGradient));
// The neon ring at the scale radius with width equal to 1/80 of the scale radius, creating
// using a brighter version of the main color
m.addRing(scaleRadius, scaleRadius + scaleRadius / 80, m.adjustBrightness(mainColor, 2));
// Meter scale is 0 - 100, with major/minor/micro ticks every 10/5/1 units
m.setScale(0, 100, 10, 5, 1);
// Set the scale label style, tick length and tick width. The minor and micro tick lengths are
// 80% and 60% of the major tick length, and their widths are around half of the major tick
// width.
m.setLabelStyle("Arial Italic", fontSize);
m.setTickLength(-tickLength, -(tickLength * 80 / 100), -(tickLength * 60 / 100));
m.setLineWidth(0, tickWidth, (tickWidth + 1) / 2, (tickWidth + 1) / 2);
// Demostrate different types of color scales and putting them at different positions.
double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000};
if (chartIndex == 0) {
// Add the smooth color scale
m.addColorScale(smoothColorScale, colorScaleRadius, colorScaleWidth);
// Add a red (0xff0000) pointer
m.addPointer2(value, 0xff0000);
} else {
// Add the high color scale at the default position
m.addColorScale(highColorScale);
// Add a red (0xff0000) triangular pointer starting from 40% and ending at 60% of scale
// radius, with a width 6 times the default
m.addPointer2(value, 0xff0000, -1, Chart.TriangularPointer2, 0.4, 0.6, 6);
}
// Configure a large "pointer cap" to be used as the readout circle at the center. The cap
// border width is set to 1.5% of the scale radius. The cap color is darker version of the main
// color. The border color is a brighter version of the main color with 75% brightness gradient
// effect.
m.setCap2(Chart.Transparent, m.adjustBrightness(mainColor, 0.3), m.adjustBrightness(mainColor,
1.5), 0.75, 0, readOutRadiusRatio, 0.015);
// Add value label at the center using a brighter version of the main color and Arial Italic
// font
m.addText(size / 2, size / 2, m.formatValue(value, "{value|0}"), "Arial Italic",
readOutFontSize, m.adjustBrightness(mainColor, 2.5), Chart.Center).setMargin(0);
// Add glare up to the scale radius
m.addGlare(scaleRadius);
// Output the chart
viewer.Image = m.makeWebImage(Chart.SVG);
}
//
// Page Load event handler
//
protected void Page_Load(object sender, EventArgs e)
{
createChart(WebChartViewer0, 0);
createChart(WebChartViewer1, 1);
}
</script>
<html>
<head>
<script type="text/javascript" src="cdjcv.js"></script>
</head>
<body>
<chart:WebChartViewer id="WebChartViewer0" runat="server" />
<chart:WebChartViewer id="WebChartViewer1" runat="server" />
</body>
</html>
<%@ Page Language="VB" Debug="true" %>
<%@ Import Namespace="ChartDirector" %>
<%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %>
<!DOCTYPE html>
<script runat="server">
'
' Create chart
'
Protected Sub createChart(viewer As WebChartViewer, chartIndex As Integer)
' The value to display on the meter
Dim value As Double = 54
' The main color of the four meters in this example. The other colors and gradients are derived
' from the main color.
Dim colorList() As Integer = {&H0033dd, &Haaaa00}
Dim mainColor As Integer = colorList(chartIndex)
'
' In this example, we demonstrate how to parameterized by size, so that the chart size can be
' changed by changing just one variable.
'
Dim size As Integer = 300
' The radius of the entire meter, which is size / 2, minus 2 pixels for margin
Dim outerRadius As Integer = size \ 2 - 2
' The radius of the meter scale
Dim scaleRadius As Integer = outerRadius * 92 \ 100
' The radius of the color scale
Dim colorScaleRadius As Integer = scaleRadius * 43 \ 100
' The width of the color scale
Dim colorScaleWidth As Integer = scaleRadius * 10 \ 100
' Major tick length
Dim tickLength As Integer = scaleRadius * 10 \ 100
' Major tick width
Dim tickWidth As Integer = scaleRadius * 1 \ 100 + 1
' Label font size
Dim fontSize As Integer = scaleRadius * 13 \ 100
' Radius of readout circle as a ratio to the scale radius
Dim readOutRadiusRatio As Double = 0.333333333333
' Readout font size
Dim readOutFontSize As Integer = scaleRadius * 24 \ 100
'
' Create an angular meter based on the above parameters
'
' Create an AngularMeter object of the specified size. In this demo, we use black (0x000000) as
' the background color. You can also use transparent or other colors.
Dim m As AngularMeter = New AngularMeter(size, size, &H000000)
' Set the default text and line colors to white (0xffffff)
m.setColor(Chart.TextColor, &Hffffff)
m.setColor(Chart.LineColor, &Hffffff)
' Set meter center and scale radius, and set the scale angle from -180 to +90 degrees
m.setMeter(size / 2, size / 2, scaleRadius, -180, 90)
' Background gradient with the mainColor at the center and become darker near the border
Dim bgGradient() As Double = {0, mainColor, 0.5, m.adjustBrightness(mainColor, 0.75), 1, _
m.adjustBrightness(mainColor, 0.15)}
' Fill the meter background with the background gradient
m.addRing(0, outerRadius, m.relativeRadialGradient(bgGradient, outerRadius * 0.66))
' Gradient for the neon backlight, with the main color at the scale radius fading to transparent
Dim neonGradient() As Double = {0.89, Chart.Transparent, 1, mainColor, 1.07, Chart.Transparent}
m.addRing(scaleRadius * 85 \ 100, outerRadius, m.relativeRadialGradient(neonGradient))
' The neon ring at the scale radius with width equal to 1/80 of the scale radius, creating using
' a brighter version of the main color
m.addRing(scaleRadius, scaleRadius + scaleRadius \ 80, m.adjustBrightness(mainColor, 2))
' Meter scale is 0 - 100, with major/minor/micro ticks every 10/5/1 units
m.setScale(0, 100, 10, 5, 1)
' Set the scale label style, tick length and tick width. The minor and micro tick lengths are
' 80% and 60% of the major tick length, and their widths are around half of the major tick
' width.
m.setLabelStyle("Arial Italic", fontSize)
m.setTickLength(-tickLength, -(tickLength * 80 \ 100), -(tickLength * 60 \ 100))
m.setLineWidth(0, tickWidth, (tickWidth + 1) \ 2, (tickWidth + 1) \ 2)
' Demostrate different types of color scales and putting them at different positions.
Dim smoothColorScale() As Double = {0, &H0000ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, _
100, &Hff0000}
Dim highColorScale() As Double = {70, Chart.Transparent, 100, &Hff0000}
If chartIndex = 0 Then
' Add the smooth color scale
m.addColorScale(smoothColorScale, colorScaleRadius, colorScaleWidth)
' Add a red (0xff0000) pointer
m.addPointer2(value, &Hff0000)
Else
' Add the high color scale at the default position
m.addColorScale(highColorScale)
' Add a red (0xff0000) triangular pointer starting from 40% and ending at 60% of scale
' radius, with a width 6 times the default
m.addPointer2(value, &Hff0000, -1, Chart.TriangularPointer2, 0.4, 0.6, 6)
End If
' Configure a large "pointer cap" to be used as the readout circle at the center. The cap border
' width is set to 1.5% of the scale radius. The cap color is darker version of the main color.
' The border color is a brighter version of the main color with 75% brightness gradient effect.
m.setCap2(Chart.Transparent, m.adjustBrightness(mainColor, 0.3), m.adjustBrightness(mainColor, _
1.5), 0.75, 0, readOutRadiusRatio, 0.015)
' Add value label at the center using a brighter version of the main color and Arial Italic font
m.addText(size / 2, size / 2, m.formatValue(value, "{value|0}"), "Arial Italic", _
readOutFontSize, m.adjustBrightness(mainColor, 2.5), Chart.Center).setMargin(0)
' Add glare up to the scale radius
m.addGlare(scaleRadius)
' Output the chart
viewer.Image = m.makeWebImage(Chart.SVG)
End Sub
'
' Page Load event handler
'
Protected Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
createChart(WebChartViewer0, 0)
createChart(WebChartViewer1, 1)
End Sub
</script>
<html>
<head>
<script type="text/javascript" src="cdjcv.js"></script>
</head>
<body>
<chart:WebChartViewer id="WebChartViewer0" runat="server" />
<chart:WebChartViewer id="WebChartViewer1" runat="server" />
</body>
</html>
using System;
using System.Web.Mvc;
using ChartDirector;
namespace NetMvcCharts.Controllers
{
public class RoundmeterreadoutController : Controller
{
//
// Default Action
//
public ActionResult Index()
{
ViewBag.Title = "Round Meters with Readout";
// This example contains 2 charts.
ViewBag.Viewer = new RazorChartViewer[2];
for (int i = 0; i < ViewBag.Viewer.Length; ++i)
createChart(ViewBag.Viewer[i] = new RazorChartViewer(HttpContext, "chart" + i), i);
return View("~/Views/Shared/ChartView.cshtml");
}
//
// Create chart
//
private void createChart(RazorChartViewer viewer, int chartIndex)
{
// The value to display on the meter
double value = 54;
// The main color of the four meters in this example. The other colors and gradients are
// derived from the main color.
int[] colorList = {0x0033dd, 0xaaaa00};
int mainColor = colorList[chartIndex];
//
// In this example, we demonstrate how to parameterized by size, so that the chart size can
// be changed by changing just one variable.
//
int size = 300;
// The radius of the entire meter, which is size / 2, minus 2 pixels for margin
int outerRadius = size / 2 - 2;
// The radius of the meter scale
int scaleRadius = outerRadius * 92 / 100;
// The radius of the color scale
int colorScaleRadius = scaleRadius * 43 / 100;
// The width of the color scale
int colorScaleWidth = scaleRadius * 10 / 100;
// Major tick length
int tickLength = scaleRadius * 10 / 100;
// Major tick width
int tickWidth = scaleRadius * 1 / 100 + 1;
// Label font size
int fontSize = scaleRadius * 13 / 100;
// Radius of readout circle as a ratio to the scale radius
double readOutRadiusRatio = 0.333333333333;
// Readout font size
int readOutFontSize = scaleRadius * 24 / 100;
//
// Create an angular meter based on the above parameters
//
// Create an AngularMeter object of the specified size. In this demo, we use black (0x000000)
// as the background color. You can also use transparent or other colors.
AngularMeter m = new AngularMeter(size, size, 0x000000);
// Set the default text and line colors to white (0xffffff)
m.setColor(Chart.TextColor, 0xffffff);
m.setColor(Chart.LineColor, 0xffffff);
// Set meter center and scale radius, and set the scale angle from -180 to +90 degrees
m.setMeter(size / 2, size / 2, scaleRadius, -180, 90);
// Background gradient with the mainColor at the center and become darker near the border
double[] bgGradient = {0, mainColor, 0.5, m.adjustBrightness(mainColor, 0.75), 1,
m.adjustBrightness(mainColor, 0.15)};
// Fill the meter background with the background gradient
m.addRing(0, outerRadius, m.relativeRadialGradient(bgGradient, outerRadius * 0.66));
// Gradient for the neon backlight, with the main color at the scale radius fading to
// transparent
double[] neonGradient = {0.89, Chart.Transparent, 1, mainColor, 1.07, Chart.Transparent};
m.addRing(scaleRadius * 85 / 100, outerRadius, m.relativeRadialGradient(neonGradient));
// The neon ring at the scale radius with width equal to 1/80 of the scale radius, creating
// using a brighter version of the main color
m.addRing(scaleRadius, scaleRadius + scaleRadius / 80, m.adjustBrightness(mainColor, 2));
// Meter scale is 0 - 100, with major/minor/micro ticks every 10/5/1 units
m.setScale(0, 100, 10, 5, 1);
// Set the scale label style, tick length and tick width. The minor and micro tick lengths
// are 80% and 60% of the major tick length, and their widths are around half of the major
// tick width.
m.setLabelStyle("Arial Italic", fontSize);
m.setTickLength(-tickLength, -(tickLength * 80 / 100), -(tickLength * 60 / 100));
m.setLineWidth(0, tickWidth, (tickWidth + 1) / 2, (tickWidth + 1) / 2);
// Demostrate different types of color scales and putting them at different positions.
double[] smoothColorScale = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
double[] highColorScale = {70, Chart.Transparent, 100, 0xff0000};
if (chartIndex == 0) {
// Add the smooth color scale
m.addColorScale(smoothColorScale, colorScaleRadius, colorScaleWidth);
// Add a red (0xff0000) pointer
m.addPointer2(value, 0xff0000);
} else {
// Add the high color scale at the default position
m.addColorScale(highColorScale);
// Add a red (0xff0000) triangular pointer starting from 40% and ending at 60% of scale
// radius, with a width 6 times the default
m.addPointer2(value, 0xff0000, -1, Chart.TriangularPointer2, 0.4, 0.6, 6);
}
// Configure a large "pointer cap" to be used as the readout circle at the center. The cap
// border width is set to 1.5% of the scale radius. The cap color is darker version of the
// main color. The border color is a brighter version of the main color with 75% brightness
// gradient effect.
m.setCap2(Chart.Transparent, m.adjustBrightness(mainColor, 0.3), m.adjustBrightness(
mainColor, 1.5), 0.75, 0, readOutRadiusRatio, 0.015);
// Add value label at the center using a brighter version of the main color and Arial Italic
// font
m.addText(size / 2, size / 2, m.formatValue(value, "{value|0}"), "Arial Italic",
readOutFontSize, m.adjustBrightness(mainColor, 2.5), Chart.Center).setMargin(0);
// Add glare up to the scale radius
m.addGlare(scaleRadius);
// Output the chart
viewer.Image = m.makeWebImage(Chart.SVG);
}
}
}
@{ Layout = null; }
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>@ViewBag.Title</title>
<style>
@ViewBag.Style
</style>
@Scripts.Render("~/Scripts/cdjcv.js")
</head>
<body style="margin:5px 0px 0px 5px">
<div style="font:bold 18pt verdana;">
@ViewBag.Title
</div>
<hr style="border:solid 1px #000080; background:#000080" />
<div>
@{
if (ViewBag.Viewer is Array)
{
// Display multiple charts
for (int i = 0; i < ViewBag.Viewer.Length; ++i)
{
@:@Html.Raw(ViewBag.Viewer[i].RenderHTML())
}
}
else
{
// Display one chart only
@:@Html.Raw(ViewBag.Viewer.RenderHTML())
}
}
</div>
</body>
</html>