ChartDirector 7.1 (.NET Edition)

White Semicircle Meters


          

This example demonstrates semicircle meters with a soft white background and a silver border.

The white background in this example is actually a radial gradient. It is fully white at the center, changing to light grey at the border. This creates a "softer" white effect. The radial gradient is created using AngularMeter.relativeRadialGradient.

The silver border effect is achieved by using AngularMeter.relativeLinearGradient to create a gradient consisting of varying levels of grey.

The soft white gradient and the silver gradient are applied to the meter background and border using AngularMeter.addScaleBackground.

Because the background and border color are similar, to make the border easier to distinguish from the background, the AngularMeter.addScaleBackground is called one more time to add a 1-pixel grey boundary between the border and the background.

Source Code Listing

[Windows Forms - C# version] NetWinCharts\CSharpWinCharts\whitesemicirclemeter.cs
using System; using ChartDirector; namespace CSharpChartExplorer { public class whitesemicirclemeter : DemoModule { //Name of demo module public string getName() { return "White Semicircle Meters"; } //Number of charts produced in this demo module public int getNoOfCharts() { return 6; } //Main code for creating charts public void createChart(WinChartViewer viewer, int chartIndex) { // The value to display on the meter double value = 72.55; // Create an AngularMeter object of size 300 x 180 pixels with transparent background AngularMeter m = new AngularMeter(300, 180, Chart.Transparent); // Set the default text and line colors to very dark grey (0x222222) m.setColor(Chart.TextColor, 0x222222); m.setColor(Chart.LineColor, 0x222222); // Center at (150, 150), scale radius = 128 pixels, scale angle -90 to +90 degrees m.setMeter(150, 150, 128, -90, 90); // Gradient color for the border to make it silver-like double[] ringGradient = {1, 0x999999, 0.5, 0xdddddd, 0, 0xf8f8f8, -0.5, 0xdddddd, -1, 0x999999}; // Background gradient color from white (0xffffff) at the center to light grey // (0xdddddd) at the border double[] bgGradient = {0, 0xffffff, 0.75, 0xeeeeee, 1, 0xdddddd}; // Add a scale background of 148 pixels radius using the gradient background, with a 10 // pixel thick silver border m.addScaleBackground(148, m.relativeRadialGradient(bgGradient, 148), 10, m.relativeLinearGradient(ringGradient, 45, 148)); // Add a 1 pixel light grey (0xbbbbbb) line at the inner edge of the thick silver border // (radius = 138) to enhance its contrast with the background gradient m.addScaleBackground(138, Chart.Transparent, 1, 0xbbbbbb); // Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, // and micro tick every 5 units m.setScale(0, 100, 20, 10, 5); // Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick // lengths to 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels. m.setLabelStyle("Arial Italic", 16); m.setTickLength(-16, -16, -10); m.setLineWidth(0, 2, 1, 1); // Demostrate different types of color scales and putting them at different positions double[] smoothColorScale = {0, 0x3333ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00cc00, 60, 0xffdd00, 80, 0xee0000, 100}; double[] highLowColorScale = {0, 0x00ff00, 70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add the smooth color scale at the default position m.addColorScale(smoothColorScale); } else if (chartIndex == 1) { // Add the smooth color scale starting at radius 128 with zero width and ending at // radius 128 with 16 pixels inner width m.addColorScale(smoothColorScale, 128, 0, 128, -16); } else if (chartIndex == 2) { // Add the smooth color scale starting at radius 70 with zero width and ending at // radius 60 with 20 pixels outer width m.addColorScale(smoothColorScale, 70, 0, 60, 20); } else if (chartIndex == 3) { // Add the high/low color scale at the default position m.addColorScale(highLowColorScale); } else if (chartIndex == 4) { // Add the step color scale at the default position m.addColorScale(stepColorScale); } else { // Add the smooth color scale at radius 60 with 15 pixels outer width m.addColorScale(smoothColorScale, 60, 15); } // Add a text label centered at (150, 125) with 15pt Arial Italic font m.addText(150, 125, "CPU", "Arial Italic", 15, Chart.TextColor, Chart.BottomCenter); // Add a red (0xff0000) pointer at the specified value m.addPointer2(value, 0xff0000); // Output the chart viewer.Chart = m; } } }

[Windows Forms - VB Version] NetWinCharts\VBNetWinCharts\whitesemicirclemeter.vb
Imports System Imports Microsoft.VisualBasic Imports ChartDirector Public Class whitesemicirclemeter Implements DemoModule 'Name of demo module Public Function getName() As String Implements DemoModule.getName Return "White Semicircle Meters" End Function 'Number of charts produced in this demo module Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts Return 6 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 = 72.55 ' Create an AngularMeter object of size 300 x 180 pixels with transparent background Dim m As AngularMeter = New AngularMeter(300, 180, Chart.Transparent) ' Set the default text and line colors to very dark grey (0x222222) m.setColor(Chart.TextColor, &H222222) m.setColor(Chart.LineColor, &H222222) ' Center at (150, 150), scale radius = 128 pixels, scale angle -90 to +90 degrees m.setMeter(150, 150, 128, -90, 90) ' Gradient color for the border to make it silver-like Dim ringGradient() As Double = {1, &H999999, 0.5, &Hdddddd, 0, &Hf8f8f8, -0.5, &Hdddddd, _ -1, &H999999} ' Background gradient color from white (0xffffff) at the center to light grey (0xdddddd) at ' the border Dim bgGradient() As Double = {0, &Hffffff, 0.75, &Heeeeee, 1, &Hdddddd} ' Add a scale background of 148 pixels radius using the gradient background, with a 10 pixel ' thick silver border m.addScaleBackground(148, m.relativeRadialGradient(bgGradient, 148), 10, _ m.relativeLinearGradient(ringGradient, 45, 148)) ' Add a 1 pixel light grey (0xbbbbbb) line at the inner edge of the thick silver border ' (radius = 138) to enhance its contrast with the background gradient m.addScaleBackground(138, Chart.Transparent, 1, &Hbbbbbb) ' Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, and ' micro tick every 5 units m.setScale(0, 100, 20, 10, 5) ' Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick lengths to ' 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels. m.setLabelStyle("Arial Italic", 16) m.setTickLength(-16, -16, -10) m.setLineWidth(0, 2, 1, 1) ' Demostrate different types of color scales and putting them at different positions Dim smoothColorScale() As Double = {0, &H3333ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, _ 100, &Hff0000} Dim stepColorScale() As Double = {0, &H00cc00, 60, &Hffdd00, 80, &Hee0000, 100} Dim highLowColorScale() As Double = {0, &H00ff00, 70, Chart.Transparent, 100, &Hff0000} If chartIndex = 0 Then ' Add the smooth color scale at the default position m.addColorScale(smoothColorScale) ElseIf chartIndex = 1 Then ' Add the smooth color scale starting at radius 128 with zero width and ending at radius ' 128 with 16 pixels inner width m.addColorScale(smoothColorScale, 128, 0, 128, -16) ElseIf chartIndex = 2 Then ' Add the smooth color scale starting at radius 70 with zero width and ending at radius ' 60 with 20 pixels outer width m.addColorScale(smoothColorScale, 70, 0, 60, 20) ElseIf chartIndex = 3 Then ' Add the high/low color scale at the default position m.addColorScale(highLowColorScale) ElseIf chartIndex = 4 Then ' Add the step color scale at the default position m.addColorScale(stepColorScale) Else ' Add the smooth color scale at radius 60 with 15 pixels outer width m.addColorScale(smoothColorScale, 60, 15) End If ' Add a text label centered at (150, 125) with 15pt Arial Italic font m.addText(150, 125, "CPU", "Arial Italic", 15, Chart.TextColor, Chart.BottomCenter) ' Add a red (0xff0000) pointer at the specified value m.addPointer2(value, &Hff0000) ' Output the chart viewer.Chart = m End Sub End Class

[WPF - C#] NetWPFCharts\CSharpWPFCharts\whitesemicirclemeter.cs
using System; using ChartDirector; namespace CSharpWPFCharts { public class whitesemicirclemeter : DemoModule { //Name of demo module public string getName() { return "White Semicircle Meters"; } //Number of charts produced in this demo module public int getNoOfCharts() { return 6; } //Main code for creating charts public void createChart(WPFChartViewer viewer, int chartIndex) { // The value to display on the meter double value = 72.55; // Create an AngularMeter object of size 300 x 180 pixels with transparent background AngularMeter m = new AngularMeter(300, 180, Chart.Transparent); // Set the default text and line colors to very dark grey (0x222222) m.setColor(Chart.TextColor, 0x222222); m.setColor(Chart.LineColor, 0x222222); // Center at (150, 150), scale radius = 128 pixels, scale angle -90 to +90 degrees m.setMeter(150, 150, 128, -90, 90); // Gradient color for the border to make it silver-like double[] ringGradient = {1, 0x999999, 0.5, 0xdddddd, 0, 0xf8f8f8, -0.5, 0xdddddd, -1, 0x999999}; // Background gradient color from white (0xffffff) at the center to light grey // (0xdddddd) at the border double[] bgGradient = {0, 0xffffff, 0.75, 0xeeeeee, 1, 0xdddddd}; // Add a scale background of 148 pixels radius using the gradient background, with a 10 // pixel thick silver border m.addScaleBackground(148, m.relativeRadialGradient(bgGradient, 148), 10, m.relativeLinearGradient(ringGradient, 45, 148)); // Add a 1 pixel light grey (0xbbbbbb) line at the inner edge of the thick silver border // (radius = 138) to enhance its contrast with the background gradient m.addScaleBackground(138, Chart.Transparent, 1, 0xbbbbbb); // Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, // and micro tick every 5 units m.setScale(0, 100, 20, 10, 5); // Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick // lengths to 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels. m.setLabelStyle("Arial Italic", 16); m.setTickLength(-16, -16, -10); m.setLineWidth(0, 2, 1, 1); // Demostrate different types of color scales and putting them at different positions double[] smoothColorScale = {0, 0x3333ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00cc00, 60, 0xffdd00, 80, 0xee0000, 100}; double[] highLowColorScale = {0, 0x00ff00, 70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add the smooth color scale at the default position m.addColorScale(smoothColorScale); } else if (chartIndex == 1) { // Add the smooth color scale starting at radius 128 with zero width and ending at // radius 128 with 16 pixels inner width m.addColorScale(smoothColorScale, 128, 0, 128, -16); } else if (chartIndex == 2) { // Add the smooth color scale starting at radius 70 with zero width and ending at // radius 60 with 20 pixels outer width m.addColorScale(smoothColorScale, 70, 0, 60, 20); } else if (chartIndex == 3) { // Add the high/low color scale at the default position m.addColorScale(highLowColorScale); } else if (chartIndex == 4) { // Add the step color scale at the default position m.addColorScale(stepColorScale); } else { // Add the smooth color scale at radius 60 with 15 pixels outer width m.addColorScale(smoothColorScale, 60, 15); } // Add a text label centered at (150, 125) with 15pt Arial Italic font m.addText(150, 125, "CPU", "Arial Italic", 15, Chart.TextColor, Chart.BottomCenter); // Add a red (0xff0000) pointer at the specified value m.addPointer2(value, 0xff0000); // Output the chart viewer.Chart = m; } } }

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\whitesemicirclemeter.aspx
(Click here on how to convert this code to code-behind style.)
<%@ 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 = 72.55; // Create an AngularMeter object of size 300 x 180 pixels with transparent background AngularMeter m = new AngularMeter(300, 180, Chart.Transparent); // Set the default text and line colors to very dark grey (0x222222) m.setColor(Chart.TextColor, 0x222222); m.setColor(Chart.LineColor, 0x222222); // Center at (150, 150), scale radius = 128 pixels, scale angle -90 to +90 degrees m.setMeter(150, 150, 128, -90, 90); // Gradient color for the border to make it silver-like double[] ringGradient = {1, 0x999999, 0.5, 0xdddddd, 0, 0xf8f8f8, -0.5, 0xdddddd, -1, 0x999999}; // Background gradient color from white (0xffffff) at the center to light grey (0xdddddd) at the // border double[] bgGradient = {0, 0xffffff, 0.75, 0xeeeeee, 1, 0xdddddd}; // Add a scale background of 148 pixels radius using the gradient background, with a 10 pixel // thick silver border m.addScaleBackground(148, m.relativeRadialGradient(bgGradient, 148), 10, m.relativeLinearGradient(ringGradient, 45, 148)); // Add a 1 pixel light grey (0xbbbbbb) line at the inner edge of the thick silver border (radius // = 138) to enhance its contrast with the background gradient m.addScaleBackground(138, Chart.Transparent, 1, 0xbbbbbb); // Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, and micro // tick every 5 units m.setScale(0, 100, 20, 10, 5); // Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick lengths to // 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels. m.setLabelStyle("Arial Italic", 16); m.setTickLength(-16, -16, -10); m.setLineWidth(0, 2, 1, 1); // Demostrate different types of color scales and putting them at different positions double[] smoothColorScale = {0, 0x3333ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00cc00, 60, 0xffdd00, 80, 0xee0000, 100}; double[] highLowColorScale = {0, 0x00ff00, 70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add the smooth color scale at the default position m.addColorScale(smoothColorScale); } else if (chartIndex == 1) { // Add the smooth color scale starting at radius 128 with zero width and ending at radius // 128 with 16 pixels inner width m.addColorScale(smoothColorScale, 128, 0, 128, -16); } else if (chartIndex == 2) { // Add the smooth color scale starting at radius 70 with zero width and ending at radius 60 // with 20 pixels outer width m.addColorScale(smoothColorScale, 70, 0, 60, 20); } else if (chartIndex == 3) { // Add the high/low color scale at the default position m.addColorScale(highLowColorScale); } else if (chartIndex == 4) { // Add the step color scale at the default position m.addColorScale(stepColorScale); } else { // Add the smooth color scale at radius 60 with 15 pixels outer width m.addColorScale(smoothColorScale, 60, 15); } // Add a text label centered at (150, 125) with 15pt Arial Italic font m.addText(150, 125, "CPU", "Arial Italic", 15, Chart.TextColor, Chart.BottomCenter); // Add a red (0xff0000) pointer at the specified value m.addPointer2(value, 0xff0000); // 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); createChart(WebChartViewer2, 2); createChart(WebChartViewer3, 3); createChart(WebChartViewer4, 4); createChart(WebChartViewer5, 5); } </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" /> <chart:WebChartViewer id="WebChartViewer2" runat="server" /> <chart:WebChartViewer id="WebChartViewer3" runat="server" /> <chart:WebChartViewer id="WebChartViewer4" runat="server" /> <chart:WebChartViewer id="WebChartViewer5" runat="server" /> </body> </html>

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\whitesemicirclemeter.aspx
(Click here on how to convert this code to code-behind style.)
<%@ 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 = 72.55 ' Create an AngularMeter object of size 300 x 180 pixels with transparent background Dim m As AngularMeter = New AngularMeter(300, 180, Chart.Transparent) ' Set the default text and line colors to very dark grey (0x222222) m.setColor(Chart.TextColor, &H222222) m.setColor(Chart.LineColor, &H222222) ' Center at (150, 150), scale radius = 128 pixels, scale angle -90 to +90 degrees m.setMeter(150, 150, 128, -90, 90) ' Gradient color for the border to make it silver-like Dim ringGradient() As Double = {1, &H999999, 0.5, &Hdddddd, 0, &Hf8f8f8, -0.5, &Hdddddd, -1, _ &H999999} ' Background gradient color from white (0xffffff) at the center to light grey (0xdddddd) at the ' border Dim bgGradient() As Double = {0, &Hffffff, 0.75, &Heeeeee, 1, &Hdddddd} ' Add a scale background of 148 pixels radius using the gradient background, with a 10 pixel ' thick silver border m.addScaleBackground(148, m.relativeRadialGradient(bgGradient, 148), 10, _ m.relativeLinearGradient(ringGradient, 45, 148)) ' Add a 1 pixel light grey (0xbbbbbb) line at the inner edge of the thick silver border (radius ' = 138) to enhance its contrast with the background gradient m.addScaleBackground(138, Chart.Transparent, 1, &Hbbbbbb) ' Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, and micro ' tick every 5 units m.setScale(0, 100, 20, 10, 5) ' Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick lengths to ' 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels. m.setLabelStyle("Arial Italic", 16) m.setTickLength(-16, -16, -10) m.setLineWidth(0, 2, 1, 1) ' Demostrate different types of color scales and putting them at different positions Dim smoothColorScale() As Double = {0, &H3333ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, _ 100, &Hff0000} Dim stepColorScale() As Double = {0, &H00cc00, 60, &Hffdd00, 80, &Hee0000, 100} Dim highLowColorScale() As Double = {0, &H00ff00, 70, Chart.Transparent, 100, &Hff0000} If chartIndex = 0 Then ' Add the smooth color scale at the default position m.addColorScale(smoothColorScale) ElseIf chartIndex = 1 Then ' Add the smooth color scale starting at radius 128 with zero width and ending at radius 128 ' with 16 pixels inner width m.addColorScale(smoothColorScale, 128, 0, 128, -16) ElseIf chartIndex = 2 Then ' Add the smooth color scale starting at radius 70 with zero width and ending at radius 60 ' with 20 pixels outer width m.addColorScale(smoothColorScale, 70, 0, 60, 20) ElseIf chartIndex = 3 Then ' Add the high/low color scale at the default position m.addColorScale(highLowColorScale) ElseIf chartIndex = 4 Then ' Add the step color scale at the default position m.addColorScale(stepColorScale) Else ' Add the smooth color scale at radius 60 with 15 pixels outer width m.addColorScale(smoothColorScale, 60, 15) End If ' Add a text label centered at (150, 125) with 15pt Arial Italic font m.addText(150, 125, "CPU", "Arial Italic", 15, Chart.TextColor, Chart.BottomCenter) ' Add a red (0xff0000) pointer at the specified value m.addPointer2(value, &Hff0000) ' 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) createChart(WebChartViewer2, 2) createChart(WebChartViewer3, 3) createChart(WebChartViewer4, 4) createChart(WebChartViewer5, 5) 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" /> <chart:WebChartViewer id="WebChartViewer2" runat="server" /> <chart:WebChartViewer id="WebChartViewer3" runat="server" /> <chart:WebChartViewer id="WebChartViewer4" runat="server" /> <chart:WebChartViewer id="WebChartViewer5" runat="server" /> </body> </html>

[ASP.NET MVC - Controller] NetMvcCharts\Controllers\WhitesemicirclemeterController.cs
using System; using System.Web.Mvc; using ChartDirector; namespace NetMvcCharts.Controllers { public class WhitesemicirclemeterController : Controller { // // Default Action // public ActionResult Index() { ViewBag.Title = "White Semicircle Meters"; // This example contains 6 charts. ViewBag.Viewer = new RazorChartViewer[6]; 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 = 72.55; // Create an AngularMeter object of size 300 x 180 pixels with transparent background AngularMeter m = new AngularMeter(300, 180, Chart.Transparent); // Set the default text and line colors to very dark grey (0x222222) m.setColor(Chart.TextColor, 0x222222); m.setColor(Chart.LineColor, 0x222222); // Center at (150, 150), scale radius = 128 pixels, scale angle -90 to +90 degrees m.setMeter(150, 150, 128, -90, 90); // Gradient color for the border to make it silver-like double[] ringGradient = {1, 0x999999, 0.5, 0xdddddd, 0, 0xf8f8f8, -0.5, 0xdddddd, -1, 0x999999}; // Background gradient color from white (0xffffff) at the center to light grey (0xdddddd) at // the border double[] bgGradient = {0, 0xffffff, 0.75, 0xeeeeee, 1, 0xdddddd}; // Add a scale background of 148 pixels radius using the gradient background, with a 10 pixel // thick silver border m.addScaleBackground(148, m.relativeRadialGradient(bgGradient, 148), 10, m.relativeLinearGradient(ringGradient, 45, 148)); // Add a 1 pixel light grey (0xbbbbbb) line at the inner edge of the thick silver border // (radius = 138) to enhance its contrast with the background gradient m.addScaleBackground(138, Chart.Transparent, 1, 0xbbbbbb); // Meter scale is 0 - 100, with major tick every 20 units, minor tick every 10 units, and // micro tick every 5 units m.setScale(0, 100, 20, 10, 5); // Set the scale label style to 15pt Arial Italic. Set the major/minor/micro tick lengths to // 16/16/10 pixels pointing inwards, and their widths to 2/1/1 pixels. m.setLabelStyle("Arial Italic", 16); m.setTickLength(-16, -16, -10); m.setLineWidth(0, 2, 1, 1); // Demostrate different types of color scales and putting them at different positions double[] smoothColorScale = {0, 0x3333ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000}; double[] stepColorScale = {0, 0x00cc00, 60, 0xffdd00, 80, 0xee0000, 100}; double[] highLowColorScale = {0, 0x00ff00, 70, Chart.Transparent, 100, 0xff0000}; if (chartIndex == 0) { // Add the smooth color scale at the default position m.addColorScale(smoothColorScale); } else if (chartIndex == 1) { // Add the smooth color scale starting at radius 128 with zero width and ending at radius // 128 with 16 pixels inner width m.addColorScale(smoothColorScale, 128, 0, 128, -16); } else if (chartIndex == 2) { // Add the smooth color scale starting at radius 70 with zero width and ending at radius // 60 with 20 pixels outer width m.addColorScale(smoothColorScale, 70, 0, 60, 20); } else if (chartIndex == 3) { // Add the high/low color scale at the default position m.addColorScale(highLowColorScale); } else if (chartIndex == 4) { // Add the step color scale at the default position m.addColorScale(stepColorScale); } else { // Add the smooth color scale at radius 60 with 15 pixels outer width m.addColorScale(smoothColorScale, 60, 15); } // Add a text label centered at (150, 125) with 15pt Arial Italic font m.addText(150, 125, "CPU", "Arial Italic", 15, Chart.TextColor, Chart.BottomCenter); // Add a red (0xff0000) pointer at the specified value m.addPointer2(value, 0xff0000); // Output the chart viewer.Image = m.makeWebImage(Chart.SVG); } } }

[ASP.NET MVC - View] NetMvcCharts\Views\Shared\ChartView.cshtml
@{ 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>