ChartDirector 7.0 (ASP/COM/VB Edition)

White Vertical Bar Meters


          

This example demonstrates vertical bar meters in a white coloring scheme, and with bars in various shading styles.

Source Code Listing

[Web Version (in ASP)] aspdemo\whitevbarmeter.asp
<%@ language="vbscript" %> <% Set cd = CreateObject("ChartDirector.API") ' This script can draw different charts depending on the chartIndex Sub createChart(viewer, chartIndex) ' The value to display on the meter value = 74.25 ' Create a LinearMeter object of size 70 x 260 pixels with very light grey (0xeeeeee) backgruond ' and a grey (0xbbbbbb) 3-pixel thick rounded frame Set m = cd.LinearMeter(70, 260, &Heeeeee, &Hbbbbbb) Call m.setRoundedFrame(cd.Transparent) Call m.setThickFrame(3) ' Set the scale region top-left corner at (28, 33), with size of 20 x 194 pixels. The scale ' labels are located on the left (default - implies vertical meter). Call m.setMeter(28, 33, 20, 194) ' Set meter scale from 0 - 100, with a tick every 10 units Call m.setScale(0, 100, 10) ' Demostrate different types of color scales smoothColorScale = Array(0, &H0000ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, 100, &Hff0000) stepColorScale = Array(0, &H00dd00, 50, &Hffff00, 80, &Hff0000, 100) highColorScale = Array(70, cd.Transparent, 100, &Hff0000) lowColorScale = Array(0, &H0000ff, 30, cd.Transparent) If chartIndex = 0 Then ' Add a blue (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners Call m.addBar(0, value, &H0088ff, cd.glassEffect(cd.NormalGlare, cd.Left), 4) ' Add a 6-pixel thick smooth color scale at x = 53 (right of meter scale) Call m.addColorScale(smoothColorScale, 53, 6) ElseIf chartIndex = 1 Then ' Add a green (0x00cc00) bar from 0 to value with bar lighting effect and 4 pixel rounded ' corners Call m.addBar(0, value, &H00cc00, cd.barLighting(), 4) ' Add a high only color scale at x = 52 (right of meter scale) with thickness varying from 0 ' to 8 Call m.addColorScale(highColorScale, 52, 0, 52, 8) ' Add a low only color scale at x = 52 (right of meter scale) with thickness varying from 8 ' to 0 Call m.addColorScale(lowColorScale, 52, 8, 52, 0) ElseIf chartIndex = 2 Then ' Add a purple (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners Call m.addBar(0, value, &H8833dd, cd.glassEffect(cd.NormalGlare, cd.Left), 4) ' Add a high only color scale at x = 52 (right of meter scale) with thickness varying from 0 ' to 8 Call m.addColorScale(highColorScale, 52, 0, 52, 8) ElseIf chartIndex = 3 Then ' Add a orange (0xff8800) bar from 0 to value with cylinder lighting effect Call m.addBar(0, value, &Hff8800, cd.cylinderEffect()) ' Add a high only color scale at x = 53 (right of meter scale) Call m.addColorScale(highColorScale, 53, 6) ElseIf chartIndex = 4 Then ' Add a red (0xee3333) bar from 0 to value with glass effect and 4 pixel rounded corners Call m.addBar(0, value, &Hee3333, cd.glassEffect(cd.NormalGlare, cd.Left), 4) ' Add a step color scale at x = 53 (right of meter scale) Call m.addColorScale(stepColorScale, 53, 6) Else ' Add a grey (0xaaaaaa) bar from 0 to value Call m.addBar(0, value, &Haaaaaa) ' Add a smooth color scale at x = 52 (right of meter scale) with thickness varying from 0 to ' 8 Call m.addColorScale(smoothColorScale, 52, 0, 52, 8) End If ' Add a title using 8pt Arial Bold font with grey (0xbbbbbb) background Call m.addTitle("Temp C", "Arial Bold", 8, cd.TextColor).setBackground(&Hbbbbbb) ' Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold ' font on a black (0x000000) background with rounded border. Set t = m.addText(m.getWidth() / 2, m.getHeight() - 8, m.formatValue(value, "2"), _ "Arial Bold", 8, &Hffffff, cd.Bottom) Call t.setBackground(&H000000) Call t.setRoundedCorners(3) Call t.setMargin2(5, 5, 2, 1) ' Output the chart Call viewer.setChart(m, cd.SVG) End Sub ' This example includes 6 charts Dim viewers(5) For i = 0 To Ubound(viewers) Set viewers(i) = cd.WebChartViewer(Request, "chart" & i) Call createChart(viewers(i), i) Next %> <!DOCTYPE html> <html> <head> <title>White Vertical Bar Meters</title> <!-- Include ChartDirector Javascript Library to support chart interactions --> <script type="text/javascript" src="cdjcv.js"></script> </head> <body style="margin:5px 0px 0px 5px"> <div style="font:bold 18pt verdana;"> White Vertical Bar Meters </div> <hr style="border:solid 1px #000080; background:#000080" /> <div style="font:10pt verdana; margin-bottom:1.5em"> <a href="viewsource.asp?file=<%= Request("SCRIPT_NAME") %>">View Chart Source Code</a> </div> <!-- ****** Here are the chart images ****** --> <% For i = 0 To Ubound(viewers) Call Response.Write(viewers(i).renderHTML()) Call Response.Write(" ") Next %> </body> </html>

[Windows Version (in Visual Basic)] vbdemo\whitevbarmeter.cls
Public Sub createChart(viewer As Object, chartIndex As Integer) Dim cd As New ChartDirector.API ' The value to display on the meter Dim value As Double value = 74.25 ' Create a LinearMeter object of size 70 x 260 pixels with very light grey (0xeeeeee) backgruond ' and a grey (0xbbbbbb) 3-pixel thick rounded frame Dim m As LinearMeter Set m = cd.LinearMeter(70, 260, &Heeeeee, &Hbbbbbb) Call m.setRoundedFrame() Call m.setThickFrame(3) ' Set the scale region top-left corner at (28, 33), with size of 20 x 194 pixels. The scale ' labels are located on the left (default - implies vertical meter). Call m.setMeter(28, 33, 20, 194) ' Set meter scale from 0 - 100, with a tick every 10 units Call m.setScale(0, 100, 10) ' Demostrate different types of color scales Dim smoothColorScale() smoothColorScale = Array(0, &H0000ff, 25, &H0088ff, 50, &H00ff00, 75, &Hdddd00, 100, &Hff0000) Dim stepColorScale() stepColorScale = Array(0, &H00dd00, 50, &Hffff00, 80, &Hff0000, 100) Dim highColorScale() highColorScale = Array(70, cd.Transparent, 100, &Hff0000) Dim lowColorScale() lowColorScale = Array(0, &H0000ff, 30, cd.Transparent) If chartIndex = 0 Then ' Add a blue (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners Call m.addBar(0, value, &H0088ff, cd.glassEffect(cd.NormalGlare, cd.Left), 4) ' Add a 6-pixel thick smooth color scale at x = 53 (right of meter scale) Call m.addColorScale(smoothColorScale, 53, 6) ElseIf chartIndex = 1 Then ' Add a green (0x00cc00) bar from 0 to value with bar lighting effect and 4 pixel rounded ' corners Call m.addBar(0, value, &H00cc00, cd.barLighting(), 4) ' Add a high only color scale at x = 52 (right of meter scale) with thickness varying from 0 ' to 8 Call m.addColorScale(highColorScale, 52, 0, 52, 8) ' Add a low only color scale at x = 52 (right of meter scale) with thickness varying from 8 ' to 0 Call m.addColorScale(lowColorScale, 52, 8, 52, 0) ElseIf chartIndex = 2 Then ' Add a purple (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners Call m.addBar(0, value, &H8833dd, cd.glassEffect(cd.NormalGlare, cd.Left), 4) ' Add a high only color scale at x = 52 (right of meter scale) with thickness varying from 0 ' to 8 Call m.addColorScale(highColorScale, 52, 0, 52, 8) ElseIf chartIndex = 3 Then ' Add a orange (0xff8800) bar from 0 to value with cylinder lighting effect Call m.addBar(0, value, &Hff8800, cd.cylinderEffect()) ' Add a high only color scale at x = 53 (right of meter scale) Call m.addColorScale(highColorScale, 53, 6) ElseIf chartIndex = 4 Then ' Add a red (0xee3333) bar from 0 to value with glass effect and 4 pixel rounded corners Call m.addBar(0, value, &Hee3333, cd.glassEffect(cd.NormalGlare, cd.Left), 4) ' Add a step color scale at x = 53 (right of meter scale) Call m.addColorScale(stepColorScale, 53, 6) Else ' Add a grey (0xaaaaaa) bar from 0 to value Call m.addBar(0, value, &Haaaaaa) ' Add a smooth color scale at x = 52 (right of meter scale) with thickness varying from 0 to ' 8 Call m.addColorScale(smoothColorScale, 52, 0, 52, 8) End If ' Add a title using 8pt Arial Bold font with grey (0xbbbbbb) background Call m.addTitle("Temp C", "arialbd.ttf", 8, cd.TextColor).setBackground(&Hbbbbbb) ' Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold ' font on a black (0x000000) background with rounded border. Dim t As ChartDirector.TextBox Set t = m.addText(m.getWidth() / 2, m.getHeight() - 8, m.formatValue(value, "2"), _ "arialbd.ttf", 8, &Hffffff, cd.Bottom) Call t.setBackground(&H000000) Call t.setRoundedCorners(3) Call t.setMargin2(5, 5, 2, 1) ' Output the chart Set viewer.Picture = m.makePicture() End Sub