ChartDirector 7.0 (ASP/COM/VB Edition)

Black Vertical Bar Meters


          

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

Source Code Listing

[Web Version (in ASP)] aspdemo\blackvbarmeter.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 = 66.77 ' Create a LinearMeter object of size 70 x 260 pixels with black background and rounded corners Set m = cd.LinearMeter(70, 260, &H000000) Call m.setRoundedFrame(cd.Transparent) ' Set the default text and line colors to white (0xffffff) Call m.setColor(cd.TextColor, &Hffffff) Call m.setColor(cd.LineColor, &Hffffff) ' Set the scale region top-left corner at (36, 30), with size of 20 x 196 pixels. The scale ' labels are located on the left (default - implies vertical meter). Call m.setMeter(36, 30, 20, 196) ' Set meter scale from 0 - 100, with a tick every 10 units Call m.setScale(0, 100, 10) ' Add the chart title at the top center Set title = m.addText(m.getWidth() / 2, 5, "Temp C", "Arial Bold", 8, cd.TextColor, _ cd.TopCenter) ' Move the scale labels 8 pixels from the meter scale to make room for the color scale Call m.setLabelPos(False, 8) ' 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) highLowColorScale = Array(0, &H0000ff, 40, cd.Transparent, 60, cd.Transparent, 100, &Hff0000) highColorScale = Array(70, cd.Transparent, 100, &Hff0000) 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 4-pixel thick smooth color scale at x = 29 (left of meter scale) Call m.addColorScale(smoothColorScale, 29, 4) ElseIf chartIndex = 1 Then ' Add a yellow (0xCC9922) bar from 0 to value with bar lighting effect Call m.addBar(0, value, &Hcc9922, cd.barLighting()) ' Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale) Call m.addColorScale(smoothColorScale, 29, 4) ' Set the title style to black text on a yellow (0xcc9922) background with rounded corners Call title.setFontColor(&H000000) Call title.setBackground(&Hcc9922) Call title.setRoundedCorners(2) ElseIf chartIndex = 2 Then ' Add a grey (0xaaaaaa) bar from 0 to value with bar lighting effect Call m.addBar(0, value, &Haaaaaa, cd.barLighting()) ' Add a 4-pixel high/low color scale at x = 29 (left of meter scale) Call m.addColorScale(highLowColorScale, 29, 4) ElseIf chartIndex = 3 Then ' Add a brown (0xbb6622) bar from 0 to value with cylinder lighting effect Call m.addBar(0, value, &Hbb6622, cd.cylinderEffect()) ' Add a 4 pixel thick brown (0xbb6622) frame Call m.setThickFrame(4, &Hbb6622) ' Add a high only color scale at x = 29 (left of meter scale) Call m.addColorScale(highColorScale, 29, 4) ElseIf chartIndex = 4 Then ' Add a purple (0x7755ee) bar from 0 to value Call m.addBar(0, value, &H7755ee) ' Add a 4 pixel thick purple (0x880088) frame Call m.setThickFrame(4, &H880088) ' Add a 4-pixel high/low color scale at x = 29 (left of meter scale) Call m.addColorScale(highLowColorScale, 29, 4) Else ' Add a green (0x00bb00) bar from 0 to value with soft lighting effect and 4 pixel rounded ' corners Call m.addBar(0, value, &H00bb00, cd.softLighting(), 4) ' Add a 4-pixel step color scale at x = 29 (left of meter scale) Call m.addColorScale(stepColorScale, 29, 4) End If ' Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold ' font on a black (0x000000) background with depressed grey (0x333333) rounded border. Set t = m.addText(m.getWidth() / 2, m.getHeight() - 7, m.formatValue(value, "2"), _ "Arial Bold", 8, &Hffffff, cd.BottomCenter) Call t.setBackground(&H000000, &H333333, -1) Call t.setRoundedCorners(3) ' 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>Black 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;"> Black 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\blackvbarmeter.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 = 66.77 ' Create a LinearMeter object of size 70 x 260 pixels with black background and rounded corners Dim m As LinearMeter Set m = cd.LinearMeter(70, 260, &H000000) Call m.setRoundedFrame() ' Set the default text and line colors to white (0xffffff) Call m.setColor(cd.TextColor, &Hffffff) Call m.setColor(cd.LineColor, &Hffffff) ' Set the scale region top-left corner at (36, 30), with size of 20 x 196 pixels. The scale ' labels are located on the left (default - implies vertical meter). Call m.setMeter(36, 30, 20, 196) ' Set meter scale from 0 - 100, with a tick every 10 units Call m.setScale(0, 100, 10) ' Add the chart title at the top center Dim title As ChartDirector.TextBox Set title = m.addText(m.getWidth() / 2, 5, "Temp C", "arialbd.ttf", 8, cd.TextColor, _ cd.TopCenter) ' Move the scale labels 8 pixels from the meter scale to make room for the color scale Call m.setLabelPos(False, 8) ' 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 highLowColorScale() highLowColorScale = Array(0, &H0000ff, 40, cd.Transparent, 60, cd.Transparent, 100, &Hff0000) Dim highColorScale() highColorScale = Array(70, cd.Transparent, 100, &Hff0000) 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 4-pixel thick smooth color scale at x = 29 (left of meter scale) Call m.addColorScale(smoothColorScale, 29, 4) ElseIf chartIndex = 1 Then ' Add a yellow (0xCC9922) bar from 0 to value with bar lighting effect Call m.addBar(0, value, &Hcc9922, cd.barLighting()) ' Add a 4-pixel thick smooth color scale at x = 29 (left of meter scale) Call m.addColorScale(smoothColorScale, 29, 4) ' Set the title style to black text on a yellow (0xcc9922) background with rounded corners Call title.setFontColor(&H000000) Call title.setBackground(&Hcc9922) Call title.setRoundedCorners(2) ElseIf chartIndex = 2 Then ' Add a grey (0xaaaaaa) bar from 0 to value with bar lighting effect Call m.addBar(0, value, &Haaaaaa, cd.barLighting()) ' Add a 4-pixel high/low color scale at x = 29 (left of meter scale) Call m.addColorScale(highLowColorScale, 29, 4) ElseIf chartIndex = 3 Then ' Add a brown (0xbb6622) bar from 0 to value with cylinder lighting effect Call m.addBar(0, value, &Hbb6622, cd.cylinderEffect()) ' Add a 4 pixel thick brown (0xbb6622) frame Call m.setThickFrame(4, &Hbb6622) ' Add a high only color scale at x = 29 (left of meter scale) Call m.addColorScale(highColorScale, 29, 4) ElseIf chartIndex = 4 Then ' Add a purple (0x7755ee) bar from 0 to value Call m.addBar(0, value, &H7755ee) ' Add a 4 pixel thick purple (0x880088) frame Call m.setThickFrame(4, &H880088) ' Add a 4-pixel high/low color scale at x = 29 (left of meter scale) Call m.addColorScale(highLowColorScale, 29, 4) Else ' Add a green (0x00bb00) bar from 0 to value with soft lighting effect and 4 pixel rounded ' corners Call m.addBar(0, value, &H00bb00, cd.softLighting(), 4) ' Add a 4-pixel step color scale at x = 29 (left of meter scale) Call m.addColorScale(stepColorScale, 29, 4) End If ' Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold ' font on a black (0x000000) background with depressed grey (0x333333) rounded border. Dim t As ChartDirector.TextBox Set t = m.addText(m.getWidth() / 2, m.getHeight() - 7, m.formatValue(value, "2"), _ "arialbd.ttf", 8, &Hffffff, cd.BottomCenter) Call t.setBackground(&H000000, &H333333, -1) Call t.setRoundedCorners(3) ' Output the chart Set viewer.Picture = m.makePicture() End Sub