/// <summary>
/// Creates a dummy chart to show an error message.
/// </summary>
/// <param name="viewer">The WPFChartViewer to display the error message.</param>
/// <param name="msg">The error message</param>
protected void errMsg(WPFChartViewer viewer, string msg)
{
MultiChart m = new MultiChart(400, 200);
m.addTitle2(Chart.Center, msg, "Arial", 10).setMaxWidth(m.getWidth());
viewer.Chart = m;
}
/// <summary>
/// Creates a dummy chart to show an error message.
/// </summary>
/// <param name="msg">The error message.
/// <returns>The BaseChart object containing the error message.</returns>
protected BaseChart errMsg(string msg)
{
MultiChart m = new MultiChart(400, 200);
m.addTitle2(Chart.Center, msg, "Arial", 10).setMaxWidth(m.getWidth());
return(m);
}
/// <summary>
/// Creates a dummy chart to show an error message.
/// </summary>
/// <param name="msg">The error message.
/// <returns>The BaseChart object containing the error message.</returns>
protected void errMsg(WinChartViewer WebChartViewer1, string msg)
{
MultiChart m = new MultiChart(400, 200);
m.addTitle2(Chart.Center, msg, "Arial", 10).setMaxWidth(m.getWidth());
WebChartViewer1.Image = m.makeImage();
}
//Main code for creating chart.
//Note: the argument img is unused because this demo only has 1 chart.
public void createChart(WinChartViewer viewer, string img)
{
// The age groups
string[] labels = { "0 - 4", "5 - 9", "10 - 14", "15 - 19", "20 - 24",
"24 - 29", "30 - 34", "35 - 39", "40 - 44", "44 - 49","50 - 54",
"55 - 59", "60 - 64", "65 - 69", "70 - 74", "75 - 79","80+" };
// The male population (in thousands)
double[] male = { 215, 238, 225, 236, 235, 260, 286, 340, 363, 305, 259,
164, 135, 127, 102, 68, 66 };
// The female population (in thousands)
double[] female = { 194, 203, 201, 220, 228, 271, 339, 401, 384, 304, 236,
137, 116, 122, 112, 85, 110 };
//=============================================================
// Draw the right bar chart
//=============================================================
// Create a XYChart object of size 320 x 300 pixels
XYChart c = new XYChart(320, 300);
// Set the plotarea at (50, 0) and of size 250 x 255 pixels. Use pink
// (0xffdddd) as the background.
c.setPlotArea(50, 0, 250, 255, 0xffdddd);
// Add a custom text label at the top right corner of the right bar chart
c.addText(300, 0, "Female", "Times New Roman Bold Italic", 12, 0xa07070
).setAlignment(Chart.TopRight);
// Add the pink (0xf0c0c0) bar chart layer using the female data
BarLayer femaleLayer = c.addBarLayer(female, 0xf0c0c0, "Female");
// Swap the axis so that the bars are drawn horizontally
c.swapXY(true);
// Set the bar to touch each others
femaleLayer.setBarGap(Chart.TouchBar);
// Set the border style of the bars to 1 pixel 3D border
femaleLayer.setBorderColor(-1, 1);
// Add a Transparent line layer to the chart using the male data. As it
// is Transparent, only the female bar chart can be seen. We need to put
// both male and female data in both left and right charts, because we
// want auto-scaling to produce the same scale for both chart.
c.addLineLayer(male, Chart.Transparent);
// Set the y axis label font to Arial Bold
c.yAxis().setLabelStyle("Arial Bold");
// Set the labels between the two bar charts, which can be considered as
// the x-axis labels for the right chart
ChartDirector.TextBox tb = c.xAxis().setLabels(labels);
// Use a fix width of 50 for the labels (height = automatic) with center
// alignment
tb.setSize(50, 0);
tb.setAlignment(Chart.Center);
// Set the label font to Arial Bold
tb.setFontStyle("Arial Bold");
// Disable ticks on the x-axis by setting the tick length to 0
c.xAxis().setTickLength(0);
//=============================================================
// Draw the left bar chart
//=============================================================
// Create a XYChart object of size 280 x 300 pixels with a transparent
// background.
XYChart c2 = new XYChart(280, 300, Chart.Transparent);
// Set the plotarea at (20, 0) and of size 250 x 255 pixels. Use pale
// blue (0xddddff) as the background.
c2.setPlotArea(20, 0, 250, 255, 0xddddff);
// Add a custom text label at the top left corner of the left bar chart
c2.addText(20, 0, "Male", "Times New Roman Bold Italic", 12, 0x7070a0);
// Add the pale blue (0xaaaaff) bar chart layer using the male data
BarLayer maleLayer = c2.addBarLayer(male, 0xaaaaff, "Male");
// Swap the axis so that the bars are drawn horizontally
c2.swapXY(true);
// Reverse the direction of the y-axis so it runs from right to left
c2.yAxis().setReverse();
// Set the bar to touch each others
maleLayer.setBarGap(Chart.TouchBar);
// Set the border style of the bars to 1 pixel 3D border
maleLayer.setBorderColor(-1, 1);
// Add a Transparent line layer to the chart using the female data. As it
// is Transparent, only the male bar chart can be seen. We need to put
// both male and female data in both left and right charts, because we
// want auto-scaling to produce the same scale for both chart.
c2.addLineLayer(female, Chart.Transparent);
// Set the y axis label font to Arial Bold
c2.yAxis().setLabelStyle("Arial Bold");
// Set the x-axis labels for tool tip purposes.
c2.xAxis().setLabels(labels);
// Hide the x-axis labels by setting them to Transparent. We only need to
// display the x-axis labels for the right chart.
c2.xAxis().setColors(0x000000, Chart.Transparent, -1, Chart.Transparent);
//=============================================================
// Use a MultiChart to contain both bar charts
//=============================================================
// Create a MultiChart object of size 590 x 320 pixels.
MultiChart m = new MultiChart(590, 320);
// Add a title to the chart using Arial Bold Italic font
m.addTitle("Demographics Hong Kong Year 2002", "Arial Bold Italic");
// Add another title at the bottom using Arial Bold Italic font
m.addTitle2(Chart.Bottom, "Population (in thousands)",
"Arial Bold Italic", 10);
// Put the right chart at (270, 25)
m.addChart(270, 25, c);
// Put the left chart at (0, 25)
m.addChart(0, 25, c2);
// Output the chart
viewer.Image = m.makeImage();
//include tool tip for the chart
viewer.ImageMap = m.getHTMLImageMap("clickable", "",
"title='{dataSetName} (Age {xLabel}): Population {value}K'");
}
