You find this example project in your Plugins Download as a Xojo project file within the examples folder: /ChartDirector/polarvector
Class PicWindow Inherits Window
EventHandler Sub Open()
// Coordinates of the starting points of the vectors
dim radius(-1) as double = array(5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25.0)
dim angle(-1) as double = array(0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330.0)
// Magnitude and direction of the vectors
dim magnitude(-1) as double = array(5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1.0)
dim direction(-1) as double = array(60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0.0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 0, 30)
// Create a PolarChart object of size 460 x 460 pixels
dim c as new CDPolarChartMBS(460, 460)
// Add a title to the chart at the top left corner using 15pts Arial Bold Italic
// font
call c.addTitle("Polar Vector Chart Demonstration", "arialbi.ttf", 15)
// Set center of plot area at (230, 240) with radius 180 pixels
c.setPlotArea(230, 240, 180)
// Set the grid style to circular grid
c.setGridStyle(false)
// Set angular axis as 0 - 360, with a spoke every 30 units
c.angularAxis.setLinearScale(0, 360, 30)
// Add a polar vector layer to the chart with blue (0000ff) vectors
call c.addVectorLayer(radius, angle, magnitude,direction, CDPolarChartMBS.kRadialAxisScale, &h0000ff)
// Output the chart
Backdrop=c.makeChartPicture
End EventHandler
End Class