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/ChartDirector/High Resolution Chart Examples/contour
Function:
Required plugins for this example: MBS ChartDirector Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /ChartDirector/High Resolution Chart Examples/contour
This example is the version from Sun, 17th Mar 2012.

Project "contour.rbp"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
End Class
Class PicWindow Inherits Window
EventHandler Sub Open() const f=4 // scale factor, 1 for screen and 4 or more for printing // The x and y coordinates of the grid dim dataX(-1) as double = array(-10.0, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) dim dataY(-1) as double = array(-10.0, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) // The values at the grid points. In this example, we will compute the values // using the formula z = x * sin(y) + y * sin(x). dim dataZ(21*21-1) as double for yIndex as integer = 0 to UBound(datay) dim y as double = dataY(yIndex) for xIndex as integer = 0 to UBound(datay) dim x as double = dataX(xIndex) dataZ(yIndex * 21 + xIndex) = x * sin(y) + y * sin(x) next next // Create a XYChart object of size 600 x 500 pixels dim c as new CDXYChartMBS(f*600, f*500) // Add a title to the chart using 15 points Arial Bold Italic font call c.addTitle("z = x * sin(y) + y * sin(x) ", "arialbi.ttf", f*15) c.xAxis.setTickWidth f c.xAxis.setTickLength f*4 c.yAxis.setTickWidth f c.yAxis.setTickLength f*4 // Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use // semi-transparent black (80000000) dotted lines for both horizontal and // vertical grid lines dim p as CDPlotAreaMBS= c.setPlotArea(f*75, f*40, f*400, f*400, -1, -1, -1, c.dashLineColor(&h80000000, CDXYChartMBS.kDotLine), -1) p.setGridWidth(f,f) // Set x-axis and y-axis title using 12 points Arial Bold Italic font call c.xAxis.setTitle("X-Axis Title Place Holder", "arialbi.ttf", f*12) call c.yAxis.setTitle("Y-Axis Title Place Holder", "arialbi.ttf", f*12) // Set x-axis and y-axis labels to use Arial Bold font call c.xAxis.setLabelStyle("arialbd.ttf",f*8) call c.yAxis.setLabelStyle("arialbd.ttf",f*8) // When auto-scaling, use tick spacing of 40 pixels as a guideline c.yAxis.setTickDensity(f*40) c.xAxis.setTickDensity(f*40) // Add a contour layer using the given data dim layer as CDContourLayerMBS = c.addContourLayer(dataX,dataY,dataZ) // Move the grid lines in front of the contour layer c.getPlotArea.moveGridBefore(layer) // Add a color axis (the legend) in which the top left corner is anchored at // (505, 40). Set the length to 400 pixels and the labels on the right side. dim cAxis as CDColorAxisMBS = layer.setColorAxis(f*505, f*40, CDXYChartMBS.kTopLeft, f*400, CDXYChartMBS.kRight) cAxis.setTickWidth(f) cAxis.setWidth(f*10) // Add a title to the color axis using 12 points Arial Bold Italic font call cAxis.setTitle("Color Legend Title Place Holder", "arialbi.ttf", f*12) // Set color axis labels to use Arial Bold font call cAxis.setLabelStyle("arialbd.ttf",f*8) // Output the chart Backdrop=c.makeChartPicture Width=f*600 Height=f* 500 End EventHandler
End Class