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  Text on addzone
Posted by Kevin on Mar-05-2016 03:12
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In my polar chart I am going to need to put text on each Red, Yellow and Green zone. Is it possible to add text in the Pol.angularAxis().addZone(1, 2, 0, 40, &HFF0202, &H0) statement. Right now the only way I found to put the text on is doing this.

Dim polTxt As TextBox = Pol.addText(335, 260, "1 of 7", "arialbd.ttf", 12)
polTxt.setFontAngle(38)

polTxt = Pol.addText(315, 240, "49%", "arialbd.ttf", 12)
polTxt.setFontAngle(38)

Thanks,
Kevin
text chart.png

  Re: Text on addzone
Posted by Peter Kwan on Mar-05-2016 16:47
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Hi Kevin,

For your case, you would need to use the addText method. You may use something like:


... create the chart as usual and add the zones ...

// auto-scale the axis so that we can use getXCoor and getYCoor
c.layout();

c.addText(c.getXCoor(1.5, 20), c.getYCoor(1.5, 20), "ABCD", "arialbd.ttf", 8, 0x000000, Chart.Center, -20)

The above assumes the zone is with radius = 1 to 2 and angle = 0 to 40, so that the center point is radius = 1.5 and angle = 20. The text is rotated by the same angle (the minus sign is because the text is rotated counterclockwise, while I assume the angles in the polar chart is configured to be clockwise).

Hope this can help.

Regards
Peter Kwan

  Re: Text on addzone
Posted by Kevin on Mar-08-2016 00:28
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Peter,

Thanks, this worked except radius = 0 to 40 and angle = 1 to 2 so I had to  flip the getXCoor number.

c.addText(c.getXCoor(20, 1.5), c.getYCoor( 20,1.5), "ABCD", "arialbd.ttf", 8, 0x000000, Chart.Center, -20)

Thanks,
Kevin