Steema Central

Version: 1.1.2531.28391

Steps to reproduce:

1/ Add a chart (Size 400W x 250H)
2/ Add a bar series
3/ Add the following data

this.tChart1.Series[0].Add(0,0.0,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(1,0.1,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(2,0.2,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(3,0.3,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(4,0.4,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(5,0.5,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(6,0.6,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(7,0.7,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(8,0.8,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(9,0.9,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(10,2,System.Drawing.Color.Red);
this.tChart1.Series[0].Add(11,99,System.Drawing.Color.Red);

4/ Add a Mark Tips tool
5/ Rotate to 326
6/ Elevate to 339
7/ Attempt to use the mouse to hover over the series, (especially point 10)

I find that the Mark Tip does not appear at all on a lot of occasions.

The Mark Tips tool appears to work well when rotation and elevation are both set to 360.

Conclusion: When the chart is rotated or elevated less than 360, the Mark Tips tool is unaware of where the mouse cursor is really hovering over and does not pick up the relevant data point.

Hi VH1,

I could reproduce the issue here and added it to our wish-list to be enhanced for future release. I guess this problem is because of 2D coordinates conversion to 3D.

Actually I have found that even in 2D mode, when I have multiple Bar series, the Mark Tips tool does not detect the correct series?

Hi VH1,

This works fine here using the project you sent, adding an additional bar series and setting 2D mode.

I have uploaded a further project to your upload area.

Filename: WindowsApplication8.zip

This clearly shows several bar series in 2D.

Stacking set to None

The Marktips cannot distinguish between series.

Please Note. This also applies to 3D but 2D is an easier example.

Have you received the project file?

Hi VH1,

Yes, I received the project, I could reproduce the issue here and checked that this has already been fixed in TeeChart for .NET v2.