Some questions and possible issues found with V3

[Adrian]

Hi there,
I'm using the 3.2.2868.26902 release and have the following questions.

Thanks....

1. Bar, Bar 3D, Error Bar and Horizontal Bar --> Format --> Size, what does "Auto Mark Position" option do?

2. BUBBLE --> Format --> Treat Nulls, cant find documentation on what this option does.

3. There are two Pattern buttons on Area --> Options, what are the two buttons for?

4. Does Series --> Format --> Colour --> Color Each for an area series have any effect?

5. Contour Series has Series --> Format --> Marks, and also Series --> Marks. Why?

6. Transparancy on Pie and Donut Series --> Format doesn't seem to do anything.

7. Outline button on Line --> format seems to continuously increase the width of the line outline, no matter what is entered.

8. What does the Hide Cells buton do on the Surface series. Format tab.

9. Problem with volume series throwing unhandled exception.

10. Axis --> title --> Style, what does the size option do?

11. on Chart --> axis --> ticks, what does the bottom Len option do?

12. What does Chart --> Walls --> Left --> Auto Hide do?

13. What does the Blur slider do? It currently can't be changed!

[Narcís]

Hi Adrian,

Please find below the answers to your questions:

1. Bar, Bar 3D, Error Bar and Horizontal Bar --> Format --> Size, what does "Auto Mark Position" option do?

According to TeeChart's helpfile:

The AutoMarkPosition property controls if Marks on Bar series will be repositioned if there's the possibility of Mark overlapping. Marks are displaced to the top of the Bars to minimize the overlapping effect of Marks with long text or big font sizes.

When false, no checking is performed and all Marks are drawn at their Mark.ArrowLength distance to the top of the Bar.

2. BUBBLE --> Format --> Treat Nulls, cant find documentation on what this option does.

Here there's some information on how this property works.

3. There are two Pattern buttons on Area --> Options, what are the two buttons for?

The upper one edits area.Brush while the bottom one edits area.AreaBrush. The AreaBrush property indicates the kind of Brush used to fill the background Area region and is not visible by default and overrides standard series brush.

4. Does Series --> Format --> Colour --> Color Each for an area series have any effect?

Yes, it plots each area series region with a different color. You check this at the All Features\Welcome !\Chart styles\Standard\Area example in the features demo, enabling this checkbox for any of the series.

5. Contour Series has Series --> Format --> Marks, and also Series --> Marks. Why?

Series->Marks tab is a general tab in all series while Series->Format->Marks tab is specific to Contour series and has some additional properties that standard series marks don't have.

6. Transparancy on Pie and Donut Series --> Format doesn't seem to do anything.

Yes, that's right. I've added this defect (TF02012638) to our bug list to be fixed for future releases.

7. Outline button on Line --> format seems to continuously increase the width of the line outline, no matter what is entered.

Yes, when pressing the ok button the pen.width is increased with 3 units. I've added this defect (TF02012639) to the bug list as well.

8. What does the Hide Cells buton do on the Surface series. Format tab.

Depending on some aspect settings like rotation, elevation, 3D percent, etc.. some surface cells can be painted baldy. Setting this property to "True" these specific cells will be repainted.

9. Problem with volume series throwing unhandled exception.

I'm not able to reproduce the problem here using build 3.2.2894.29191. Could you please send us a simple example project we can run "as-is" or let us know the steps we should follow to reproduce the issue here?

You can post your files at news://www.steema.net/steema.public.attachments newsgroup or at our upload page.

10. Axis --> title --> Style, what does the size option do?

Sets the width or height of the title's text shape object. However it is not functional. I've added this bug (TF02012640) to the defect list.

11. on Chart --> axis --> ticks, what does the bottom Len option do?

Upper one sets the length of the axis ticks while the other sets the length of the inner ticks. However, I've noticed that even setting the inner ticks to visible using the editor they are automatically set to invisible. I've also added this defect (TF02012641) to the list.

12. What does Chart --> Walls --> Left --> Auto Hide do?

Gets or sets if the Wall will automatically hide when the chart rotation forces to display the wall over series contents.

Setting AutoHide to True will automatically hide walls in a way they will never obscure the series points.

The default value is False for compatibility with previous TeeChart versions, where walls were never hidden automatically.

13. What does the Blur slider do? It currently can't be changed!

Sets smooth blur value for the shadows, it can only be changed when smooth is enabled for shadows.