In C++ ActiveX v8, I want to draw a direction arrow on my line series that points along the line. I've calculated the points of the arrow (below) - but I'm not sure how to put them into the VARIANT for the Polygon? Is it supposed to be an array of CPoints? Or an integer list of coordinates? //------...

I suspect there isn't an easy way to do what I want, but I thought I'd check before I set off trying something complicated! :D I have an existing line series representing an elevation profile. I would like the user to be able to manually draw a number of new series on top of that profile such that: ...

I've just upgraded from v8 to the latest release and I was wondering if any adaptive rendering had been implemented? Several years ago I experimented with replacing another graphing control we use to display DEMs with TeeChart. TeeChart was appreciably slower because it seemed to render every point ...

Using v8 in Hebrew Windows my chart is being rendered backwards. SnipImage.JPG It looks as if the chart is rendered normally (i.e. LTR) and then simply flipped RTL with a BitBLt or something. This is incorrect, the chart should be rendered LTR, as should the arabic numerals. Only the Hebrew text sho...

Hi Yeray - similarly, I can use that example with no problems. I can't seem to replicate the problem in a simple(r) solutiuon.

How likely is it that upgrading to the 2011 version will fix my problem? Is there a change list somewhere?

Dear Steema, The attached dataset is giving me problems in TeeChart v8.0.1.1 on an MFC application dialog built in VS2010. It appears to be related to the "Elevation" series, but I can't figure out what exactly the problem is. Things I know: 1) My chart dialog freezes when opening, seemingly enterin...

Is there any non-code way to make the print preview properties of the TeeChart control persistent? When printing lots of charts it is tedious to have to set the margins every time (especially since TeeChart seems to prefer picking ridiculously large margins). Actually, this applies to all the print ...

We recently found that one of our third party components was using a standard windows timer that shared the same timer ID we were using for a dongle heartbeat check (attached to the same Hwnd too). We thought the dongle was being checked every 90s, but it was being checked on every mouse move. This ...

We've had some problems with third party timers interacting with our OnTimer handler. For that reason I was wondering what timer ID is used by T-Chart's built in timer?

Cheers,

Just ignore me - I found errors in my code!

I'm having some problems with the cursor tool and wondered if they were known problems? I'm using v8.0.0.8 Firstly, I 've had to add two dummy cursor tools (0 and 1) and set them inactive, because they won't activate (I can set them active but the flag doesn't stick). My actual two cursor tools are ...

I'm trying to display some large surfaces (like 400 x 400 -> 800 x 800 XYZ points) and wondered if there is a setting to make the surface display in an adaptive way. I mean, so that it doesn't try to render the whole dataset - but calculates a 'reasonable' surface based on the pixel resolution of th...

Hi Narcís, Yes, that code works, but this code doesn't: Private Sub Command1_Click() TChart1.Series(0).asLine.ColorEachLine = Not TChart1.Series(0).asLine.ColorEachLine End Sub Private Sub Form_Load() TChart1.Aspect.View3D = False TChart1.AddSeries scLine TChart1.Series(0).asLine.ColorEachLine = Tru...

OK, I worked around this by putting the pointers on using the 'psNothing' style, but I still think the 'Colour each line' flag should work regardless of the visibility of the pointers.

Thanks!

I'm potentially displaying multiple line series. When I have only one series I colour each point depending on the data (using 'colour each line' with pointers NOT visible). When I display multiple series I want to give each series a 'solid' colour, so that they are easier to tell apart. Ideally I'd ...