Fantastic, that works! Thankyou very much Yeray.

Hi, We had TChart Pro v8.04 working wonderfully, but following a partial reinstall of RAD Studio, I am now getting compiler errors stating that a unit using QRTee was compiled with a different version of e.g. DBChart. Is there an obvious easy way to resolve this? Should I be completely uninstalling ...

Narcís, Yeray,

Okay, I'll do that. Thankyou for your help in this matter.

Regards

Trevor Cooper

Yaray,

Yes I apologise for confusing you (and myself) with TBarSeries instead of THistogramSeries.

You say that a fix is on the wish list for further releases. Can you tell me when the next release would be and whether this fix would be in it?

Thanks for all your help.

Trevor Cooper

Yaray, In my original post I mentioned the problem was with THistogramSeries. In this test project we've set up a TBarSeries which is a different animal. I can see now that there is no problem with a TBarSeries. But there is a problem with the THistogramSeries, and I have reproduced it in the versio...

Hi Yeray, I'm using a machine in the UK and its decimal separator is already '.', so adding the line to set it explicitly at run time doesn't make any difference. In the project I uploaded back to you yesterday, would you please check the following: 1. At design time, set the series bottom axis to b...

Hi, Okay I have modified the test project and am uploading it. Please note that in my real project I am not using a TSeriesTextSource. I am populating the histogram series from a series I have constructed in memory. I use the series' AddXY method with a Delphi TDateTime value passed as the X. But I ...

Hi Yeray, I've just uploaded a few files at your upload page under name 'Trevor Cooper'. Hope you can see them. Firstly, the attached PowerPoint document 'THistogramSeries_TAreaSeries.pptx' contains two slides showing two views of some identical data. The first slide shows the first chart 'Rainfall'...

Hi, I recently installed v8.04 for Delphi 2007 and recompiled my code. I found changed behaviour for THistogramSeries. The data is in some cases incorrectly offset by exactly twelve hours compared to either THistogramSeries in v7 or TAreaSeries in v8.04. Has anyone seen anything like this? I can sup...

That worked perfectly. Thankyou very much.

Users often ask to be able to see the mark for a point just by moving the mouse over it, like you can do in Excel. There doesn't seem to be a mechanism for this with TChart. You can only switch all marks on and off using a series' 'Marks.Visible' property. Also, as there's no OnMouseMove event for a...

The OnAfterDraw event is of course the first one I thought of. But it doesn't help. If you change the value of a chart's BottomAxis.LabelsSize in the OnAfterDraw event it does not force the chart to redraw itself with the new labels size. Surely if it did, the whole process would become infinitely r...

Okay, I can calculate what the axis LabelsSize property needs to be, but when do you set it? There's an 'OnBeforeDrawAxes' event, but no 'OnAfterDrawAxes' event.

But the labels are rotated at 90 degrees, so the number of rows isn't relevant. It's the length of the longest line of text anywhere along the axis. Is there a way of calculating that?

With TeeChart Pro 6.01, since the 'multiline' axis label property appears not to work, I use TeeSplitInLines in the OnGetAxisLabel event to successfully split long bottom-axis labels rotated at 90 degrees. But then the chart does not resize the axis label space to make use of the extra space now ava...