Yeray, Thank you for the reply. Usually the most obvious things are the hardest to see!! I have tried this and I can only ever get a maximum value of 601 points regardless of factor so I am assuming that must be some internal maximum ? For example if I have 3 points and set factor to 1000 and 2000 I...

Hello Steema, I have a query regarding how to set the period of a Spline function. At the moment I am doing the following but I only get 28 points even though I have set Period to 5000 and PeriodStyle to psNumPoints. Any clues would be great. The reason I am asking is that I previously asked how to ...

Answered my own question. Draw the LineSeries as the last series and it will be on top.

Hi, I have a TChart and on it I draw a TLineSeries and a TAreaSeries. How can I make sure I get the ValueIndex of the TLineSeries in the OnClick event if the TAreaSeries overlaps the TLineSeries?? What happens currently is that the ValueIndex always returns 0 when I draw both the TAreaSeries and the...

Narcís,

Ok thanks for the clarification. I should have thought about that before the question. I can now see the advantage of also getting the source code as part of the license.

Cheers.

I am also interested to hear it is close but would also like to know if we can simply copy existing Delphi version folders and implement a manual installation of say Delphi 2009 packages into Delphi 2010? Is there any way of retro fitting the existing Delphi 2009 package for use under Delphi 2010 ? ...

Hi Yeray, Thanks so much for the information. I must admit with the first point you have noted I basically copied code from a previous forum article and that's why PositionUnits is in the AfterDraw because that is what was suggested. The forum article I am referring to is http://www.teechart.net/sup...

Hi Steema, I am new to the TAnnotationTool but I have found an interesting problem. If I use the following code it works fine. TMYForm.FormCreate ; begin SetLength(SieveAnnotation,12) ; for i := 0 to 11 do begin SieveAnnotation := TAnnotationTool.Create(self) ; SieveAnnotation .Brush.Color:=clWhite;...

Yeray, Thanks for that. Perfect. Works fine now. One thing though, I have used Delphi since Delphi 1 and your standard components as part of Delphi since I can't remember but I have never put my AddSeries before I have processed the points into the actual series. Is this standard practice ? I am sur...

I should mention I uploaded via the upload page.

Thanks,
Steve

Hi Narcís,

I have uploaded an app as requested. Very basic but does do what I have tried to explain in this post so far. The file I have uploaded is called TestofSplineExampleApp.zip

Cheers,
Steve

The lines shown as MDRPointSeries.AddXY(5.5,1.85,'',clTeal) ; MDRPointSeries.AddXY(6.5,1.90,'',clTeal) ; MDRPointSeries.AddXY(7.5,1.95,'',clTeal) ; MDRPointSeries.AddXY(8.5,1.91,'',clTeal) ; should read MDRPointSeries[LabNoIndex].AddXY(5.5,1.85,'',clTeal) ; MDRPointSeries[LabNoIndex].AddXY(6.5,1.90,...

Yeray, Thanks for the reply. I should have included a little more information on how I use the spline function. I have tried the method shown in your reply but I have had no luck as the TSmoothingFunction gives me no data in my series. Here is what I have so far....... unit testofspline ; // procedu...

Hi Steema,

I have just purchased the latest VCL Pro version and have implemented a Spline function which works perfectly. My next requirement is to get a specific X value from the Y Maximum of the spline. Is this possible and if so how do I achieve this ?

Thanks,
Steve West