Search found 20 matches

by Toreba
Fri Nov 09, 2012 3:00 pm
Forum: VCL
Topic: Inverted THistogramSeries won't fire OnClick event
Replies: 6
Views: 2146

Re: Inverted THistogramSeries won't fire OnClick event

The release notes for build 2012.07.121031 suggest this hasn't been fixed. Is that true?
by Toreba
Fri Nov 09, 2012 2:54 pm
Forum: VCL
Topic: TChartEditor exports to Excel 2007 format
Replies: 3
Views: 1196

Re: TChartEditor exports to Excel 2007 format

Will it be in this new build 2012.07.121031?
by Toreba
Tue Oct 30, 2012 11:19 am
Forum: VCL
Topic: TChartEditor exports to Excel 2007 format
Replies: 3
Views: 1196

TChartEditor exports to Excel 2007 format

Hi,

Using TeeChart Pro v2012.06.120613 32-bit VCL, exports to Excel from TChartEditor are created as .xls with its limitation of about 65,000 rows. Any plans to upgrade to allow export to .xlsx?

Thanks

Toreba
by Toreba
Fri Sep 28, 2012 2:49 pm
Forum: VCL
Topic: Floating point overflow zooming in
Replies: 13
Views: 3151

Re: Floating point overflow zooming in

Okay, thanks for your help Yeray!
by Toreba
Thu Sep 27, 2012 4:43 pm
Forum: VCL
Topic: Floating point overflow zooming in
Replies: 13
Views: 3151

Re: Floating point overflow zooming in

Yeray, I've slightly expanded my example project with a hard-coded set-up of series values, and a memo showing the last zoomed coordinates. If I had more time today I'd hard code these zoom coordinates for you. If I concentrate on zooming in the top left part of the chart, and keep going,I get a gre...
by Toreba
Thu Sep 27, 2012 10:58 am
Forum: VCL
Topic: Floating point overflow zooming in
Replies: 13
Views: 3151

Re: Floating point overflow zooming in

Yeray, I modified my oroginal project accroding to your suggested workround, as attached. If you maximise the form, zoom in far enough, say somewhere between the 10th and 25th zooms, then the plot area goes grey as in the attached image, but there's no error and you can still zoom in and out at this...
by Toreba
Wed Sep 26, 2012 2:00 pm
Forum: VCL
Topic: Floating point overflow zooming in
Replies: 13
Views: 3151

Re: Floating point overflow zooming in

Yeray, Yes, that works, thank you very much. The software now doesn't crash, but at one point during the sequence of zooms the chart plot area fills with grey and no series are visible, but we can zoom or unzoom out of that and continue working with the chart as normal. I think we can live with that...
by Toreba
Tue Sep 25, 2012 4:34 pm
Forum: VCL
Topic: Floating point overflow zooming in
Replies: 13
Views: 3151

Re: Floating point overflow zooming in

Thanks Yeray. When's the next maintenance release? In the meantime, it doesn't seem possible to trap the error, and when it occurs the default unzoom behaviour no longer works, so users have to rebuild the chart. If you know the fix, then do you also know whether there is an obvious way of predictin...
by Toreba
Thu Sep 20, 2012 5:28 pm
Forum: VCL
Topic: Floating point overflow zooming in
Replies: 13
Views: 3151

Re: Floating point overflow zooming in

Hi, I've attached a an example project. If you keep zooming then the error will occur sooner or later, usually somewhere between the 3rd and 15th zoom. Sometimes zooming where there's no data seems to produce the error sooner. I know it seems unlikely that a user would usefully zoom in 15 times, but...
by Toreba
Thu Sep 20, 2012 12:48 pm
Forum: VCL
Topic: Floating point overflow zooming in
Replies: 13
Views: 3151

Floating point overflow zooming in

Hi, I have a chart comprising a TAreaSeries and some TLineSeries. After a number of successful zoom-in operations without unzooming, I get 'floating point overflow'. Is this something to do with the chart being unable to calculate a tick increment? Is there a way to anticipate the error? Thanks Trev...
by Toreba
Mon Aug 13, 2012 12:19 pm
Forum: Wishes and ideas
Topic: TChartSeries custom properties
Replies: 3
Views: 4320

Re: TChartSeries custom properties

Sandra,

Thanks for the encouraging reply. I think we'd like to try modifying the source code, but I don't think your web site prices have updated to reflect the 2012 release. Is it possible, or do we have to wait for our current subscription to lapse?

Regards

Toreba
by Toreba
Mon Aug 13, 2012 11:32 am
Forum: VCL
Topic: Inverted THistogramSeries won't fire OnClick event
Replies: 6
Views: 2146

Re: Inverted THistogramSeries won't fire OnClick event

Sandra, I referred to the OnClick event of the THistogramSeries, not that of the chart. If you modify your project to include the something like the simple code below, you'll see, I hope, that the event is fired only when the left axis is not inverted. procedure TForm3.Series1Click(Sender: TChartSer...
by Toreba
Sat Aug 11, 2012 8:48 am
Forum: Wishes and ideas
Topic: TChartSeries custom properties
Replies: 3
Views: 4320

TChartSeries custom properties

Hi, It would help my software development if TChartSeries carried extra customisable properties, e.g. an object pointer. Is that possible? For example, for me, details such as the real-world source of the data (e.g. a gauge name or location), the variate the data represents and its units, would all ...
by Toreba
Sat Aug 11, 2012 8:11 am
Forum: VCL
Topic: Inverted THistogramSeries won't fire OnClick event
Replies: 6
Views: 2146

Inverted THistogramSeries won't fire OnClick event

Hi,

Using TeeChart Pro 2012.06.120613 32-bit VCL in Delphi 2007, a THistogramSeries on an inverted left axis won't fire its OnClick event. But it seems fine on non-inverted axes, and other series types seem fine on inverted axes.

Can you confirm this please?

Regards

Trevor Cooper