[Lazarus] Using a DateTimeIntervalChartSource in TAChart
I am trying to create a line graph where the X axis is a zoomable TDateTime value and I believe that I need to use a DateTimeIntervalChartSource However, I cannot seem to work out how to add values to it. You don't have to. The DateTimeIntervalChartSource gets the values from the axis it is assigned to. Here's what you have to do: * Set up your chart as usual * Add a TDateTimeIntervalChartSource. If you want to have the date/times along the x axis select Chart.BottomAxis.Marks.Source to point to it. Also, set Chart.BottomAxis.Marks.Style to smsLabel. In general, use the axis at which you want to have the date/times. * You may want to play with its properties a bit to optimize its output. For example increase Intervals.MinLength and/or MaxLength to avoid overlapping of labels. * To be honest I don't fully understand the effect of the Steps property. I have the feeling that you have to turn off those options which you don't want to have in the labels. --- Alle Postfächer an einem Ort. Jetzt wechseln und E-Mail-Adresse mitnehmen! Rundum glücklich mit freenetMail -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Crash (SIGABRT) with TDateEdit
http://bugs.freepascal.org/view.php?id=26766 1) Create an New empty app 2) Put a TDateEdit on it 3) Run it (that's it) 4) Maximize the form 5) Click the button to activate the calendar popup CRASH -- Atenciosamente, Alexsander da Rosa -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Crash (SIGABRT) with TDateEdit
Il 23/09/2014 22:16, Alexsander Rosa ha scritto: http://bugs.freepascal.org/view.php?id=26766 1) Create an New empty app 2) Put a TDateEdit on it 3) Run it (that's it) 4) Maximize the form 5) Click the button to activate the calendar popup CRASH Here the same happens with 1.2.2 and both GTK2 and Qt. But in 1.3 (trunk) works just fine. No crashes (neither GTK2 nor Qt). Giuliano -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Crash (SIGABRT) with TDateEdit
On 9/23/14, Alexsander Rosa alexsander.r...@gmail.com wrote: http://bugs.freepascal.org/view.php?id=26766 Already fixed in trunk (r46115). It will be merged into next fixes release. Bart -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
Re: [Lazarus] Using a DateTimeIntervalChartSource in TAChart
* You may want to play with its properties a bit to optimize its output. For example increase Intervals.MinLength and/or MaxLength to avoid overlapping of labels. * To be honest I don't fully understand the effect of the Steps property. I have the feeling that you have to turn off those options which you don't want to have in the labels. Thanks very much Werner, that was a great help. Where can I find the Intervals.Min and MaxLength properties? Richard -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] Using a DateTimeIntervalChartSource in TAChart
Where can I find the Intervals.Min and MaxLength properties? MinLength and MaxLength are sub-properties of the Params of the DateTimeIntervalChartSource. Sorry, I confused it with the property Intervals of the Axis... -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
[Lazarus] LazReport - Group bands
I only wanted a list of unique entries for a key field. So I selected the Group Header band and for Condition selected that key field. I then inserted a Rectangular Object on the band and for dbfField selected the same key field. But Preview showed only a blank page. What else do I have to do? Double karma for the best way to show the number of entries for each key field. Thanks. A. G. -- ___ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
