Yeray,
I think it's the first of these properties that doesn't work, at least using v2014.12.140923 32-bit in XE7. It's easy to show with a simple demo. Do you need me to provide one?
Regards
Toreba
Search found 29 matches
- Wed Apr 27, 2016 1:47 pm
- Forum: VCL
- Topic: THistogramSeries % Bar Width
- Replies: 10
- Views: 19897
- Mon Apr 25, 2016 3:35 pm
- Forum: VCL
- Topic: THistogramSeries % Bar Width
- Replies: 10
- Views: 19897
Re: THistogramSeries % Bar Width
Yeray,
I'm sorry, I was wrong (again). THistogramSeries works fine, and doesn't offer a % bar width property. It is In fact TBarSeries for which the property makes no sense. Do you agree with that?
Regards
Toreba
I'm sorry, I was wrong (again). THistogramSeries works fine, and doesn't offer a % bar width property. It is In fact TBarSeries for which the property makes no sense. Do you agree with that?
Regards
Toreba
- Wed Apr 20, 2016 5:13 pm
- Forum: VCL
- Topic: THistogramSeries % Bar Width
- Replies: 10
- Views: 19897
THistogramSeries % Bar Width
Hi, What does this property do? Setting it to 100% produces bars that overlap. The value I need to obtain non-overlapping bars is much less than this, but varies according to the zoom. What does 100% mean? There seems not to be any help for this class. I'm using in TeeChart Pro v2014.12.140923 32-bi...
- Wed Apr 20, 2016 12:37 pm
- Forum: VCL
- Topic: Refreshing a chart containing half a million points
- Replies: 5
- Views: 9372
Re: Refreshing a chart containing half a million points
Yeray,
Actually I was wrong. The Hover property makes a massive difference when plotting these many points, and the problem disappears if I switch it off.
Sorry for the mistake, and thanks for your advice. Very helpful as ever.
Regards
Toreba
Actually I was wrong. The Hover property makes a massive difference when plotting these many points, and the problem disappears if I switch it off.
Sorry for the mistake, and thanks for your advice. Very helpful as ever.
Regards
Toreba
- Mon Apr 18, 2016 12:05 pm
- Forum: VCL
- Topic: Refreshing a chart containing half a million points
- Replies: 5
- Views: 9372
Re: Refreshing a chart containing half a million points
Hi Yeray, Thanks for your advice. I disabled the hover feature, but this did not seem to have much effect. Which a much smaller chart comprising 2500 data values in a THistogramSeries, it looks as if something else is going on as the user moves the mouse anywhere on the TChart (including the legend)...
- Mon Apr 11, 2016 5:44 pm
- Forum: VCL
- Topic: Refreshing a chart containing half a million points
- Replies: 5
- Views: 9372
Refreshing a chart containing half a million points
Hi, A user has generated a chart containing multiple series including a THistogramSeries with nearly 200,000 data values, and another TLineSeries containing nearly 250,000 points. You may ask why they do this, as there's no way you can see the detail of so many points on one chart. But, once generat...
- Mon Apr 11, 2016 5:26 pm
- Forum: VCL
- Topic: Scope of TChart.Assign method
- Replies: 9
- Views: 16432
Re: Scope of TChart.Assign method
Yeray, That's not quite what I'm trying to do. The saved chart stores properties of the TChart and properties of each of its TChartSeries. I want to recover these series properties as well as the chart properties. If I slightly modify your code as below, then clicking the button updates Chart2 with ...
- Fri Apr 08, 2016 4:23 pm
- Forum: VCL
- Topic: Scope of TChart.Assign method
- Replies: 9
- Views: 16432
Re: Scope of TChart.Assign method
Yeray, Ah yes, I see what you mean. In fact, what I'm trying to do is allow a user to reset all display attributes of a chart by picking a template, i.e. a saved graph with no data, previously streamed to a database BLOB field using SaveChartToStream. But once the saved chart is retrieved, there doe...
- Tue Apr 05, 2016 9:57 am
- Forum: VCL
- Topic: Scope of TChart.Assign method
- Replies: 9
- Views: 16432
Scope of TChart.Assign method
Hi, The TChart.Assign method seems not to copy series attributes, such as colour and title. To copy series attributes, I have to use separate TChartSeries.Assign calls. But I don't have to do this with TChartAxis. The TChart.Assign method copies axis attributes but not series attributes. Is this the...
- Fri Mar 11, 2016 11:04 am
- Forum: Wishes and ideas
- Topic: View your posts - would like it to show all my posts
- Replies: 3
- Views: 33393
Re: View your posts - would like it to show all my posts
Hi,
Any further news on this suggestion since two years ago?
Regards
Toreba
Any further news on this suggestion since two years ago?
Regards
Toreba
- Wed Mar 02, 2016 5:13 pm
- Forum: VCL
- Topic: Saving charts to stream with extra properties
- Replies: 3
- Views: 7623
Re: Saving charts to stream with extra properties
Yeray, Wow, I didn't know I could do any of that, and it works! Though I notice that if my extra properties are published rather than public, then they appear in the streamed version anyway, it seems, but that default mechanism can't cope with enumerated types. So if I also add them using the method...
- Tue Mar 01, 2016 2:44 pm
- Forum: VCL
- Topic: Saving charts to stream with extra properties
- Replies: 3
- Views: 7623
Saving charts to stream with extra properties
Hi, I find it very useful to stream complex charts into a database blob field for use as templates. But I need to save extra properties for each series such as the gauging location and variate the data represents, the file from which the data comes, and the index of the series in that file. I can su...
- Thu Oct 29, 2015 7:44 am
- Forum: VCL
- Topic: TChart.AdjustMinMax wrong for inverted axis
- Replies: 1
- Views: 4825
TChart.AdjustMinMax wrong for inverted axis
Hi, I am using TeeChart Pro 2013.09.131119 32-bit VCL in Delphi XE5. I create a TChart with an inverted non-automatic left axis. Adding more series and I then need to reset the extents of the non-automatic axis. To get the extents of the data plotted so far I execute these two lines: TargetAxis.Auto...
- Mon Oct 26, 2015 11:33 am
- Forum: VCL
- Topic: TChartSeries.CalcFirstLastVisibleIndex not quite as expected
- Replies: 5
- Views: 14847
TChartSeries.CalcFirstLastVisibleIndex not quite as expected
Hi, I am using TeeChart Pro 2013.09.131119 32-bit VCL in Delphi XE5. I have a series of three points plotted against a date-time x-axis. I set the x-axis extents such that the axis minimum has the same x-value as the first point, and the axis maximum has the same x-value as the last point. I run TCh...