Search found 9 matches
- Wed May 27, 2020 5:07 pm
- Forum: VCL
- Topic: Installing TChart for Delphi 10.4
- Replies: 3
- Views: 16678
Re: Installing TChart for Delphi 10.4
I also interested in this. Website reports that build: 2020.29.200113 has 10.4 support at page https://www.steema.com/product/vcl Version info for Release 2020.29.200113 does not support that "=============================================== Release Notes 13th Jan 2020 TeeChart VCL/FMX version 2020 B...
- Mon Apr 15, 2019 1:54 pm
- Forum: VCL
- Topic: Drawing big plots
- Replies: 4
- Views: 12510
Re: Drawing big plots
Idea for a new feature. How dificult would be to add a feature like that pseudo code from here: TChart->BeginUpdateFromThred() - TChart draw on GUI, and if something needs to be draw gets draw on a temporary Bitmatp - User calls to Canvas methds draw on the temporary Bitmap - Then TChart canvas rend...
- Mon Apr 15, 2019 1:11 pm
- Forum: VCL
- Topic: Drawing big plots
- Replies: 4
- Views: 12510
Re: Drawing big plots
Ok .Thanks.
- Thu Apr 11, 2019 2:21 pm
- Forum: VCL
- Topic: Drawing big plots
- Replies: 4
- Views: 12510
Drawing big plots
I'm using TeeChart VLC with C++ Builder Pro Tokyo. I have an application that has a lot of plots and sometimes with a lot of points. The applciation is very dynamic so the plots get redraw many times. As far as I know VLC UI can only be updated via main thread, leaving to the main thread only the ta...
- Wed Jul 11, 2018 9:28 am
- Forum: VCL
- Topic: TeeChart direct access to data
- Replies: 8
- Views: 21941
Re: TeeChart direct access to data
Yeray, I will take a look a the example and see if that could be a solution for my problem. When I did it years ago I only declared virtual a function on the TChart sources and I was able to do the customization on my side and was quick. But I don't have the sources anymore and I don't remember what...
- Mon Jul 09, 2018 6:16 pm
- Forum: VCL
- Topic: TeeChart direct access to data
- Replies: 8
- Views: 21941
Re: TeeChart direct access to data
Yeray, The pointer does not do the trick to my problem because I still I have to have a copy of the data in a array of doubles somewhere that is consecutive in memory. Every time the visualization condition changes. I cannot use the TFastLineSeries because I use features that are not available on th...
- Mon Jun 25, 2018 4:57 pm
- Forum: VCL
- Topic: TeeChart direct access to data
- Replies: 8
- Views: 21941
Re: TeeChart direct access to data
>> >>Not only. I use all sort of non DB series. Does what you said about TChartValueList applies to all series? >> Yes, all the series inherit from TeeChartSeries, and there's where the XValues and YValues properties are declared as TChartValueList. Some series add extra arrays, like the 3D series, ...
- Fri Jun 22, 2018 9:44 am
- Forum: VCL
- Topic: TeeChart direct access to data
- Replies: 8
- Views: 21941
Re: TeeChart direct access to data
>> Hello Javier, Hi Yeray! Thanks for your reply >> I imagine you are working with a TFastLineSeries Not only. I use all sort of non DB series. Does what you said about TChartValueList applies to all series? >> As all the series, this series has XValues and YValues properties, which are instances of...
- Wed Jun 20, 2018 9:26 am
- Forum: VCL
- Topic: TeeChart direct access to data
- Replies: 8
- Views: 21941
TeeChart direct access to data
Hi All, Time ago, back to 2001 I was working in an application with C++ Builder that required frequent plot updates of a lot of points in a TimePlot. All I tried to make it faster was not fast enough, and then I took a look at the sources and I've found that I could make virtual one method (I can't ...