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+----- Thread: Using IWChartJS (/thread-2802.html)
Using IWChartJS - Alexandre Machado - 07-19-2022
Hi guys,
a new demo showing how to use the new IWChartJS component with IntraWeb. Super easy to create amazing charts. Check it out:
https://github.com/Atozed/IntraWeb/tree/master/15/Delphi/ChartJS
[attachment=512]
RE: Using IWChartJS - PaulWeem - 07-20-2022
Hi Alexandre,
Thank you very much for this demo, very helpful.
Just one question: How do I combine a Bar and and a Line in one chart?
Thanks in advance!
Cheers, Paul
RE: Using IWChartJS - Alexandre Machado - 07-21-2022
Hi Paul,
I'm glad that you liked the demo.
This is a missing bit that it's ready but I couldn't test before releasing the latest update (15.2.64) so it hasn't been included, but we are going to release it in a few days.
To combine 2 different charts in one, you just need to create a second series with a different chart type.
If you check the third chart in that demo, I create 1 additional series (the main series is built-in).
For instance, to change the second series to a line, you can do this:
// create a second series here
SecondSeries := IWChartJS4.AddSeries(ctLine, 'Year 2050');
Then you will have the main series as a bar chart and the second series as a line one. Simple :-)
RE: Using IWChartJS - PaulWeem - 07-21-2022
Hi Alexandre,
Thank you for your response. I tried creating a second series as a ctLine, and I can confirm that this doesn't work.
Whatever I try, the Chart keeps showing all series as the ChartType initially set on the TIWChartJS itself.
Cheers, Paul
RE: Using IWChartJS - Lorbass - 07-27-2022
(07-21-2022, 07:59 AM)PaulWeem Wrote: Hi Alexandre,
Thank you for your response. I tried creating a second series as a ctLine, and I can confirm that this doesn't work.
Whatever I try, the Chart keeps showing all series as the ChartType initially set on the TIWChartJS itself.
Cheers, Paul
Great that now Charts are implemented!
But I can confirm what Paul says.
In addition, the legend display does not work correctly for all ChartTypes: ctPie works correct, ctBar does not.
Another question: Is it possible to generate stack bars?
Cheers, Detlef
RE: Using IWChartJS - Alexandre Machado - 07-29-2022
what do you mean the legend display do not work correctly for ctBar?
The example below is from the demo application. Seems to work correctly for me
[attachment=515]
RE: Using IWChartJS - Alexandre Machado - 07-29-2022
Regarding stack bars, yes, it will be possible in the next release