Hello, Everything in OnAfterDraw is called every time the Chart is rendered. If you put boolean conditions in there, like: if myCondition runCustomDrawCode end if then you can control i t being called by setting the condition to true or false ... Calling Chart.Repaint causes the chart to render and ...

Hello, The resize can be fully automated if the render format is javascript. I've added resize code to the Line example here: https://github.com/Steema/TeeChart-NET-Pro-Samples/blob/main/Web-API/NET%20Framework/TeeChart%20WebDemo/Interacting%20with%20Charts/JScript-HTML5%20Live%20Charts/JLineChart.a...

Hello, I have tried this in a new environment. Runs ok. Is it possible that your test machines are running security software that may be inhibiting the creation of windows objects/handles? Perhaps running the example across several machines may give a hint by more easily identifying what machines ge...

Hello, I can't reproduce this problem straight-off. I created a new VCL Forms project in RAD Studio 11 using TeeChart v2022.34.220329 and added a Bar and FastLine Series using the Editor. I then set the Fastline datasource to Function:Average and the source as Series1. I ran the project and it compi...

Hello,

No; if that works ok for you that's fine, ignore my recommendation. I've made a note of the issue I encountered as it may affect other projects with a different buffer setting.

Regards,
Marc

Hello,

We have been able o reproduce point 2 and are working to resolve it.

Regards,
Marc Meumann

hello, sorry, missed your post here. Thanks for the feedback; TeeChart is using a buffer that is still null and not checked-for when the chart is created and destroyed without a render. We'll fix it. In the meantime you'll need to create some kind of render, export a bitmap to a stream or similar, t...

Hello, The chart needs to render before it can run the zoom on what would be the rendered dimensions. You could achieve that this way, removing the call to SetZoom from the initialisation code and adding a one-time call in the Chart OnAfterdraw event: bool hasLoaded = false; private void tChart1_Aft...

....there's a live example of that here:

http://www.steema.net/TeeChartForNET/In ... hart.aspx

Hello, There is some demo code here: https://github.com/Steema/TeeChart-NET-Pro-Samples/tree/main/Web-API/NET%20Framework/TeeChart%20WebDemo/Interacting%20with%20Charts/Drill%20Down/AggregationAndDrillDown That is a Pro project but the functionality/code is applicable to the standard version. Regard...

Hello Geomisure, In the sample code you sent, the multiplication (x 2) for the height has been omitted, hence the Charts are only filling half the page. ie. should be:; t1.Export.Image.PNG.Save(s1, t1.Bitmap((doc.PageWidth / 3 * 2), doc.PageHeight * 2), doc.PageWidth / 3, doc.PageHeight); t2.Export....

Hello Geomisure, Re. for second option Are you referring to the use of this code? t1.Export.Image.PNG.Save(s1, t1.Bitmap((doc.PageWidth / 3 * 2), doc.PageHeight * 2), doc.PageWidth / 3, doc.PageHeight); t2.Export.Image.PNG.Save(s2, t2.Bitmap((doc.PageWidth / 3 * 2), doc.PageHeight * 2), doc.PageWidt...

Hello Geomisure, I'll have a think about options. One might be to increase the resolution of the bitmap. You may need to up font sizes. ie. t1.Export.Image.PNG.Save(s1, t1.Bitmap((doc.PageWidth / 3 * 2), doc.PageHeight * 2), doc.PageWidth / 3, doc.PageHeight); t2.Export.Image ...etc Regards, Marc

Hello Geomisure,

I'm not seeing an obvious reduction in quality. I attach the output obtained printing to pdf from your test project. Is this what you're expecting to see?

Thanks,
Marc

Hello Geomisure, I've been able to take a look at the code and run it. The settings here: Chart.Export.Image.Bitmap.Save(s1, Chart.Chart.Bitmap(doc.PageWidth / 3, doc.PageHeight), doc.PageWidth / 3, doc.PageHeight); Chart.Export.Image.Bitmap.Save(s2, Chart.Chart.Bitmap(doc.PageWidth / 3, doc.PageHei...