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Bug 93
| Summary: | The pointer of Horizontal Line can't be drawed clearly | ||
|---|---|---|---|
| Product: | FireMonkey TeeChart | Reporter: | elmec <wave> |
| Component: | Series | Assignee: | Steema Issue Manager <issuemanager> |
| Status: | IN_PROGRESS --- | ||
| Severity: | major | CC: | david, narcis |
| Priority: | --- | ||
| Version: | 131016 | ||
| Target Milestone: | --- | ||
| Hardware: | PC | ||
| OS: | Windows | ||
| URL: | http://www.teechart.net/support/viewtopic.php?f=3&t=14482&start=0 | ||
| Chart Series: | --- | Delphi / C++ Builder RAD IDE Version: | |
| Attachments: | XE4 Firemonkey HD Application | ||
There's a problem with the bottom axis range. Commenting out the line below points are visible. //Chart1->BottomAxis->SetMinMax(-0.3, 0.3); Setting Pointer.Pen.Color to clTeeColor works: Series2->Pointer->Pen->Color=clTeeColor; (In reply to elmec from comment #0) > Created attachment 17 [details] > XE4 Firemonkey HD Application > > There is no Horizontal Point Line, > so I using the Horizontal Line, and set the Pointer as visible, > change the transparency to 100 to hide the line between pointer > to make it just looks like as TPointSeries. > > But just like shown in the attachment, > when there are a lot of points , > they are drawed overlaping each other, cannt be shown clearly. > When I zoomin the series, it became clearly drawed. > > BTW, I am using > XE4 Firemonkey HD Application and Teechart201308 for XE4. FireMonkey Direct2D canvas is "blending" pixels when they are painted overlapped using borders instead of filling. One setting that makes all points visible is to disable the Pointer->Pen like: Series2->Pointer->Pen->Hide(); However, I've been trying to discover how to deactivate this "blending" effect. Setting canvas to GPU does not do blend, but other parts like text don't look good: // ProjectPointer.cpp extern "C" int FMXmain() { try { GlobalUseGPUCanvas=true; // <--------- added this line Application->Initialize(); ...... Another property that should work fine (but it fails), is setting the form quality to "high performance" to disable pixel "blending": __fastcall TForm12::TForm12(TComponent* Owner) : TForm(Owner) { Quality=TCanvasQuality::ccHighPerformance; // <----- this line .... I'm investigating why FireMonkey is painting it correctly first time, and then inmediately is painting again with ccHighQuality. Not sure if its a TChart bug or FireMonkey, as it does the same in "XE5 Update 1" Hope its fine for you to just hide the Pointer->Pen, and we'll investigate how to deactivate "blending" in the near future. (In reply to david berneda from comment #3) > > One setting that makes all points visible is to disable the Pointer->Pen > like: > > Series2->Pointer->Pen->Hide(); My previous comment was incomplete. That's only true with psRectangle but fails with psSmallDot. (In reply to narcís calvet from comment #4) > (In reply to david berneda from comment #3) > > > > One setting that makes all points visible is to disable the Pointer->Pen > > like: > > > > Series2->Pointer->Pen->Hide(); > > My previous comment was incomplete. That's only true with psRectangle but > fails with psSmallDot. Yes, psSmallDot is currently done with a line pen of length 1. |
Created attachment 17 [details] XE4 Firemonkey HD Application There is no Horizontal Point Line, so I using the Horizontal Line, and set the Pointer as visible, change the transparency to 100 to hide the line between pointer to make it just looks like as TPointSeries. But just like shown in the attachment, when there are a lot of points , they are drawed overlaping each other, cannt be shown clearly. When I zoomin the series, it became clearly drawed. BTW, I am using XE4 Firemonkey HD Application and Teechart201308 for XE4.