Search found 7 matches

by Kenselting
Sun Jul 02, 2017 10:34 am
Forum: LightningChart Ultimate WinForms
Topic: PointLineSeries PointsVisible performance issue with large d
Replies: 9
Views: 16980

Re: PointLineSeries PointsVisible performance issue with lar

Thanks for your feedback - glad this could help you find an issue. In my specific case, my filtering "bypass" is adequate in that I'll allow the user to have EITHER the line OR the markers, so I can just filter those NaNs for cases when only markers are shown (and not for lines, where I do...
by Kenselting
Wed Jun 28, 2017 5:28 pm
Forum: LightningChart Ultimate WinForms
Topic: PointLineSeries PointsVisible performance issue with large d
Replies: 9
Views: 16980

Re: PointLineSeries PointsVisible performance issue with lar

Hi - I created a sample solution that shows the problem. In the form, you have the option to show the line, markers and filter NaNs (before creating the series). You will see that the problem happens as soon as you want to show Markers and do not filter the NaNs. I hope this helps anbd thank you in ...
by Kenselting
Wed Jun 28, 2017 4:04 pm
Forum: LightningChart Ultimate WinForms
Topic: PointLineSeries PointsVisible performance issue with large d
Replies: 9
Views: 16980

Re: PointLineSeries PointsVisible performance issue with lar

Give me a few days to create a new, isolated project for this (the project is too large and depends o external resources, so I can't send it as is). I looked at the ChartError event - only got the DPI awareness warning in there - which I fixed, of sorts - but no change in performance. No other error...
by Kenselting
Tue Jun 27, 2017 8:03 pm
Forum: LightningChart Ultimate WinForms
Topic: PointLineSeries PointsVisible performance issue with large d
Replies: 9
Views: 16980

Re: PointLineSeries PointsVisible performance issue with lar

Hi, Thanks for getting back to me. I think I checked all the boxes you mentioned... Here is my code: var mos = new PointLineSeries(_chart.ViewXY, xAxis, _chart.ViewXY.YAxes[(int) seriesProperties.Axis]) { PointsVisible = true, LineVisible = false, Points = itemData.Where(x => !double.IsNaN(x.Value))...
by Kenselting
Sat Jun 24, 2017 5:27 pm
Forum: LightningChart Ultimate WinForms
Topic: PointLineSeries PointsVisible performance issue with large d
Replies: 9
Views: 16980

PointLineSeries PointsVisible performance issue with large d

I have a chart with a single PointLineSeries, displayed with no Line, Points only. The X axis is a DateTime. The series has approximately 250k data points, most of them defined as NaN due to an underlying data issue: the series effectively has 5 data points that are not NaN. While I can fix the unde...
by Kenselting
Tue Apr 25, 2017 10:29 am
Forum: LightningChart Ultimate WinForms
Topic: Moving AnnotationXY box to select data points
Replies: 2
Views: 9767

Re: Moving AnnotationXY box to select data points

Pasi, Thank you - that indeed worked. It took me a while however to figure out why, as I could see little difference between that code and mine. For anyone who might run into the same problem, I finally narrowed this down to me setting the Anchor to 0,0 - As soon as I removed that form the initializ...
by Kenselting
Mon Apr 24, 2017 3:55 pm
Forum: LightningChart Ultimate WinForms
Topic: Moving AnnotationXY box to select data points
Replies: 2
Views: 9767

Moving AnnotationXY box to select data points

I have been trying to use an AnnotationXY item to provide a functionality to select data point in a rectangle on an XY chart. Following the basic details here: https://www.arction.com/forum/viewtopic.php?f=16&t=207 I am able to create the box and size it properly when using the screen coordinate...