LightningChart Support Forums

Hello. I am a bit confused by how the axis methods ValueToCoord and CoordToValue work. I have LC v.2015.12.18.4001 (6.5.6 ?) for WinForms. I created Chart (size in pixels is about 600*300) with axes X(min: -1, max: 1) and Y(min: -1, max: 1). When I converted X zero value to coordinate I got value 33...

Thanks for feedback

Hello. I have some polygons with property "Behind" is set to false. Is it possible to cross these polygons with line (PointLineSeries or something else..) and line should be on the top (overlap the polygon)? And "Behind" of polygons should stay in "false" state. behind ...

Hello.
I have some lines (objects of PointLineSeries or FreeFormSeries..) and would like to determine where they cross each other. And I would draw some "marker" in this place and get X,Y coordinate of this place.
Does Lightning Chart have any API to help me with it?
Thank you.

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Hello,

Where it is possible to download the LightningChart Ultimate version 6.5.5 with TweakDisablePresent and TweakEnabledPresent methods?

Thanks

Hello,

I need to calculate the Legend size before the first rendering.
But I can't understand to what algorithm is used in case of partition of elements of a legend to the lines and columns in modes HorizontalRowSpan and VerticalColumnSpan.
You can help me with this problem?

Thank you.

Hello,

When I changed the width of LegendBox Border, distance between lines in legend box changed too. (See attachments)

Whether it is possible to make so that in case of change of width of border the distance between lines didn't change?

Thanks

Hello. I draw a figure like airplane (for example) in Lightning Chart. I have a array of points for this and draw it with LineCollections series in Lightning Chart. On the screenshot below is a sample of view that I have in the result. plane 01.png I would like to rotate this figure through an angle...

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Thanks for the feedback too.

Thanks for the good example!

It's a 3D pie in LightningChart, and ViewPie3D.Camera.Target sets the center of the viewpoint. If using a perspective camera, ViewDistance sets the zooming level. Alternatively you can call ViewPie3D.SetPieSize method. Rectangle zooming is not available in View3D or ViewPie3D. I tried to zoom Pie (...

Hello, I use Pie3d chart with orthographic camera (for view like 2D). I would like to disable mouse highlighting when I place mouse cursor over the slice of pie. I tried to set "pieSlice.MouseHighlight = MouseOverHighlight.None" but without success - slice is still highlighted. Also I trie...

Hello, I use Pie3d chart with orthographic camera (for view like 2D). In Legend (LegendBox3DPie) I see quite large padding between series titles that I didn't see in ViewXY Legend. LegendBox3DPie.png I would like to reduce this padding but haven't found any abilities for this. Could you suggest how ...

Thank you, we'll play with ViewDistance

Hello,

I've not found any "fill" options in Pie chart yet. So looks like we can't fill slice of the Pie with some image or something else. Is it true? Could you suggest how can I do something like this: Thank you.

Hello,

I would like to zoom Pie chart. In our application we use selection area for zooming (look at the screenshot): Could you suggest how to do this in Lightning Chart? Or at least how can I zoom part of Pie?
Thank you.

Hello, I use LC for WinForms and have to break line when receiving NaN (as point value) from other application. The general problem that I mustn't set NaN (or Infinity) to LC. I solve it with internal buffer in my program and don't set to LC values like NaN. I've asked about approaches of line break...

CustomLinePointColoringAndShaping event works fine but has one disadvantage - it works with a solid line style only. Is it possible to break the line with style dotted or dashed with this event or with something except ClipArea?

ArctionPasi wrote:ClipAreas clips all the line segments of selected range.

Maybe you could try if you can achieve your goal with series.CustomLinePointColoringAndShaping event? In there, you would have to set transparent colors for two coordinates.

Thank you, I'll try this event.

Don't use Nan or Infinity values in series. They are not supported. Use only regular numeric values. To mask off certain parts of series data, you can use ClipAreas. I use FreeformPointLineSeries and may have case when order of X values is not only ascending. So I want to avoid a situation like thi...

Hello, I used LC (LightningChart) for WinForms and use Freeformseries for drawing lines with points. In some cases I don't want to draw some points in series. For example first or last 10 points - I get this information form other application. I thought that I can do this by filling the double.NaN o...

Hello. Is it possible to draw many Pies on the single chart in LightningChart? I would like to make something like this: many pies.jpg I see the one way - create many charts with ActiveView = ViewPie3D but may be you suggest other approach (not so complicated and without problem with many Legends)? ...

Hello.
I use Bars and see that LC draws bar from 0 (zero) to some Value (at Y axis for example).
Is it possible to draw bar not from zero? For example from -10 to -5 ?
Thank you.

Whether it is possible to place some series of bar with the same value of X.
That is, if there are points in a 3 series with values 10,20,30 that Y was to 30, but not the to 10+20+30, and we see only the third series?

Hello. I would like to use Bars: some series I assign to Y1 axis and some series to Y2 axis. But location and indexes are the same. For example: series1: location: 0 , value: 10 , index: 0 (1 value) - Y series2: location: 0 , value: 15 , index: 0 (1 value) - Y series3: location: 0 , value: 10.5 , in...

Hello. Fonts in axis labels are blurry in Lighting Chart in my pc (and in other pc when I tested too). You can see this issue in screenshot below font question.jpg I tried to change FontsQuality and AntiAliasLevel properties in LC and 3D->Textures quality property of my video card (Intel graphics). ...

Hello, Is it possible to make some relationship between several Y axises? For example I have Y1 and Y2 and would like to change Y2 min/max automatically like Y1.min * 1.2 etc. I can do it manually in range changed event handler but it will be useful to set relationship one time if it needed. Thank y...

Hello. Axis AutoDivSpacing = true is good for me but I would like to get properly MajorDiv and MajorDivCount values and use these (show to user, write to file, etc.). But when AutoDivSpacing is true they are not correct. For example (see screenshot 1) for minimum 0 and maximum 100 I see on the graph...

Hi.
I would like to set axis minimum = double.MinValue and to maximum = double.MaxValue.
But after this attempt Lighting Chart hangs. What the "big" and "small" value I can set to axis min and max in the beginning of work with LC?
p.s. WinForms, C#
Thank you.

How about storing range revert min/max as I wrote and use those values with SetRange method instead of Zoom method? This should work if you don't want to use mouse for zooming. Or actually you can store the values in your own variables for clarity. Which way feels more natural. Use X or Y axis' Min...

Range reverting might be the best choice for you. Just set ViewXY.ZoomPanOptions.RightToLeftZoomAction to RevertAxisRange and update axis' RangeRevertMinimum and RangeRevertMaximun properties after each range change so that chart knows where to revert next when right-to-left zooming is performed. O...

Hello. It's a simple question but.. how can I cancel zooming? I did Zoom(...) and after some user actions I want to return to original view. Or I select region on graph and after some action want to return to original view.. I've found RevertAxisRanges and PopFromZoomStack but I'm not sure that it i...

You could set e.Handled = true in legend box's MouseUp event handler. This will prevent the event from being sent any further. I would use chart's ContextMenu property instead. I.e. set chart's context menu directly to ContextMeny property and handle legend box's context menu with MouseUp event. I ...

Hello all. I've created handler for MouseUp (tried MouseClick too) event for Chart and show my custom context menu. But I would like to show other context menu when I click on LegendBox. I've created handler for ViewXY.LegendBox.MouseUp (tried MouseClick too) but: in the first step I'm in handler fo...

Thank you, I'll try it.

Hello. I use LightningChart for WinForms and I need to fix asix X at zero on asix Y. You can see what I want to reach on the attached screenshot fixed zero question 1.jpg Could you give me some advice about it? I've done it with Postion property changing but it's very complicated way, I think. I hop...