Arction Support Forums

ArctionKestutis

It also possible that Arction’s DLLs maybe missing next to application binaries. User should check that all DLLs listed in User's Manual chapter 29.1 Referenced assemblies are there. Next, you may want to refrain from changing Chart.RenderOptions.AntiAliasLevel during initial chart construction. Som...

ArctionKestutis

It is probably not Line-point itself, but SeriesEventMarker. Unless you disable Marker.AllowUserInteraction property, the markers handles mouse action in that location. At least that is behavior I see with latest version (it maybe not absolutely correct). If you see something else, please check vers...

ArctionKestutis

There is nothing special about virtual machine, which should prevent LightingChart running on it. Unless machine configured not to use accelerated GPU, low on memory or have no DirectX (at least 9.0c) support. Your image suggest that you may have thread problem. Please make sure that all Chart’s pro...

ArctionKestutis

All line-series (but FreeformPointLineSeries) support scrolling modes. PointLineSeries definitely do.

ArctionKestutis

After chart is rendered, you can read size and position of each bar with

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            System.Drawing.RectangleF[] aBarRect = chart.ViewXY.BarSeries[barIndex].GetBarRectangles();

ArctionKestutis

Hello, Can you show all the settings for XAxis. This include property settings and event handlers. I could image that label may disappear, if there is no space (too close to adjacent label). However, there is enough space in the image and that should happen only with CustomTick (normal tick removed ...

ArctionKestutis

Concept of Infinity is important in Algebra, but for numerical analysis done with computer it is dangerous path. Unless mathematical software package is design to deal with infinity, it is very likely source of the problems. Either you run get overflow error or just strange results. Keep your last p...

ArctionKestutis

Infinity is slippery thing. Don't use it unless you sure it is supported and do things as you intended.
Is it just report, is it problem description? Are there particular reasons why x-point should be at infinity?

ArctionKestutis

Most likely it is about DPI awareness. Even if user would be using WinForms platform, when the LightningChart is created it loads some WPF libraries and because of this the DPI awareness of the application is automatically changed. It changes to the WPF default of ‘system aware’, and the DIP-PX fact...

ArctionKestutis

Any update what ChartMessage tells? And whatever subscribing to event eliminated crashes?

ArctionKestutis

Dear Claudio, Your image and stack trace suggest that LightningChart instance at the moment of exception is Null. That is confusing part to understand, because ch could not be LightningChart and Null at the same time. If my assumptions are correct, then somewhere in the course of few lines ch was nu...

ArctionKestutis

Hello, The problems with remote connection and LightningChart are very rare. It is probably something specific for user’s environment and/or hardware. How reproducible is the crash? What is the sequence of steps? Is application crash only it was interrupted by RDP connection? Or app could not be sta...

ArctionKestutis

You can use _Chart.ViewXY.Zoomed event handler to read zoom range change from particular segment and apply same/proportional zoom to other YAxes.

All the best.

ArctionKestutis

Hi, LightningChart is primarily charting ( chart is a graphical representation of data ) component not virtual environment creation tool. However, LightningChart offers various ways to use geographical maps not only in 2D, but also in 3D. Please check our Interactive Examples App to see almost 200 e...

ArctionKestutis

Hi, Event CustomLinePointColoringAndShaping handle is not implemented for HighLow- or Area-Series. Primarily it is intended for LINE-SERIES, such as PointLineSeries, FreeformPointLineSeries. In addition, recently it was implemented for Polar View /Series. AreaSeries is far more than just a line, the...

ArctionKestutis

You could measure size of label and compare it to available space. The size of required text’s space could be measured with _chart.MeasureText(Text, Font) [please note that Chart.MeasureText(Text, Font) output in DIP units; use DpiHelper.DipToPx() where needed]. Space between Axis minimum and maximu...

ArctionKestutis

What is memory usage in your application. You could measure with 'Task Manager' or 'Process Explorer'? In addition, check how project build settings are: Platform target, and Prefer 32-bit options. If application is 32-bit, then due to .NET limitation application is not able to use more than 2GB mem...

ArctionKestutis

Hi, As you noticed already, dividing axis range into equally spaced intervals/ticks not always end up in nice rounded numbers. The main question, how do you convert the double values into label (string)? If you are calling .NET Value.ToString() method with no argument (IFormatProvider / string), the...

ArctionKestutis

Hello,

Yes it is possible to combine several generators into one output.
Check our Demo App example "SignalGenerator -> speakers", or WinForms Demo example "High-speed data, stacked axes".

Hope this helps.
All the best

ArctionKestutis

Hello, Yes, we are ware about such issue then number of SeriesEventMarkers goes above tens thousands. Actually we already have an improvement, but it is not released yet. The workaround is to use PointLineSeries instead. Individual point size is not possible for line-series, but you could create sev...

ArctionKestutis

Hi, ScrollBars.Value defines position of scrollbar-thumb. It should be between ScrollBars.Minimum and ScrollBars.Maximum . Relative position is calculated by ratio of those properties. Usaully on the Chart we want ScrollBars and AxisRange being synchronized. Therefore, LightningChart uses event hand...

ArctionKestutis

Hi, If you set _chart.ContextMenu = _contextMenu; then Menu will always opens on right-click on the Chart. However, you don’t need to set Chart.ContextMenu in order to show ContextMenu. In our Demo App "Annotations" example, we just have separate object, which is open on certain event & location. Ma...

ArctionKestutis

Hi,

Zooming on or with LightningChart will lead to Axis.RangeChanged event. You could use event handler to read new Axis range (minimum and maximum).
If you would like to ask about other space, please clarify the question.

All the best.

ArctionKestutis

Sorry for the delay. Where did you find those words in User's Manual? “ SignalGenerator ” as SignalTools component could not be used for data acquisition. It is for generating signal. SignalTools contains several components, which includes: SignalReader - generates real-time data stream reading sign...

ArctionKestutis

It is possible to change properties at any time: during construction of Chart, after RangeChange or mouse click event etc. However, in this context, you need to change ColorTheme as early as possible, because it overwrites many default internal colors. This will allow to modify specific properties a...

ArctionKestutis

Hello, Setting the ColorTheme will override majority of the object colors in the created chart. It is recommended first set the ColorTheme and then modify the object colors. Color theme (call) internally changes default colors for 50+ objects (e.g. background, Title, Axis, Ticks, Legendbox etc.). Yo...

ArctionKestutis

Hi,

If you don't want XAxis to change you can:
1. Set ViewXY.ZoomPanOptions.MouseWheelZooming = Vertical
2. Set ViewXY.ZoomPanOptions.AxisMouseWhellAction = None
3. Set ViewXY.ZoomPanOptions.PanDirection = Vertical
4. Set ViewXY.XAxis.MouseScrolling = False

Is this what you need?

All the best.

ArctionKestutis

Hi, Sorry for the delay. What does it mean 'weird'? If it is too many lines, then it is because you have Layered YAxes layout. You should disable visibility for some of Axis.MajorGrid.Visible . If you don't like grid color for this theme, you could change Axis.MajorGrid.Color property. Hope this hel...

ArctionKestutis

Hi, Yes, I understand your needs and your point. Unfortunately LegendBox wasn't designed for that. I will include it into requested features list. Annotation could be tied to Axis value as well as to screen coordinates. For example, annot.LocationCoordinateSystem = CoordinateSystem.ScreenCoordinates...

ArctionKestutis

Hello, Multiline series title in LegendBox currently is not supported. Therefore, you see this overlap as only one line is allocate per series. Annotation text is more flexible in such formatting (i.e. multiline text is supported there). Unfortunately, only one color per annotation is allowed. Serie...

ArctionKestutis

Hi, If it is indeed LightningChart SDK version 7.1.3.4006, then assemblies something like 3.5 year old. They are not very bad, but definitely luck some of debugging tools for the problem situation. Although, it is old version, I believe that list of required DLLs (to be delivered with your deployed ...

ArctionKestutis

Hello, The requested Chat looks very similar to Gantt chart (or at least same tool could be used). We previously describe in the forum how to make a simple Gantt chart with LightningChart(R) .NET. Please see https://forum.arction.com/viewtopic.php?f=23&t=1034 You can use Annotations (as in Forum’s p...

ArctionKestutis

Sorry for the delayed answer.
Could you give visual representation of your question.
My current understanding is based on assumption that want some scale-bar on the map. Is it true? There is some problem with 'scale' on the Earth's map. See for example this Wiki article.

ArctionKestutis

Hello, Thank you for posting question. However, several important pieces of information are missing. It is not obvious how LightningChart is connected in this context. The most effective way solving this issue is to provide test application, where issue could be replicated. If you have such applicat...

ArctionKestutis

Starting at least from v8.4.2.4001 issue should be fixed.
That is, points adding order and disabling/enabling PointCountLimitEnabled have no side effect (behaves as expected).
Therefore, it should be no data loss.

All the best.

ArctionKestutis

Hello, As User's Manual describes, 5.3.1 Real-time monitoring scrolling When making a real-time monitoring solution, the X axis must be scrolled to correctly show the current monitoring position, which usually is the time stamp of latest signal point. Set the latest time stamp to ScrollPosition prop...

ArctionKestutis

Hi, This start to look like we are building proof-of-concept application. This would be part of technical support which requires active LightningChart subscription. Therefore, I would like to ask you to send subscription ID directly to Arction Support (support [at] arction com). If you don't have on...

ArctionKestutis

Hi, We may need full crash-dump or your application for testing this. However, please make sure that you don't have one of two common mistakes in your application. Two most common mistakes (made by LightningChart users) are Sharing objects and not Thread-safe chart update . Please check that you fol...

ArctionKestutis

Few tip about Segmented layout could be found on following forum topic.

ArctionKestutis

Hi, If you want to hide/collapse YAxis/segment, it is better to use Segmented layout. A segment has only one property, Height. It is a relational size versus other segments. It is not defined in screen pixels, as they need to rescale with the chart's size. The Y axes can be assigned with a segment b...

ArctionKestutis

The issue was fixed in the latest (v8.4.2.4001) LightningChart release.
All the best.

ArctionKestutis

The issue was fixed in the latest (v8.4.2.4001) LightningChart release.
All the best.

ArctionKestutis

The issue was fixed in latest (v8.4.2.4001) LightningChart release.
All the best.

ArctionKestutis

Actually Series.Visible property and LegendBox checkbox are tightly bind.
If you disable Series.Visible property it will clear corresponding item checkbox. And if you click the checkbox in Legend, this will modifies Series.Visible property.
I believe this is that you need.

Hope this helps.

ArctionKestutis

Hi, To develop application with LightningChart you need a ' developer license '. That is *.ALF file you got from Arction, which is added in License Manager. The ' developer license ' allows charting developer to use and see LightningChart component without any restriction in Visual Studio environmen...

ArctionKestutis

Hi, There are two conditions when this messages is shown. The first condition for this message to appear is no ‘Developer license’ from the machine and application has valid Deployment Key. If LightningChart detects that it is used in Designer, then it drops chart rendering and shows only message as...

ArctionKestutis

LightningChart has Maps feature, which covered in User’s Manual 5.25 Maps and in several examples of our Demo. The whole idea is to supplement all the functionality of ViewXY chart with geographical map as the background. Our Geographical Maps examples grouped in our Demo App under ViewXY -> Maps. Y...

ArctionKestutis

Hello Mike, You could disable all interaction on the Chart with _Chart.Options.MouseInteraction = false; Most of the objects down in the tree also has MouseInteraction property: Axis, Series, Title etc. Disabling those would prevent highlighting, moving-by-mouse, raising mouse event etc. If you need...

ArctionKestutis

After Chart is rendered (e.g. AfterRendering event is raised) you can use following methods, which help estimating margins: * read Active Axis area (which includes Axis line itself and labels (title is outside of this area)) var area = Axes.GetActiveAxisArea(); * read location of Axis title var rect...

ArctionKestutis

Hello and welcome, It looks like Chart's Title auto alignment with YAxis is not working properly (e.g. as it does with XAxis). This must be an error, which we try to fix as soon as possible. If you need 'LeftCenter' or 'RightCenter' align for Chart Title, then probably you need to use manual margins...

ArctionKestutis

Hello, The Axis Title could be positioned at fixed distance from Axis. For that you should set axisY.Title.DistanceToAxis property and disable _chart.ViewXY.AxisLayout.YAxisTitleAutoPlacement . Only thing that you need is the distance's estimate. Here is my suggestion how you can do it in Axis.Range...

ArctionKestutis

I believe this is already fixed in v8.4.1.4001.

ArctionKestutis

Thank you for all the details. Previously we didn’t use the Console Runner. We ran the test with NUnit directly in Visual Studio as instructed here . We have been able to replicate the exception with NUnit Console Runner 3.8.0. However, it seems that the exception is not related to LightningChart, b...

ArctionKestutis

Hi Yitzchak, I am handling both support and forum :) Of course, the support emails have higher priority as I am more aware about subscription status. We reproduced the issue with NUnit, but not with default Visual Studio's Unit test. Based on provided information about Exception (encountered unloadi...

ArctionKestutis

Thank you for all the details. We believe that you are missing Chart disposal. The 'fix' is to dispose chart before unit test is finished. Thread thread = new Thread(() => { var lcu = new LightningChartUltimate(); lcu.ChartRenderOptions.HeadlessMode = true; // When this line is commented out, the is...

ArctionKestutis

Hello, There are things which could affect line rendering after Zoom-in/out operation. The one you see in our Demo’s “Temperature graph” example is due to optimization to save memory. It is _chart.ViewXY.DropOldSeriesData property. Together with ScrollModePointsKeepLevel property (for PointLineSerie...

ArctionKestutis

Thank you for the report. You did everything correctly, there is some error in LightningChart, which prevent YAxes update together with all Chart rendering. We will fix it as soon as possible. The workaround is to initiate another chart rendering after EndUpdate() call: finally { this.chart.EndUpdat...

ArctionKestutis

Hello,

LightningChart v8.4.1.4001 was just released. It contains a lot of new features, improvements and error fixes.
One of improvements that now Chart renders properly on all 3D camera angles.

Happy charting.

ArctionKestutis

Hello, The first problem is most likely due to HorizontalScrollBar object not being create or not added to Chart.HorizontalScrollBars collection. chart.HorizontalScrollBars[0].Value = _scrollPosition;(System.ArgumentOutOfRangeException) Changing Axis.ValueType should not change any fundamentals of C...

ArctionKestutis

Hello,

You need to create PointLineSeries3D object and add it to collection View3D->PointLineSeries3D, because initially collection is empty.

Hope this helps.

ArctionKestutis

LightningChart could be exported/printed as image (raster or vector format) only. Therefore, part of PDF rendering is not part of LightningChart - it must be some third-party library. Ok, there is option to capture to byte-array or send directly to default printer, but I believe you not using those....

ArctionKestutis

Hi, Yes it is possible to write Unit test for Headless Mode LightningChart. We have written several of those ourselves and usually they function normally. I do noticed some unexpected behavior, which could be due to Message loop functioning differently in UnitTest environment or there is some error ...

ArctionKestutis

Hello, LightningChart does not have method for inserting Row (optimal way) in front of surface data. However, I believe you could mimic backwards scrolling by using View3D.ZAxisSecondary3D . First, you should make Axis visible and Reversed property should be set opposite to primary Axis: _chart.View...

ArctionKestutis

Is it not ?

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Fill.Bitmap.ImageTintColor

ArctionKestutis

Setting Fill.Bitmap.Layout to 'Tile' or 'Stretch' will fill all object's area. Wrong pattern (as you noticed already) or 'Center' option could make fill incomplete.

ArctionKestutis

Hello Celso,

Thank you for the report.
Yes, X-values checking disregard the DataBreaking value. Looks like a bug, which we try to fix as soon as possible.
There is no good workaround, except replacing 'bad' X-values with some sensible and adding 'bad' value to Y-field.

All the best.

ArctionKestutis

Yes, it is possible to use bitmap fill. All the objects with Fill property support Fill.Style=Bitmap. Afterwards just add image, set layout etc. (Fill.Bitmap.Image, Fill.Bitmap.Layout etc.).

Hope this helps.

ArctionKestutis

Please check our Demo App's groups of XY examples "Cursor tracking". Those will provide with ideas how it could be engineered. In general, you can use methods to convert screen coordinates to Axis' values axis.CoordToValue() and some of LineSeries solving method, e.g. series.SolveYValueAtXValue(x) A...

ArctionKestutis

Dear User, Would it be possible to send your application for the testing to Arction's Support email directly? Please include also DxDiag output. Have you tried different engines - Chart.(Chart)RenderOptions.DeviceType ? Is it the only messaged raised by Chart.ChartError event? Which platform you are...

ArctionKestutis

Hello, If you need just text label and those are 4 mutually exclusive options/solutions, then you can use Series.Title property. The usage could be found in our Demo App example "Multi-channel cursor tracking". Open example and clear 'Show value next to cursor' checkbox. Then cursor information is s...

ArctionKestutis

Hi, Thank you for the project. You raised an interesting point. I did quick check of the code and may need to verify preliminary findings latter. But at this points it looks that you will be able to solve your problems, if enable PointCountLimitEnabled from the start . Otherwise, you are initializin...

ArctionKestutis

LegendBox had a lot of modifications not only in version 8, but also in version 7 of LightningChart. I could not definitely say about Null References exception but we are fixing them from time to time. If you know how to reproduce, just replace assemblies and try (or send test project for us to try)...

ArctionKestutis

I believe User's Manual describe this in chapter 6.13.8 'Tracing the model with mouse' MeshModel has triangle-based tracing for mouse position. Use MouseTriangleTraced event. It will indicate the nearest triangle to camera, where the mouse hits. The event arguments have the following info: • Interse...

ArctionKestutis

If you wish to draw 'red line', then you can simply use LineCollections (is a collection of line segments; check corresponding example or Manual for illustration). If you want something more fancy, then you can use Annotation objects - check "Annotations" example (Demo App ->ViewXY -> Others) for va...

ArctionKestutis

Hello, Not sure that I grasped your needs exactly but look at Custom shaping and coloring with CustomLinePointColoringAndShaping event CustomLinePointColoringAndShapingEvent.png However, the speed of rendering will be slow if you have a lot of point or updating frequently. In that case, adding anoth...

ArctionKestutis

Hello, I believe those NOT the bugs but incorrect usage. First, then you create new ValueRangePalette object, the default Steps are created (for Winforms and non-bindable WPF). Those steps are: • Steps[0]: MaxValue:25, Color: Red • Steps[1]: MaxValue:50, Color: Blue • Steps[2]: MaxValue:75, Color: L...

ArctionKestutis

Hello, Not sure how 'axis could take integer values' but I assume it is about label's string format and magnitude of division. Here is brief guide on subject. Disable auto-formatting and use set label's string in any way user likes. User can use normal formatting string here, same as you he/she use ...

ArctionKestutis

Hello, You will loose precision, but you can use converters. That is, in event handler you could use screen coordinates to/from axis values converters (Axis.ValueToCoord and Axis.CoordToValue) to estimate the position of ConstantLine. For example, ConstantLine constantLine = chart.ViewXY.ConstantLin...

ArctionKestutis

Hello,
Please check User's Manual chapter 21. Headless mode and provided demo example. User Manual also cover requirements for Threads.
Hope this helps.

ArctionKestutis

In typical usage, chart should be rendered before using most of it functions. However, LightningChart also has Headless Rendering feature. That is, Headless configuration allows running LightningChart in a headless/server environment. Expected scenarios include background rendering in software appli...

ArctionKestutis

If it is simple text (kind of text label) you can use Chart or Series EventMarkers (field Label). If you need more complex object (with Fill embedded in various shapes) use Annotations. Don't forget to disable ClipInsideGraph property for any of those objects. Hope this helps. P.S. more about text r...

ArctionKestutis

Hi, If you building real-time monitoring example, please check our Demo App. Demo contains the group of examples dedicated to 'real-time monitoring'. Check the source code of example for optimal usage and some tips. I don't know how your acquisition system is build and how points are acquired, but y...

ArctionKestutis

There is Demo App, which contains a lot of examples. Each example has the source code, which you can reuse. Start from there.
If you have valid LightningChart subscription, write your ID to Support email account and we will help you with proof of concept example.

ArctionKestutis

LightningChart has a lot of events, which could be used to change the behavior of the Chart. You may use XAxis.RangeChanged , YAxis.RangeChanged , ViewXY.BeforeZooming , ViewXY.Zoomed , ViewXY.BeforePanning and ViewXY.Panned events. I believe that with one or combination of event handlers you should...

ArctionKestutis

EventMarkers (as any other LightningChart item) have event handlers for mouse actions. Those include mouse hover (MouseOverOn, MouseOverOff), click etc. There is also PositionChange event, which is raised then Marker is moved by mouse or value(s) changed. It should not be difficult to create desired...

ArctionKestutis

see my answer here.

ArctionKestutis

Thank you Curt for the feature request. Unfortunately there is no easy switch to stair-like line rendering. It is not only about line rendering itself but also about all other features and optimizations connected to the line Series: for example, X-Axis scrolling optimization, value tracking with cur...

ArctionKestutis

Hi, For the start, you are using very old version. However, even in old version I don't recall such problem/bug. And definitely it is not the feature. Most likely some properties or event handler are set wrongly. It is difficult to say where you get it wrong without seeing code. Check our tutorials ...

ArctionKestutis

Issues reported here have been fixed in LightningChart v8.3.2.4001.

ArctionKestutis

Hi there! There is very specific reason why this error is thrown. That is, if manual margins are set ( ViewXY.AxisLayout.AutoAdjustMargins = false ) and window size is just too small to have positive GraphArea, XY drawing is cancelled and error is raised. Personally I believe that ' Unspecified ' Er...

ArctionKestutis · Re: ChartManager series drag-drop from chart Error was fixed in v8.3.2.4001.

Error was fixed in v8.3.2.4001.

ArctionKestutis

Hello,
You should disable AutoSize property and modify Height according to your needs. Otherwise LegendBox is always automatically sized.

ArctionKestutis

Intensity series (Grid or Mesh) is array of M x N nodes and you should fill all the nodes. For IntensityMeshSeries X & Y values initialized as 0. Therefore, you are getting broken image as you described, if you are not setting values for remaining nodes. In your case, either yo need to arrange point...

ArctionKestutis

Problem could have been encountered after zooming close enough the surface so that points surface points become too far away.
Yesterday we released v8.3.2.4001, which has Contour Labels rendering fix for low density surfaces.

ArctionKestutis

Hi, If you want place Bars at particular value of XAxis, you should set lightningchart.ViewXY.BarViewOptions.Grouping = BarsGrouping.ByLocation; The default option ‘ ByIndex ’ and another option ‘ ByIndexFitWidth ’ will not rely XAxis. Instead Bars are drawn in the center of the chart without any bi...

ArctionKestutis

Hi,

What are the settings for BarViewOptions (especially Grouping)?
Could you send whole project to Arction's support account for testing?

All the best.

ArctionKestutis

No, it is not normal that mouse movement alone is causing application to lag. I believe you did some modification in example. If yes, we would like to know what kind. If no, then it must be some problem with graphic or mouse drivers. Please send DxDiag output for inspection. Mouse movement on top of...

ArctionKestutis

Hi, Contour label will not on the same location for different zoom/pan. However, it should be still present along the contour line. Our Demo App has example "Intensity mesh, static geometry". With 'Property grid' it is possible to get similar setting as your. However, only very rarely I don't see so...

ArctionKestutis

Hi, I believe that you and many other LightningChart users have misconception about bindable edition of LightningChart. I just want to remind you that binding slowdown chart's rendering considerably (non-bindable WPF edition is fastest). If you need binding only to Chart’s properties ( not , for exa...

ArctionKestutis

Hi, In theory should not be any issues with .NET 4.7.2 from LightningChart perspective. We not aware about any problems, although we did not test very carefully. Only slight concern about per monitors DPI awareness interpretation. Those tend to change with almost each version of .NET and Windows upd...

ArctionKestutis

Hi, 'DataBreaking' property/feature should be very suitable here. Actually our Demo App contains real-time monitoring example dedicated for it, "Data breaking in series": DataBreaking.png The basic idea is that you add new points to Series then they arrive. If you consider points as missing just rep...

ArctionKestutis

If you want to put Mark, it is probably more suitable to use SeriesEventMarkers, ChartEventMarkers or Annotations. The usage is illustrated in our Demo App example "High-speed data, stacked axes" (press/check 'Marker', 'Series marker' buttons from top menu). For LineCollection you should add/modify ...

ArctionKestutis

Hi, Our Demo App contains group of 'Cursor tracking' examples, which illustrate various implementation strategies. Please go through those examples for the ideas. LineSeriesCursor is probably not the one you need, at least not its point tracking feature. Line series cursors allow visual analysis of ...

ArctionKestutis

Hi Daniel,

Most likely it is Series.Title. Please disable title's visibility, i.e. Series.Title.Visible = false.

Hope this helps.

ArctionKestutis

Hi, I suggested to use the LineCollection instead of Chart's Grid and add CustomAxisTick instead normal labels. Here is the image I created: ChartGrid as LineCollection with CustomAxisTick.jpg Here is the code o create chart: using System; using System.Collections.Generic; using System.ComponentMode...

ArctionKestutis

Hi,

If you need empty border around graph area, then probably best approach is to use 'Line collections'. In addition, 'custom ticks' should work here better.
Please check corresponding examples from our Demo App, how to use those objects.

Hope this helps.

ArctionKestutis

Could you try with 8.3.1.4001 assemblies? In addition mention platform (WPF non-bindable, semibindable, fully-bindable)? If you trying to modify Offset while dragging Legendbox, then it is slightly different thing than on MouseUp event. First, you would need to reset location and only then modify of...

ArctionKestutis

It works for me, at least with latest assemblies and non-bindable WPF. That is, if mouse was pressed above the Chart, then Chart continues to receive mouse event, even outside of it. You could subscribe to _chart.MouseUp event and read mouse cursor's coordinates in event handler. Which version of Li...

ArctionKestutis

When LightingChart's objects are not needed anymore it's good practice to Dispose them to prevent memory leaking. As it is described in User’s Manual chapter Dispose pattern : Chart disposing When you have created the chart in code, and don't need that chart anymore, call chart.Dispose(); to free th...

ArctionKestutis

LightningChart is using some rotation order / style. This leads to a problem that for the certain angles there is no solution. Camera especially sensitive (i.e. Euler angles are invalid) then X or Y being equal 90. We are aware about those limitations and planning to modify our internal calculations...

ArctionKestutis

Hi, You could prevent LegendBox movement altogether with _chart.ViewXY.LegendBoxes[0].MoveByMouse = false; If you want to restrict LegendBox's position inside some area, then use Offset property and some of mouse events. For example, following code will return LegendBox back to graph-area of chart o...

ArctionKestutis

Setting Segments.Height = 0 will do the trick.

ArctionKestutis

Sorry for the late reply. It was busy week so forum was neglected. Writing directly to Support account with SubscriptionID usually result in more speedy answer.

Setting Segments.Height = 0 will do the trick.

ArctionKestutis

Sorry for the late reply. It was busy week so forum was neglected. Writing directly to Support account with SubscriptionID usually result in more speedy answer. Sorry, but from image is not clear (at least for me) that you have memory leak and what kind. I would need more description of LightningCha...

ArctionKestutis

Sorry for the late reply. It was busy week so forum was neglected. Writing directly to Support account with SubscriptionID usually result in more speedy answer. LightningChart has many ways to show the text on the chart. Besides Annotation, there are also SeriesEventMarkers, ChartEventMarkers, Serie...

ArctionKestutis

Sorry for the late reply. It was busy week so forum was neglected.

LightningChart has extensive list of properties, which modifies zooming & panning behavior. This and many more setting could be found in User's Manual chapter 'Zooming and panning'

All the best.

ArctionKestutis

Using the properties grid from our Demo App ('Properties' button at the top) should be excellent alternative for the Designer. Just open any example, select property grid and modify almost any property to your liking. The result are seen instantly.

ArctionKestutis

Hello, Yes, it is possible. There several improvement you can do to increase readability of the chart. First, it looks like you have very big gap between segments. It is controlled by property ViewXY.AxisLayout.SegmentsGap Second, each segment has Height property, which set relate space for it. Avai...

ArctionKestutis

LightningChart has 0 as reference point. In many instances, if Axis range is not starting from zero the 1st label will not at minimum. In addition, automated ticks calculator not support unequal interval between ticks. However, there is easy solution - use custom ticks. For example, for XAxis: //Set...

ArctionKestutis

Open Demo App, select example and click one of two buttons/icons at the top. Press Show source code… button to view the source code of selected example. The source code is available as C# and VB.NET (machine-converted). In Visual Studio you can open whole solution of Demo App (with examples as indiv...

ArctionKestutis

Hi, Looks like you are building real-time monitoring application. Have you looked already through our Demo App examples. There is group of examples dedicated to this type of app. Each example has the source code, which you can inspect and modify for your purpose. The short version: initially set XAx...

ArctionKestutis

Hi, At the moment LightningChart's ScrollBar focus could be set only by clicking on it. And there is no easy way mimic mouse click on WPF. I will add as feature request 'manual set of ScrollBar focus'. As workaround, you can set chart focus and subscribe to KeyDown event: private void _chart_Loaded(...

ArctionKestutis

If you have AutoMargins (_chart.ViewXY.AxisLayout.AutoAdjustMargins = true), then it will be all area from Axis till chart edge. Otherwise, you would need to calculate Title's central point and based on angle estimate the extend of the box.

ArctionKestutis

You need to set grouping 'ByLocation' for location field to be taken into account:

Code: Select all

    _chart.ViewXY.BarViewOptions.Grouping = BarsGrouping.ByLocation;

ArctionKestutis

Hello, You can save raster format image to any given size (i.e. there are overloaded functions with additional input arguments). Therefore, set chart to the whole range you want to be saved and specify a large width and height. Relative size of labels will be very small, unless you modify correspond...

ArctionKestutis

Hi Roger, Thank you for all the details. There are few separate issues here. First about DrawRectangle. We did not clarify it before, but it is read only property of intermediate estimate. Note, that it gives accurate results only for Angle=0. Otherwise, reliable only Width, Height and central point...

ArctionKestutis

Hi, Are you talking about Title's DrawRectangle? I don't believe there is any error, but you could try to proof that I am wrong. For better comparison, I would recommend drawing border around title, e.g. Title.Border.Style = Inner. Now you can do angle change - you should notice that box remains in ...

ArctionKestutis

Yes, there is Z-order issue with Rectangle3D. The best workaround is to use SurfaceGridSeries3D instead (create SurfaceGrid with Bitmap fill, and 4 nodes grid is enough).

Hope this helps.

ArctionKestutis

Using the properties grid from our Demo App ('Properties' button at the top) should be excellent alternative for the Designer. Just open any example, select property grid and modify almost any property to your liking. The result are seen instantly.

ArctionKestutis

Hello Roger,

Thank you for detailed report. Yes, indeed 1 and 4 are (de)serialization problems, while 2-3 some error unrelated to serialization.
Starting to search for solution.
Sorry for inconvenience.

ArctionKestutis

Please send your subscription ID and formal request to Arction support email [support at arction dot com].

ArctionKestutis

Hello, For debugging purpose, could you try to connect to this page: http://licensing.arction.com/testconnection/ If you see text ‘Connection OK’, then there are two possibilities. One is antivirus software is blocking license module running (check corresponding event log). Another possibility is co...

ArctionKestutis

Hello Roger,

Thank you for the detailed report. Probably it is deserialization problem.

We will try to verify and fix issues as soon as possible.
The workaround is to create chart in the code (as all our Demo examples are done; check their code for guidance).

All the best.

ArctionKestutis

Hello, Yes, this is exactly that you should do, if you have developer license. That is, remove license from Arction's License Manager before making complex modification on the machine. And yes, you will required to 'install from file' the license after modifications are done. If online (de)activatio...

ArctionKestutis

Hello, When having any mystic problem with the chart, ensure you have a working error/exception handler (subscribe to _chart.ChartError event) in your application which brings those errors visible for the user and tells the reason. In this case most likely you will get warning about DPI awareness (a...

ArctionKestutis

Dear Ramon, This seems to me like error of parent sharing. LightningChart object model is tree-based. Every class has its parent object, and list of child objects. With aid of this tree, child object notifies parent of its changes, so that parent can respond to it respectively, and parent notifies i...

ArctionKestutis

Hi, This is not something for me or you to decide. The thread-pool is controlled by Framework and Windows environment. And there are smart algorithms to decide on number threads to perform certain task. On paper there is no benefit to run small task on individual thread: at some point time for creat...

ArctionKestutis

Hi Frederick,

Issue has been fixed in version 8.3.1.1. Could you confirm the fix?

All the best.

ArctionKestutis

Hi Frederick,

Issue has been fixed in version 8.2.1.4. Could you confirm the fix?

All the best.

ArctionKestutis

Hello Martin,

Issue has been fixed in version 8.2.1.4. Could you confirm the fix?

All the best.

ArctionKestutis

Hi, It is not obligatory to have valid LightningChart SubscriptionID to ask question in the forum, but I need to prioritize customers valid subscription. If you would like fast and definite answer it is better to right directly to Arction's support email account (with SubscriptionID mentioned). As t...

ArctionKestutis

Hello, If arrows are not mandatory, you can use Bands object/series (at least for Xaxis). Please see corresponding examples in our Demo App. However, Annotation has Caliper style, which perfectly suitable here. AnnotationCaliper.jpg Here is the code from our "Annotations" example, which creates it: ...

ArctionKestutis

Hello, When setting LabelsTimeFormat property, the DateTime.ToString() method's parameters string applies. You can find more about available options here . If you could not find suitable option, you can use Axis.FormatValueLabel event. For example, _chart.ViewXY.YAxes[0].FormatValueLabel += YAxis_Fo...

ArctionKestutis

Hi Chan,
As I wrote, I don't see the image. Therefore, this make interpretation of your question very difficult. Could you try to upload the file again, or send to Arction's support email account.
All the best.

ArctionKestutis

Hello, I don't see your image and description was not enough to understand your wish. Could you try again to add image and add more description. Perhaps you interested in CustomTicks , check those key words in User's Manual and Demo App. P.S. You can send your question directly to Support email acco...

ArctionKestutis

Hi, You could place Y Axis as percents of the graph width. For that you need to disable YAxisAutoPlacement and set Position. That is, 0 sets the axis in left edge, 50 in the middle and 100 in right edge. ViewXY.AxisLayout.YAxisAutoPlacement = YAxisAutoPlacement.Off; axisY.Position = 50; Hope this he...

ArctionKestutis

Enabled InvokeRenderingInUIThread property is not making Thread usage optimal, it just makes App thread-safe. As I wrote before, the usage of Invoke() method in correct places is the optimal solution.

ArctionKestutis

Thank you for interested in LightningChart. The project you created is not exactly clones of the original one. You actually added Thread but using it incorrectly. LightningChart updates must be done in UI thread. We don't guarantee operation otherwise. That is the way in WinForms and WPF, practicall...

ArctionKestutis

Hello Martin, The LegendBox 'sorting' comes from the reading/rendering order. Original list is created by adding all FreeformPointLineSeries, then PointLineSeries, SampleDataSeries, LineCollections etc. Besides that each series list (e.g. PointLineSeries) is taken in the same order they have been ad...

ArctionKestutis

Hello, Have you checked latest LightningChart version, 8.3.1.4001? We released the improvement for CustomLinePointColoringAndShaping event. I believe that now the coloring of FreeformPointLineSeries is very similar to MultiColorLine feature in 3D. CustomLinePointColoringAndShaping.png Please check D...

ArctionKestutis

From the project send to Support, it seems like LightningChart updates must was not done in (main) UI thread. All UI stuff must be updated in UI thread, otherwise the application is prone to crashing or doing all kind funny stuff.

ArctionKestutis

Hi, You can check the overview of all features in Action's YouTube channel: https://www.youtube.com/channel/UCQA9NVRmqAspjJj2OKzrkmw However, the easiest way to learn is to open our Demo App and check the examples. There is group of examples "Real-time monitoring", which cover the topic of your inte...

ArctionKestutis

Hi, LightningChart has three types of point-line series: SampleDataSeries, PointLineSeries and FreeformPointLineSeries (see User’s Manual chapter 5.5-7). They are different in a way x-value progressing. SampleDataSeries has strict interval, therefore, storing value is more compact and rendering time...

ArctionKestutis

Hi, The multiple threads in general is not bad thing. It allows code to distribute work across multiple processors and the .NET Framework 4 supports parallel programming. However, LightningChart does not control number of threads. The task is given for thread-pool and it is Framework keeps control o...

ArctionKestutis

Hello, For normal deployment process: * First, then you deploy your application, you should extract and apply ‘Deployment Key’ as instructed in User’s Manual chapters 3.3-3.4 . * Second, you should deliver Arction DLLs with your executable (see User’s Manual chapter 26.1 Referenced assemblies ): Ple...

ArctionKestutis

Hi, It is quite close. Your deduction is correct: whenever new points arrived the code updates HorizontalScrollBar.Maximum . If you want to keep scroll-tumb at the end, the Value field ( HorizontalScrollBar.Value ) is updated relatively to Maximum: sb.Value = sb.Maximum - sb.LargeChange +1; Therefor...

ArctionKestutis

Hi, Sorry for the delayed response. LightningChart's labels auto formatting logic tries to do close to that you asked. That is, if XAxis.AutoFormatLables is enables and XAxis.ValueType==DateTime , when for step (between ticks) <1 sec format "mm:ss.(f)" is used; >1 & <300 sec format "HH:mm:ss" is use...

ArctionKestutis

Hi Igor,
I believe you pointing to Markers' overlap problem. We discussed way to reduce number of markers dynamically 2 month ago in emails.
All the best.

ArctionKestutis

Hello, What would be "essentially replicated the example code"? If you dropping LightningChart component from Visual Studio Toolbox it maybe significant difference. We recommend using complete Chart creation in the code, due to occasional (de)serialization problem :oops: If this is not the reason, w...

ArctionKestutis

Hi,

I believe that you need to set series.BaseValue
However, fill not will be in the middle section as your arrow points. Check HighLowSeries, as it may be more suitable for your purpose.

All the best.

ArctionKestutis

Hi,

There are various cursor tracking strategies illustrated in group of examples from our DemoApp -> XY -> 'CursorTracking'.

I believe that most suitable for you is

Code: Select all

Series.SolveNearestDataPointByCoord()

Please not that input argument is screen coordinates (not DIP units).

All the best.

ArctionKestutis

Hi, I could only think about disabled Series.ShowInLegendBox, but then you would not see series' title as well. Subscribe to _chart.ChartError event to check that there is no warning or errors reported in event handler. Subscribe to _Chart.AfterRendering event and check those mentioned properties - ...

ArctionKestutis

Hi, PrintPreview is per chart. There is no easy way to do otherwise. I believe that best workaround is to save chart as image and combine those images into single printable page. You can create bitmap or vector image with SaveToFile(), SaveToStream(), CopyToClipboard(…), CopyToClipboardAsEmf() calls...

ArctionKestutis

You just put two fingers at opposite of 3D chart (left-right, top-bottom) and move fingers simultaneously toward each other (or away from each other). That should give you zooming, or distance change in View3D. It works on my touch screen monitor just fine.

All the best.

ArctionKestutis

Hi, Sorry for the delayed response. Sometimes question in the forum get lost. You should be able to get faster reply, if you will write directly to Arction's support address ;) :oops: Thank for the reading User's Manual and reporting error. Indeed this part of manual and relevant example have not be...

ArctionKestutis

Hello, It would be overstretch of scenario PersistentSeriesRenderLayer was design for. PersistentSeriesRenderLayer is kind of a bitmap, that allows adding rendering data incrementally in it. CPU load or memory footprint doesn’t rise, but you could not have zoom/pan interactivity as with normal Serie...

ArctionKestutis

Hello, As far as I see you don't have Subscription for LightningChart. You probably aware that "subscription expiration ends technical support, updates and warranty". If you do have subscription, please contact Arction Support. The short answer to your question - final color of 3D object is result o...

ArctionKestutis

Hello,

LightningChart has to be classified as EAR99 (ECCN classification).

P.S. I see that your license subscription ended many years ago - you are missing a lot of new great features in LightningChart

Please consider renewing subscription or at least checking trial version.

All the best.

ArctionKestutis

Hello, Could you provide more information? It will be more helpful if you will describe all the settings you used to reproduce Bar Chart. In addition, tell us what you want to see: fixed width of the bar, fixed location etc. Test project to reproduce the issue would be nice to have. If someone start...

ArctionKestutis

Hello, It is just much more easy to debug problems with latest LightningChart versions: it have multiple fallback systems, extensive list of error reporting and additional events to follow rendering process. Don't remember that was already available in version 6.5 (as we stop supporting that version...

ArctionKestutis

Hi, We at least need to know the LightningChart version and platform (WinFroms, WPF, bindable etc.) you currently are using. Try to use latest one, as it has not only new features but improved reporting on errors. Which engine (_chart.(Chart)RenderOptions.DeviceType) you try to initialize, is it ‘Au...

ArctionKestutis

Hi,

No, there is no way to avoid intermediate conversion to type supported by corresponding Series field (Points or Data).
Probably you could acquire 'source' license of LightningChart and do such project specific optimization.

All the best.

ArctionKestutis

Hello, I send more extended reply from support email. Here is just short version of answer. Are you interested in coloring line or area under the curve? If you want to color line as shown in Demo App example “Line, palette coloring” , when you could have one palette (for Y value range) per Series. Y...

ArctionKestutis

SegmentHeightProperty = AxisLayout.Segments.Height

Code: Select all

            for (int i = 0; i <= iLastSegmentIndex; i++)
            {
               SumOfHeightProperties += Segments[i].Height;
             }

The 'last' means the last Segment in the list (AxisLayout.Segments).

All the best.

ArctionKestutis

Hi Fred, I believe that is wrong approach. If you remove segment or resize app's window the information about segment need to be updated. The ViewXY.GetGraphSegmentInfo() will return wrong/old info until is repainted. Therefore, I suggested to use _chart.AfterRendering event, after which all Chart's...

ArctionKestutis

Hi, No, it is not possible to have fast rendering and on-fly update of all drawing data. That is trade of. Most of LightningChart properties are interconnected: very often you need partial or full refresh for changes propagate through all chart. Typical recommendation in this situation - use Chart.A...

ArctionKestutis

Thanks for the report.
Indeed looks like one pixel is lost at the bottom of HeatMap. We will investigate this issue as soon as possible.
If you need/want to cover this pixel, you can set Xaxis.VerticalAlign = Top with AxisThickness >1.

All the best.

ArctionKestutis

Hi,

I see no problem with latest version (v8.2.3.1) in WinForms.
With default settings, the slight modified 'ExampleSegmentedLineXY' gave me both down event for all three mouse buttons.

Please provide more specific details of your app, if it is still the problem.

All the best.

ArctionKestutis

Sorry for the delayed answer. Actually ZoomToFit() method modifies Axis ranges saliently (checks chart size, estimates range based on AspectRatio and changes range for X/Y axis if found it necessary). Probably the only way is to set RightToLeftZoomAction = OFF and build your own custom MouseEvent ha...

ArctionKestutis

Hi, It should be enough to include pair of BeginUpdate() and EndUpdate() method call. Chart’s EndUpdate() methods just informs chart that new frame should be rendered. I don't see any problems, at least in semi-bindable LightningChart v8.2.2.1: with each Value increase, labels and Title increased, a...

ArctionKestutis

On my 'AMD Radeon HD 6450' card, still no problem even with your project.

ArctionKestutis

Hi,
Yes, please set

Code: Select all

_chart.ViewXY.Maps.LandOptions.LineStyle.Color

The Color structure is formed from the four ARGB components (alpha, red, green, and blue) values. To get transparency effect reduce Alpha value (max=255, min=0).

All the best.

ArctionKestutis

Actual problem that DrawData is not update if marker is not visible. Therefore the work flow need to be modified. First, I would suggest subscribing to Axis’ RangeChanged and Chart’s SizeChanged events. Second, in those event handlers you want to make all Markers visible, force rendering frame (Begi...

ArctionKestutis

Hi, Several customers reported AccessViolationException under certain circumstances, but have been not able to reproduce them. This exception is very broad class and not point to any specific direction. However, we fixed that we found may be the issue. Those few customers tested alpha release and co...

ArctionKestutis

Hi Igor, We got you email with project attached. Please remember that each property change (including EventMarker visibility) will trigger new frame rendering. As you have multiple markers, rendering will triggered for each of them, unless you batch all update between _chart.BeginUpdate() and _chart...

ArctionKestutis

Yes, as it is shown in above example. Please set OFF corresponding chart.ViewXY.AxisLayout.?AxisAutoPlacement and set Position (Axes.Position as percents of chart width or height).

ArctionKestutis

I believe that your instructions have been clear. However, if you would share your project, when we will be absolutely certain that we are testing the same thing. You can leave project in the forum or send to Arction's support account.

Have a good weekend.

ArctionKestutis

Not able to reproduce with 'AMD Radeon HD 6450'.
Keep looking for other AMD card.

ArctionKestutis

Hello, Sorry for the delayed response - have been busy answering direct emails. The problem you described is peculiar, we have not seen it before. From your video, it looks like LCU is resized properly. The problem what clipping area (drawing stencil) remains previous size. Somehow LCU get correct s...

ArctionKestutis

Hi,
You probably disable Axis.AutoFormatLabels and using Axis.LabelsNumberFormat="0.0". Please modify formatting accordingly.

All the best.

ArctionKestutis

Hello, I guess you want YAxis labels and Title to be on the right. For that you need to set corresponding properties <lcusb:AxisY.Title> <lcusb:AxisYTitle HorizontalAlign="Right"/> </lcusb:AxisY.Title> <lcusb:AxisY.MajorDivTickStyle> <lcusb:AxisTickStyle Alignment="Far"/> </lcusb:AxisY.MajorDivTickS...

ArctionKestutis

To be visible in the LegendBox, create dummy series: no points just line/point style same as marker. In addition, disable visibility for the first series in legendbox (Series.ShowInLegendBox=false).

ArctionKestutis

Hi, There are several solutions for your question. With limited information is difficult to say, which solution would the optimal. For example, you could just disable Series.PointsVisible and use SeriesEventMarkers instead. The benefit of SeriesEventMarker is possibility to manipulate its style indi...

ArctionKestutis

Hi, LineCollection has properties tree 'LineStyle', where you can set color, width and pattern of line. Those setting will be applied for all SegmentLine included in that collection. Even if you have one segment per LineCollection, it is still more efficient to use LineCollection than FreeformPointL...

ArctionKestutis

Hi Igor, You could use either Scalebreaks or DataBreaking feature. Starting from version 8, X axes support Scale breaks. Scale breaks allow excluding specific X ranges, e.g. inactive trading hours/dates or machinery off-production hours. All the series that have been assigned to the specified X axis...

ArctionKestutis

You are welcome!

ArctionKestutis

Hello, If you using multiple thread, please note that LightningChart updates must be done in UI thread. We don't guarantee operation otherwise. That is the way in WinForms and WPF, practically for all UI controls. All UI stuff must be updated in UI thread, otherwise the application is prone to crash...

ArctionKestutis

I believe that Polar-Sector is good starting points. You could build a lot of great things on that.
What is missing in your opinion?
Please check other Polar example for new ideas!

All the best.

ArctionKestutis

Hello,

The Sunburst could be built from Polar Chart by adding multiple Sectors. See our DemoApp example “Line series, sector” (PolarChart).

All the best.

ArctionKestutis

Hi Igor, There are several ways to track mouse on LightningChart. It depends on type of series used and visual considerations. There is group of examples in our Demo App, under XY -> CursorTracking. The basic idea is to combine Mouse-move, Mouse-over event and Annotation or similar object. However, ...

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