beto-rodriguez/Live-Charts

Good looking, animated, easy to customize, MVVM charts for WPF, WinForms under MIT Licence

bebenins

@bebenins

This is the most abandoned project I've ever seen.

Dani Neuss

@danineuss

Hi Beto (and anyone reading this)

In our little company we are really loving your tool and are proud and happy owners of a Geared License. Now we experience an issue with one of our customers where the Cartesian Chart does not render at all (it is really simply blank) - did anyone experience a similar issue

Our best guess so far is that they are running an LTSC version of Windows 10 on their machine (Version 1809) but we couldn't yet confirm this hunch.

Any help would of course be appreciated, thanks,
Dani

paolopiccioli

@paolopiccioli

Hi, I bought LiveCharts Geared version but seems also it's not so fast. To show/update a diagram with 15/30 series with 3600 points each need 3/4 seconds (to zoom also). Performances are better if the diagram become smaller when zoom increase the Y axes. Which is the problem? I already disabled all animation, legend etc... as explained in performance tips.

P.S. email Support@lvcharts.net doesn't work

recounter7

@recounter7

Hello, has anyone found a way to export heatmap representations as vector-based graphics (e.g. .svg, .emf, etc.)?

Tyler Hartwig

@tylerhartwig

Has anyone had trouble debugging with Xamarin.Forms on Live Charts 2? With debugger connected no chart renders, without, it does render

Mohammad Neshasteh

@MohammadNeshasteh

hi , i need sample code for vb.net live chart bar ,pls help me

cmello74

@cmello74

Can you change the max values for each bar in a gauge on livecharts? Say I want to have three values represented, but each one has a different range.

RogBear

@RogBear

Any way to change column chart colors for each data point? I can enter the value with ChartValues1.Add(5000.85); - but I don't see how to set the color of that column. Is there an example somewhere? Thanks.

aimar022

@aimar022

when i set the background color to any color on geoMap in a winform the color doesn't change to the correct color ( example excepected color :black(#000000),--> Result color (#FF0000)

Chipsian

@Chipsian

I have som issues with my Cartesian chart. I want to add calculated values. 2 linecharts one with voltages and one with a dutyclyle and there are more than 6000 values to show. How can I make this calculation faster? Is it possible to only every tenth value? And resizing takes almost 100 years loading time. Is it possible to calculate the resizing with threads or tasks in C# .Net

joshuachan1197

@joshuachan1197

Hi, Im new to wpf livechart. I know that currently the livechart is moving to v2.0. But as I know it is still in the beta version. For my application I prefer to use a stable version library, however I saw that LiveChart v1 stop at v0.9.7, follow by Sementic versioning it is also in the beta version (not fully release). Can I know is there any major bugs or is it stable to use?

forrma

@forrma

With LiveCharts I create an X/Y graph:

X-axis: Time
Y-axis: symmetrical values output from the zero axis to MinValue and MaxValue.
The min/max values are set as follows:

if (Math.Abs(newValueY) > maxValueY)
{
maxValueY = Math.Abs(newValueY);
MaxValue = maxValueY;
MinValue = -maxValueY;
}
My problem is that the grid is not displayed symmetrically. The zero axis is not displayed. Is there any way to configure LiveCharts to draw the grid up and down from zero axis instead of starting at MinValue?

Thanks for any hints! Markus

carylynechan

@carylynechan:matrix.org

[m]

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Junichi Sugiyama

@junsugi-cac

i cannot transfer my LiveCharts.Geared license purchased in Dec. 2019 from my team member. could you help and support me?
and now i cannot login https://lvcharts.net/ with my microsoft account. is it a problem of my microsoft account ?

Junichi Sugiyama

@junsugi-cac

P.S. email Support@lvcharts.net doesn't work

NiharikaDhanalakoti

@NiharikaDhanalakoti

can we fill dashed lines in inverted series of LiveCharts?

NiharikaDhanalakoti

@NiharikaDhanalakoti

![alt](https://bookdown.org/content/6371/R-Gallery_files/figure-html/horizontal-barplot-density-angle-texture-1.png)

Something like the one in my previous message

Stephane Castelle

@Stp33ph_gitlab

Hello, can someone tell me how I can remove the horizontal lines from the graph?

It is a cartesian Chart

Cat2Fight

@Cat2Fight

Hello. I would like to purchase a license so that I can use Geared. Any time I try to log in after I click buy. I get this ASP.NET message "The anti-forgery cookie token and form field token do not match." Is this a known problem? Thank you

Ippocampo

@Ippocampo

Hello , i bought the license , but now i get error when opening the xaml wpf that says i need to activate it , even if i've already done in the past. And if i login with the account the activator downloader doesnt work . Who can help me ? I paid for something that doesnt work...

1 reply

Alberto Rodríguez

@beto-rodriguez

Hello, purchases have been disabled for a while now, v0 is not on sale any more long time ago. If you are facing any issue to activate your old license, please let me know by mail or here and I will help.

krrrambambuli

@krrrambambuli

@beto-rodriguez Thank's for your fast answer. I am using the "LiveCharts.Geared.Wpf version 1, single" since 02/2022. Could you please contact me how I can acitvate the licence? Also, I wrote you an email

Ippocampo

@Ippocampo

@beto-rodriguez Hello , the license was bought on 17 March 22 , if i try to download the activator or the offline activator, i get an error "Could not find file 'E:\kunden\homepages\29\d756551180\www\lvchartsv0\Content\LiveCharts Activator.exe'" so right now i'm unable to activate the product. I've already sent you an email on 29 nov 2022, 10:09 without any answer till now, if you want i can send you another one with the receipt of the order and some screenshot of the errors.Any help would be appreciated, thanks in advance

Alberto Rodríguez

@beto-rodriguez

@Ippocampo is your mail coming from Andrea Spadavecchia? I found and replied that mail, sorry about the delay.

Owz .

@Dr.owz_gitlab

is there any code with VB.NET or all the codes with C# only?

d.weaver

@d.weaver:matrix.org

[m]

@beto-rodriguez: Hello! I purchased a team license back on 09/09/2021 and I am trying to access my account to manage it however I cannot find my credentials and the forgot my password function isn't sending me anything. I have the receipt and transaction Id. Could you please assist me in regaining access to my account?

Alberto Rodríguez

@beto-rodriguez

@d.weaver:matrix.org Please mail me at rodriguezo.alberto@gmail.com, the login is down due external issues.

@Dr.owz_gitlab only C#

ahmadnadeemssi

@ahmadnadeemssi

Hi @beto-rodriguez

I am facing the below null exception whenever the ViewModel is initialized.
System.NullReferenceException
HResult=0x80004003
Message=Object reference not set to an instance of an object.
Source=LiveCharts.Wpf
StackTrace:
at LiveCharts.Wpf.Axis.UpdateTitle(ChartCore chart, Double rotationAngle)
at LiveCharts.Charts.ChartCore.CalculateComponentsAndMargin()
at LiveCharts.Charts.CartesianChartCore.PrepareAxes()
at LiveCharts.ChartUpdater.Update(Boolean restartsAnimations, Boolean force)
at LiveCharts.Wpf.Components.ChartUpdater.UpdaterTick(Boolean restartView, Boolean force)
at System.Windows.Threading.DispatcherTimer.FireTick()
at System.Windows.Threading.DispatcherTimer.<>c.<Restart>b__21_0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run()
at PrismSampleApp.App.Main()

Help is required.!!

Ippocampo

@Ippocampo

@beto-rodriguez Yes its me , i answerd back to you , thank you for your reply btw :)

AriharasudhanManigandan

@AriharasudhanManigandan

Hi, I'm fairly new to open source. I run a small company. I would like to use this library for commercial purposes. Is it free to use or should I buy the license to do so?

ChrMa71

@ChrMa71

Hi everybody. I have a question regarding GeoMap. I use the GeoMap in my app which is working fine as long as I run the app in Visual Studio. When I deploy the app to run from the installation folder the app still runs fine but when trying to open the GeoMap the app crashes without any error message. I wrapped the code in a try and catch clause but even though no error message is prompted. My first thought was that the World.xml cannot be found but it was properly deployed. I even copied the file to different locations to see if this would help. Can anybody please help me to figure out what to do? Thanks a lot!

krrrambambuli

@krrrambambuli

@beto-rodriguez Could you please help me to activate my licence? I wrote you an email :)

Alberto Rodríguez

@beto-rodriguez

sure, can you please mail me again?

1 reply

solidLogic

@pimp22

Hi, I'm fairly new to open source. I run a small company. I would like to use this library for commercial purposes. Is it free to use or should I buy the license to do so?

@beto-rodriguez could you answer his question? Also, I used this for an internal application in a company, not aimed for customer exposure. is that a problem to use freely?

AriharasudhanManigandan

@AriharasudhanManigandan

Hi @pimp22 , I got the answer from @beto-rodriguez . There's no problem with using the library for commercial purposes. To answer your question, You can defly use it in your application and deploy it anywhere.

solidLogic

@pimp22

ColorMapper = Mappers.Xy<double>()
.X((value, index) => index)
.Y(value => value)
.Fill((value, index) => index == 2 ? Brushes.Red : Brushes.Brown)
.Stroke((value, index) => index == 2 ? Brushes.Red : Brushes.Brown);

        SeriesCollectionBars.Clear();
        SeriesCollectionBars.Add(
            new ColumnSeries
            {
                Values = values,
                Title = "Case count",
                Configuration = ColorMapper,
                DataLabels = true,
                LabelPoint = chartPoint =>
                    string.Format("{0}", chartPoint.Y),
            }
        );

Can anybody tell me why this doesn't change color of colums? they are all blue

pdsn-parkcy

@pdsn-parkcy

I want to pay because I want to use Geared.
However, it does not proceed after Billing Information.
Help!!

Rida Ouassen

@danger1:matrix.org

[m]

how I can add data from Mysql to CartesianChart1 in c# ?

solidLogic

@pimp22

Load the data and fill it like usually?

hdahmani1

@hdahmani1

Hi there, is it possible to hide lines (in order to look like scatter points) in line series ? thank you

slacy-sciex

@slacy-sciex

Beto - I got a live charts geared license back in 2018/2019 time frame and my company got bought and the email no longer works to login to my live charts account. Who can I talk to about re-gaining access?

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