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Questions tagged [lightningchart]

Use this tag for questions regarding LightningChart JS or LightningChart .NET. Also add either javascript or c# tag to differentiate which library the question is related to.

LightningChart JS

LightningChart JS is a WebGL based, cross-platform charting library that has been developed for delivering an outstanding performance of your charts which ensures high refresh rates and smooth animations of your application. It features accessible API documentation, extensive functionality and an innovative dashboard control. Optimal for engineering, medicine, industrial process control and trading.

Example:

import { lightningChart } from '@arction/lcjs'
const chart = lightningChart().ChartXY()

Resources:

LightingChart .NET

LightningChart .NET is the fastest 2D & 3D data visualization SDK for WPF and Windows Forms. It has been actively developed since 2009. The charting library contains over 100 interactive charts with rich functionality that is suitable for creation of applications within the most demanding industries: science and research, engineering, economics and finance, trading, medicine, energy, space and defense

Resources

272 questions
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LightningChart JS - Corruption of LineSeries / Progressive X

I'm running into an interesting problem with LightningChart where it seems to be corrupting or otherwise decimating my data depending on how far it is from the DateOrigin of the chart. My data is 1000 samples per second and I am trying to display…
Kenneth Miller
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4
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1 answer

Changing stroke color of LineSeries and/or AreaSeries in LightningChart

Is it possible to change the stroke color of LineSeries and/or AreaSeries in LightningChart JS based on point values? Example 1: Display the line as red when the y-value is above 10.0, but use blue color otherwise. Example 2: Display the line as…
Torstein Bjørgan
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4
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1 answer

Change Scatter Chart Size and shape dynamically - LightningChart JS

How do we change scatter chart size and shape dynamically while adding data to series const pointz = chart.addPointSeries({ pointShape: PointShape.Circle }) .setName('Kuopio') .setPointFillStyle(fillStyles[0]) .setPointSize(pointSize) …
Gracie williams
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3
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1 answer

How to customize the text of an auto cursor axis tick?

I would like to customize the format of the numeric values shown on the auto cursor's x-axis tick marker. I can customize my x-axis by setting the tick strategy(Numeric) and defining a formatting function, but the auto cursor x-axis tick marker text…
hardestee
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3
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1 answer

ChartXY and Axis styling methods in LightningChart-JS

Hi, I need help in changing a bunch of styling properties for the ChartXY and Axis. I tried the methods from the documentation but its either the function is not found or it is not clear which method in the API doc. changing the default x and y…
Patrick John Pacana
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3
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2 answers

Get visible points for a series in LightningChartJs

Exists a function in LightningChartJs to get all visible points from a line or point series in a chart? If I zoom the chart I want to show something if no visible points available. In some cases I have breaks in my data. For now I have to check the…
monkey-0001
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3
votes
1 answer

Line series solve nearest from screen does not return appropriate values

I am using LightningChart JS with a line series and I am subscribing to the mousedrag event on the series, this in turn returns the coordinates of the starting point. When I run the solveNearestFromScreen on the point it returns point with the…
Yash.S.Narang
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3
votes
1 answer

How can we change spider chart background color?

Refer this image to see what i am looking at: With this code : const colors = [ColorRGBA(0, 255, 125, 0), ColorRGBA(255, 125, 0, 0)] const fillStyles = colors.map((color) => new SolidFill({ color: color.setA(150) })) const chart =…
Taylor
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3
votes
1 answer

Way to show full date instead of just hh:ss in LightningChart JS?

The above screenshot shows the zoomed out version where date is shownig full format but on zooming in it just shows time in hh:ss. The second screenshot shows the zoomed in version Is there any way to show full date on legend in Zoomed In version…
Learner
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3
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1 answer

How to add defaultAxisXTickStrategy in LightningChart JS after initialising the chart?

I am initializing the chart like this this.chart = lightningChart() .ChartXY({ containerId: 'chartSection', theme: Themes.light }) .setTitle('') and binding the data later and would like to add defaultAxisXTickStrategy later…
Learner
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3
votes
1 answer

Is it possible to disable zoom in lightningChartJS chart?

In a chart created using LightningChartJS one can zoom in or zoom out of a particular section by dragging the mouse.Is it possible to disable the zoom functionality?
Suyash
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3
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1 answer

Changing axis label color in LightningChart JS

The chart appears with dark background, axis numeric labels in grid positions are yellow. How do I change axis label colors to white? E.g. in this example…
Keira
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2
votes
1 answer

Lightning Chart JS Blurry on Mac?

I am working on getting a basic LightningChart example up and running in electron, looking to write a cross-platform charting app for my industry. I grabbed the demo HTML code from the website and plopped it into my app, here's how it looks. As you…
Kenneth Miller
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2
votes
1 answer

Graph mouse events are not getting treggered

I am working on an electron-angular project, In which I have to render four graphs one by one on the same screen. when the component loads you can see two of them on the screen and to see other graphs you have to scroll down the window. I've…
Riddhi Balar
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2
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2 answers

When I use the JavaScript On Screen Menu example, the button of OnScreenMenuButtonType doesn't show the icon

I don't know why, the example in the document can display the icon, but the one I wrote does not display enter image description here this.SpecChart.addOnScreenMenu( [ [ // Default buttons …
ChenWeibin
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