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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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LCJS AreaSeries FillStyle misbehaves on chart containing 2 series

Requirement Want to setup a chart which updates progressively. When user gives a trigger, series should change the color of currently updating part for a short time (Color of the whole chart should not change). Approach To achieve this, I'm using…
Akshay C P
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How do I limit the range of the X-axis to existing data on LightningChart version 4.x

In version 3.x I can do this with onScaleChange onScaleChange(listener: (start: number, end: number) => void): Token; The following code works fine on 3.x and prevents the user from zooming out in oblivion with the mouse…
SungamR
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Getting violations on lightningChart

Please find attached screenshot showing violations that I am getting on using lightning chart line chart. I am not sure what is causing those violations. Is there a way to find what might be causing those violations. Thanks
Learner
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How do I have differently styled labels on the same chart in LightningChart JS

I have a pie chart and want to have differently colored labels on each slice so that the text is more readable. Here is a slightly modified code, which creates a simple pie chart with labels inside, taken from interactive demos here: const lcjs =…
Karolis
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Couldn't create vertex buffer

I use the lighningchart library and have a problem 'Couldn't create vertex buffer', if the chart is working during 10-20 minutes with realtime updates by websocket, I attached the image with details of the error in console. I can't really understand…
beoleg
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Lightning Chart sample failed with error:0308010C:digital envelope routines::unsupported

Any idea how to fix the attached errors after npm install and npm start lightning chart typescript example from github, running on Windows 11, the Manu Help shows Node.js: 16.14.2, but the vsc terminal node --version shows 18.12.0 Visual Studio Code…
Fred J.
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Electron - LightningChart - Drag and Drop Chart - Unsafe Inline Issues?

I am new to JS/Electron. I'm trying to create an Electron App, my Electron App has several charts, I am using LightningChart JS for my charting. The LightningChart API asks my to target a div, then it apparently inserts a canvas into the div upon…
Kenneth Miller
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Is it possible to use a dataPattern in zoomBandChart?

I'm trying currently to add a zoomBandChart to my dashBoard. The chart that the zoomBandChart will be displaying, has the following dataPattern enabled: dataPattern: { pattern: 'ProgressiveX', regularProgressiveStep: false, …
Hoodrobinrs
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Override Date formatting tick hierarchy in lightningchart.js

I'm trying to build a heatmap in LightningChart that covers a fixed 24 hours time span in 15 minutes intervals. For the sake of conveinience, that interval is inclusive, so if I'm reading a midnight-to-midnight interval, I expect to have the data…
VLRoyrenn
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How can I add a scroll bar on a chart from LighteningChart Library?m

I'm currently trying to add a horizontal scroll bar below x-axis to control data displayed along x-axis. The chart that I'm using is the following…
Taki
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individual size and color in 3d scatter lighningchart

Good morning, I am creating a 3dscatter lighningchart graph and I want to have individual colors in a 3d scatter Lightningchart series/ #lightningchart. I have individualPointSizeEnabled set to true as wel: my series: const pointSeries3D_yclass =…
Tjalling Kikkert
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How to get xyz values at mouse position without showing the ResultTable popup in lightning chart js

When moving the mouse over a heatmap in a ChartXY, you can get the xyz values of the mouse position by setting up the AutoCursor and displaying the ResultTable. But how can you get those values as an event for instance or at least by calling a…
MikeT
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Adding Text in Lightning chart with scale

I want to add text to chart at particular X and Y axis.Right now I use below code , if too many texts its clustered and not positioned correctly. function addText(name, id) { name = ""+name+""; chart[id] …
Gracie williams
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Scroll behvior is not wroking properly in multiple charts in same screen

I've multiple charts on the same screen, but the issue is when I'm scrolling down the page. and then If I will take the mouse into the graph area, the graph will stick, and on scroll, event zoom in and zoom out event will not work.
Harsh Makwana
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How can I display rich/formatted text in lightningchart js?

I would like to display formatted text (using symbols, subscript, superscript etc) in the axis titles, legend entries etc of the lightningchart component. How can I accomplish this?
wiesener
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