JavaScript Line Chart

Line Chart - JavaScript

Overview

This example demonstrates various permutations of a SciChart.js line chart implemented in JavaScript. It showcases multiple variations such as simple line charts, digital (step) line charts, charts with tooltips, dashed lines, gradient and paletted line charts, hover/select enabled charts, vertical charts, charts with data gaps, and thresholded line charts. The example emphasizes high performance and advanced customization using asynchronous chart initialization.

Technical Implementation

The charts are created by asynchronously initializing a SciChartSurface with an API call that returns both the surface and the underlying WebAssembly context. This method, which you can explore further in the Tutorial 01 - Including SciChart.js in an HTML Page using CDN, leverages JavaScript’s async/await pattern to handle initialization tasks. Each line series is configured using the FastLineRenderableSeries along with the XyDataSeries for data binding as described in the Tutorial 02 - Adding Series and Data to an HTML Page - SciChart. Animations such as sweep, wave, and fade effects are applied to enhance visual rendering, following guidelines from the Series Startup Animations | JavaScript Chart Documentation - SciChart.

Features and Capabilities

Real-time Updates and Advanced Customizations: The example demonstrates dynamic data updates and advanced configurations including digital (step) line charts, which are enabled by setting the isDigitalLine property as detailed in The Digital (Step) Line Series | JavaScript Chart Documentation. Additional features include per-point styling using palette providers for gradient and threshold-based coloring, as well as handling data gaps with discontinuous line rendering. Interactive tooltips are enabled using modifiers such as the RolloverModifier, which you can learn more about from the Rollover Modifier | JavaScript Chart Documentation - SciChart.

Integration and Best Practices

The example adheres to best practices by decoupling the chart creation logic into modular asynchronous functions for improved maintainability and performance. Developers are encouraged to follow efficient error handling and resource management guidelines to optimize WebGL and WebAssembly performance. With an emphasis on responsive design using CSS Flexbox for layout management, this example serves as a robust reference for integrating SciChart.js in standalone JavaScript projects. For more details on performance and advanced customization, review the official SciChart documentation linked throughout this overview.