{"id":20893423,"url":"https://github.com/arction/lcjs-example-0452-pielut","last_synced_at":"2025-03-12T19:14:33.046Z","repository":{"id":98723628,"uuid":"267799931","full_name":"Arction/lcjs-example-0452-pielut","owner":"Arction","description":"A demo application showcasing using LightningChart JS Pie Chart with a lookup table for styling.","archived":false,"fork":false,"pushed_at":"2025-02-05T11:37:32.000Z","size":9792,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-02-05T12:31:53.890Z","etag":null,"topics":["data-visualization","demo","example","lcjs","lightningchart-js","pie-chart"],"latest_commit_sha":null,"homepage":"https://www.arction.com/lightningchart-js-interactive-examples/examples/lcjs-example-0452-pieLUT.html","language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Arction.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-05-29T07:56:41.000Z","updated_at":"2025-02-05T11:35:55.000Z","dependencies_parsed_at":"2025-02-05T12:28:39.506Z","dependency_job_id":"5ab0b287-af68-479a-8287-d10236e087a8","html_url":"https://github.com/Arction/lcjs-example-0452-pielut","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Arction%2Flcjs-example-0452-pielut","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Arction%2Flcjs-example-0452-pielut/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Arction%2Flcjs-example-0452-pielut/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Arction%2Flcjs-example-0452-pielut/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Arction","download_url":"https://codeload.github.com/Arction/lcjs-example-0452-pielut/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":243277498,"owners_count":20265352,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["data-visualization","demo","example","lcjs","lightningchart-js","pie-chart"],"created_at":"2024-11-18T10:15:46.914Z","updated_at":"2025-03-12T19:14:33.009Z","avatar_url":"https://github.com/Arction.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# JavaScript Pie Chart with Lookup table\n\n![JavaScript Pie Chart with Lookup table](pieLUT-darkGold.png)\n\nThis demo application belongs to the set of examples for LightningChart JS, data visualization library for JavaScript.\r\n\r\nLightningChart JS is entirely GPU accelerated and performance optimized charting library for presenting massive amounts of data. It offers an easy way of creating sophisticated and interactive charts and adding them to your website or web application.\r\n\r\nThe demo can be used as an example or a seed project. Local execution requires the following steps:\r\n\r\n-   Make sure that relevant version of [Node.js](https://nodejs.org/en/download/) is installed\r\n-   Open the project folder in a terminal:\r\n\r\n          npm install              # fetches dependencies\r\n          npm start                # builds an application and starts the development server\r\n\r\n-   The application is available at _http://localhost:8080_ in your browser, webpack-dev-server provides hot reload functionality.\r\n\n\n## Description\n\nLookup table stores information about values and its associated colors. It provides efficient lookup of the color based on provided value as well as linear and step interpolation between colors.\r\n\r\nThe current example shows usage of lookup table with a Pie Chart.\r\n\r\n```javascript\r\n// create LUT from 0..120 with gradient steps.\r\nconst lut = new LUT( {\r\n    steps: [\r\n        { value: 20, color: ColorRGBA( 255, 0, 24 ) },\r\n        { value: 40, color: ColorRGBA( 255, 165, 44 ) },\r\n        { value: 60, color: ColorRGBA( 255, 255, 65 ) },\r\n        { value: 80, color: ColorRGBA( 0, 128, 24 ) },\r\n        { value: 100, color: ColorRGBA( 0, 0, 249 ) },\r\n        { value: 120, color: ColorRGBA( 134, 0, 125 ) }\r\n    ],\r\n    interpolate: true\r\n}\r\n```\r\n\r\nCreate a Pie Chart and attach lookup table to fill the slices with colors based on value.\r\n\r\n```javascript\r\n// Create a new Pie Chart\r\nconst chart = lightningChart()\r\n    .Pie({ type: PieChartTypes.LabelsOnSides })\r\n    .setAnimationsEnabled(true)\r\n    .setMultipleSliceExplosion(true)\r\n    .setLabelFormatter(SliceLabelFormatters.NamePlusValue)\r\n    .setSliceSorter(SliceSorters.None)\r\n    // Attach lookup table.\r\n    .setLUT(lut)\r\n    .setLabelConnectorGap(10)\r\n```\r\n\n\n## API Links\n\n* [Pie chart]\n* [Pie Slice label formatter]\n* [Lookup table]\n\n\n## Support\n\nIf you notice an error in the example code, please open an issue on [GitHub][0] repository of the entire example.\r\n\r\nOfficial [API documentation][1] can be found on [LightningChart][2] website.\r\n\r\nIf the docs and other materials do not solve your problem as well as implementation help is needed, ask on [StackOverflow][3] (tagged lightningchart).\r\n\r\nIf you think you found a bug in the LightningChart JavaScript library, please contact sales@lightningchart.com.\r\n\r\nDirect developer email support can be purchased through a [Support Plan][4] or by contacting sales@lightningchart.com.\r\n\r\n[0]: https://github.com/Arction/\r\n[1]: https://lightningchart.com/lightningchart-js-api-documentation/\r\n[2]: https://lightningchart.com\r\n[3]: https://stackoverflow.com/questions/tagged/lightningchart\r\n[4]: https://lightningchart.com/support-services/\r\n\n© LightningChart Ltd 2009-2022. All rights reserved.\r\n\n\n[Pie chart]: https://lightningchart.com/js-charts/api-documentation/v7.0.1/classes/PieChart.html\n[Pie Slice label formatter]: https://lightningchart.com/js-charts/api-documentation/v7.0.1/types/SliceLabelFormatter.html\n[Lookup table]: https://lightningchart.com/js-charts/api-documentation/v7.0.1/classes/LUT.html\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Farction%2Flcjs-example-0452-pielut","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Farction%2Flcjs-example-0452-pielut","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Farction%2Flcjs-example-0452-pielut/lists"}