Created
October 30, 2025 14:06
-
-
Save texodus/abd1048630adaf9742d6639142373c79 to your computer and use it in GitHub Desktop.
Perspective Scroll FPS
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!doctype html> | |
| <html> | |
| <head> | |
| <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no" /> | |
| <link rel="preload" href="https://cdn.jsdelivr.net/npm/@perspective-dev/server/dist/wasm/perspective-server.wasm" as="fetch" type="application/wasm" crossorigin="anonymous" /> | |
| <link rel="preload" href="https://cdn.jsdelivr.net/npm/@perspective-dev/viewer/dist/wasm/perspective-viewer.wasm" as="fetch" type="application/wasm" crossorigin="anonymous" /> | |
| <link rel="preload" href="https://cdn.jsdelivr.net/npm/superstore-arrow/superstore.lz4.arrow" as="fetch" type="arraybuffer" crossorigin="anonymous" /> | |
| <link rel="stylesheet" crossorigin="anonymous" href="https://cdn.jsdelivr.net/npm/@perspective-dev/viewer/dist/css/themes.css" /> | |
| <script type="module"> | |
| import "https://cdn.jsdelivr.net/npm/@perspective-dev/viewer/dist/cdn/perspective-viewer.js"; | |
| import "https://cdn.jsdelivr.net/npm/@perspective-dev/viewer-datagrid/dist/cdn/perspective-viewer-datagrid.js"; | |
| import "https://cdn.jsdelivr.net/npm/@perspective-dev/viewer-d3fc/dist/cdn/perspective-viewer-d3fc.js"; | |
| import perspective from "https://cdn.jsdelivr.net/npm/@perspective-dev/client/dist/cdn/perspective.js"; | |
| const worker = await perspective.worker(); | |
| const resp = await fetch("https://cdn.jsdelivr.net/npm/superstore-arrow/superstore.lz4.arrow"); | |
| const arrow = await resp.arrayBuffer(); | |
| const viewer = document.getElementsByTagName("perspective-viewer")[0]; | |
| const table = worker.table(arrow); | |
| await viewer.load(table); | |
| await viewer.restore({ settings: true, plugin_config: { edit_mode: "EDIT" } }); | |
| const datagrid = document.querySelector("perspective-viewer-datagrid").shadowRoot.querySelector("regular-table"); | |
| (async function scroll() { | |
| datagrid.scrollTop += 10; | |
| if (datagrid.scrollTop % 500 === 0) { | |
| console.log(await datagrid.getDrawFPS()); | |
| } | |
| setTimeout(scroll, 10); | |
| })(); | |
| </script> | |
| <style> | |
| perspective-viewer { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| bottom: 0; | |
| right: 0; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <perspective-viewer></perspective-viewer> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment