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Perspective Layout Controls Example
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| license: apache-2.0 |
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| var BATCH_SIZE = 100000; | |
| var MILLIS = 10; | |
| var TOTAL_LIMIT = 1000000; | |
| // Create random rows of data. | |
| function newRows() { | |
| var rows = []; | |
| for (var x = 0; x < BATCH_SIZE; x++) { | |
| rows.push({ | |
| lastUpdate: new Date(), | |
| chg: Math.random() * 20 - 10, | |
| bid: Math.random() * 10 + 90, | |
| ask: Math.random() * 10 + 100, | |
| vol: Math.random() * 10 + 100 | |
| }); | |
| } | |
| return rows; | |
| } | |
| window.addEventListener("WebComponentsReady", function() { | |
| // Get element from the DOM. | |
| var elem = document.getElementsByTagName("perspective-viewer")[0]; | |
| // Create a new Perspective WebWorker instance. | |
| var worker = perspective.worker(); | |
| // Create a new Perspective table in our `worker`. | |
| var table = worker.table(newRows()); | |
| // Load the `table` in the `<perspective-viewer>` DOM reference. | |
| elem.load(table); | |
| elem.toggleConfig(); | |
| // Add rows, throttled using the `update()` method on the `table` directly and stop at the limit. | |
| var count = 0; | |
| (function postRow() { | |
| if (count < TOTAL_LIMIT) { | |
| table.update(newRows()); | |
| count += BATCH_SIZE; | |
| console.log(count); | |
| setTimeout(postRow, MILLIS); | |
| } | |
| })(); | |
| }); |
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| perspective-viewer { | |
| position: absolute; | |
| top: 0; | |
| left: 0; | |
| right: 0; | |
| bottom: 0; | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"> | |
| <script src="https://unpkg.com/@finos/perspective/build/perspective.js"></script> | |
| <script src="https://unpkg.com/@finos/perspective-viewer/build/perspective.view.js"></script> | |
| <script src="https://unpkg.com/@finos/perspective-viewer-hypergrid/build/hypergrid.plugin.js"></script> | |
| <script src="https://unpkg.com/@finos/perspective-viewer-d3fc/build/d3fc.plugin.js"></script> | |
| <script src="example.js"></script> | |
| <link rel='stylesheet' href="index.css"> | |
| <link rel='stylesheet' href="https://unpkg.com/@finos/perspective-viewer/build/material.css" is="custom-style"> | |
| </head> | |
| <body> | |
| <perspective-viewer></perspective-viewer> | |
| </body> | |
| </html> |
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