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LoadTable State
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| height: 310 | |
| scrolling: no | |
| border: no | |
| license: cc-by-4.0 |
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| <!DOCTYPE html> | |
| <meta charset=utf-8> | |
| <script async src=https://cdn.JsDelivr.net/npm/p5></script> | |
| <script defer src=sketch.js></script> |
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| /** | |
| * LoadTable State (v1.1.0) | |
| * GoToLoop (2020-Oct-09) | |
| * | |
| * Discourse.Processing.org/t/loadtable-how-to-handle-missing-file-error/24476/3 | |
| * Bl.ocks.org/GoSubRoutine/823e9f8b008b7481b11d5f4f12a80839 | |
| */ | |
| 'use strict'; | |
| const | |
| CORRECT_NAME = 'xy.csv', WRONG_NAME = 'ab.csv', | |
| STYLE = 'color: yellow; background: blue; font-size: 1.2em;', | |
| DELAY = 120, | |
| [ NO_LOAD, BEGIN_LOAD, WAIT_LOAD, SUCCESS_LOAD, FAIL_LOAD ] = | |
| Uint8Array.from({ length: 5 }, (_, idx) => idx); | |
| var table, loadState = NO_LOAD; | |
| function setup() { | |
| createCanvas(400, 300); | |
| strokeWeight(3).background(0); | |
| console.clear(); | |
| loadState = BEGIN_LOAD; | |
| } | |
| function draw() { | |
| frameCount % DELAY || background('#' + hex(~~random(0x1000), 3)); | |
| if (loadState == BEGIN_LOAD) startLoad(WRONG_NAME); | |
| else if (loadState == FAIL_LOAD) startLoad(CORRECT_NAME); | |
| fill(loadState == SUCCESS_LOAD && 'cyan' || 'fuchsia'); | |
| circle(width >> 1, height >> 1, width >> 1); | |
| } | |
| function startLoad(filename, head = 'header', type = 'csv', style = STYLE) { | |
| console.info('%cLoading: ' + filename, style); | |
| table = loadTable(filename, type, head, successLoad, failLoad); | |
| loadState = WAIT_LOAD; | |
| } | |
| function successLoad(file) { | |
| console.table(file.getArray()); | |
| print(table); | |
| loadState = SUCCESS_LOAD; | |
| } | |
| function failLoad(err) { | |
| console.log(err); | |
| loadState = FAIL_LOAD; | |
| } |
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| x | y | |
|---|---|---|
| 337 | 333 | |
| 337 | 342 | |
| 333 | 390 | |
| 332 | 391 | |
| 328 | 406 |
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