StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics https://doi.org/10.1109/TVCG.2020.3030352
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StackGenVis/frontend/node_modules/vega-canvas/build/vega-canvas.node.js

59 lines
1.1 KiB

4 years ago
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
function domCanvas(w, h) {
if (typeof document !== 'undefined' && document.createElement) {
var c = document.createElement('canvas');
if (c && c.getContext) {
c.width = w;
c.height = h;
return c;
}
}
return null;
}
function domImage() {
return typeof Image !== 'undefined' ? Image : null;
}
var NodeCanvas;
try {
NodeCanvas = require('canvas');
if (!(NodeCanvas && NodeCanvas.createCanvas)) {
NodeCanvas = null;
}
} catch (error) {
// do nothing
}
function nodeCanvas(w, h, type) {
if (NodeCanvas) {
try {
return new NodeCanvas.Canvas(w, h, type);
} catch (e) {
// do nothing, return null on error
}
}
return null;
}
function nodeImage() {
return (NodeCanvas && NodeCanvas.Image) || null;
}
function canvas(w, h, type) {
return domCanvas(w, h) || nodeCanvas(w, h, type) || null;
}
function image() {
return domImage() || nodeImage() || null;
}
exports.canvas = canvas;
exports.image = image;
exports.domCanvas = domCanvas;
exports.nodeCanvas = nodeCanvas;