Web Dev Solutions

Catalin Mititiuc

import zoom from './modules/zoom'; import pan from './modules/pan'; const optionalZoomFactor = 0.1 //, object = document.querySelector('object') ; // If embedding an SVG using an tag, it's necessary to wait until the // page has loaded before querying its `contentDocument`, otherwise it will be // `null`. window.addEventListener('load', function () { const svg = document.querySelector('svg'), targetEl = svg.querySelector('g.pan-zoom'), //pointer = svg.querySelector('#pointer'), options = { passive: false }; svg.addEventListener('wheel', zoom(targetEl, optionalZoomFactor), options); svg.addEventListener('pointerdown', pan(targetEl), options); //svg.addEventListener('pointermove', e => { // const pt = new DOMPoint(e.clientX, e.clientY), // svgP = pt.matrixTransform(targetEl.getScreenCTM().inverse()); // // pointer.setAttributeNS(null, 'cx', svgP.x); // pointer.setAttributeNS(null, 'cy', svgP.y); //}); });