sdk4.0/src/Obj/Element/svg.js

let list = ['icon-py', 'icon-edit', 'icon-add', 'icon-add2', 'icon-minus', 'icon-play', 'icon-pause', 'icon-updateheight', 'icon-draw', 'icon-positions', 'icon-reset', 'icon-xj', 'icon-yj', 'icon-zj', 'icon-close', 'icon-query', 'icon-route', 'icon-copy', 'icon-load', 'icon-rubric', 'icon-pen', 'icon-cross', 'icom-confirm']
function setSvg() {
  let svgElm = document.createElement('svg');
  svgElm.xmlns = 'http://www.w3.org/2000/svg'
  svgElm.style.width = 0
  svgElm.style.height = 0
  svgElm.style.position = 'absolute'
  svgElm.style.overflow = 'hidden'
  document.body.appendChild(svgElm)
  const parser = new DOMParser()
  for (let i = 0; i < list.length; i++) {
    let name = list[i]
    fetch(Cesium.buildModuleUrl(`../custom/img/${name}.svg`))
      .then(r => r.text())
      .then(b => {
        const xmlDoc = parser.parseFromString(b, 'text/xml').getElementsByTagName('svg')[0]
        if(xmlDoc) {
          xmlDoc.id = 'yj-' + name
          svgElm.appendChild(xmlDoc)
        }
      }
      );
  }
}

export { setSvg }