image.src=tr.ui.b.extractUrlString(imageContent);image.onload=function(){const canvas=document.createElement('canvas');const ctx=canvas.getContext('2d');canvas.width=image.width;canvas.height=image.height;ctx.drawImage(image,0,0);const imageData=ctx.getImageData(0,0,canvas.width,canvas.height);callback(imageData);};},onQuadStackViewSelectionChange_(e){const selectableQuads=e.quads.filter(function(q){return q.selectionToSetIfClick...