<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="400" height="400" viewBox="0 0 400 400"> <defs> <marker id="circle" viewBox="0 0 60 60" refX="30" refY="30" markerUnits="strokeWidth" markerWidth="60" markerHeight="60" orient="0"> <g stroke="blue" fill="transparent"> <circle cx="30" cy="30" r="26"/> </g> </marker> </defs> <path marker-end="url(#circle)" d="M200 200 h1" stroke="red" stroke-width="5"/> </svg>
