<svg width="4in" height="2in" viewBox="0 0 4000 2000" version="1.1">
     <desc>File which produces the same effect as the marker example file, but without using markers. </desc>
     <rect x="10" y="10" width="3980" height="1980" fill="none" stroke="blue" stroke-width="10"/>
     <path d="M 1000 750 L 2000 750 L 2500 1250" fill="none" stroke="black" stroke-width="100"/>
     <g transform="translate(2500,1250)">
          <g transform="rotate(45)">
               <g transform="scale(100)">
                    <g transform="translate(0,-1.5)">
                         <clipPath id="cp1">
                              <rect x="-0.5" y="0" width="4" height="3"/>
                         </clipPath>
                         <g clip-path="url(#cp1)">
                              <g transform="scale(.3)">
                                   <g fill="black" stroke="none">
                                   <path d="M 0 0 L 10 5 L 0 10 z"/>
                                   </g>
                              </g>
                         </g>
                    </g>
               </g>
          </g>
     </g>
</svg>
Original SVG source