<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div>Hi Hilaire,</div><div><br></div>It doesn’t look like the information on morph rotation is correct any longer - exercises 7.3 and 7.4 and the associated text around that on page 115.<div><br></div><div>When I rotate any of the example morphs from this chapter - the line/cross, triangle and the rectangle - they all rotate about the centre and not the 0@0 point; this includes the triangle, which is fun to see.</div><div><br></div><div>I’ve had a little dig through the morph handle code - just enough to be potentially wrong - and it seems that if a rotation centre isn’t specified then one is computed to be the middle of the morph bounds.</div><div><br></div><div>Finally a really tiny typo - in section 6.2.2, first sentence of third paragraph it reads:</div><div><span style="font-family: CMR10; font-size: 11pt;"><br></span></div><div><span class="Apple-tab-span" style="white-space: pre;"> </span>So far in our model, a torpedo is not subjected to the <i>central <span style="font-family: CMR10; font-size: 11pt;">start</span></i><span style="font-family: CMR10; font-size: 11pt;"><i> gravity pull</i> nor its engine acceleration</span></div><div><br></div><div>I think that the central start should be central star’s.</div><div><br></div><div>regards</div><div><br></div><div>Barry</div></body></html>