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On 2/27/2023 5:33 PM, Hilaire Fernandes via Cuis-dev wrote:
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<div class="moz-cite-prefix">Le 26/02/2023 à 11:07, Barry Perryman
via Cuis-dev a écrit :<br>
</div>
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cite="mid:26DF3EB3-92F9-4867-BBFE-E0E902E47833@gmail.com">
<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.</blockquote>
<p>I see.</p>
<p>I have not checked it yet, I remember discussing with Juan
about the possibility to alter the center of rotation.<br>
</p>
<p>Juan will it not be better to keep it backward compatible: if
not specified the center of rotation will be (0;0)?<br>
</p>
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<br>
I felt that for casual playing with Morphs with (for instance) the
halos, it was more intuitive to just rotate around the center. Of
course, any morph is free to redefine #rotationCenter as
appropriate.<br>
<br>
Thanks,<br>
<br>
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type="cite">
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cite="mid:26DF3EB3-92F9-4867-BBFE-E0E902E47833@gmail.com">
<div><br>
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<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>
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<p>Yep.</p>
<p>Thanks<br>
</p>
<pre class="moz-signature" cols="72">--
GNU Dr. Geo
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://drgeo.eu">http://drgeo.eu</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://blog.drgeo.eu">http://blog.drgeo.eu</a></pre>
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<br>
<br>
<pre class="moz-signature" cols="72">--
Juan Vuletich
cuis.st
github.com/jvuletich
researchgate.net/profile/Juan-Vuletich
independent.academia.edu/JuanVuletich
patents.justia.com/inventor/juan-manuel-vuletich
linkedin.com/in/juan-vuletich-75611b3
twitter.com/JuanVuletich</pre>
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