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For a conclusion, the end result is below. <span id="🙂">🙂</span></div>
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<font class="ecxApple-style-span" size="3"><font face="Arial">Regards,</font><font face="Arial"><br>
</font><font face="Arial">Alastair Gott.</font><font face="Arial"><br>
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</font><font face="Arial">AlastairGott@hotmail.com,</font><font face="Arial"><br>
</font><font face="Arial">M: 07931779380.</font></font><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Therion <therion-bounces@speleo.sk> on behalf of Bruce Mutton <bruce@tomo.co.nz><br>
<b>Sent:</b> 31 October 2019 19:07<br>
<b>To:</b> 'List for Therion users' <therion@speleo.sk><br>
<b>Subject:</b> [Therion] Horrific Warping between maps where I want my lines to join</font>
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<p class="x_MsoNormal">>…<span style="font-size:12.0pt; font-family:"Arial",sans-serif; color:black"> don't join in the middle of a chamber...</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Arial",sans-serif">Yes, an interesting thread. As Martin rightly says, joining should not be considered fully automatic, but with care it usually can be, with some provisos.
</span><a href="https://therion.speleo.sk/wiki/tips?s%5b%5d=join#joining_scraps_together">https://therion.speleo.sk/wiki/tips?s[]=join#joining_scraps_together</a></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Arial",sans-serif">Joining in the middle of chambers or passages IS perfectly OK, indeed it is necessary every time there is a passage intersection. You just need to ensure that each affected
passage has a gap in the wall to accept the join! </span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Arial",sans-serif">The only restriction I have found is that there should not be two wide openings opposite each other in the same scrap. In this scenario the scrap is ‘broken in half’ and
while you will get a nice pdf output, the kml plan will not plot properly (unless this feature has been fixed recently).</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Arial",sans-serif">In Alistair’s example, the pair of green circles indicate a passage opening that can be joined.
</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Arial",sans-serif">The pair of brown circles show a passage opening on one side and no corresponding opening on the other.
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Arial",sans-serif">Hence Therion found the nearest opening it could in the scraps it was instructed to join, and in this particular case was trying to join the three nearest openings together.
I predict that an acceptable result would be obtained if a gap were to be opened near the brown circles.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Arial",sans-serif">Bruce</span></p>
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