<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body dir="auto"><div dir="auto">Not able to test just now, but think I noticed the same thing some time ago.</div><div dir="auto">I recall it took me a few attempts to understand what was happening. Would likely stall an inexperienced user. As with Martin, the durable solution I came up with was to name each station to be joined. Inconvenient when it is as plain as start and end. </div><div dir="auto">Long term I think changing the behaviour so that flipping does not renumber line points would be desirable. Might break some of my outputs, but then joining flipped and unflipped scraps is not that common. </div><div dir="auto"><br></div><div dir="auto">A possibly similar or related issue I assume was already resolved. Search on github for closed issues 'flip'.</div><div dir="auto"><br></div><div dir="auto">Bruce</div><div dir="auto"><br></div><div id="composer_signature" dir="auto"><div style="font-size:12px;color:#575757" dir="auto">Sent from my Galaxy</div></div><div dir="auto"><br></div><div><br></div><div align="left" dir="auto" style="font-size:100%;color:#000000"><div>-------- Original message --------</div><div>From: alastair gott <alastairgott@hotmail.com> </div><div>Date: 23/10/23 05:09 (GMT+12:00) </div><div>To: Therion Mailing List <therion@speleo.sk> </div><div>Subject: [Therion] -flip horizontal and line numbering </div><div><br></div></div>
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<div>Hi Therion people,</div>
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<div dir="ltr">I've just noticed that flipping an extended elevation scrap using “-flip horizontal” it changes the numbering of the lines points on the th2 file when the file is processed by the config file. </div>
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<div dir="ltr">I was trying to line join the top line of one elevation survey with the top line of another survey using "join linetop@normal:end linetop@flipped:0" as the “normal:end” line was accidentally drawn clockwise and “flipped:0” was drawn anti-clockwise
it makes sense that end and zero were the join points</div>
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<div dir="ltr">However when the file was run it was necessary to change it to be <span style="text-decoration: none; display: inline !important; background-color: rgb(255, 255, 255);">"join linetop@normal:end linetop@flipped:<b><u>end" </u></b></span><span style="font-size: inherit;">to
get the two lines to join, it's not a problem, just something I wasn't </span><span style="font-size: inherit;">aware of.</span></div>
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<div dir="ltr">Regards<span>,<br>
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<div dir="ltr"><span>Alastair.</span></div>
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