<div dir="ltr"><div class="gmail_default" style="font-size:small">Hi Evaristo<br><br></div><div class="gmail_default" style="font-size:small">Indeed the line rope needs some additions in an elegant way :). Occasionally I have also wanted to make a Y-anchor without the dot in the middle. But I hadn't had the time to add this feature. It can be done by adding extra line point options. Similar to "adjust horizontal", "l-size", etc for "line:wall".<br></div><div class="gmail_default" style="font-size:small">This will require modifications to both the Metapost code to draw the symbol, and to the therion c++ code that parses the options.<br></div><div class="gmail_default" style="font-size:small">It would be possible to draw different types of anchors depending on the line point option, but I am not sure if it will be easy to reflect the used anchors in the legend.<br><br></div><div class="gmail_default" style="font-size:small">Actually it would be best if there are both ways of setting an anchor: with a line point option, or with a separate point "anchor" with different options. The "anchor" point already exists, but is only one type.<br><br></div><div class="gmail_default" style="font-size:small">When I draw a rope I always use it with "rebelays off" now and draw the rebelays with a Bezier line. This allows me better control, because the automatic rebelay curves don't always fit well in the pit shape.<br><br></div><div class="gmail_default" style="font-size:small">Evaristo, if you want to work on the code, I can try to help. The above are all nice ideas, like many others, but I personally don't have the time to experiment with implementing them.<br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Vladimir<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Feb 1, 2018 at 1:57 PM, Evaristo Quiroga via Therion <span dir="ltr"><<a href="mailto:therion@speleo.sk" target="_blank">therion@speleo.sk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Hi,</p>
<p>I greatly appreciate the improvement made by Vladimir at the rope
line symbol.</p>
<p><a class="m_8479800413231117111moz-txt-link-freetext" href="https://www.mail-archive.com/therion@speleo.sk/msg05992.html" target="_blank">https://www.mail-archive.com/<wbr>therion@speleo.sk/msg05992.<wbr>html</a></p>
<p>With this symbol you can control if the rope section has anchors
and rebelays, as line options. This options are global to the
line: have or not rebelays or anchors. <br>
</p>
<p>Now a I need to go more ahead, I want control the anchor type
(natural: tree, block, etc or artificial: spit, multimonti,
parabolt, etc) in every point and the rebelay in previous section.
I want a <span id="m_8479800413231117111result_box" class="m_8479800413231117111short_text" lang="en"><span>round point for artificial anchor (like the Vladimir
symbol) and a triangle point for natural anchor.<br>
</span></span></p>
<p>When we rig with Y knots and deviators you need to control the
line section without rebelays and anchors, <span id="m_8479800413231117111result_box" lang="en"><span>so that the rope is straight
and the knots do not appear as anchors. (see attached figure).
<br>
</span></span></p>
<p><span id="m_8479800413231117111result_box" lang="en"><span>Now I
have to way to implement this in Therion: the easy and the
elegant.</span></span></p>
<p><span id="m_8479800413231117111result_box" lang="en"><span>Easy.
Create two new point symbols for natural and artificial
anchors. And use the rope line symbol with rebelay and anchor
OFF in the rope section with Y and deviators, and ON in the
other sections. <br>
</span></span></p>
<p><span id="m_8479800413231117111result_box" lang="en"><span>Elegant.
Create a new rope line symbol, where I can control in every
point the anchor type (Natural, Artificial or None, for knot)
and the rebelay rope effect in the previous rope section. I
think we can do this by defining options to the line point. I
know other have implemented similar option, like "adjust
horizontal". To do this a need code examples with similar
option implementation to inspire me. <br>
</span></span></p>
<p><span id="m_8479800413231117111result_box" lang="en"><span>Thanks,</span></span></p>
<p><span id="m_8479800413231117111result_box" lang="en"><span>Evaristo.
<br>
</span></span></p>
</div>
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