Well,
That's definitely not what I wanted to hear but that's life... Can you both send me one or 2 th2 files so I can better understand how to deal with them? A typical one and, maybe, a non-typical but important one also? After a way too long respite I am working again in Mapiah the, I wish some day, userfriendly and non-vaporware Therion Graphical Interface. Thanks. On Wednesday, January 29th, 2025 at 11:50 AM, Tarquin Wilton-Jones via Therion <[email protected]> wrote: > > > Hi Rodrigo, > > > > A general question: can someone point me a reasonable situation where > > having 2 scraps in the same TH2 file makes sense/is important? > > > It is exceedingly rare for me to have a .th2 with just one scrap. > > If one passage overlaps another, then you need two scraps do they can be > drawn below above/below each other properly (eg. with translucency, or > just hiding the lower passage, or with background colours). That could > just be a short roof tube, or a fork where one climbs over the other. It > would be crazy to have another .th2 file for each of them, since you > probably surveyed them at the same time. So instead, you have two scraps > in the one .th2 file. > > Back before you had smooth-shading, you needed to break your survey into > several scraps just so it could colour them differently by altitude as > the passage sloped uphill (eg. one scrap for every 5 metres altitude > change). You still need to do that if you have abrupt changes in height, > since smooth-shading will not change colour nicely at the edge of the > drop, but it will change colour nicely at the edge of a scrap, as long > as it has the correct stations marked. > > If you have a high level passage that intersects a lower level passage > (so you have a pitch down into it), then continues at high level on the > other side, and you surveyed the upper level stuff all in one survey, > you would have to end the first scrap where it joins the passage, then > create a new scrap on the other side. This is because a scrap cannot > have multiple outlines. Although Therion might sometimes understand it > if you do have 2 outlines in one scrap, it cannot export it properly in > KML format, and struggles with some other outputs too. So you are not > supposed to do it. You are supposed to use two scraps. > > I also have my ropes on a rigging topo in separate scraps from the cave, > so we can use maps to select the rendering with and without some of the > ropes (where a layout can only disable them completely). > > Sometimes, I have another scrap just for adding another layer of > information on a survey, such as hardware serial number labels for fixed > aid maintenance. I don't want them on the main survey since regular > cavers won't know why XY123 is written next to an anchor, but I want > them for when I create a special version of the survey for the hardware > maintainer. > > Lots and lots of reasons :) > > > Cheers, > > Tarquin > _______________________________________________ > Therion mailing list > [email protected] > https://mailman.speleo.sk/listinfo/therion _______________________________________________ Therion mailing list [email protected] https://mailman.speleo.sk/listinfo/therion
