Many informations and examples according surveying data are in Survex manual.
Odesláno z iPhonu 10. 5. 2018 v 10:20, Nick Bairstow via Therion <[email protected]>: > Thanks Bruce very clear examples of surface flags. I now understand their use. > > From: Therion [mailto:[email protected]] On Behalf Of Bruce Mutton > via Therion > Sent: 09 May 2018 21:02 > To: 'List for Therion users' <[email protected]> > Cc: Bruce Mutton <[email protected]> > Subject: Re: [Therion] Therion Map Header Overrides > > Nick > Here are some examples of various ‘flags’ usage, for shot flags, not to be > confused with station flags. They are a survey property, not so much a > drawing property. > > Approximate and duplicate: > https://therion.speleo.sk/wiki/extend?s[]=flags#summary_of_all_extend_options_for_survey_centrelines > and scroll down to the code below “Creating links between separate caves > that are close to each other”. That one is a bit oddball, not typical usage. > > https://therion.speleo.sk/wiki/metapost?s[]=flags#general_symbol_examples to > redefine centrelines to reflect flag states. > > And, um, yes, there is not too much on actual usage examples for flags > surface. Here is a snippet from my last Sunday’s survey efforts. A short > cave that required three ptopo files to adequately capture it. It is part of > a survey loop that goes out of one entrance and into another… > > data normal from to tape compass clino ignoreall > … > #following legs are within the cave > #3.18 3.19 2.099 355.01 -32.84 3.19 entrance rock > #3.18 3.19 2.098 355.2 -32.67 > #3.18 3.19 2.098 355.31 -32.69 > 3.18 3.19 2.098 355.11 -32.73 Calculated leg from 3 > above > 3.19 - 0.269 49.83 -12.76 > 3.19 - 0.588 43.99 45.86 > 3.19 - 0.714 21.48 76.27 > … > > flags surface > #following legs are on the surface > # extend right > #3.19 3.20 2.819 254.97 -14.44 3.21 other entrance rock > #3.19 3.20 2.818 255.03 -14.34 > #3.19 3.20 2.819 255.11 -14.33 > 3.19 3.20 2.819 255.0 -14.37 Calculated leg from 3 > above > 3.20 - 0.556 102.47 -59.13 > 3.20 - 1.045 129.78 5.18 > #3.20 3.21 6.017 207.42 -12.3 > #3.20 3.21 6.026 207.53 -12.4 > #3.20 3.21 6.067 207.48 -12.46 > 3.20 3.21 6.037 207.47 -12.39 Calculated leg from 3 > above > > flags not surface > #following legs are within the cave > 3.21 - 1.275 43.78 -4.28 > 3.21 - 2.58 41.32 3.61 > 3.21 - 2.914 39.54 15.74 > … > # extend left > #3.21 3.22 3.613 113.19 23.44 > #3.21 3.22 3.616 113.08 23.59 > #3.21 3.22 3.609 113.05 23.6 #rename 3.22 as 3.14 to > acknowledge loop > 3.21 3.14 3.613 113.13 23.55 Calculated leg from 3 > above > 3.14 - 4.408 324.85 -51.94 > > The survey-list output for this cave looks like… > > Title > Length > Depth > Explored > Approx. > Duplicate > Surface > Shots > Stations > Wairoa Valley Cave, Nelson > 128 > 10 > 0 > 0 > 3 > 9 > 428 > 431 > 1-Wairoa > 46 > 7 > 0 > 0 > 0 > 0 > 131 > 132 > 2-Upper, Wairoa Cave > 15 > 3 > 0 > 0 > 0 > 0 > 61 > 62 > 3-Downstream, Wairoa Cave > 67 > 3 > 0 > 0 > 0 > 9 > 235 > 235 > > The total survey length (surface + cave + duplicate) is 140m, and 9m of it is > on the surface. There is also 3m of survey in there that is duplicated > (happens to be a nosurvey “shot” for a visual-only connection established at > the whole-cave level of survey. > > Bruce > > From: Therion <[email protected]> On Behalf Of Nick Bairstow via > Therion > Sent: Thursday, 10 May 2018 3:02 AM > To: List for Therion users <[email protected]> > Cc: Nick Bairstow <[email protected]> > Subject: Re: [Therion] Therion Map Header Overrides > > Bruce, I have never used flags. I have just been though the Therion book and > wiki for information but for clarification could you post an example of > surface flag use please. > > Thanks. > > Nick > > > From: Therion [mailto:[email protected]] On Behalf Of Bruce Mutton > via Therion > Sent: 09 May 2018 11:04 > To: 'List for Therion users' <[email protected]> > Cc: Bruce Mutton <[email protected]> > Subject: [Therion] Therion Map Header Overrides > > Nick > > The override below is to change the Therion default team, cave length, > > cave depth data on the map output. Used in this case because a short > > surface survey needed to be shown on the map but the data was skewing the > > actual cave length and depth. > > I’m not sure that is a very good way to deal with the issue. > In the screenshot below I have a surface survey shown (green dots), > designated surface by use of ‘flags surface’, ‘flags not surface’ interleaved > with the survey data as appropriate. No need to fudge the cave length or > depth because Therion does not include surface data in the cave length. > There is some complexity around it, but you can show or hide the cave and > surface centrelines using; > symbol-show group surface-centreline > symbol-hide group cave-centreline > Bruce > > <image001.jpg> > > > _______________________________________________ > Therion mailing list > [email protected] > https://mailman.speleo.sk/listinfo/therion
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