[Therion] Altitude colors range

Stacho Mudrak lists at group-s.sk
Thu Jan 8 21:11:19 CET 2015


Wrong colors with centerline attached is a bug, that has allways been
there. Just change thscrap.cxx:68 and next line to

this->z = thnan;
this->a = thnan;

and it should be fixed (if you can compile therion). Thanks for finding
this out.

S.



On 8 January 2015 at 19:59, Bruce <bruce at tomo.co.nz> wrote:

>
>
> >Now I have added this into my surveys, I see that the centreline is
>
> rendered as solid lines when you include the centreline (and have not
>
> set the centreline symbol group to be hidden), but if you do not
>
> include the centreline then the survey lines renderer in the scraps
>
> are just dashes at each station rather than complete lines running the
>
> complete distance between pairs of stations. Not a problem, but
>
> curious as to why I get two different styles for cave survey lines.
>
>
>
> *      It has always been this way.  I did delve into the metapost once to
> see why, from a code perspective.  It seems rational behaviour as far as
> 'using it' goes.*
>
>
>
> >Then I tried this on my 66km system survey and with centrelines set to
>
> show in my layout, I found metapost used up all the words of memory it
>
> is allowed so I get no output. From my logfile:
>
> ...
>
> How can I get around this limitation?
>
>
>
> *      Interesting.  I have never come across this limitation, although
> metapost usually logs messages of seeming complaint.  I inquired on the
> forum years ago, and one of the Martin's or Stacho assured me that it
> should never actually run out.  Not sure if I have ever plotted 66km of
> centreline? I have probably come close.*
>
>
>
> >I can see how it is useful to be able to render centrelines and stations
> for the entire system regardless.
>
>
>
> *      Yes, very useful.  I add each survey as it becomes available.  It
> is then in the outputs as a reminder to draw the scraps!  Further - you can
> differentiate the flags that apply to each survey shot with colour and line
> style.*
>
> *See the wiki
> http://therion.speleo.sk/wiki/doku.php/metapost#general_symbol_examples
> <http://therion.speleo.sk/wiki/doku.php/metapost#general_symbol_examples> *
>
>
>
> *Under the heading “Visualize cave centreline shot flags with colour for
> splay and duplicate, and dash for approximate shot flags”*
>
>
>
> *Bruce*
>
>
>
>
>
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>
>
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