[Therion] Metapost exit code in therion 6.0.1 and 6.0.2

[A Gott]

HI Everyone,

A friend messaged me while I was lucky enough to escape the UK and get to
spain for some caving, which was great!

I've got back and tonight I tried to look at the problem he was having
outputting in Therion 6.0.1
 I ran his survey in 5.5.3 with no issues whatsoever, I thought he could be
getting a bug from 6.0.1 so i updated my software, and now i'm bugged in
6.0.2 with the metapost exit code on his survey.

####################### metapost log file ########################
This is MetaPost, version 2.00 (TeX Live 2020/W32TeX) (kpathsea version
6.3.2)  22 SEP 2021 21:44
**data.mp
(c:/Program Files (x86)/Therion/texmf/mpost/mpost.mp
(c:/Program Files (x86)/Therion/texmf/mpost/plain.mp
Preloading the plain mem file, version 1.005) ) (./data.mp
{randomseed:=42}
 [1] [2] [3] [4]
[5] [6] [7] [8] [9] [10] [11] [12] [13] [14]
[1]
[Warning: scrap outline intersects itself in scrap
loper-p at inglorious.CusseyMas
ter] [2] [3] [4] [5]
[Warning: scrap outline intersects itself in scrap indy-1p at Indy.CusseyMaster
]
[6] [7] [8] [9] [10] [11] [12]
[Warning: scrap outline intersects itself in scrap
timewarp-3p at Timewarp.CusseyM
aster] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26]
[27]
[Warning: scrap outline intersects itself in scrap
inglorious-1p at inglorious.Cus
seyMaster] [28] [29] [30] [31]
[Warning: scrap outline intersects itself in scrap
mine1 at inglorious.CusseyMaste
r] [32] [33] [34] [35] [36] [37] [38]
[Warning: scrap outline intersects itself in scrap
shattered_dreams-2p at shattere
d_dreams.CusseyMaster] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48]
[49]
[50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] (./mptextmp.mp) [61]
! Logarithm of -64.77 has been replaced by 0.
log->begingroup(if(EXPR2)=0:0else:mlog((EXPR2))/
                                                mlog(10)fi)endgroup
<to be read again>
                   ;
s_altitudebar->...d:=(EXPR1)-(EXPR0);dlog:=log(d);

if.dlog.mod1<0.301:dv:=2;e...
l.10965 ...,(0.00000,0.75000,0.75000,0.00000))("")
                                                  ;
Since I don't take logs of non-positive numbers,
I'm zeroing this one. Proceed, with fingers crossed.

(./mptextmp.mp) (./mptextmp.mp) [62] )

Here is how much of MetaPost's memory you used:
 18042 strings using 388328 characters
 2412656 bytes of node memory
 1681 symbolic tokens
 11i,82n,19p,452b,5f stack positions out of 16i,98n,20p,487b,6f
76 output files written: data-patt.1 .. data.62


#################### end of metapost log file ####################
C:\Program Files (x86)\Therion\therion.exe: error -- metapost exit code -- 2
writing xtherion file ... done


I don't know whether its a bug or whether there is an error with the config
file which only presents in 6.0.1/2
 but I thought I would send it to the list for thoughts?

Alastair.

please find below config file which ran fine in 5.5.3


source CusseyMaster.th


export model -fmt survex -o CusseyMaster.3d

export map -proj [elevation 0]  -layout localside -o CusseyElevation.pdf
export map -proj plan -layout LayoutMapBorder -layout sidesurvey -layout
localplan -layout-map-image 5 20 sw "./arrow.png" -layout-map-header 0 0
off -o CusseyMaster.pdf
#export map -proj plan -layout LayoutMapBorder -layout sidesurvey -layout
localplan -layout-map-image 17 20 sw "./arrow.png" -o CusseyMaster.pdf
export map -proj plan -layout LayoutMapBorder -layout localplan -o
CusseyPlan.pdf


layout sidesurvey
map-image 55 100 s CusseyElevation.pdf
endlayout


layout localside
symbol-set BCRA
symbol-hide group cave-centreline
scale-bar 25 m
map-header 98 97 n
map-comment "Discovered and Explored by Eldon Pothole Club 2020 -
2021<br>Surveyed By: Luke Cafferty, Rob Eavis, Jon Pemberton, Jeff
Wade<br>Survey Drawn By: Rob Eavis<br>Elevation, facing North<br>Entrance:
SK 21545 76524<br>Altitude: 244m<br>"
legend on
  grid bottom
  grid-coords border
  grid-size 10 10 10 m
  #grid-origin 0  0  0 m

colour map-fg [80 89 94]
#colour map-bg [20 39 14]

code metapost
    def s_scalebar (expr l, units, txt) =
  begingroup
    interim warningcheck:=0;
    tmpl:=l / Scale * cm * units / 2;
    tmpx:=l / Scale * cm * units / 5;
    tmph:=5bp; % bar height
  endgroup;
  pickup PenC;
  draw (-tmpl,0)--(tmpl,0)--(tmpl,-tmph)--(-tmpl,-tmph)--cycle;
  p:=(0,0)--(tmpx,0)--(tmpx,-tmph)--(0,-tmph)--cycle;
  for i:=-2.5 step 2 until 2:
    fill p shifted (i * tmpx,0);
  endfor;
  begingroup
    interim labeloffset:=3.5bp;
    for i:=0 step (l/5) until (l-1):
      tmpx:=tmpl * (i * 2 / l - 1);
      label.top(thTEX(decimal (i)),(tmpx,0));
    endfor;
    label.top(thTEX(decimal (l) & "\thinspace" & txt),(tmpl,0));
    label.bot(thTEX("Scale = 1 : " & decimal round(Scale*100)),(0,-tmph));
  endgroup;
enddef;
  endcode

  code tex-map
\legendcontent={%
  \hsize=\legendwidth
  \ifnortharrow\vbox to 0pt{\line{\hfil\northarrow}\vss}\fi
  \edef\tmp{\the\cavename} \ifx\tmp\empty \else
    {\size[40]\the\cavename} \vskip1cm
  \fi
  \ifscalebar\scalebar\vskip1cm\fi
  {\rightskip=0pt plus 3em\parskip=3bp
    \edef\tmp{\the\comment} \ifx\tmp\empty \else
    {\size[12]\the\comment} \par\medskip
    \fi
  }
  \formattedlegend
}

endlayout

layout LayoutMapBorder
code tex-map
  \framethickness=0.5mm
endlayout

####### PLAN #######

layout localplan
symbol-hide group cave-centreline
#scale-bar 20 m
#symbol-hide special scale-bar
symbol-hide special north-arrow

    code tex-map
      \legendtitle={}
      \cavename={}
      \scalebarfalse
      \cavelengthtitle={}
      \cavelength={}
      \cavedepthtitle={}
      \cavedepth={}
    endcode

map-header 5 20 sw
map-comment "Plan View"


colour map-fg depth
#colour map-bg [20 39 14]

endlayout
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