[Therion] Re: Metapost code for pendant and stromatolite symbols

[Martin Sluka]

Just third link: sniper logo. Use the part of code you need.



% sniperlogo.mp
% L. Nobre G.
% 2012

prologues := 1;

beginfig(1);
  numeric u, ray, siz, xdis, ang, mar, i;
  u = 1cm;
  siz = 5u;
  ray = siz/6;
  fill fullcircle scaled (2*(siz+ray));
  xdis = (siz-2*ray) +-+ (2*ray);
  ang = angle(xdis,2*ray);
  z1 = (siz-ray)*dir(ang);
  z2 = (siz-ray)*dir(90-ang);
  z3 = (ray,(siz-2*ray)*cosd(ang));
  z4 = z3 xscaled -1;
  z5 = z2 xscaled -1;
  z6 = z1 xscaled -1;
  for i=7 upto 16:
    z[i] = z[i-4] rotated 90;
  endfor;
  for i=0 upto 3:
    z[21+i] = (siz-ray)*dir(45+90*i);
  endfor;
  path sniperpath;
  sniperpath = z1{dir(ang+90)}..z21..{dir(180-ang)}z2..z3{down}..{up}z4..
    z5{dir(180+ang)}..z22..{dir(270-ang)}z6..z7{right}..{left}z8..
    z9{dir(270+ang)}..z23..{dir(-ang)}z10..z11{up}..{down}z12..
    z13{dir(ang)}..z24..{dir(90-ang)}z14..z15{left}..{right}z16..cycle;
  unfill sniperpath rotated 45;
%  draw sniperpath;
%  drawoptions( withcolor red );
%  dotlabels(1,2,3,4,5,6,7,8,9,21,22)
endfig;

end.



On Nov 11, 2014, at 01:30 PM, Bill Gee <bgee at campercaver.net> wrote:

Hi Martin -

I looked over the Metapost samples on the Therion Wiki but found nothing that 
seemed useful. I have done some Metapost code for symbols like stalactites 
and stalacmites, and I modified the popcorn symbol, so Metapost is not 
completely alien to my experience. I am no expert, though.

The pendant symbol is a bit of a challenge because it is not straight lines. 
I need to figure out how to draw curved lines for it.

The stromatolite symbol is even more of a challenge because I can't find 
anything to draw! One of my caving buddies has created his own symbol. He 
did it as a small jpg file, and I think I could do it in Metapost without much 
trouble. I would like to use an official symbol, if such a thing exists.

Regards - Bill Gee


On Tuesday, November 11, 2014 08:55:42 Martin Sluka wrote:
> Try to check the links on wiki, there are many of examples how to use
> metapost. The simplest way is to find something similar you need and modify
> code.
> 
> m.s.
> 
> 10. 11. 2014 v 17:39, Bill Gee <bgee at campercaver.net>:
> > Hello everyone -
> > 
> > I need to put some pendants and stromatolites on a map. I do not see
> > these
> > symbols in Therion. Has anyone already done the Metapost code for them?
> > 
> > The symbol for a pendant looks sort of like the Greek letter upsilon,
> > except it has rounded corners instead of sharp.
> > 
> > Attached is a bit of the sketch I am working from which shows the pendant
> > symbol.
> > 
> > Thanks - Bill Gee
> > 
> > <MillCreekSymbols3.jpg>_______________________________________________
> > Therion mailing list
> > Therion at speleo.sk
> > http://mailman.speleo.sk/mailman/listinfo/therion
> 
> _______________________________________________
> Therion mailing list
> Therion at speleo.sk
> http://mailman.speleo.sk/mailman/listinfo/therion

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