How to make the vertices not connect to arrows?

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I draw the following graph in Metapost. How to make the vertices of the subgraph with red edges not connect to arrows. The graph I obtained is
enter image description here



I want the vertices looks like the following picture (there is small space between a vertex and the arrows connnected to it). Thank you very much.



enter image description here



beginfig(1) ;

pair A,L,R,N,q;

path p;



A[1] := (0,2cm);



for i=2 upto 5:

A[i] := A[i-1] rotated -360/5;

endfor;



label.top(btex 1  etex, A[1]);

label.rt(btex 2  etex, A[2]);

label.bot(btex 3  etex, A[3]);

label.bot(btex 4  etex, A[4]);

label.lft(btex 5  etex, A[5]);





for i=1 upto 5:

q[i]:=A[i] rotated -36;

endfor;



q[6]:=0.5[A[1], A[4]];



for i=1 upto 6:

draw q[i] withpen pencircle scaled 2bp;

endfor;





for i=1 upto 5:

draw A[i] withpen pencircle scaled 2bp;

endfor;



N[1]:=0.5[A[1],A[4]];

N[2]:=1.5[A[5],N[1]];

N[3]:=0.5[A[5],N[1]];



p[1]:=A[1]..N[2]..A[4];

p[2]:=A[4]..N[3]..A[1];



draw p[1];

draw p[2];



drawarrow subpath(0,1) of p[1];

drawarrow subpath(0,0.2) of p[1];

drawarrow subpath(0,1.8) of p[1];



drawarrow subpath(0,1) of p[2];

drawarrow subpath(0,0.2) of p[2];

drawarrow subpath(0,1.8) of p[2];



N[1]:=0.5[A[2],A[5]];

N[2]:=0.5[A[1],N[1]];



p[3]:=A[2]..N[2]..A[5];





draw p[3];



drawarrow subpath(0,1.3) of p[3];

drawarrow subpath(0,0.5) of p[3];

drawarrow subpath(0,1.8) of p[3];



N[1]:=0.5[A[5],A[3]];

N[2]:=0.5[A[4],N[1]];



p[4]:=A[5]..N[2]..A[3];





draw p[4];



drawarrow subpath(0,0.8) of p[4];

drawarrow subpath(0,0.3) of p[4];

drawarrow subpath(0,1.8) of p[4];



p[5]:=A[3]..A[2];





draw p[5];

drawarrow subpath(0,0.5) of p[5];





drawarrow q[2]..A[2]..q[1] withcolor red;

drawarrow q[5]..A[1]..q[1] withcolor red;

drawarrow q[5]..A[5]..q[4] withcolor red;

drawarrow q[3]..A[4]..q[4] withcolor red;

drawarrow q[3]..A[3]..q[2] withcolor red;





drawarrow q[1].. p[1] intersectionpoint p[3] ..q[6] withcolor red;

drawarrow q[6].. p[3] intersectionpoint p[2] ..q[5] withcolor red;

drawarrow q[4].. p[4] intersectionpoint p[2] ..q[6] withcolor red;

drawarrow q[6].. p[4] intersectionpoint p[1] ..q[3] withcolor red;





endfig;



end





metapost







share|improve this question
























  • Just an honest question to the upvoters? Is this latex related (in order of this site) or there is a better forum to ask this question?
    – koleygr
    5 hours ago








  • 1




    @koleygr METAPOST is part of TeX systems, shipped with texlive and friends. Btw this is TeX S.E., not LaTeX S.E. There also plain TeX users, ConTeXt users and more here.
    – sztruks
    5 hours ago












  • @sztruks... My question was honest, and haven't herd about metapost... Thanks for the info... (ConTeXt is also something I have no idea about and will check it soon). Thanks
    – koleygr
    5 hours ago






  • 2




    @koleygr. No problem, those great tools are not as known as they could be. And my first comment was definatly too rude, apologize.
    – sztruks
    5 hours ago












  • @sztruks.. Just show the edit in your comment... I didn't found rude your first comment... Really.. Not at all.. It was a useful comment for me, and just noticed there that I had asked about "LaTeX related" and not "TeX related" as had too by mistake. But your comment was not rude at all, but a nice comment with enough information I needed to know about.
    – koleygr
    2 hours ago















up vote
2
down vote

favorite












I draw the following graph in Metapost. How to make the vertices of the subgraph with red edges not connect to arrows. The graph I obtained is
enter image description here



I want the vertices looks like the following picture (there is small space between a vertex and the arrows connnected to it). Thank you very much.



enter image description here



beginfig(1) ;

pair A,L,R,N,q;

path p;



A[1] := (0,2cm);



for i=2 upto 5:

A[i] := A[i-1] rotated -360/5;

endfor;



label.top(btex 1  etex, A[1]);

label.rt(btex 2  etex, A[2]);

label.bot(btex 3  etex, A[3]);

label.bot(btex 4  etex, A[4]);

label.lft(btex 5  etex, A[5]);





for i=1 upto 5:

q[i]:=A[i] rotated -36;

endfor;



q[6]:=0.5[A[1], A[4]];



for i=1 upto 6:

draw q[i] withpen pencircle scaled 2bp;

endfor;





for i=1 upto 5:

draw A[i] withpen pencircle scaled 2bp;

endfor;



N[1]:=0.5[A[1],A[4]];

N[2]:=1.5[A[5],N[1]];

N[3]:=0.5[A[5],N[1]];



p[1]:=A[1]..N[2]..A[4];

p[2]:=A[4]..N[3]..A[1];



draw p[1];

draw p[2];



drawarrow subpath(0,1) of p[1];

drawarrow subpath(0,0.2) of p[1];

drawarrow subpath(0,1.8) of p[1];



drawarrow subpath(0,1) of p[2];

drawarrow subpath(0,0.2) of p[2];

drawarrow subpath(0,1.8) of p[2];



N[1]:=0.5[A[2],A[5]];

N[2]:=0.5[A[1],N[1]];



p[3]:=A[2]..N[2]..A[5];





draw p[3];



drawarrow subpath(0,1.3) of p[3];

drawarrow subpath(0,0.5) of p[3];

drawarrow subpath(0,1.8) of p[3];



N[1]:=0.5[A[5],A[3]];

N[2]:=0.5[A[4],N[1]];



p[4]:=A[5]..N[2]..A[3];





draw p[4];



drawarrow subpath(0,0.8) of p[4];

drawarrow subpath(0,0.3) of p[4];

drawarrow subpath(0,1.8) of p[4];



p[5]:=A[3]..A[2];





draw p[5];

drawarrow subpath(0,0.5) of p[5];





drawarrow q[2]..A[2]..q[1] withcolor red;

drawarrow q[5]..A[1]..q[1] withcolor red;

drawarrow q[5]..A[5]..q[4] withcolor red;

drawarrow q[3]..A[4]..q[4] withcolor red;

drawarrow q[3]..A[3]..q[2] withcolor red;





drawarrow q[1].. p[1] intersectionpoint p[3] ..q[6] withcolor red;

drawarrow q[6].. p[3] intersectionpoint p[2] ..q[5] withcolor red;

drawarrow q[4].. p[4] intersectionpoint p[2] ..q[6] withcolor red;

drawarrow q[6].. p[4] intersectionpoint p[1] ..q[3] withcolor red;





endfig;



end





metapost







share|improve this question
























  • Just an honest question to the upvoters? Is this latex related (in order of this site) or there is a better forum to ask this question?
    – koleygr
    5 hours ago








  • 1




    @koleygr METAPOST is part of TeX systems, shipped with texlive and friends. Btw this is TeX S.E., not LaTeX S.E. There also plain TeX users, ConTeXt users and more here.
    – sztruks
    5 hours ago












  • @sztruks... My question was honest, and haven't herd about metapost... Thanks for the info... (ConTeXt is also something I have no idea about and will check it soon). Thanks
    – koleygr
    5 hours ago






  • 2




    @koleygr. No problem, those great tools are not as known as they could be. And my first comment was definatly too rude, apologize.
    – sztruks
    5 hours ago












  • @sztruks.. Just show the edit in your comment... I didn't found rude your first comment... Really.. Not at all.. It was a useful comment for me, and just noticed there that I had asked about "LaTeX related" and not "TeX related" as had too by mistake. But your comment was not rude at all, but a nice comment with enough information I needed to know about.
    – koleygr
    2 hours ago













up vote
2
down vote

favorite









up vote
2
down vote

favorite











I draw the following graph in Metapost. How to make the vertices of the subgraph with red edges not connect to arrows. The graph I obtained is
enter image description here



I want the vertices looks like the following picture (there is small space between a vertex and the arrows connnected to it). Thank you very much.



enter image description here



beginfig(1) ;

pair A,L,R,N,q;

path p;



A[1] := (0,2cm);



for i=2 upto 5:

A[i] := A[i-1] rotated -360/5;

endfor;



label.top(btex 1  etex, A[1]);

label.rt(btex 2  etex, A[2]);

label.bot(btex 3  etex, A[3]);

label.bot(btex 4  etex, A[4]);

label.lft(btex 5  etex, A[5]);





for i=1 upto 5:

q[i]:=A[i] rotated -36;

endfor;



q[6]:=0.5[A[1], A[4]];



for i=1 upto 6:

draw q[i] withpen pencircle scaled 2bp;

endfor;





for i=1 upto 5:

draw A[i] withpen pencircle scaled 2bp;

endfor;



N[1]:=0.5[A[1],A[4]];

N[2]:=1.5[A[5],N[1]];

N[3]:=0.5[A[5],N[1]];



p[1]:=A[1]..N[2]..A[4];

p[2]:=A[4]..N[3]..A[1];



draw p[1];

draw p[2];



drawarrow subpath(0,1) of p[1];

drawarrow subpath(0,0.2) of p[1];

drawarrow subpath(0,1.8) of p[1];



drawarrow subpath(0,1) of p[2];

drawarrow subpath(0,0.2) of p[2];

drawarrow subpath(0,1.8) of p[2];



N[1]:=0.5[A[2],A[5]];

N[2]:=0.5[A[1],N[1]];



p[3]:=A[2]..N[2]..A[5];





draw p[3];



drawarrow subpath(0,1.3) of p[3];

drawarrow subpath(0,0.5) of p[3];

drawarrow subpath(0,1.8) of p[3];



N[1]:=0.5[A[5],A[3]];

N[2]:=0.5[A[4],N[1]];



p[4]:=A[5]..N[2]..A[3];





draw p[4];



drawarrow subpath(0,0.8) of p[4];

drawarrow subpath(0,0.3) of p[4];

drawarrow subpath(0,1.8) of p[4];



p[5]:=A[3]..A[2];





draw p[5];

drawarrow subpath(0,0.5) of p[5];





drawarrow q[2]..A[2]..q[1] withcolor red;

drawarrow q[5]..A[1]..q[1] withcolor red;

drawarrow q[5]..A[5]..q[4] withcolor red;

drawarrow q[3]..A[4]..q[4] withcolor red;

drawarrow q[3]..A[3]..q[2] withcolor red;





drawarrow q[1].. p[1] intersectionpoint p[3] ..q[6] withcolor red;

drawarrow q[6].. p[3] intersectionpoint p[2] ..q[5] withcolor red;

drawarrow q[4].. p[4] intersectionpoint p[2] ..q[6] withcolor red;

drawarrow q[6].. p[4] intersectionpoint p[1] ..q[3] withcolor red;





endfig;



end





metapost







share|improve this question















I draw the following graph in Metapost. How to make the vertices of the subgraph with red edges not connect to arrows. The graph I obtained is
enter image description here



I want the vertices looks like the following picture (there is small space between a vertex and the arrows connnected to it). Thank you very much.



enter image description here



beginfig(1) ;

pair A,L,R,N,q;

path p;



A[1] := (0,2cm);



for i=2 upto 5:

A[i] := A[i-1] rotated -360/5;

endfor;



label.top(btex 1  etex, A[1]);

label.rt(btex 2  etex, A[2]);

label.bot(btex 3  etex, A[3]);

label.bot(btex 4  etex, A[4]);

label.lft(btex 5  etex, A[5]);





for i=1 upto 5:

q[i]:=A[i] rotated -36;

endfor;



q[6]:=0.5[A[1], A[4]];



for i=1 upto 6:

draw q[i] withpen pencircle scaled 2bp;

endfor;





for i=1 upto 5:

draw A[i] withpen pencircle scaled 2bp;

endfor;



N[1]:=0.5[A[1],A[4]];

N[2]:=1.5[A[5],N[1]];

N[3]:=0.5[A[5],N[1]];



p[1]:=A[1]..N[2]..A[4];

p[2]:=A[4]..N[3]..A[1];



draw p[1];

draw p[2];



drawarrow subpath(0,1) of p[1];

drawarrow subpath(0,0.2) of p[1];

drawarrow subpath(0,1.8) of p[1];



drawarrow subpath(0,1) of p[2];

drawarrow subpath(0,0.2) of p[2];

drawarrow subpath(0,1.8) of p[2];



N[1]:=0.5[A[2],A[5]];

N[2]:=0.5[A[1],N[1]];



p[3]:=A[2]..N[2]..A[5];





draw p[3];



drawarrow subpath(0,1.3) of p[3];

drawarrow subpath(0,0.5) of p[3];

drawarrow subpath(0,1.8) of p[3];



N[1]:=0.5[A[5],A[3]];

N[2]:=0.5[A[4],N[1]];



p[4]:=A[5]..N[2]..A[3];





draw p[4];



drawarrow subpath(0,0.8) of p[4];

drawarrow subpath(0,0.3) of p[4];

drawarrow subpath(0,1.8) of p[4];



p[5]:=A[3]..A[2];





draw p[5];

drawarrow subpath(0,0.5) of p[5];





drawarrow q[2]..A[2]..q[1] withcolor red;

drawarrow q[5]..A[1]..q[1] withcolor red;

drawarrow q[5]..A[5]..q[4] withcolor red;

drawarrow q[3]..A[4]..q[4] withcolor red;

drawarrow q[3]..A[3]..q[2] withcolor red;





drawarrow q[1].. p[1] intersectionpoint p[3] ..q[6] withcolor red;

drawarrow q[6].. p[3] intersectionpoint p[2] ..q[5] withcolor red;

drawarrow q[4].. p[4] intersectionpoint p[2] ..q[6] withcolor red;

drawarrow q[6].. p[4] intersectionpoint p[1] ..q[3] withcolor red;





endfig;



end





metapost




metapost






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 1 hour ago









sztruks

1,174716




1,174716










asked 6 hours ago









Jianrong Li

1405




1405












  • Just an honest question to the upvoters? Is this latex related (in order of this site) or there is a better forum to ask this question?
    – koleygr
    5 hours ago








  • 1




    @koleygr METAPOST is part of TeX systems, shipped with texlive and friends. Btw this is TeX S.E., not LaTeX S.E. There also plain TeX users, ConTeXt users and more here.
    – sztruks
    5 hours ago












  • @sztruks... My question was honest, and haven't herd about metapost... Thanks for the info... (ConTeXt is also something I have no idea about and will check it soon). Thanks
    – koleygr
    5 hours ago






  • 2




    @koleygr. No problem, those great tools are not as known as they could be. And my first comment was definatly too rude, apologize.
    – sztruks
    5 hours ago












  • @sztruks.. Just show the edit in your comment... I didn't found rude your first comment... Really.. Not at all.. It was a useful comment for me, and just noticed there that I had asked about "LaTeX related" and not "TeX related" as had too by mistake. But your comment was not rude at all, but a nice comment with enough information I needed to know about.
    – koleygr
    2 hours ago


















  • Just an honest question to the upvoters? Is this latex related (in order of this site) or there is a better forum to ask this question?
    – koleygr
    5 hours ago








  • 1




    @koleygr METAPOST is part of TeX systems, shipped with texlive and friends. Btw this is TeX S.E., not LaTeX S.E. There also plain TeX users, ConTeXt users and more here.
    – sztruks
    5 hours ago












  • @sztruks... My question was honest, and haven't herd about metapost... Thanks for the info... (ConTeXt is also something I have no idea about and will check it soon). Thanks
    – koleygr
    5 hours ago






  • 2




    @koleygr. No problem, those great tools are not as known as they could be. And my first comment was definatly too rude, apologize.
    – sztruks
    5 hours ago












  • @sztruks.. Just show the edit in your comment... I didn't found rude your first comment... Really.. Not at all.. It was a useful comment for me, and just noticed there that I had asked about "LaTeX related" and not "TeX related" as had too by mistake. But your comment was not rude at all, but a nice comment with enough information I needed to know about.
    – koleygr
    2 hours ago
















Just an honest question to the upvoters? Is this latex related (in order of this site) or there is a better forum to ask this question?
– koleygr
5 hours ago






Just an honest question to the upvoters? Is this latex related (in order of this site) or there is a better forum to ask this question?
– koleygr
5 hours ago






1




1




@koleygr METAPOST is part of TeX systems, shipped with texlive and friends. Btw this is TeX S.E., not LaTeX S.E. There also plain TeX users, ConTeXt users and more here.
– sztruks
5 hours ago






@koleygr METAPOST is part of TeX systems, shipped with texlive and friends. Btw this is TeX S.E., not LaTeX S.E. There also plain TeX users, ConTeXt users and more here.
– sztruks
5 hours ago














@sztruks... My question was honest, and haven't herd about metapost... Thanks for the info... (ConTeXt is also something I have no idea about and will check it soon). Thanks
– koleygr
5 hours ago




@sztruks... My question was honest, and haven't herd about metapost... Thanks for the info... (ConTeXt is also something I have no idea about and will check it soon). Thanks
– koleygr
5 hours ago




2




2




@koleygr. No problem, those great tools are not as known as they could be. And my first comment was definatly too rude, apologize.
– sztruks
5 hours ago






@koleygr. No problem, those great tools are not as known as they could be. And my first comment was definatly too rude, apologize.
– sztruks
5 hours ago














@sztruks.. Just show the edit in your comment... I didn't found rude your first comment... Really.. Not at all.. It was a useful comment for me, and just noticed there that I had asked about "LaTeX related" and not "TeX related" as had too by mistake. But your comment was not rude at all, but a nice comment with enough information I needed to know about.
– koleygr
2 hours ago




@sztruks.. Just show the edit in your comment... I didn't found rude your first comment... Really.. Not at all.. It was a useful comment for me, and just noticed there that I had asked about "LaTeX related" and not "TeX related" as had too by mistake. But your comment was not rude at all, but a nice comment with enough information I needed to know about.
– koleygr
2 hours ago










1 Answer
1






active

oldest

votes

















up vote
3
down vote



accepted










Here is an answer : I designed circles around your vertices and used cutbefore and cutafter primitives



beginfig(1) ;

pair A,L,R,N,q;

path p;



A[1] := (0,2cm);



for i=2 upto 5:

   A[i] := A[i-1] rotated -360/5;

endfor;



label.top(btex 1  etex, A[1]);

label.rt(btex 2  etex, A[2]);

label.bot(btex 3  etex, A[3]);

label.bot(btex 4  etex, A[4]);

label.lft(btex 5  etex, A[5]);





for i=1 upto 5:

q[i]:=A[i] rotated -36;

endfor;



q[6]:=0.5[A[1], A[4]];



for i=1 upto 6:

   draw q[i] withpen pencircle scaled 2bp;

endfor;



for i=1 upto 5:

   draw A[i] withpen pencircle scaled 2bp;

endfor;



N[1]:=0.5[A[1],A[4]];

N[2]:=1.5[A[5],N[1]];

N[3]:=0.5[A[5],N[1]];



p[1]:=A[1]..N[2]..A[4];

p[2]:=A[4]..N[3]..A[1];



draw p[1];

draw p[2];



drawarrow subpath(0,1) of p[1];

drawarrow subpath(0,0.2) of p[1];

drawarrow subpath(0,1.8) of p[1];



drawarrow subpath(0,1) of p[2];

drawarrow subpath(0,0.2) of p[2];

drawarrow subpath(0,1.8) of p[2];



N[1]:=0.5[A[2],A[5]];

N[2]:=0.5[A[1],N[1]];



p[3]:=A[2]..N[2]..A[5];



draw p[3];



drawarrow subpath(0,1.3) of p[3];

drawarrow subpath(0,0.5) of p[3];

drawarrow subpath(0,1.8) of p[3];



N[1]:=0.5[A[5],A[3]];

N[2]:=0.5[A[4],N[1]];



p[4]:=A[5]..N[2]..A[3];





draw p[4];



drawarrow subpath(0,0.8) of p[4];

drawarrow subpath(0,0.3) of p[4];

drawarrow subpath(0,1.8) of p[4];



p[5]:=A[3]..A[2];



draw p[5];

drawarrow subpath(0,0.5) of p[5];



%circles that will create buffers around your vertice

path c; 

for i=1 upto 6 :

   c[i]:= fullcircle scaled 4bp shifted q[i] ;

endfor



path r;

 r[1]:= q[2]..A[2]..q[1] ;

 r[2]:= q[5]..A[1]..q[1] ;

 r[3]:= q[5]..A[5]..q[4] ;

 r[4]:= q[3]..A[4]..q[4] ;

 r[5]:= q[3]..A[3]..q[2] ;

 r[6]:= q[1].. p[1] intersectionpoint p[3] ..q[6] ;

 r[7]:= q[6].. p[3] intersectionpoint p[2] ..q[5] ;

 r[8]:= q[4].. p[4] intersectionpoint p[2] ..q[6] ;

 r[9]:= q[6].. p[4] intersectionpoint p[1] ..q[3] ;



%cutafter and cutbefore cut path before and after a pair

drawarrow (r[1] cutbefore c[2] cutafter c[1]) withcolor red;

drawarrow (r[2] cutbefore c[5] cutafter c[1]) withcolor red;

drawarrow (r[3] cutbefore c[5] cutafter c[4]) withcolor red;

drawarrow (r[4] cutbefore c[3] cutafter c[4]) withcolor red;

drawarrow (r[5] cutbefore c[3] cutafter c[2]) withcolor red;

drawarrow (r[6] cutbefore c[1] cutafter c[6]) withcolor red;

drawarrow (r[7] cutbefore c[6] cutafter c[5]) withcolor red;

drawarrow (r[8] cutbefore c[4] cutafter c[6]) withcolor red;

drawarrow (r[9] cutbefore c[6] cutafter c[3]) withcolor red;



endfig ;



end


enter image description here






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    Here is an answer : I designed circles around your vertices and used cutbefore and cutafter primitives



    beginfig(1) ;
    
pair A,L,R,N,q;
    
path p;
    

    
A[1] := (0,2cm);
    

    
for i=2 upto 5:
    
   A[i] := A[i-1] rotated -360/5;
    
endfor;
    

    
label.top(btex 1  etex, A[1]);
    
label.rt(btex 2  etex, A[2]);
    
label.bot(btex 3  etex, A[3]);
    
label.bot(btex 4  etex, A[4]);
    
label.lft(btex 5  etex, A[5]);
    

    

    
for i=1 upto 5:
    
q[i]:=A[i] rotated -36;
    
endfor;
    

    
q[6]:=0.5[A[1], A[4]];
    

    
for i=1 upto 6:
    
   draw q[i] withpen pencircle scaled 2bp;
    
endfor;
    

    
for i=1 upto 5:
    
   draw A[i] withpen pencircle scaled 2bp;
    
endfor;
    

    
N[1]:=0.5[A[1],A[4]];
    
N[2]:=1.5[A[5],N[1]];
    
N[3]:=0.5[A[5],N[1]];
    

    
p[1]:=A[1]..N[2]..A[4];
    
p[2]:=A[4]..N[3]..A[1];
    

    
draw p[1];
    
draw p[2];
    

    
drawarrow subpath(0,1) of p[1];
    
drawarrow subpath(0,0.2) of p[1];
    
drawarrow subpath(0,1.8) of p[1];
    

    
drawarrow subpath(0,1) of p[2];
    
drawarrow subpath(0,0.2) of p[2];
    
drawarrow subpath(0,1.8) of p[2];
    

    
N[1]:=0.5[A[2],A[5]];
    
N[2]:=0.5[A[1],N[1]];
    

    
p[3]:=A[2]..N[2]..A[5];
    

    
draw p[3];
    

    
drawarrow subpath(0,1.3) of p[3];
    
drawarrow subpath(0,0.5) of p[3];
    
drawarrow subpath(0,1.8) of p[3];
    

    
N[1]:=0.5[A[5],A[3]];
    
N[2]:=0.5[A[4],N[1]];
    

    
p[4]:=A[5]..N[2]..A[3];
    

    

    
draw p[4];
    

    
drawarrow subpath(0,0.8) of p[4];
    
drawarrow subpath(0,0.3) of p[4];
    
drawarrow subpath(0,1.8) of p[4];
    

    
p[5]:=A[3]..A[2];
    

    
draw p[5];
    
drawarrow subpath(0,0.5) of p[5];
    

    
%circles that will create buffers around your vertice
    
path c; 
    
for i=1 upto 6 :
    
   c[i]:= fullcircle scaled 4bp shifted q[i] ;
    
endfor
    

    
path r;
    
 r[1]:= q[2]..A[2]..q[1] ;
    
 r[2]:= q[5]..A[1]..q[1] ;
    
 r[3]:= q[5]..A[5]..q[4] ;
    
 r[4]:= q[3]..A[4]..q[4] ;
    
 r[5]:= q[3]..A[3]..q[2] ;
    
 r[6]:= q[1].. p[1] intersectionpoint p[3] ..q[6] ;
    
 r[7]:= q[6].. p[3] intersectionpoint p[2] ..q[5] ;
    
 r[8]:= q[4].. p[4] intersectionpoint p[2] ..q[6] ;
    
 r[9]:= q[6].. p[4] intersectionpoint p[1] ..q[3] ;
    

    
%cutafter and cutbefore cut path before and after a pair
    
drawarrow (r[1] cutbefore c[2] cutafter c[1]) withcolor red;
    
drawarrow (r[2] cutbefore c[5] cutafter c[1]) withcolor red;
    
drawarrow (r[3] cutbefore c[5] cutafter c[4]) withcolor red;
    
drawarrow (r[4] cutbefore c[3] cutafter c[4]) withcolor red;
    
drawarrow (r[5] cutbefore c[3] cutafter c[2]) withcolor red;
    
drawarrow (r[6] cutbefore c[1] cutafter c[6]) withcolor red;
    
drawarrow (r[7] cutbefore c[6] cutafter c[5]) withcolor red;
    
drawarrow (r[8] cutbefore c[4] cutafter c[6]) withcolor red;
    
drawarrow (r[9] cutbefore c[6] cutafter c[3]) withcolor red;
    

    
endfig ;
    

    
end


    enter image description here






    share|improve this answer



























      up vote
      3
      down vote



      accepted










      Here is an answer : I designed circles around your vertices and used cutbefore and cutafter primitives



      beginfig(1) ;
      
pair A,L,R,N,q;
      
path p;
      

      
A[1] := (0,2cm);
      

      
for i=2 upto 5:
      
   A[i] := A[i-1] rotated -360/5;
      
endfor;
      

      
label.top(btex 1  etex, A[1]);
      
label.rt(btex 2  etex, A[2]);
      
label.bot(btex 3  etex, A[3]);
      
label.bot(btex 4  etex, A[4]);
      
label.lft(btex 5  etex, A[5]);
      

      

      
for i=1 upto 5:
      
q[i]:=A[i] rotated -36;
      
endfor;
      

      
q[6]:=0.5[A[1], A[4]];
      

      
for i=1 upto 6:
      
   draw q[i] withpen pencircle scaled 2bp;
      
endfor;
      

      
for i=1 upto 5:
      
   draw A[i] withpen pencircle scaled 2bp;
      
endfor;
      

      
N[1]:=0.5[A[1],A[4]];
      
N[2]:=1.5[A[5],N[1]];
      
N[3]:=0.5[A[5],N[1]];
      

      
p[1]:=A[1]..N[2]..A[4];
      
p[2]:=A[4]..N[3]..A[1];
      

      
draw p[1];
      
draw p[2];
      

      
drawarrow subpath(0,1) of p[1];
      
drawarrow subpath(0,0.2) of p[1];
      
drawarrow subpath(0,1.8) of p[1];
      

      
drawarrow subpath(0,1) of p[2];
      
drawarrow subpath(0,0.2) of p[2];
      
drawarrow subpath(0,1.8) of p[2];
      

      
N[1]:=0.5[A[2],A[5]];
      
N[2]:=0.5[A[1],N[1]];
      

      
p[3]:=A[2]..N[2]..A[5];
      

      
draw p[3];
      

      
drawarrow subpath(0,1.3) of p[3];
      
drawarrow subpath(0,0.5) of p[3];
      
drawarrow subpath(0,1.8) of p[3];
      

      
N[1]:=0.5[A[5],A[3]];
      
N[2]:=0.5[A[4],N[1]];
      

      
p[4]:=A[5]..N[2]..A[3];
      

      

      
draw p[4];
      

      
drawarrow subpath(0,0.8) of p[4];
      
drawarrow subpath(0,0.3) of p[4];
      
drawarrow subpath(0,1.8) of p[4];
      

      
p[5]:=A[3]..A[2];
      

      
draw p[5];
      
drawarrow subpath(0,0.5) of p[5];
      

      
%circles that will create buffers around your vertice
      
path c; 
      
for i=1 upto 6 :
      
   c[i]:= fullcircle scaled 4bp shifted q[i] ;
      
endfor
      

      
path r;
      
 r[1]:= q[2]..A[2]..q[1] ;
      
 r[2]:= q[5]..A[1]..q[1] ;
      
 r[3]:= q[5]..A[5]..q[4] ;
      
 r[4]:= q[3]..A[4]..q[4] ;
      
 r[5]:= q[3]..A[3]..q[2] ;
      
 r[6]:= q[1].. p[1] intersectionpoint p[3] ..q[6] ;
      
 r[7]:= q[6].. p[3] intersectionpoint p[2] ..q[5] ;
      
 r[8]:= q[4].. p[4] intersectionpoint p[2] ..q[6] ;
      
 r[9]:= q[6].. p[4] intersectionpoint p[1] ..q[3] ;
      

      
%cutafter and cutbefore cut path before and after a pair
      
drawarrow (r[1] cutbefore c[2] cutafter c[1]) withcolor red;
      
drawarrow (r[2] cutbefore c[5] cutafter c[1]) withcolor red;
      
drawarrow (r[3] cutbefore c[5] cutafter c[4]) withcolor red;
      
drawarrow (r[4] cutbefore c[3] cutafter c[4]) withcolor red;
      
drawarrow (r[5] cutbefore c[3] cutafter c[2]) withcolor red;
      
drawarrow (r[6] cutbefore c[1] cutafter c[6]) withcolor red;
      
drawarrow (r[7] cutbefore c[6] cutafter c[5]) withcolor red;
      
drawarrow (r[8] cutbefore c[4] cutafter c[6]) withcolor red;
      
drawarrow (r[9] cutbefore c[6] cutafter c[3]) withcolor red;
      

      
endfig ;
      

      
end


      enter image description here






      share|improve this answer

























        up vote
        3
        down vote



        accepted







        up vote
        3
        down vote



        accepted






        Here is an answer : I designed circles around your vertices and used cutbefore and cutafter primitives



        beginfig(1) ;
        
pair A,L,R,N,q;
        
path p;
        

        
A[1] := (0,2cm);
        

        
for i=2 upto 5:
        
   A[i] := A[i-1] rotated -360/5;
        
endfor;
        

        
label.top(btex 1  etex, A[1]);
        
label.rt(btex 2  etex, A[2]);
        
label.bot(btex 3  etex, A[3]);
        
label.bot(btex 4  etex, A[4]);
        
label.lft(btex 5  etex, A[5]);
        

        

        
for i=1 upto 5:
        
q[i]:=A[i] rotated -36;
        
endfor;
        

        
q[6]:=0.5[A[1], A[4]];
        

        
for i=1 upto 6:
        
   draw q[i] withpen pencircle scaled 2bp;
        
endfor;
        

        
for i=1 upto 5:
        
   draw A[i] withpen pencircle scaled 2bp;
        
endfor;
        

        
N[1]:=0.5[A[1],A[4]];
        
N[2]:=1.5[A[5],N[1]];
        
N[3]:=0.5[A[5],N[1]];
        

        
p[1]:=A[1]..N[2]..A[4];
        
p[2]:=A[4]..N[3]..A[1];
        

        
draw p[1];
        
draw p[2];
        

        
drawarrow subpath(0,1) of p[1];
        
drawarrow subpath(0,0.2) of p[1];
        
drawarrow subpath(0,1.8) of p[1];
        

        
drawarrow subpath(0,1) of p[2];
        
drawarrow subpath(0,0.2) of p[2];
        
drawarrow subpath(0,1.8) of p[2];
        

        
N[1]:=0.5[A[2],A[5]];
        
N[2]:=0.5[A[1],N[1]];
        

        
p[3]:=A[2]..N[2]..A[5];
        

        
draw p[3];
        

        
drawarrow subpath(0,1.3) of p[3];
        
drawarrow subpath(0,0.5) of p[3];
        
drawarrow subpath(0,1.8) of p[3];
        

        
N[1]:=0.5[A[5],A[3]];
        
N[2]:=0.5[A[4],N[1]];
        

        
p[4]:=A[5]..N[2]..A[3];
        

        

        
draw p[4];
        

        
drawarrow subpath(0,0.8) of p[4];
        
drawarrow subpath(0,0.3) of p[4];
        
drawarrow subpath(0,1.8) of p[4];
        

        
p[5]:=A[3]..A[2];
        

        
draw p[5];
        
drawarrow subpath(0,0.5) of p[5];
        

        
%circles that will create buffers around your vertice
        
path c; 
        
for i=1 upto 6 :
        
   c[i]:= fullcircle scaled 4bp shifted q[i] ;
        
endfor
        

        
path r;
        
 r[1]:= q[2]..A[2]..q[1] ;
        
 r[2]:= q[5]..A[1]..q[1] ;
        
 r[3]:= q[5]..A[5]..q[4] ;
        
 r[4]:= q[3]..A[4]..q[4] ;
        
 r[5]:= q[3]..A[3]..q[2] ;
        
 r[6]:= q[1].. p[1] intersectionpoint p[3] ..q[6] ;
        
 r[7]:= q[6].. p[3] intersectionpoint p[2] ..q[5] ;
        
 r[8]:= q[4].. p[4] intersectionpoint p[2] ..q[6] ;
        
 r[9]:= q[6].. p[4] intersectionpoint p[1] ..q[3] ;
        

        
%cutafter and cutbefore cut path before and after a pair
        
drawarrow (r[1] cutbefore c[2] cutafter c[1]) withcolor red;
        
drawarrow (r[2] cutbefore c[5] cutafter c[1]) withcolor red;
        
drawarrow (r[3] cutbefore c[5] cutafter c[4]) withcolor red;
        
drawarrow (r[4] cutbefore c[3] cutafter c[4]) withcolor red;
        
drawarrow (r[5] cutbefore c[3] cutafter c[2]) withcolor red;
        
drawarrow (r[6] cutbefore c[1] cutafter c[6]) withcolor red;
        
drawarrow (r[7] cutbefore c[6] cutafter c[5]) withcolor red;
        
drawarrow (r[8] cutbefore c[4] cutafter c[6]) withcolor red;
        
drawarrow (r[9] cutbefore c[6] cutafter c[3]) withcolor red;
        

        
endfig ;
        

        
end


        enter image description here






        share|improve this answer














        Here is an answer : I designed circles around your vertices and used cutbefore and cutafter primitives



        beginfig(1) ;
        
pair A,L,R,N,q;
        
path p;
        

        
A[1] := (0,2cm);
        

        
for i=2 upto 5:
        
   A[i] := A[i-1] rotated -360/5;
        
endfor;
        

        
label.top(btex 1  etex, A[1]);
        
label.rt(btex 2  etex, A[2]);
        
label.bot(btex 3  etex, A[3]);
        
label.bot(btex 4  etex, A[4]);
        
label.lft(btex 5  etex, A[5]);
        

        

        
for i=1 upto 5:
        
q[i]:=A[i] rotated -36;
        
endfor;
        

        
q[6]:=0.5[A[1], A[4]];
        

        
for i=1 upto 6:
        
   draw q[i] withpen pencircle scaled 2bp;
        
endfor;
        

        
for i=1 upto 5:
        
   draw A[i] withpen pencircle scaled 2bp;
        
endfor;
        

        
N[1]:=0.5[A[1],A[4]];
        
N[2]:=1.5[A[5],N[1]];
        
N[3]:=0.5[A[5],N[1]];
        

        
p[1]:=A[1]..N[2]..A[4];
        
p[2]:=A[4]..N[3]..A[1];
        

        
draw p[1];
        
draw p[2];
        

        
drawarrow subpath(0,1) of p[1];
        
drawarrow subpath(0,0.2) of p[1];
        
drawarrow subpath(0,1.8) of p[1];
        

        
drawarrow subpath(0,1) of p[2];
        
drawarrow subpath(0,0.2) of p[2];
        
drawarrow subpath(0,1.8) of p[2];
        

        
N[1]:=0.5[A[2],A[5]];
        
N[2]:=0.5[A[1],N[1]];
        

        
p[3]:=A[2]..N[2]..A[5];
        

        
draw p[3];
        

        
drawarrow subpath(0,1.3) of p[3];
        
drawarrow subpath(0,0.5) of p[3];
        
drawarrow subpath(0,1.8) of p[3];
        

        
N[1]:=0.5[A[5],A[3]];
        
N[2]:=0.5[A[4],N[1]];
        

        
p[4]:=A[5]..N[2]..A[3];
        

        

        
draw p[4];
        

        
drawarrow subpath(0,0.8) of p[4];
        
drawarrow subpath(0,0.3) of p[4];
        
drawarrow subpath(0,1.8) of p[4];
        

        
p[5]:=A[3]..A[2];
        

        
draw p[5];
        
drawarrow subpath(0,0.5) of p[5];
        

        
%circles that will create buffers around your vertice
        
path c; 
        
for i=1 upto 6 :
        
   c[i]:= fullcircle scaled 4bp shifted q[i] ;
        
endfor
        

        
path r;
        
 r[1]:= q[2]..A[2]..q[1] ;
        
 r[2]:= q[5]..A[1]..q[1] ;
        
 r[3]:= q[5]..A[5]..q[4] ;
        
 r[4]:= q[3]..A[4]..q[4] ;
        
 r[5]:= q[3]..A[3]..q[2] ;
        
 r[6]:= q[1].. p[1] intersectionpoint p[3] ..q[6] ;
        
 r[7]:= q[6].. p[3] intersectionpoint p[2] ..q[5] ;
        
 r[8]:= q[4].. p[4] intersectionpoint p[2] ..q[6] ;
        
 r[9]:= q[6].. p[4] intersectionpoint p[1] ..q[3] ;
        

        
%cutafter and cutbefore cut path before and after a pair
        
drawarrow (r[1] cutbefore c[2] cutafter c[1]) withcolor red;
        
drawarrow (r[2] cutbefore c[5] cutafter c[1]) withcolor red;
        
drawarrow (r[3] cutbefore c[5] cutafter c[4]) withcolor red;
        
drawarrow (r[4] cutbefore c[3] cutafter c[4]) withcolor red;
        
drawarrow (r[5] cutbefore c[3] cutafter c[2]) withcolor red;
        
drawarrow (r[6] cutbefore c[1] cutafter c[6]) withcolor red;
        
drawarrow (r[7] cutbefore c[6] cutafter c[5]) withcolor red;
        
drawarrow (r[8] cutbefore c[4] cutafter c[6]) withcolor red;
        
drawarrow (r[9] cutbefore c[6] cutafter c[3]) withcolor red;
        

        
endfig ;
        

        
end


        enter image description here







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited 2 hours ago

























        answered 2 hours ago









        sztruks

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