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TikZ how to make supply and demand arrows for nodes?

How to define the default vertical distance between nodes?Changing Size of Arrows, Labels, Loops in Diagrams and Directed GraphsTikZ scaling graphic and adjust node position and keep font sizeNumerical conditional within tikz keys?Half arrows in graph using TikZTikZ: Drawing an arc from an intersection to an intersectionWhy does my arrow head size decrease?Parallel arrows between nodes of varying sizeTransform a shape based on existing coordinatesAdding nodes through a TikZ style, using double dash lines ``--``

I have the nodes and arcs modeled in TikZ, but I'm scratching my head about how to draw the 'supply' and 'demand' double arrows (e.g. demand of 2 on node 1, supply of 2 on node 3). Can anybody help? Thanks

what I want

current code, which produces the nodes and arcs (ignoring dashed lines), the demand nodes, but not the double-tailed supply and demand arrows:

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle},

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 3.5)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (s3) {2};

        node at (5.0,-1.0)   [supplynode] (s4) {6};

        node at (6.0,4.0)    [supplynode] (s5) {2};

        node at (11.0,0.0)   [supplynode] (s7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);







end{tikzpicture}

end{document}

what the above code produces:
enter image description here

edited 3 hours ago

asked 4 hours ago

user1757226

514

New contributor

2

Welcome to Stackexchange! According to our guidelines, it would be appreciated to see some MWE to help you based on your current code. Thanks a lot!

– Dave
4 hours ago

with Implies[] from arrows.meta library?

– Zarko
4 hours ago

Thanks @Dave, what is MWE?

– user1757226
4 hours ago

@user1757226 see tex.meta.stackexchange.com/q/228/63847.

– LarrySnyder610
4 hours ago

well, this is only code snippet :-). *mwe*(minimal working example) is complete document beginning with documentclass with needed packages and your definitions in preamble following with document body with your code snippet and with end{document} on the end.

– Zarko
4 hours ago

|
show 1 more comment

what I want

current code, which produces the nodes and arcs (ignoring dashed lines), the demand nodes, but not the double-tailed supply and demand arrows:

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle},

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 3.5)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (s3) {2};

        node at (5.0,-1.0)   [supplynode] (s4) {6};

        node at (6.0,4.0)    [supplynode] (s5) {2};

        node at (11.0,0.0)   [supplynode] (s7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);







end{tikzpicture}

end{document}

what the above code produces:
enter image description here

edited 3 hours ago

asked 4 hours ago

user1757226

514

New contributor

2

Welcome to Stackexchange! According to our guidelines, it would be appreciated to see some MWE to help you based on your current code. Thanks a lot!

– Dave
4 hours ago

with Implies[] from arrows.meta library?

– Zarko
4 hours ago

Thanks @Dave, what is MWE?

– user1757226
4 hours ago

@user1757226 see tex.meta.stackexchange.com/q/228/63847.

– LarrySnyder610
4 hours ago

well, this is only code snippet :-). *mwe*(minimal working example) is complete document beginning with documentclass with needed packages and your definitions in preamble following with document body with your code snippet and with end{document} on the end.

– Zarko
4 hours ago

|
show 1 more comment

what I want

current code, which produces the nodes and arcs (ignoring dashed lines), the demand nodes, but not the double-tailed supply and demand arrows:

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle},

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 3.5)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (s3) {2};

        node at (5.0,-1.0)   [supplynode] (s4) {6};

        node at (6.0,4.0)    [supplynode] (s5) {2};

        node at (11.0,0.0)   [supplynode] (s7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);







end{tikzpicture}

end{document}

what the above code produces:
enter image description here

edited 3 hours ago

asked 4 hours ago

user1757226

514

New contributor

what I want

current code, which produces the nodes and arcs (ignoring dashed lines), the demand nodes, but not the double-tailed supply and demand arrows:

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle},

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 3.5)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (s3) {2};

        node at (5.0,-1.0)   [supplynode] (s4) {6};

        node at (6.0,4.0)    [supplynode] (s5) {2};

        node at (11.0,0.0)   [supplynode] (s7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);







end{tikzpicture}

end{document}

what the above code produces:
enter image description here

tikz-pgf

edited 3 hours ago

asked 4 hours ago

user1757226

514

New contributor

edited 3 hours ago

asked 4 hours ago

user1757226

514

New contributor

edited 3 hours ago

asked 4 hours ago

user1757226

514

New contributor

asked 4 hours ago

user1757226

514

asked 4 hours ago

user1757226

514

New contributor

user1757226 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

2

Welcome to Stackexchange! According to our guidelines, it would be appreciated to see some MWE to help you based on your current code. Thanks a lot!

– Dave
4 hours ago

with Implies[] from arrows.meta library?

– Zarko
4 hours ago

Thanks @Dave, what is MWE?

– user1757226
4 hours ago

@user1757226 see tex.meta.stackexchange.com/q/228/63847.

– LarrySnyder610
4 hours ago

well, this is only code snippet :-). *mwe*(minimal working example) is complete document beginning with documentclass with needed packages and your definitions in preamble following with document body with your code snippet and with end{document} on the end.

– Zarko
4 hours ago

|
show 1 more comment

2

Welcome to Stackexchange! According to our guidelines, it would be appreciated to see some MWE to help you based on your current code. Thanks a lot!

– Dave
4 hours ago

with Implies[] from arrows.meta library?

– Zarko
4 hours ago

Thanks @Dave, what is MWE?

– user1757226
4 hours ago

@user1757226 see tex.meta.stackexchange.com/q/228/63847.

– LarrySnyder610
4 hours ago

well, this is only code snippet :-). *mwe*(minimal working example) is complete document beginning with documentclass with needed packages and your definitions in preamble following with document body with your code snippet and with end{document} on the end.

– Zarko
4 hours ago

Welcome to Stackexchange! According to our guidelines, it would be appreciated to see some MWE to help you based on your current code. Thanks a lot!

– Dave
4 hours ago

with Implies[] from arrows.meta library?

– Zarko
4 hours ago

Thanks @Dave, what is MWE?

– user1757226
4 hours ago

@user1757226 see tex.meta.stackexchange.com/q/228/63847.

– LarrySnyder610
4 hours ago

well, this is only code snippet :-). *mwe*(minimal working example) is complete document beginning with documentclass with needed packages and your definitions in preamble following with document body with your code snippet and with end{document} on the end.

– Zarko
4 hours ago

|
show 1 more comment

2 Answers
2

active

oldest

votes

OK, I'm sure there's a better way to organize things inside the Tikz, but I have found a sufficient answer to my question myself. Posting here for posterity.

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning, arrows.meta}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle} ,

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 4.0)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (d3) {2};

        node at (5.0,-1.5)   [supplynode] (s4) {6};

        node at (6.5,4.0)    [supplynode] (d5) {2};

        node at (11.5,0.0)   [supplynode] (d7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);



        draw[-Implies,line width=1pt,double distance=2pt] (n1) -- (s1);

        draw[-Implies,line width=1pt,double distance=2pt] (n2) -- (s2);

        draw[-Implies,line width=1pt,double distance=2pt] (d3) -- (n3);

        draw[-Implies,line width=1pt,double distance=2pt] (n4) -- (s4);

        draw[-Implies,line width=1pt,double distance=2pt] (d5) -- (n5);

        draw[-Implies,line width=1pt,double distance=2pt] (d7) -- (n7);

end{tikzpicture}

end{document}

produces this, which is sufficient for my needs. Thanks @Zarko for the tip.
enter image description here

answered 3 hours ago

user1757226

514

New contributor

add a comment |

let me convert my comments to the answer ... with some off-topic sugestion :-) :

documentclass[tikz, margin=3mm]{standalone}

usetikzlibrary{arrows.meta, 

                quotes}



begin{document}

    begin{tikzpicture}[auto=left,

every edge/.style = {draw, semithick, -Stealth, shorten > = 1pt},

                        ]

    begin{scope}[every node/.style={circle, draw=black!50, thick}]

node at ( 0.0,0)   (n1) {1};

node at ( 2.5,2.5) (n2) {2};

node at ( 0.0,5.0) (n3) {3};

node at ( 5.0,0.0) (n4) {4};

node at ( 5.0,4.0) (n5) {5};

node at (10.0,5.0) (n6) {6};

node at (10.0,0.0) (n7) {7};

node at ( 7.5,2.5) (n8) {8};

    end{scope}

    begin{scope}[every node/.style={circle}]

node at (-1.0,-1.0) (s1) {2};

node at ( 2.5, 4.0) (s2) {1};

node at (-1.0, 6.0) (d3) {2};

node at ( 5.0,-1.5) (s4) {6};

node at ( 6.5, 4.0) (d5) {2};

node at (11.5, 0.0) (d7) {5};

    end{scope}

path   (n1) edge ["0"] (n3)

        (n2) edge ["3"] (n1)

        (n2) edge ["2"] (n5)

        (n3) edge ["0"] (n2)

        (n3) edge ["1"] (n6)

        (n4) edge ["1"] (n1)

        (n5) edge ["2"] (n4)

        (n6) edge ["1"] (n8)

        (n7) edge ["1"] (n6)

        (n7) edge ["4"] (n4)

        (n8) edge ["3"] (n5)

        (n8) edge ["0"] (n7);

    begin{scope}[every edge/.style = {draw, -Implies, semithick, double distance=1pt}]

path   (n1) edge (s1)

        (n2) edge (s2)

        (d3) edge (n3)

        (n4) edge (s4)

        (d5) edge (n5)

        (d7) edge (n7);

    end{scope}

end{tikzpicture}

end{document}

above mwe gives:

enter image description here

edited 6 mins ago

answered 2 hours ago

Zarko

131k870170

Thanks, Zarko. Your solution is a much more elegant use of Tikz. My solution is definitely brute-force copy/paste to get the job done.

– user1757226
2 hours ago

@user1757226, to be precise: your answer with my suggestion :-), and my answer with my suggestion + off-topic improvements ;-)

– Zarko
1 hour ago

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

OK, I'm sure there's a better way to organize things inside the Tikz, but I have found a sufficient answer to my question myself. Posting here for posterity.

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning, arrows.meta}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle} ,

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 4.0)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (d3) {2};

        node at (5.0,-1.5)   [supplynode] (s4) {6};

        node at (6.5,4.0)    [supplynode] (d5) {2};

        node at (11.5,0.0)   [supplynode] (d7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);



        draw[-Implies,line width=1pt,double distance=2pt] (n1) -- (s1);

        draw[-Implies,line width=1pt,double distance=2pt] (n2) -- (s2);

        draw[-Implies,line width=1pt,double distance=2pt] (d3) -- (n3);

        draw[-Implies,line width=1pt,double distance=2pt] (n4) -- (s4);

        draw[-Implies,line width=1pt,double distance=2pt] (d5) -- (n5);

        draw[-Implies,line width=1pt,double distance=2pt] (d7) -- (n7);

end{tikzpicture}

end{document}

produces this, which is sufficient for my needs. Thanks @Zarko for the tip.
enter image description here

answered 3 hours ago

user1757226

514

New contributor

add a comment |

OK, I'm sure there's a better way to organize things inside the Tikz, but I have found a sufficient answer to my question myself. Posting here for posterity.

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning, arrows.meta}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle} ,

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 4.0)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (d3) {2};

        node at (5.0,-1.5)   [supplynode] (s4) {6};

        node at (6.5,4.0)    [supplynode] (d5) {2};

        node at (11.5,0.0)   [supplynode] (d7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);



        draw[-Implies,line width=1pt,double distance=2pt] (n1) -- (s1);

        draw[-Implies,line width=1pt,double distance=2pt] (n2) -- (s2);

        draw[-Implies,line width=1pt,double distance=2pt] (d3) -- (n3);

        draw[-Implies,line width=1pt,double distance=2pt] (n4) -- (s4);

        draw[-Implies,line width=1pt,double distance=2pt] (d5) -- (n5);

        draw[-Implies,line width=1pt,double distance=2pt] (d7) -- (n7);

end{tikzpicture}

end{document}

produces this, which is sufficient for my needs. Thanks @Zarko for the tip.
enter image description here

answered 3 hours ago

user1757226

514

New contributor

add a comment |

OK, I'm sure there's a better way to organize things inside the Tikz, but I have found a sufficient answer to my question myself. Posting here for posterity.

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning, arrows.meta}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle} ,

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 4.0)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (d3) {2};

        node at (5.0,-1.5)   [supplynode] (s4) {6};

        node at (6.5,4.0)    [supplynode] (d5) {2};

        node at (11.5,0.0)   [supplynode] (d7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);



        draw[-Implies,line width=1pt,double distance=2pt] (n1) -- (s1);

        draw[-Implies,line width=1pt,double distance=2pt] (n2) -- (s2);

        draw[-Implies,line width=1pt,double distance=2pt] (d3) -- (n3);

        draw[-Implies,line width=1pt,double distance=2pt] (n4) -- (s4);

        draw[-Implies,line width=1pt,double distance=2pt] (d5) -- (n5);

        draw[-Implies,line width=1pt,double distance=2pt] (d7) -- (n7);

end{tikzpicture}

end{document}

produces this, which is sufficient for my needs. Thanks @Zarko for the tip.
enter image description here

answered 3 hours ago

user1757226

514

New contributor

OK, I'm sure there's a better way to organize things inside the Tikz, but I have found a sufficient answer to my question myself. Posting here for posterity.

documentclass[]{article}



usepackage{pgf, tikz}

usetikzlibrary{arrows, automata, positioning, arrows.meta}



begin{document}

begin{tikzpicture}

[roundnode/.style={circle,draw=black!50,thick},

supplynode/.style={circle} ,

 > = stealth, % arrow head style

            shorten > = 1pt, % don't touch arrow head to node

            auto,

            node distance = 3cm, % distance between nodes

            semithick % line style

]

        node at (0,0)      [roundnode] (n1) {1};

        node at (2.5,2.5)  [roundnode] (n2) {2};

        node at (0.0,5.0)  [roundnode] (n3) {3};

        node at (5.0,0.0)  [roundnode] (n4) {4};

        node at (5.0,4.0)  [roundnode] (n5) {5};

        node at (10.0,5.0) [roundnode] (n6) {6};

        node at (10.0,0.0) [roundnode] (n7) {7};

        node at (7.5,2.5)  [roundnode] (n8) {8};



        node at (-1.0, -1.0) [supplynode] (s1) {2};

        node at (2.5, 4.0)   [supplynode] (s2) {1};

        node at (-1.0, 6.0)  [supplynode] (d3) {2};

        node at (5.0,-1.5)   [supplynode] (s4) {6};

        node at (6.5,4.0)    [supplynode] (d5) {2};

        node at (11.5,0.0)   [supplynode] (d7) {5};



        path[->] (n1) edge node {0} (n3);

        path[->] (n2) edge node {3} (n1);

        path[->] (n2) edge node {2} (n5);

        path[->] (n3) edge node {0} (n2);

        path[->] (n3) edge node {1} (n6);

        path[->] (n4) edge node {1} (n1);

        path[->] (n5) edge node {2} (n4);

        path[->] (n6) edge node {1} (n8);

        path[->] (n7) edge node {1} (n6);

        path[->] (n7) edge node {4} (n4);

        path[->] (n8) edge node {3} (n5);

        path[->] (n8) edge node {0} (n7);



        draw[-Implies,line width=1pt,double distance=2pt] (n1) -- (s1);

        draw[-Implies,line width=1pt,double distance=2pt] (n2) -- (s2);

        draw[-Implies,line width=1pt,double distance=2pt] (d3) -- (n3);

        draw[-Implies,line width=1pt,double distance=2pt] (n4) -- (s4);

        draw[-Implies,line width=1pt,double distance=2pt] (d5) -- (n5);

        draw[-Implies,line width=1pt,double distance=2pt] (d7) -- (n7);

end{tikzpicture}

end{document}

produces this, which is sufficient for my needs. Thanks @Zarko for the tip.
enter image description here

answered 3 hours ago

user1757226

514

New contributor

answered 3 hours ago

user1757226

514

New contributor

answered 3 hours ago

user1757226

514

answered 3 hours ago

user1757226

514

New contributor

user1757226 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment |

let me convert my comments to the answer ... with some off-topic sugestion :-) :

documentclass[tikz, margin=3mm]{standalone}

usetikzlibrary{arrows.meta, 

                quotes}



begin{document}

    begin{tikzpicture}[auto=left,

every edge/.style = {draw, semithick, -Stealth, shorten > = 1pt},

                        ]

    begin{scope}[every node/.style={circle, draw=black!50, thick}]

node at ( 0.0,0)   (n1) {1};

node at ( 2.5,2.5) (n2) {2};

node at ( 0.0,5.0) (n3) {3};

node at ( 5.0,0.0) (n4) {4};

node at ( 5.0,4.0) (n5) {5};

node at (10.0,5.0) (n6) {6};

node at (10.0,0.0) (n7) {7};

node at ( 7.5,2.5) (n8) {8};

    end{scope}

    begin{scope}[every node/.style={circle}]

node at (-1.0,-1.0) (s1) {2};

node at ( 2.5, 4.0) (s2) {1};

node at (-1.0, 6.0) (d3) {2};

node at ( 5.0,-1.5) (s4) {6};

node at ( 6.5, 4.0) (d5) {2};

node at (11.5, 0.0) (d7) {5};

    end{scope}

path   (n1) edge ["0"] (n3)

        (n2) edge ["3"] (n1)

        (n2) edge ["2"] (n5)

        (n3) edge ["0"] (n2)

        (n3) edge ["1"] (n6)

        (n4) edge ["1"] (n1)

        (n5) edge ["2"] (n4)

        (n6) edge ["1"] (n8)

        (n7) edge ["1"] (n6)

        (n7) edge ["4"] (n4)

        (n8) edge ["3"] (n5)

        (n8) edge ["0"] (n7);

    begin{scope}[every edge/.style = {draw, -Implies, semithick, double distance=1pt}]

path   (n1) edge (s1)

        (n2) edge (s2)

        (d3) edge (n3)

        (n4) edge (s4)

        (d5) edge (n5)

        (d7) edge (n7);

    end{scope}

end{tikzpicture}

end{document}

above mwe gives:

enter image description here

edited 6 mins ago

answered 2 hours ago

Zarko

131k870170

Thanks, Zarko. Your solution is a much more elegant use of Tikz. My solution is definitely brute-force copy/paste to get the job done.

– user1757226
2 hours ago

@user1757226, to be precise: your answer with my suggestion :-), and my answer with my suggestion + off-topic improvements ;-)

– Zarko
1 hour ago

add a comment |

let me convert my comments to the answer ... with some off-topic sugestion :-) :

documentclass[tikz, margin=3mm]{standalone}

usetikzlibrary{arrows.meta, 

                quotes}



begin{document}

    begin{tikzpicture}[auto=left,

every edge/.style = {draw, semithick, -Stealth, shorten > = 1pt},

                        ]

    begin{scope}[every node/.style={circle, draw=black!50, thick}]

node at ( 0.0,0)   (n1) {1};

node at ( 2.5,2.5) (n2) {2};

node at ( 0.0,5.0) (n3) {3};

node at ( 5.0,0.0) (n4) {4};

node at ( 5.0,4.0) (n5) {5};

node at (10.0,5.0) (n6) {6};

node at (10.0,0.0) (n7) {7};

node at ( 7.5,2.5) (n8) {8};

    end{scope}

    begin{scope}[every node/.style={circle}]

node at (-1.0,-1.0) (s1) {2};

node at ( 2.5, 4.0) (s2) {1};

node at (-1.0, 6.0) (d3) {2};

node at ( 5.0,-1.5) (s4) {6};

node at ( 6.5, 4.0) (d5) {2};

node at (11.5, 0.0) (d7) {5};

    end{scope}

path   (n1) edge ["0"] (n3)

        (n2) edge ["3"] (n1)

        (n2) edge ["2"] (n5)

        (n3) edge ["0"] (n2)

        (n3) edge ["1"] (n6)

        (n4) edge ["1"] (n1)

        (n5) edge ["2"] (n4)

        (n6) edge ["1"] (n8)

        (n7) edge ["1"] (n6)

        (n7) edge ["4"] (n4)

        (n8) edge ["3"] (n5)

        (n8) edge ["0"] (n7);

    begin{scope}[every edge/.style = {draw, -Implies, semithick, double distance=1pt}]

path   (n1) edge (s1)

        (n2) edge (s2)

        (d3) edge (n3)

        (n4) edge (s4)

        (d5) edge (n5)

        (d7) edge (n7);

    end{scope}

end{tikzpicture}

end{document}

above mwe gives:

enter image description here

edited 6 mins ago

answered 2 hours ago

Zarko

131k870170

Thanks, Zarko. Your solution is a much more elegant use of Tikz. My solution is definitely brute-force copy/paste to get the job done.

– user1757226
2 hours ago

@user1757226, to be precise: your answer with my suggestion :-), and my answer with my suggestion + off-topic improvements ;-)

– Zarko
1 hour ago

add a comment |

let me convert my comments to the answer ... with some off-topic sugestion :-) :

documentclass[tikz, margin=3mm]{standalone}

usetikzlibrary{arrows.meta, 

                quotes}



begin{document}

    begin{tikzpicture}[auto=left,

every edge/.style = {draw, semithick, -Stealth, shorten > = 1pt},

                        ]

    begin{scope}[every node/.style={circle, draw=black!50, thick}]

node at ( 0.0,0)   (n1) {1};

node at ( 2.5,2.5) (n2) {2};

node at ( 0.0,5.0) (n3) {3};

node at ( 5.0,0.0) (n4) {4};

node at ( 5.0,4.0) (n5) {5};

node at (10.0,5.0) (n6) {6};

node at (10.0,0.0) (n7) {7};

node at ( 7.5,2.5) (n8) {8};

    end{scope}

    begin{scope}[every node/.style={circle}]

node at (-1.0,-1.0) (s1) {2};

node at ( 2.5, 4.0) (s2) {1};

node at (-1.0, 6.0) (d3) {2};

node at ( 5.0,-1.5) (s4) {6};

node at ( 6.5, 4.0) (d5) {2};

node at (11.5, 0.0) (d7) {5};

    end{scope}

path   (n1) edge ["0"] (n3)

        (n2) edge ["3"] (n1)

        (n2) edge ["2"] (n5)

        (n3) edge ["0"] (n2)

        (n3) edge ["1"] (n6)

        (n4) edge ["1"] (n1)

        (n5) edge ["2"] (n4)

        (n6) edge ["1"] (n8)

        (n7) edge ["1"] (n6)

        (n7) edge ["4"] (n4)

        (n8) edge ["3"] (n5)

        (n8) edge ["0"] (n7);

    begin{scope}[every edge/.style = {draw, -Implies, semithick, double distance=1pt}]

path   (n1) edge (s1)

        (n2) edge (s2)

        (d3) edge (n3)

        (n4) edge (s4)

        (d5) edge (n5)

        (d7) edge (n7);

    end{scope}

end{tikzpicture}

end{document}

above mwe gives:

enter image description here

edited 6 mins ago

answered 2 hours ago

Zarko

131k870170

let me convert my comments to the answer ... with some off-topic sugestion :-) :

documentclass[tikz, margin=3mm]{standalone}

usetikzlibrary{arrows.meta, 

                quotes}



begin{document}

    begin{tikzpicture}[auto=left,

every edge/.style = {draw, semithick, -Stealth, shorten > = 1pt},

                        ]

    begin{scope}[every node/.style={circle, draw=black!50, thick}]

node at ( 0.0,0)   (n1) {1};

node at ( 2.5,2.5) (n2) {2};

node at ( 0.0,5.0) (n3) {3};

node at ( 5.0,0.0) (n4) {4};

node at ( 5.0,4.0) (n5) {5};

node at (10.0,5.0) (n6) {6};

node at (10.0,0.0) (n7) {7};

node at ( 7.5,2.5) (n8) {8};

    end{scope}

    begin{scope}[every node/.style={circle}]

node at (-1.0,-1.0) (s1) {2};

node at ( 2.5, 4.0) (s2) {1};

node at (-1.0, 6.0) (d3) {2};

node at ( 5.0,-1.5) (s4) {6};

node at ( 6.5, 4.0) (d5) {2};

node at (11.5, 0.0) (d7) {5};

    end{scope}

path   (n1) edge ["0"] (n3)

        (n2) edge ["3"] (n1)

        (n2) edge ["2"] (n5)

        (n3) edge ["0"] (n2)

        (n3) edge ["1"] (n6)

        (n4) edge ["1"] (n1)

        (n5) edge ["2"] (n4)

        (n6) edge ["1"] (n8)

        (n7) edge ["1"] (n6)

        (n7) edge ["4"] (n4)

        (n8) edge ["3"] (n5)

        (n8) edge ["0"] (n7);

    begin{scope}[every edge/.style = {draw, -Implies, semithick, double distance=1pt}]

path   (n1) edge (s1)

        (n2) edge (s2)

        (d3) edge (n3)

        (n4) edge (s4)

        (d5) edge (n5)

        (d7) edge (n7);

    end{scope}

end{tikzpicture}

end{document}

above mwe gives:

enter image description here

edited 6 mins ago

answered 2 hours ago

Zarko

131k870170

edited 6 mins ago

answered 2 hours ago

Zarko

131k870170

answered 2 hours ago

Zarko

131k870170

answered 2 hours ago

Zarko

131k870170

Thanks, Zarko. Your solution is a much more elegant use of Tikz. My solution is definitely brute-force copy/paste to get the job done.

– user1757226
2 hours ago

@user1757226, to be precise: your answer with my suggestion :-), and my answer with my suggestion + off-topic improvements ;-)

– Zarko
1 hour ago

add a comment |

Thanks, Zarko. Your solution is a much more elegant use of Tikz. My solution is definitely brute-force copy/paste to get the job done.

– user1757226
2 hours ago

@user1757226, to be precise: your answer with my suggestion :-), and my answer with my suggestion + off-topic improvements ;-)

– Zarko
1 hour ago

Thanks, Zarko. Your solution is a much more elegant use of Tikz. My solution is definitely brute-force copy/paste to get the job done.

– user1757226
2 hours ago

@user1757226, to be precise: your answer with my suggestion :-), and my answer with my suggestion + off-topic improvements ;-)

– Zarko
1 hour ago

add a comment |

user1757226 is a new contributor. Be nice, and check out our Code of Conduct.

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