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 ``--``

My large rocket is still flipping over

Where do 5 or more U.S. counties meet in a single point?

Why did Dr. Strange keep looking into the future after the snap?

Drug Testing and Prescribed Medications

Which "exotic salt" can lower water's freezing point by 70 °C?

cd ` command meaning and how to exit it?

Convert Numbers To Emoji Math

How is it believable that Euron could so easily pull off this ambush?

Can anyone identify this unknown 1988 PC card from The Palantir Corporation?

Concatenate all values of the same XML element using XPath/XQuery

Extracting the parent, leaf, and extension from a valid path

How to get the decimal part of a number in apex

In a series of books, what happens after the coming of age?

What's weird about Proto-Indo-European Stops?

Bash prompt takes only the first word of a hostname before the dot

Why did Gendry call himself Gendry Rivers?

What calendar would the Saturn nation use?

Crime rates in a post-scarcity economy

My C Drive is full without reason

Select list elements based on other list

Can I use LPGL3 for library and Apache 2 for "main()"?

How could a humanoid creature completely form within the span of 24 hours?

Why can’t you see at the start of the Big Bang?

While drilling into kitchen wall, hit a wire - any advice?



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 ``--``













3















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

usepackagepgf, tikz
usetikzlibraryarrows, automata, positioning

begindocument
begintikzpicture
[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);



endtikzpicture
enddocument



what the above code produces:
enter image description here










share|improve this question



















  • 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
    Apr 28 at 13:06











  • with Implies[] from arrows.meta library?

    – Zarko
    Apr 28 at 13:19











  • Thanks @Dave, what is MWE?

    – user1757226
    Apr 28 at 13:34











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

    – LarrySnyder610
    Apr 28 at 13:36











  • 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 enddocument on the end.

    – Zarko
    Apr 28 at 13:45















3















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

usepackagepgf, tikz
usetikzlibraryarrows, automata, positioning

begindocument
begintikzpicture
[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);



endtikzpicture
enddocument



what the above code produces:
enter image description here










share|improve this question



















  • 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
    Apr 28 at 13:06











  • with Implies[] from arrows.meta library?

    – Zarko
    Apr 28 at 13:19











  • Thanks @Dave, what is MWE?

    – user1757226
    Apr 28 at 13:34











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

    – LarrySnyder610
    Apr 28 at 13:36











  • 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 enddocument on the end.

    – Zarko
    Apr 28 at 13:45













3












3








3


0






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

usepackagepgf, tikz
usetikzlibraryarrows, automata, positioning

begindocument
begintikzpicture
[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);



endtikzpicture
enddocument



what the above code produces:
enter image description here










share|improve this question
















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

usepackagepgf, tikz
usetikzlibraryarrows, automata, positioning

begindocument
begintikzpicture
[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);



endtikzpicture
enddocument



what the above code produces:
enter image description here







tikz-pgf






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Apr 28 at 14:12







user1757226

















asked Apr 28 at 13:02









user1757226user1757226

564




564







  • 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
    Apr 28 at 13:06











  • with Implies[] from arrows.meta library?

    – Zarko
    Apr 28 at 13:19











  • Thanks @Dave, what is MWE?

    – user1757226
    Apr 28 at 13:34











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

    – LarrySnyder610
    Apr 28 at 13:36











  • 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 enddocument on the end.

    – Zarko
    Apr 28 at 13:45












  • 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
    Apr 28 at 13:06











  • with Implies[] from arrows.meta library?

    – Zarko
    Apr 28 at 13:19











  • Thanks @Dave, what is MWE?

    – user1757226
    Apr 28 at 13:34











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

    – LarrySnyder610
    Apr 28 at 13:36











  • 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 enddocument on the end.

    – Zarko
    Apr 28 at 13:45







2




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
Apr 28 at 13:06





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
Apr 28 at 13:06













with Implies[] from arrows.meta library?

– Zarko
Apr 28 at 13:19





with Implies[] from arrows.meta library?

– Zarko
Apr 28 at 13:19













Thanks @Dave, what is MWE?

– user1757226
Apr 28 at 13:34





Thanks @Dave, what is MWE?

– user1757226
Apr 28 at 13:34













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

– LarrySnyder610
Apr 28 at 13:36





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

– LarrySnyder610
Apr 28 at 13:36













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 enddocument on the end.

– Zarko
Apr 28 at 13:45





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 enddocument on the end.

– Zarko
Apr 28 at 13:45










3 Answers
3






active

oldest

votes


















4














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

usepackagepgf, tikz
usetikzlibraryarrows, automata, positioning, arrows.meta

begindocument
begintikzpicture
[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);
endtikzpicture
enddocument


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






share|improve this answer






























    4














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



    documentclass[tikz, margin=3mm]standalone
    usetikzlibraryarrows.meta,
    quotes

    begindocument
    begintikzpicture[auto=left,
    every edge/.style = draw, semithick, -Stealth, shorten > = 1pt,
    ]
    beginscope[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;
    endscope
    beginscope[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;
    endscope
    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);
    beginscope[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);
    endscope
    endtikzpicture
    enddocument


    above mwe gives:



    enter image description here






    share|improve this answer

























    • 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
      Apr 28 at 15:08











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

      – Zarko
      Apr 28 at 16:10


















    1














    I would use loops to avoid repetition and pins for the double arrows, which can be attached with node also.



    documentclass[tikz,border=3.14mm]standalone
    usetikzlibraryarrows.meta
    begindocument
    begintikzpicture[roundnode/.style=circle,draw=black!50,thick,
    supplynode/.style=circle,
    every pin edge/.append style=line width=1pt,double distance=2pt,draw,
    > = stealth, % arrow head style
    shorten > = 1pt, % don't touch arrow head to node
    semithick % line style
    ]
    foreach [count=X] Coord in
    (0,0),(2.5,2.5),(0.0,5.0),(5.0,0.0),(5.0,4.0),(10.0,5.0),(10.0,0.0),(7.5,2.5)
    node[roundnode] (nX) at Coord X;
    foreach X/Y/Z in 1/below left/2,2/above/1,4/below/6
    node also [pin=[pin distance=8mm,pin edge=-Implies]Y:Z] (nX);
    foreach X/Y/Z in 3/above left/2,5/right/2,7/right/5
    node also [pin=[pin distance=8mm,pin edge=Implies-]Y:Z] (nX);
    foreach X/Y/Z in 1/0/3,2/3/1,2/2/5,3/0/2,3/1/6,4/1/1,5/2/4,6/1/8,7/1/6,7/4/4,8/3/5,8/0/7
    draw[->] (nX) -- (nZ) node[midway,auto]Y;
    endtikzpicture
    enddocument


    enter image description here



    One could reduce it to two loops at the expense of introducing some ifs. With graphdrawing one could avoid the need of introducing explicit coordinates and/or distances altogether but this would require lualatex.






    share|improve this answer























      Your Answer








      StackExchange.ready(function()
      var channelOptions =
      tags: "".split(" "),
      id: "85"
      ;
      initTagRenderer("".split(" "), "".split(" "), channelOptions);

      StackExchange.using("externalEditor", function()
      // Have to fire editor after snippets, if snippets enabled
      if (StackExchange.settings.snippets.snippetsEnabled)
      StackExchange.using("snippets", function()
      createEditor();
      );

      else
      createEditor();

      );

      function createEditor()
      StackExchange.prepareEditor(
      heartbeatType: 'answer',
      autoActivateHeartbeat: false,
      convertImagesToLinks: false,
      noModals: true,
      showLowRepImageUploadWarning: true,
      reputationToPostImages: null,
      bindNavPrevention: true,
      postfix: "",
      imageUploader:
      brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
      contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
      allowUrls: true
      ,
      onDemand: true,
      discardSelector: ".discard-answer"
      ,immediatelyShowMarkdownHelp:true
      );



      );













      draft saved

      draft discarded


















      StackExchange.ready(
      function ()
      StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f488072%2ftikz-how-to-make-supply-and-demand-arrows-for-nodes%23new-answer', 'question_page');

      );

      Post as a guest















      Required, but never shown

























      3 Answers
      3






      active

      oldest

      votes








      3 Answers
      3






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      4














      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

      usepackagepgf, tikz
      usetikzlibraryarrows, automata, positioning, arrows.meta

      begindocument
      begintikzpicture
      [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);
      endtikzpicture
      enddocument


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






      share|improve this answer



























        4














        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

        usepackagepgf, tikz
        usetikzlibraryarrows, automata, positioning, arrows.meta

        begindocument
        begintikzpicture
        [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);
        endtikzpicture
        enddocument


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






        share|improve this answer

























          4












          4








          4







          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

          usepackagepgf, tikz
          usetikzlibraryarrows, automata, positioning, arrows.meta

          begindocument
          begintikzpicture
          [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);
          endtikzpicture
          enddocument


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






          share|improve this answer













          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

          usepackagepgf, tikz
          usetikzlibraryarrows, automata, positioning, arrows.meta

          begindocument
          begintikzpicture
          [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);
          endtikzpicture
          enddocument


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







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Apr 28 at 14:31









          user1757226user1757226

          564




          564





















              4














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



              documentclass[tikz, margin=3mm]standalone
              usetikzlibraryarrows.meta,
              quotes

              begindocument
              begintikzpicture[auto=left,
              every edge/.style = draw, semithick, -Stealth, shorten > = 1pt,
              ]
              beginscope[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;
              endscope
              beginscope[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;
              endscope
              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);
              beginscope[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);
              endscope
              endtikzpicture
              enddocument


              above mwe gives:



              enter image description here






              share|improve this answer

























              • 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
                Apr 28 at 15:08











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

                – Zarko
                Apr 28 at 16:10















              4














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



              documentclass[tikz, margin=3mm]standalone
              usetikzlibraryarrows.meta,
              quotes

              begindocument
              begintikzpicture[auto=left,
              every edge/.style = draw, semithick, -Stealth, shorten > = 1pt,
              ]
              beginscope[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;
              endscope
              beginscope[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;
              endscope
              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);
              beginscope[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);
              endscope
              endtikzpicture
              enddocument


              above mwe gives:



              enter image description here






              share|improve this answer

























              • 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
                Apr 28 at 15:08











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

                – Zarko
                Apr 28 at 16:10













              4












              4








              4







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



              documentclass[tikz, margin=3mm]standalone
              usetikzlibraryarrows.meta,
              quotes

              begindocument
              begintikzpicture[auto=left,
              every edge/.style = draw, semithick, -Stealth, shorten > = 1pt,
              ]
              beginscope[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;
              endscope
              beginscope[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;
              endscope
              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);
              beginscope[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);
              endscope
              endtikzpicture
              enddocument


              above mwe gives:



              enter image description here






              share|improve this answer















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



              documentclass[tikz, margin=3mm]standalone
              usetikzlibraryarrows.meta,
              quotes

              begindocument
              begintikzpicture[auto=left,
              every edge/.style = draw, semithick, -Stealth, shorten > = 1pt,
              ]
              beginscope[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;
              endscope
              beginscope[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;
              endscope
              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);
              beginscope[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);
              endscope
              endtikzpicture
              enddocument


              above mwe gives:



              enter image description here







              share|improve this answer














              share|improve this answer



              share|improve this answer








              edited Apr 28 at 17:48

























              answered Apr 28 at 14:57









              ZarkoZarko

              133k872174




              133k872174












              • 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
                Apr 28 at 15:08











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

                – Zarko
                Apr 28 at 16:10

















              • 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
                Apr 28 at 15:08











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

                – Zarko
                Apr 28 at 16:10
















              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
              Apr 28 at 15:08





              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
              Apr 28 at 15:08













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

              – Zarko
              Apr 28 at 16:10





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

              – Zarko
              Apr 28 at 16:10











              1














              I would use loops to avoid repetition and pins for the double arrows, which can be attached with node also.



              documentclass[tikz,border=3.14mm]standalone
              usetikzlibraryarrows.meta
              begindocument
              begintikzpicture[roundnode/.style=circle,draw=black!50,thick,
              supplynode/.style=circle,
              every pin edge/.append style=line width=1pt,double distance=2pt,draw,
              > = stealth, % arrow head style
              shorten > = 1pt, % don't touch arrow head to node
              semithick % line style
              ]
              foreach [count=X] Coord in
              (0,0),(2.5,2.5),(0.0,5.0),(5.0,0.0),(5.0,4.0),(10.0,5.0),(10.0,0.0),(7.5,2.5)
              node[roundnode] (nX) at Coord X;
              foreach X/Y/Z in 1/below left/2,2/above/1,4/below/6
              node also [pin=[pin distance=8mm,pin edge=-Implies]Y:Z] (nX);
              foreach X/Y/Z in 3/above left/2,5/right/2,7/right/5
              node also [pin=[pin distance=8mm,pin edge=Implies-]Y:Z] (nX);
              foreach X/Y/Z in 1/0/3,2/3/1,2/2/5,3/0/2,3/1/6,4/1/1,5/2/4,6/1/8,7/1/6,7/4/4,8/3/5,8/0/7
              draw[->] (nX) -- (nZ) node[midway,auto]Y;
              endtikzpicture
              enddocument


              enter image description here



              One could reduce it to two loops at the expense of introducing some ifs. With graphdrawing one could avoid the need of introducing explicit coordinates and/or distances altogether but this would require lualatex.






              share|improve this answer



























                1














                I would use loops to avoid repetition and pins for the double arrows, which can be attached with node also.



                documentclass[tikz,border=3.14mm]standalone
                usetikzlibraryarrows.meta
                begindocument
                begintikzpicture[roundnode/.style=circle,draw=black!50,thick,
                supplynode/.style=circle,
                every pin edge/.append style=line width=1pt,double distance=2pt,draw,
                > = stealth, % arrow head style
                shorten > = 1pt, % don't touch arrow head to node
                semithick % line style
                ]
                foreach [count=X] Coord in
                (0,0),(2.5,2.5),(0.0,5.0),(5.0,0.0),(5.0,4.0),(10.0,5.0),(10.0,0.0),(7.5,2.5)
                node[roundnode] (nX) at Coord X;
                foreach X/Y/Z in 1/below left/2,2/above/1,4/below/6
                node also [pin=[pin distance=8mm,pin edge=-Implies]Y:Z] (nX);
                foreach X/Y/Z in 3/above left/2,5/right/2,7/right/5
                node also [pin=[pin distance=8mm,pin edge=Implies-]Y:Z] (nX);
                foreach X/Y/Z in 1/0/3,2/3/1,2/2/5,3/0/2,3/1/6,4/1/1,5/2/4,6/1/8,7/1/6,7/4/4,8/3/5,8/0/7
                draw[->] (nX) -- (nZ) node[midway,auto]Y;
                endtikzpicture
                enddocument


                enter image description here



                One could reduce it to two loops at the expense of introducing some ifs. With graphdrawing one could avoid the need of introducing explicit coordinates and/or distances altogether but this would require lualatex.






                share|improve this answer

























                  1












                  1








                  1







                  I would use loops to avoid repetition and pins for the double arrows, which can be attached with node also.



                  documentclass[tikz,border=3.14mm]standalone
                  usetikzlibraryarrows.meta
                  begindocument
                  begintikzpicture[roundnode/.style=circle,draw=black!50,thick,
                  supplynode/.style=circle,
                  every pin edge/.append style=line width=1pt,double distance=2pt,draw,
                  > = stealth, % arrow head style
                  shorten > = 1pt, % don't touch arrow head to node
                  semithick % line style
                  ]
                  foreach [count=X] Coord in
                  (0,0),(2.5,2.5),(0.0,5.0),(5.0,0.0),(5.0,4.0),(10.0,5.0),(10.0,0.0),(7.5,2.5)
                  node[roundnode] (nX) at Coord X;
                  foreach X/Y/Z in 1/below left/2,2/above/1,4/below/6
                  node also [pin=[pin distance=8mm,pin edge=-Implies]Y:Z] (nX);
                  foreach X/Y/Z in 3/above left/2,5/right/2,7/right/5
                  node also [pin=[pin distance=8mm,pin edge=Implies-]Y:Z] (nX);
                  foreach X/Y/Z in 1/0/3,2/3/1,2/2/5,3/0/2,3/1/6,4/1/1,5/2/4,6/1/8,7/1/6,7/4/4,8/3/5,8/0/7
                  draw[->] (nX) -- (nZ) node[midway,auto]Y;
                  endtikzpicture
                  enddocument


                  enter image description here



                  One could reduce it to two loops at the expense of introducing some ifs. With graphdrawing one could avoid the need of introducing explicit coordinates and/or distances altogether but this would require lualatex.






                  share|improve this answer













                  I would use loops to avoid repetition and pins for the double arrows, which can be attached with node also.



                  documentclass[tikz,border=3.14mm]standalone
                  usetikzlibraryarrows.meta
                  begindocument
                  begintikzpicture[roundnode/.style=circle,draw=black!50,thick,
                  supplynode/.style=circle,
                  every pin edge/.append style=line width=1pt,double distance=2pt,draw,
                  > = stealth, % arrow head style
                  shorten > = 1pt, % don't touch arrow head to node
                  semithick % line style
                  ]
                  foreach [count=X] Coord in
                  (0,0),(2.5,2.5),(0.0,5.0),(5.0,0.0),(5.0,4.0),(10.0,5.0),(10.0,0.0),(7.5,2.5)
                  node[roundnode] (nX) at Coord X;
                  foreach X/Y/Z in 1/below left/2,2/above/1,4/below/6
                  node also [pin=[pin distance=8mm,pin edge=-Implies]Y:Z] (nX);
                  foreach X/Y/Z in 3/above left/2,5/right/2,7/right/5
                  node also [pin=[pin distance=8mm,pin edge=Implies-]Y:Z] (nX);
                  foreach X/Y/Z in 1/0/3,2/3/1,2/2/5,3/0/2,3/1/6,4/1/1,5/2/4,6/1/8,7/1/6,7/4/4,8/3/5,8/0/7
                  draw[->] (nX) -- (nZ) node[midway,auto]Y;
                  endtikzpicture
                  enddocument


                  enter image description here



                  One could reduce it to two loops at the expense of introducing some ifs. With graphdrawing one could avoid the need of introducing explicit coordinates and/or distances altogether but this would require lualatex.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Apr 28 at 20:31









                  marmotmarmot

                  124k6161305




                  124k6161305



























                      draft saved

                      draft discarded
















































                      Thanks for contributing an answer to TeX - LaTeX Stack Exchange!


                      • Please be sure to answer the question. Provide details and share your research!

                      But avoid


                      • Asking for help, clarification, or responding to other answers.

                      • Making statements based on opinion; back them up with references or personal experience.

                      To learn more, see our tips on writing great answers.




                      draft saved


                      draft discarded














                      StackExchange.ready(
                      function ()
                      StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f488072%2ftikz-how-to-make-supply-and-demand-arrows-for-nodes%23new-answer', 'question_page');

                      );

                      Post as a guest















                      Required, but never shown





















































                      Required, but never shown














                      Required, but never shown












                      Required, but never shown







                      Required, but never shown

































                      Required, but never shown














                      Required, but never shown












                      Required, but never shown







                      Required, but never shown







                      Popular posts from this blog

                      How to write a 12-bar blues melodyI-IV-V blues progressionHow to play the bridges in a standard blues progressionHow does Gdim7 fit in C# minor?question on a certain chord progressionMusicology of Melody12 bar blues, spread rhythm: alternative to 6th chord to avoid finger stretchChord progressions/ Root key/ MelodiesHow to put chords (POP-EDM) under a given lead vocal melody (starting from a good knowledge in music theory)Are there “rules” for improvising with the minor pentatonic scale over 12-bar shuffle?Confusion about blues scale and chords

                      What if the end-user didn't have the required library?What is setup.py?What is a clean, pythonic way to have multiple constructors in Python?What does Ruby have that Python doesn't, and vice versa?What is the reason for having '//' in Python?How do I create a namespace package in Python?How to package shared objects that python modules depend on?setuptools vs. distutils: why is distutils still a thing?Navigation in Windows 10 vs code not going to virtualenv library when the same library is installed at user levelPython create package for local usePackaging a project that uses multiple python versionsWhy is permission denied on pip install except for when “--user” is included at end of command?

                      Esgonzo ibérico Índice Descrición Distribución Hábitat Ameazas Notas Véxase tamén "Acerca dos nomes dos anfibios e réptiles galegos""Chalcides bedriagai"Chalcides bedriagai en Carrascal, L. M. Salvador, A. (Eds). Enciclopedia virtual de los vertebrados españoles. Museo Nacional de Ciencias Naturales, Madrid. España.Fotos