Ttyjukl

Is there a way to save my career from absolute disaster?

Why don't programming languages automatically manage the synchronous/asynchronous problem?

Are police here, aren't itthey?

Can MTA send mail via a relay without being told so?

Method for adding error messages to a dictionary given a key

Why, when going from special to general relativity, do we just replace partial derivatives with covariant derivatives?

Is a distribution that is normal, but highly skewed considered Gaussian?

Help understanding this unsettling image of Titan, Epimetheus, and Saturn's rings?

Bartok - Syncopation (1): Meaning of notes in between Grand Staff

Is the D&D universe the same as the Forgotten Realms universe?

Flying from Cape Town to England and return to another province

Is it convenient to ask the journal's editor for two additional days to complete a review?

Why didn't Khan get resurrected in the Genesis Explosion?

Is there always a complete, orthogonal set of unitary matrices?

How to check if all elements of 1 list are in the *same quantity* and in any order, in the list2?

Writing differences on a blackboard

Is wanting to ask what to write an indication that you need to change your story?

I want to delete every two lines after 3rd lines in file contain very large number of lines :

Can a Bladesinger Wizard use Bladesong with a Hand Crossbow?

The past simple of "gaslight" – "gaslighted" or "gaslit"?

Why isn't acceleration always zero whenever velocity is zero, such as the moment a ball bounces off a wall?

TikZ: How to reverse arrow direction without switching start/end point?

Is it ever safe to open a suspicious HTML file (e.g. email attachment)?

Easy to read palindrome checker

TikZ: How to reverse arrow direction without switching start/end point?

2

Assumed we have this MWE from user Caramdir:

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows,calc,decorations.markings,decorations.pathmorphing,arrows.meta}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -Latex]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

---

---

I want to reverse the arrow head position, so that the arrow tip is located at the inner end of the spiral and directs to the center.

How to do so?

tikz-pgf arrows tikz-arrows tikz-node

share|improve this question

edited 3 hours ago

Dave

asked 3 hours ago

DaveDave

964619

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  instead -Latex use Latex-? however, the result be ugly ....
  
  – Zarko
  3 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You just place the arrow in the other end in the options: Latex- -and then you will need to have a look at: tex.stackexchange.com/questions/176779/…
  
  – hpekristiansen
  3 hours ago
  

  
  
  
  

add a comment | 

2

Assumed we have this MWE from user Caramdir:

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows,calc,decorations.markings,decorations.pathmorphing,arrows.meta}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -Latex]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

---

---

I want to reverse the arrow head position, so that the arrow tip is located at the inner end of the spiral and directs to the center.

How to do so?

tikz-pgf arrows tikz-arrows tikz-node

share|improve this question

edited 3 hours ago

Dave

asked 3 hours ago

DaveDave

964619

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  instead -Latex use Latex-? however, the result be ugly ....
  
  – Zarko
  3 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You just place the arrow in the other end in the options: Latex- -and then you will need to have a look at: tex.stackexchange.com/questions/176779/…
  
  – hpekristiansen
  3 hours ago
  

  
  
  
  

add a comment | 

Assumed we have this MWE from user Caramdir:

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows,calc,decorations.markings,decorations.pathmorphing,arrows.meta}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -Latex]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

---

---

I want to reverse the arrow head position, so that the arrow tip is located at the inner end of the spiral and directs to the center.

How to do so?

tikz-pgf arrows tikz-arrows tikz-node

share|improve this question

edited 3 hours ago

Dave

asked 3 hours ago

DaveDave

964619

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows,calc,decorations.markings,decorations.pathmorphing,arrows.meta}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -Latex]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

share|improve this question

edited 3 hours ago

Dave

asked 3 hours ago

DaveDave

964619

share|improve this question

edited 3 hours ago

Dave

asked 3 hours ago

DaveDave

964619

asked 3 hours ago

DaveDave

964619

asked 3 hours ago

DaveDave

964619

2 Answers
2

active

oldest

votes

2

To have arrow's head on opposition side of the spiral curve, you only need to change -Latex to Latex-. However result is quite unexpected (read unusable) ...

It might be more acceptable solution to move the arrow head close to the end of the spiral. For this you can exploit the package decorations.markings:

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

usetikzlibrary{arrows.meta, bending, decorations.markings}



begin{document}

    begin{tikzpicture}[

decoration = {markings,mark=at position .84 with

             {arrowreversed[black]{Latex[length=1.5mm]}}}

                        ]

draw[postaction={decorate}]

    plot[domain=0:25,variable=t,smooth,samples=101,

           {Latex[length=1mm]}-]

        ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

share|improve this answer

answered 2 hours ago

ZarkoZarko

128k868168

add a comment | 

0

First of all, I would like to argue that bent arrows look better, also in the original plot. But since the curve becomes singular at 0, this does not immediately work because of dimension too large errors. However, it does once we approximate the inner-most stretch by an arc.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}[scale=2]

    pgfmathsetmacro{myt}{pi}   

    draw[{Latex[bend,length=2pt]}-] 

    (0: {0.002*myt*myt})

    arc({0}:{180}:{0.002*myt*myt});

    draw  plot[domain=pi:25.1327,variable=t,samples=75,smooth]

         ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

And here is the original pic with a bent arrow.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -{Latex[bend]}]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

Note that one should always load bending when one attaches arrows to curved paths, regardless of whether or not one bends the arrows, since otherwise the paths get distorted. Bending cures the distortion even when not explicitly used.

share|improve this answer

answered 1 hour ago

marmotmarmot

113k5145274

add a comment | 

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

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f482341%2ftikz-how-to-reverse-arrow-direction-without-switching-start-end-point%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

2

To have arrow's head on opposition side of the spiral curve, you only need to change -Latex to Latex-. However result is quite unexpected (read unusable) ...

It might be more acceptable solution to move the arrow head close to the end of the spiral. For this you can exploit the package decorations.markings:

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

usetikzlibrary{arrows.meta, bending, decorations.markings}



begin{document}

    begin{tikzpicture}[

decoration = {markings,mark=at position .84 with

             {arrowreversed[black]{Latex[length=1.5mm]}}}

                        ]

draw[postaction={decorate}]

    plot[domain=0:25,variable=t,smooth,samples=101,

           {Latex[length=1mm]}-]

        ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

share|improve this answer

answered 2 hours ago

ZarkoZarko

128k868168

add a comment | 

2

To have arrow's head on opposition side of the spiral curve, you only need to change -Latex to Latex-. However result is quite unexpected (read unusable) ...

It might be more acceptable solution to move the arrow head close to the end of the spiral. For this you can exploit the package decorations.markings:

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

usetikzlibrary{arrows.meta, bending, decorations.markings}



begin{document}

    begin{tikzpicture}[

decoration = {markings,mark=at position .84 with

             {arrowreversed[black]{Latex[length=1.5mm]}}}

                        ]

draw[postaction={decorate}]

    plot[domain=0:25,variable=t,smooth,samples=101,

           {Latex[length=1mm]}-]

        ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

share|improve this answer

answered 2 hours ago

ZarkoZarko

128k868168

add a comment | 

To have arrow's head on opposition side of the spiral curve, you only need to change -Latex to Latex-. However result is quite unexpected (read unusable) ...

It might be more acceptable solution to move the arrow head close to the end of the spiral. For this you can exploit the package decorations.markings:

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

usetikzlibrary{arrows.meta, bending, decorations.markings}



begin{document}

    begin{tikzpicture}[

decoration = {markings,mark=at position .84 with

             {arrowreversed[black]{Latex[length=1.5mm]}}}

                        ]

draw[postaction={decorate}]

    plot[domain=0:25,variable=t,smooth,samples=101,

           {Latex[length=1mm]}-]

        ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

share|improve this answer

answered 2 hours ago

ZarkoZarko

128k868168

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

usetikzlibrary{arrows.meta, bending, decorations.markings}



begin{document}

    begin{tikzpicture}[

decoration = {markings,mark=at position .84 with

             {arrowreversed[black]{Latex[length=1.5mm]}}}

                        ]

draw[postaction={decorate}]

    plot[domain=0:25,variable=t,smooth,samples=101,

           {Latex[length=1mm]}-]

        ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

share|improve this answer

answered 2 hours ago

ZarkoZarko

128k868168

answered 2 hours ago

ZarkoZarko

128k868168

answered 2 hours ago

ZarkoZarko

128k868168

0

First of all, I would like to argue that bent arrows look better, also in the original plot. But since the curve becomes singular at 0, this does not immediately work because of dimension too large errors. However, it does once we approximate the inner-most stretch by an arc.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}[scale=2]

    pgfmathsetmacro{myt}{pi}   

    draw[{Latex[bend,length=2pt]}-] 

    (0: {0.002*myt*myt})

    arc({0}:{180}:{0.002*myt*myt});

    draw  plot[domain=pi:25.1327,variable=t,samples=75,smooth]

         ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

And here is the original pic with a bent arrow.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -{Latex[bend]}]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

Note that one should always load bending when one attaches arrows to curved paths, regardless of whether or not one bends the arrows, since otherwise the paths get distorted. Bending cures the distortion even when not explicitly used.

share|improve this answer

answered 1 hour ago

marmotmarmot

113k5145274

add a comment | 

0

First of all, I would like to argue that bent arrows look better, also in the original plot. But since the curve becomes singular at 0, this does not immediately work because of dimension too large errors. However, it does once we approximate the inner-most stretch by an arc.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}[scale=2]

    pgfmathsetmacro{myt}{pi}   

    draw[{Latex[bend,length=2pt]}-] 

    (0: {0.002*myt*myt})

    arc({0}:{180}:{0.002*myt*myt});

    draw  plot[domain=pi:25.1327,variable=t,samples=75,smooth]

         ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

And here is the original pic with a bent arrow.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -{Latex[bend]}]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

Note that one should always load bending when one attaches arrows to curved paths, regardless of whether or not one bends the arrows, since otherwise the paths get distorted. Bending cures the distortion even when not explicitly used.

share|improve this answer

answered 1 hour ago

marmotmarmot

113k5145274

add a comment | 

First of all, I would like to argue that bent arrows look better, also in the original plot. But since the curve becomes singular at 0, this does not immediately work because of dimension too large errors. However, it does once we approximate the inner-most stretch by an arc.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}[scale=2]

    pgfmathsetmacro{myt}{pi}   

    draw[{Latex[bend,length=2pt]}-] 

    (0: {0.002*myt*myt})

    arc({0}:{180}:{0.002*myt*myt});

    draw  plot[domain=pi:25.1327,variable=t,samples=75,smooth]

         ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

And here is the original pic with a bent arrow.

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -{Latex[bend]}]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

Note that one should always load bending when one attaches arrows to curved paths, regardless of whether or not one bends the arrows, since otherwise the paths get distorted. Bending cures the distortion even when not explicitly used.

share|improve this answer

answered 1 hour ago

marmotmarmot

113k5145274

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}[scale=2]

    pgfmathsetmacro{myt}{pi}   

    draw[{Latex[bend,length=2pt]}-] 

    (0: {0.002*myt*myt})

    arc({0}:{180}:{0.002*myt*myt});

    draw  plot[domain=pi:25.1327,variable=t,samples=75,smooth]

         ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

documentclass{article}

usepackage{tikz}

usetikzlibrary{arrows.meta,bending}



begin{document}

begin{tikzpicture}

    draw [domain=0:25.1327,variable=t,smooth,samples=75, -{Latex[bend]}]

        plot ({t r}: {0.002*t*t});

end{tikzpicture}

end{document}

share|improve this answer

answered 1 hour ago

marmotmarmot

113k5145274

answered 1 hour ago

marmotmarmot

113k5145274

answered 1 hour ago

marmotmarmot

113k5145274