# Tagged Questions

{coordinates} is about using coordinates in {diagrams}.

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### TikZ: difference between \node and \coordinate?

What is the difference between \node and \coordinate in TikZ? Exchanging them does no visual effect in my (to be honest: still simple) pictures. When to use what?
11k views

### Problems with TikZ calculations

When can I use functions and do calculations in TikZ? How do I make this work: \draw (0,0) arc(0:90:sqrt(15)); %not ok why is this working: \draw (0,0) arc(0:asin(1):5); %ok with \usetikzlibrary{...
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### How can I compute the distance between two coordinates in TikZ?

Given two points (defined, for instance using nodes), I want to compute the distance between them. Is there some build in functionality in tikz to do this? If not, how can it be done using the ...
2k views

### Accessing the logic values of a TikZ coordinate

In TikZ accessing the coordinate values of a node can be done using the let syntax of the calc library or using the PGF command \pgfpointanchor. However, this values are dimensions/lengths in points ...
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### Transform defined coordinates in TikZ

Say I have a triangle with vertices defined using \coordinate (a) at (0,0); \coordinate (b) at (1,0); \coordinate (c) at (0,1); Let us denote by T(x,y) the triangle defined by (a),(b) and (c) which ...
3k views

### Draw in cylindrical and spherical coordinates

I can try to draw this in TikZ: I managed to draw the coordinate axis. The first image is in cylindrical coordinates and the second in spherical coordinates. I don't know draw in spherical ...
3k views

### Coordinates A, B: compute |B-A| and angle between +x and (B-A)

This question has two parts: why is the angle computed always 0 (should be 45) what is a straightforward way to compute distance between coordinates (there is How can I compute the distance between ...
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### How to make a textbox with this TikZ code ?

I made this with TikZ : \usetikzlibrary{calc} \def\banlen{3} \xdefinecolor{mycolor}{RGB}{62,96,111} % Neutral Blue \def\bancolor{mycolor} \begin{tikzpicture} \draw (0.25,0.25) rectangle (5,-2); % \...
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### 3d sphere style changes coordinates?

i took this one http://www.texample.net/tikz/examples/map-projections and rebuild or changed it for my use. This is a crosspost to: http://latex-community.org/forum/viewtopic.php?f=45&t=25078&...
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### Problem with external graphics and 3D pgfplots

I want to include an external graphics with pgfplots. I tried to follow the instructions of the manual (p45 et seq.) as carefully as possible. But the result is hoorible as hell. Here is the code I ...
8k views

### Transforming coordinates, so (0,0) from tikzpicture is put in the desired place of the page

In tikz I can perform absolute positioning, e.g. (current page.center), but how I can specify/transform the coordinates, so (0,0) within tikzpicture will end in well-defined place like center of the ...
4k views

### extract x value from coordinate in TikZ

maybe I'm stupid, I looked at the many examples in which somehow shows the work with the coordinates, but I don't understand it. Simple example - I have: \begin{tikzpicture} \coordinate [...
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### How to draw and annotate a spherical coordinate system

For some lecture script I am preparing I would need some descriptive images showing how to work with spherical coordinates as often seen in textbooks, i.e. a globe and some descriptive arrows ...
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### Curve synthesis - Adding two curves to get another one

Case 1: Let's say I have a few coordinates (A), (B), (C), (W), (X), (Y), and (Z) (possibily obtained through intersection, rotation, and whatnots). I draw two piecewise linear curves through (A), (B)...
721 views

### Is there a better way to do intersections and calculations with relative coordinates in TikZ?

I've been doing many TikZ diagrams lately and every so often I encounter a situation where I am forced to use some temporary coordinate in a \path. In the following short example, the problem is ...
210 views

### Create a coordinate node at each point of a path

How can I create a TikZ/pgf-style that will put a coordinate, which should be named automatically, at each point of a path? So the following code \draw[put coordinates](0,0)--(3,2)--(4,7)--(-2,1); ...
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### pgfplots - Placing Nodes on x Coordinates of a Plot

I want to plot some graphs in pgfplots and want to place nodes on the exact same x coordinate of the plot. The position of the note has to be set in x direction but free in y direction. Here is one ...
571 views

### Tikz - How to determine the coordinates in fill

How to create Candle Symbol in LaTeX I previously asked a question about making candle light and got amazing answers. To todd's answer I have another question which would help understand basics of ...
729 views

### Generalised: Accessing the logic values of a TikZ coordinate

In another question concerning Access to logic coordinates on Accessing the logic values of a TikZ coordinate I used these functions, until I came to a scaled tikzpicture and then it was off. I now ...
871 views

### Transforming “rel axis cs” to absolute coordinates?

I've got two plots arranged vertically using \matrix. I'd like to draw a vertical line, that spans over both plots with a margin of 1cm at the top and at the bottom. The starting point of the line ...
467 views

### How to locally specify function range in math expression

I'm creating simple coordinate transformation in order to define \tdplotsetcoord coordinates at Cartesian coord. system. MWE: \documentclass[a4paper,fleqn,leqno]{article} \usetikzlibrary{arrows.meta,...
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### How can I express half the distance between two nodes?

I want to draw a line from node A half-way to node B in TiKZ. How can I find express the end point?
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### Using TikZ absolute coordinates

I wonder is that possible to use absolute coordinates regarding all document? Please see my example \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \filldraw[red] (...
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### Setting coordinate system for TiKZ picture

I'd like to use TiKZ to generate stand-alone PDF diagrams programatically. I have an application that generates simple geometry of lines and arcs etc and I'd like to create (using e.g. Ruby) TikZ ...
733 views

### Referring to tikzpicture center

How I can refer to the current or some other tikzpicture's center? Is there anything like (current picture.center) or (previous picture.center)? I'm asking about straight solutions, not requiring to ...
84 views

### Express boxes properties in tikz coordinates

In my understanding, any LaTeX box displays such fundamental properties: .. and anything is wrapped into a LaTeX box. So, when I produce a tikz picture, it must be somehow wrapped into a box. ...
496 views

### How to create a macro with two or three ;-separated arguments?

I want to create in 2D a point with \defpoint(1;2){A} and in 3D with \defpoint(1;2;-5){A}. I prefer a solution with TeX but it would be interesting to see if LaTeX3 is useful in this situation. I ...
658 views

### How can I do an affine coordinate transformation in pgfplots?

It is possible to perform a general affine coordinate transformation in TikZ by combining the shift, x, and y keys (or just the generalized cm key to set the coordinate matrix and shift). This allows ...
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### automatic tikz coordinate calculations

Right now I have these defined: \coordinate (Z1) at (0.9,0.5); \coordinate (Z2) at (0.816,-0.112); \coordinate (Z3) at (0.46848,-0.46336); But I would really like to automate this to be: so that ...
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### Circuitikz - IC circuit with relative coordinates

I've represented an IC circuit using circuitikz, but it's a bit too rough to what I prefer. In particular I would like to use relative coordinates in this case and connect them to the IC device'' so ...
123 views

### Relative coordinates after cycle with transform

When I was trying to understand this question I discovered a strange behavior when we use relative coordinates just after cycle in a transformed path. Here is an example (the black path) : \...
1k views

### Box plots with symbolic x coords

I'd like to use box plots with pgfplots. As an additional feature, I'd want my x coordinates to be symbolic. Currently, only the last line from the file data/gp.dat is plotted. It works fine, if I use ...
668 views

### Using a macro for the coordinate in \coordinate

It seems that the two lines in the following code are not equivalent: \documentclass{article} \usepackage{tikz} \def\coord{(0,0)} \begin{document} % \tikz \coordinate at \coord; \tikz \node[...
149 views

### Drawing on an image with TikZ using own coordinate system

I do a lot of mapping, and regularly draw on images using the scheme outlined earlier (Drawing on an image with TikZ) on a 0-1/0-1 grid. I need to produce multiple scalings of the same mappings and it ...
396 views

### How to extract coordinates in the current scope (before the coordinate transformation matrix is applied)

If I extract coordinates with \pgfgetlastxy{}{}, I get changing results depending on the transformations I've applied to my draw (rotation, scale): \documentclass[margin=0.5cm]{standalone} \...
314 views

### Pass a 3d coordinate via pgfkeys

I'm using 3dplot to draw in 3D. Now I want to define my own environment, called pose, that is supposed to be used inside a tikzpicture-environment. It should perform a coordinate system tansformation ...
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### How to fix the position of (0, 0) to (current page.south west) for every tikz picture?

I need to draw severals tikz picture of varying size. Each picture is on a separate page. The coordinate system should be fixed, though. Whenever I do \node at (0, 0) {hello}; 'hello' should be on ...
949 views

### Tikz coordinates relative to a node, and outside it

Given a rectangular node X I have access to the coordinates (X.north), (X.east) and the like. However, I want to be able to draw two sides of a right-angled triangle on top of the node. For example, ...
503 views

### Expressing a y-only shift with axis direction cs with symbolic x coords

I have a vertical bar chart with error bars. I want to put a star just above or below the error bar where the results are significant. I achieved this using the very neat trick provided in this ...
136 views

### Using a macro inside a Tikz coordinate calculation

I am trying to create a general macro that prints a particular custom character, based on an answer to a previous question of mine. Here is a minimal (non-)working example: %!TEX encoding = UTF-8 ...
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### Joining different TikZ pictures

I want to draw a line from one part of the text (on the page) to another part. I'm storing (relative) coordinates, and this is the reason why my MWE doesn't work. Is there any way, using TikZ, of ...
144 views

### Match coordinate in two different scopes

I've many small pictures, each centered at (0,0) in their own figure but i need to combine them and in the combined picture the (0,0) of the 1st picture (in a scope) should be (4,2) of the 2nd picture ...
135 views

### Exact Tikz coordinate at geometry layout

I place several images on one page using Tikz. I use geometry layout. I would like to find out exact coordinate of the left top corner of the layout page (not the real page). I have found out ...
444 views

### Apply shift to (current axis.left of origin)

I was trying to improve the solution at Drawing lines in a plot and give them a label? by using Jake's answer at How to access \xmin, \xmax, \ymin, \ymax from within PGFplots axis environment. So, ...