# Questions tagged [tikz-calc]

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### Problem with \tikzdeclarecoordinatesystem

I create a new coordinate system with \tikzdeclarecoordinatesystem. Compiles true when scale=1 and false otherwise. Why? Can you help me? Thanks alot. This is my code. \documentclass[tikz, border=2mm]{...
71 views

### Weird Tikz positioning behaviour; calc, \graph, subgraph

I have the following code. It behaves as expected when only one middle node is drawn; however, when both are there the result is surprising. Why is that? How can I fix it? \documentclass[border=2mm]{...
68 views

### TikZ: fill a percentual part of a rectangle node

I have a rectangle node, say 2cm times 3cm. Is there a TikZ-like way to fill a percent value, say p, of that rectangle, similar as shown in the picture (for 34.5%). So the yellow area shall be e.g. ...
59 views

### Recursive function in pgfplots

I'm trying to plot Legendre polynomials, which can be done very easily by calling a recursive function. For instance, in Python this would like like this: def legendre(xi, p): if p==0: ...
153 views

### Draw Arcs On Spherical Caps With Fill

I asked this question: Draw Arcs On Spherical Caps and a user was kind to answer. However, I am trying to improve on design by changing some colors, adding fill, and adding coordinate (x,y,z) axis ...
33 views

### How to calc coordinates of a middle of calculated segment?

\documentclass[12pt]{scrartcl} \usepackage{pgfplots} \usepackage{tikz} \usetikzlibrary{calc} \begin{document} \begin{tikzpicture} \coordinate (a) at (-2,5); \coordinate (b) at (-2,0); \...
55 views

### Using tikz-calc addition of coordinates along with macros

I am trying to use tikz-calc to automatically calculate coordinates in custom macros, using the coordinate addition function ($(x,y) + (a,b)$). Things seem to go awry when I try to add coordinates ...
45 views

### how to draw n horizontal y-axis parallel lines intersect m vertical x-axis parallel lines

use \foreach command add node circle \begin{tikzpicture}[scale=0.5] \draw[->] (-10, 0) -- (10, 0) node[right] {$x$}; \draw[->] (0, -10) -- (0, 10) node[above] {$y$}; { \foreach \n in {8,7,...
394 views

### Calculation summations in Latex

Anyone can help me please? I need to calculate the sum 1+1/2+1/3+...1/n (n given) by using only Latex commands. I have no idea how can I do this. Many thanks.
61 views

### tipfr package: how to write some buttons (request: only pdfLaTeX)

Related of this my previous question here: Search for a package to generate graphic displays of calculators I'm searching to write something as \sin^{-1} for my students similar to this picture taken ...
435 views

### TikZ: Get (dimensionless) distance between node anchors

In the following picture I want node C to be as wide as the distance between (A.north east) and (B.south west) as indicated in the picture; I tried defining a new node D with \n1 as minimum width, and ...
226 views

### Tangent Circles using TikZ

I am trying to use TikZ to draw tangent circles contained in a rectangle, but I have encountered some difficulties. I am also soliciting general feedback on using TikZ better, so I am giving a fair ...
52 views

### Tikz, error in computation of coordinates

I would like to draw 3 vectors starting at (m) and with computed length, but things go wrong. Basically I get an error or a rendering error (according to the differend attempts) in the 1st and 3rd ...
169 views

### Expansion of “\coord” macro in TikZ “let” command

Please consider this code: \documentclass[border=10pt]{standalone} \usepackage{tikz} \usetikzlibrary{calc} \def\coord(#1){coordinate(#1)} \begin{document} \begin{tikzpicture} \node[draw](A) at (...
125 views

### tikz arithmetic with numbers and lengths

Consider this example: \documentclass{article} \usepackage{tikz} \usetikzlibrary{calc} \begin{document} \begin{tikzpicture} \def\starty{3} \def\length{1}; \coordinate(a1) at (1, \starty); \...
109 views

### Can tikz projections be computed in three dimensions?

According to the pgf manual, the syntax <coordinate>!<projection coordinate!<angle>:<second coordinate> can be used to project <projection coordinate> orthogonally onto ...
367 views

### best way to draw planes in 2d?

I would like to replicate the following image and I would like to know how to represent the third state into the page by using the tikz-3dplot package, maybe starting from the answer to a previous ...
52 views

### How to Calculate x-Position in a pgfplots with Information from a Table

Situation and Problem This question is a follow-up and based on marmots answers to this question and this. The general situation is described there. Now I want to simplify input. More specifically I ...
413 views

### Drawing a set with a particular shape

I would like to draw a non-convex set as in the following image and I like to start from my MWE: \documentclass[12pt,a4paper]{book} \usepackage{tikz} \usetikzlibrary{calc, shadings} \usetikzlibrary{...
89 views

### Dynamic bar plot from file

I need to draw a bar chart based on the data from the file. The data looks something like this \begin{filecontents*}{tls.dat} Name Abbreviation percentage Bod-Kin LS1 60 Intraper LS2 40 ...
61 views

### Defining intersections and nodes

I've replicated the figure below through the following MWE \documentclass[12pt,a4paper]{article} \usepackage{tikz} \usetikzlibrary{calc} \begin{document} \begin{tikzpicture}[dot/.style={circle,...
287 views

### Drawing perpendicular lines, filling areas

I still have some trouble with perpendicular lines. This is the figure I'd like to replicate This is my MWE \documentclass[12pt,a4paper]{article} \usepackage{tikz} \usetikzlibrary{calc} \begin{...
2k views

### Drawing a simple plane in 3D space

I'm trying to produce this simple 3d picture, but, since it's the first time I draw a 3d pic, I'm not sure about how to get the plane passing through the line X. The following code shows a first ...
302 views

### Intersections in Tikz

The following code produces , however I would like to highlight the intersection area between the line through the coordinates A and B and that perpendicular to the vector x.3, defined in the \...
252 views

### Drawing lines using \foreach

I'd like to get a picture similar to that uploaded below. Basically, I'm trying to add perpendicular lines to every ray on the positive orthant. This is my attempt, could you tell me what is wrong in ...
125 views

### Tips for improving a code

I'm trying to replicate the following figure. This is my attempt, but I want to get something more precise. \documentclass[12pt,a4paper]{article} \usepackage{tikz} \usetikzlibrary{calc} \begin{...
63 views

Since I am a beginner with Tikz, I wanted to ask what is the best way to include labels to my lines, as in the picture: This is the code: \usepackage{tikz} \usetikzlibrary{calc} \usetikzlibrary{...
609 views

### How to add ticks in a circle in TikZ

Referring to the question How to make add tick to node in tikz, how do I extend this to a circle shape in TikZ. A simple approach is to draw lines as ticks by calculating the coordinates. Sample ...
85 views

### Plotting my chart incorrectly in tikz

MWE \documentclass[tikz,border=10pt]{standalone} \usetikzlibrary{datavisualization} \usetikzlibrary{datavisualization.formats.functions} \usetikzlibrary{patterns,backgrounds} \def\mytypesetter#1{ \...
903 views

### How to draw animated isomorphic graphs?

I saw a nice question & answer over here, about creating an animation to demonstrate graph isomorphism. I'd like to do the same for these two examples: These two are isomorphic: These two aren't ...
202 views

### How to remove unit from variable?

I want to draw an arc of a certain length in cm, so I divide by the circumference in cm and multiply 360 to get the segment in degrees. (Is there a shortcut?) In my MWE b is the unitless number I want ...
209 views

### Calculations within Matrix Tikz

How can I tell tikz to make a calculation within a matrix. The same syntax outside does not work within as is shown in this MWE: \documentclass{article} \usepackage{tikz} \usetikzlibrary{matrix,calc} ...
141 views

### Let Tikz do the Calculating

Most of the work has been done here except I want TiKz to calculate the y values at least. I try here below but need help with the syntax to finish \documentclass{article} \usepackage{tikz} \...
2k views

### TikZ: Understanding the usage of calc library

For the following MWE, I need to place block (yaw) {C} midway between (1) the middle point between (output) and (integrator) (2) and (sum2). So, how can I correct this syntax \node [block] (yaw) at ([...
83 views

### substitution in tikz calc

In this example \documentclass[tikz,border=5pt]{standalone} \usepackage{tikz} \usetikzlibrary{calc} \begin{document} \begin{tikzpicture} \coordinate (a) at (0, 0); \coordinate (b) at (1, 1); \...
220 views

### Using calc library with background package

Im trying to place a page border on every page using ornaments and the background package. I'd like to place this frame 0.6cm away from the border of the page and therefore I'm using the calc library ...
54 views

### TikZ, avoiding uneccessary ad-hoc coordinates calculation

I am wondering whether there would be a simpler way to get a similar figure: (1) avoid adjusting by hand the size of each coloured box, (2) avoid computing by hand the middle of each box from which ...
366 views

### Relative positioning of nodes to bounding box and to path operation

I just tried to use the relative positioning of nodes with respect to the current bounding box of a tikzpicture as proposed in Position node relative to current bounding box. The proposed solution ...
572 views

### Pgfplots: how to have “let” retrieve coordinates in the axis coordinate system? [duplicate]

This is a continuation of my previous question, but now I want to use pgfplots. In an axis environment, I add a node using the axes coordinate system. I would like to use let to retrieve the ...
528 views

### Spin Echo Diagram, Simplification and Scalability

I was able to create the following diagram of a spin echo sequence (NMR, NQR spectroscopy) using TikZ: It was produces using this code snippet: \begin{tikzpicture} \coordinate (yoffset) at (...
277 views

### Can we use let (from TikZ) inside a node's style definition?

I know how to use let from TikZ calc library into a path command and fix some parameter of a particular node on that path. But I would like to use inside node's style definition. As an example, ...
303 views

### Using a custom command inside Tikz-Calc

This my first question here, so I hope that I present it in an appropriate form. At the moment I'm generating lots of schematics using the TikZ-package and it's calc-Library. Therefore I use ...
430 views

### Tikz foreach loop and coordinate computation including scaling

I am trying to plot a number of lines from a point on the segment connecting points from a given list of points to the coordinate origin (0,0). Since I want to automate this procedure, I am using \...
179 views

### Combined rotations in tikz

How to make the center of a rotation in tikz evolve in a for loop, given a trigonometrical formula (that I reckon should be quite simple: l*cos and l*sin)? I am trying to make a scheme of the arm ...