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### position arc relative to circle [duplicate]

Possible Duplicate: Draw arc in tikz when center of circle is specified an very trivial question but I can't do it! Sorry but I find coordinates confusing. I would like to draw an arc around a ...
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### Drawing a TikZ arc specifying the center

The TiKz command for an arc: \draw (0,0) arc (-30:30:2) ; Draws an arc that starts at (0,0), and would be the part of the circle from -30 degrees to +30 degrees of radius 2. It is very hard to ...
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### 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 coordinate ...
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### TikZ: using the ellipse command with a start and end angle instead of an arc

Consider the code below: \documentclass[convert = false]{standalone} \usepackage{tikz} \usetikzlibrary{arrows} \begin{document} \begin{tikzpicture} \draw[-latex] (0, 0) ellipse [x radius = 3cm, y ...
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### Spherical triangles and great circles [duplicate]

I want to draw an image of a non-shaded sphere (just a circular border) with three intersecting great circles that are solid on the visible side and dashed on the back side. Further I want to be able ...
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### How to draw an Euler angle rotation sequence with TikZ?

For some lecture notes I want to illustrate successive unit axis rotations using Euler angles. I am quite happy with what I came up with so far: However, I am failing at drawing the angles in between ...
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### How to draw a ring-like diagram with some labels on its arcs?

I would like to draw a figure that looks like the following scenario: Consider a circle of radius $r$, described parametrically by $x = cos(t) and y = sin(t)$. I'd like to draw a figure where the ...
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### Connect vertices of a regular poly by curved arrows

I have a diagram that is simply a set of nodes distributed evenly around a circle. How can I connect the nodes with arrows that are circular? e.g., suppose we have a pentagon with nodes at each ...
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### How does TikZ render an arc? [duplicate]

With the sample MWE below, TikZ generates the following diagram: 1. Drawing an arc \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \coordinate[label=below:$a$] (a) ...
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### Where to define new TikZ commands

I have to start by saying that I am a newbie to LaTeX, let alone TikZ. In order to solve another problem, I found a solution in another question in a comment by Tom Bombadil. He defines the new ...
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### How to automatically obtain the center of the circle used to draw the arc in TikZ?

The TikZ arc command is a little unusual, since the center of the circle used is not actually specified in the API. The API does not follow standard arc construction. From example, in Mathematica, to ...
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### How draw this figure (spiral) in tikz?

I would like to draw this figure in tikz. This figure below is already in tikz, but I would like to develop the code.
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### How to draw a Technology Radar?

How to draw a Technology Radar? Situation and Problem A friend of mine, who is not really into LaTeX has to create a diagram which they call "techonology radar". Apparently there are no best ...