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### Drawing the Celestial Sphere with Tikz Package

I am new to tikz and have been working from the following example ( http://www.texample.net/tikz/examples/map-projections/ ) to get a head start. For better or worse I have managed to get what I ...
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### How to draw spherical geometries with TeX?

I am working in the field of Astrodynamics and have to do many computations using spherical geometry. To visualize some of the concepts I would like to prepare drawings of things like spherical ...
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### How to draw the right ascension and declination of a vector in a rotated coordinate frame in TikZ?

During my research I came across the illustration of two reference frames. In my opinion this illustration is lacking, because the coordinate systems are not drawn. This makes it hard to understand, ...
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### How to draw a fullerene

I just started with chemfig package and am enjoying it very much. I made a quick search here in the community, but found no answer. So, let's go to the question: How to draw a fullerene structure ...
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### Drawing a perspective ellipse with TikZ

I made the following ellipse in Inkscape But I would like to draw it within TikZ environment.My final goal is to put this ellipse inside a coordinate system. Using the image from Inkscape, here is ...
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### Latitude and longitude coordinates on a sphere using tikz

I am trying from Stereographic and cylindrical map projections by Tomas M. Trzeciak to reproduce the two spheres below. However, I am having hard time to understand correctly the code and so far, I ...
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### How to draw a squeezed ellipse with fading color on a sphere surface with TikZ?

Ideally, I would like to draw something like part (c) of the image below: (source: nbi.ku.dk) . Here, I narrow down the question to how to draw an ellipse on the surface of a sphere with fading color ...
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### Add an angle to a sphere

I have a sphere (taken from http://www.texample.net/tikz/examples/, credits to Bartman): % Steradian cone in sphere % Author: Bartman \documentclass[tikz,border=10pt]{standalone} %%%< \...
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### Drawing right ascension and declination on the celestial sphere

I am trying to draw the celestial sphere and can't figure out how to draw arcs around the outer surface of my sphere. I want to draw a red arrow starting from the vernal equinox towards right under ...
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### TikZ - Magnetic field lines images method

I'm working on my Master degree final project and I need some images to illustrate the images method with a magnetic dipole. This is what I have for now: \documentclass{standalone} \usepackage{tikz} \...
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### BlochSphere package : draw black axis

I need to draw the x,y,z axis of my bloch sphere in black (with an arrow at the end of them). I tried this code which doesn't work (my axis are light grey). How to fix it ? I am not sure to ...
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### Arcs on 3D Sphere

I am trying to draw this with tikz: So far I got this together: My (awkward) code: \documentclass[crop,tikz]{standalone} \usepackage{tikz-3dplot} \usepackage{marvosym} \begin{document} \...
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### How to draw a 3D path from points generated within tikz

Let me be specific by posting an example: The following small code draw a piece of helix (an ugly one) \documentclass[12pt]{article} \usepackage{amsmath} \usepackage{tikz} \begin{document} ...