2
votes
1answer
71 views

Illegal unit of measure (pt inserted) error when using \foreach with node[pos]

I am trying to draw a path and position nodes on it and fill them using this code and it works \documentclass[varwidth=20cm]{standalone} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw ...
0
votes
1answer
60 views

How can I connect centers of nodes defined using let in a foreach loop?

I want to create a star polygon using a \foreach loop to make nodes for the vertices and another \foreach loop connecting, say, every 4th node. \documentclass[12pt]{amsart} \usepackage{tikz} ...
0
votes
0answers
16 views

How to debug the “Argument of \XC@definec@lor has an extra }” error in Foreach statement? [duplicate]

First, I draw three nodes each of which has three parts. Everything is OK. The code and the image are as follows. \documentclass{article} \usepackage[utf8]{inputenc} \usepackage[]{tikz} ...
4
votes
1answer
996 views

TikZ: using name intersections to define a node

Two questions: What is going wrong with these nodes that are defined from the intersections? Can this be automated with \foreach syntax to find the other vectors for the 2nd point? I couldn't ...
9
votes
3answers
4k views

TikZ: Using Loop to Draw Grid of Nodes

I am trying to draw an Ising model (in my case, a grid of nodes with an undirected edge between adjacent nodes on the same row or column) using TikZ. I have the grid of nodes working nicely using a ...