5 (3)

5 (3)

#### Overview of this book

In this first-of-its-kind TikZ book, you’ll embark on a journey to discover the fascinating realm of TikZ—what it’s about, the philosophy behind it, and what sets it apart from other graphics libraries. From installation procedures to the intricacies of its syntax, this comprehensive guide will help you use TikZ to create flawless graphics to captivate your audience in theses, articles, or books. You’ll learn all the details starting with drawing nodes, edges, and arrows and arranging them with perfect alignment. As you explore advanced features, you’ll gain proficiency in using colors and transparency for filling and shading, and clipping image parts. You’ll learn to define TikZ styles and work with coordinate calculations and transformations. That’s not all! You’ll work with layers, overlays, absolute positioning, and adding special decorations and take it a step further using add-on packages for drawing diagrams, charts, and plots. By the end of this TikZ book, you’ll have mastered the finer details of image creation, enabling you to achieve visually stunning graphics with great precision.
Chapter 1: Getting Started with TikZ
Free Chapter
Chapter 2: Creating the First TikZ Images
Chapter 3: Drawing and Positioning Nodes
Chapter 4: Drawing Edges and Arrows
Chapter 5: Using Styles and Pics
Chapter 6: Drawing Trees and Graphs
Chapter 7: Filling, Clipping, and Shading
Chapter 8: Decorating Paths
Chapter 9: Using Layers, Overlays, and Transparency
Chapter 10: Calculating with Coordinates and Paths
Chapter 11: Transforming Coordinates and Canvas
Chapter 12: Drawing Smooth Curves
Chapter 13: Plotting in 2D and 3D
Chapter 14: Drawing Diagrams
Chapter 15: Having Fun with TikZ
Index
Other Books You May Enjoy

# Parametric plotting

In Chapter 10, we used the `calc` package to draw Archimedean spirals in Figure 10.8 and Figure 10.9. The syntax gets easier with a plotting package, and we get a coordinate system with axes on top.

Instead of using degrees for angles, we can use radians. These are an alternative means of angle measurement, happily used especially by mathematicians. Though radian values are simple numbers, we usually express them in multiples of π. For example, a right angle, 90 degrees, would be written as π/2, and 180 degrees are equal to π. We could say 180 degrees is about 3.14 in radians, but we use π. In the same way, 360 degrees equal 2π, and 1,080 degrees is 6π.

We will use radian values and labels in our next plot. For this, we switch the plotting format to radian using the following command:

`\pgfplotsset{trig format plots=rad}`

Now, we can use radian values for the domain of the plot, which is calculated with radian arguments...