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pycairo.tar.gz

Pycairo

In this course, you will use Python’s Pycairo library to draw complex shapes. So if you have an appetite for virtual reality, or game development, then this course will serve you well.

You will start with basic concepts like: What is the difference between pixel and vector graphics? After that, you will learn to make basic drawings and then you will move on to complex shapes. Throughout, you will cover important concepts like transform and state, working with text, gradients, and a whole lot more.

By the time you finish this course, you will have a powerful new library at your disposal, and you’ll be able to construct beautiful graphics that users will love.

Computer Graphics in Python and Pycairo

We took a quick look at arcs in one of the previous chapters. This time, we will look more closely at how angles are interpreted and how arcs connect to other lines and curves.
## Arc angle rules
The arc function looks like this:
```
ctx.arc(x, y, r, a1, a2)
```

It draws an arc of a circle, with center (`x, y`), and radius `r`. The arc starts at angle `a1` and ends at angle `a2`. Here is an example:

We took a quick look at arcs in one of the previous chapters. This time, we will look more closely at how angles are interpreted and how arcs connect to other lines and curves.
# Arc angle rules
The arc function looks like this:
```
ctx.arc(x, y, r, a1, a2)
```

It draws an arc of a circle, with center (`x, y`), and radius `r`. The arc starts at angle `a1` and ends at angle `a2`. Here is an example:

Learn how angles work in an arc and how arcs are connected with lines and curves.

Introduction

Introduction to Vector Graphics

Basic Drawing Operations

Paths and Complex Shapes

Computer Color

Transforms and State

Working with Text

Gradients and Image Fills

Clipping, Masking and Compositing

Surfaces and Output Formats

Integration with Other Libraries

Conclusion

Arcs

Arc angle rules