Python Graphics: A Reference for Creating 2D and 3D Images

ISBN-13: 9781484296592 / Miękka / 2023 / 471 str.

Bernard Korites

Spis treści

Chapter 1: Essential Python Commands and Functions

Programming style, the plotting area, Size of the plotting area, importing plotting

commands, displaying the plotting area, the plotting grid, saving a plot, grid color,

tick marks, custom grid lines, labelling the axes, plot title, colors - mixing, intensity,

overplotting, background color, plotting area shape, correcting shape distortions, coordinate exes, commonly used plotting commands and functions, point, dots, lines,

arrows, text in plots, lists, tuples and arrays.

Chapter 2: Graphics in Two Dimensions

Making lines from dots, dot art, circular arcs from dots, circular arcs from line segments, circles, dot circles, ellipses, 2D translation, 2D rotation.

Chapter 3: Graphics in Three Dimensions

The 3-dimensional coordinate system, projections onto the coordinate planes, rotations

around the y, x and z directions, separate rotations around the coordinate directions,

sequential rotations around the coordinate directions, matrix concatenation, keyboard

data entry with functional program structure.

Chapter 4: Perspective

3D objects with perspective transformation.

Chapter 5: Intersections

3D Lines intersecting 3D rectangular plane, triangular planes, circle, circular sector,

sphere, plane intersecting a sphere.

Chapter 6: Hidden Line Removal

box, pyramid, planes, sphere.

Chapter 7: Shading

Shading a box, a sphere.

Chapter 8: 2D Data Plotting

Linear regression, function fitting, splines.

Chapter 9: 3D Data Plotting

3D surfaces, surface shading.

Chapter 10: Demonstration - Saturn

Chapter 11: Demonstration - The Sun

solar radiation, photons and the Sun, Max Planck’s black body radiation, the Sun’s

total power output, Earth’s irradiance, the Sun Earth model.

Chapter 12: Demonstration - Electron Probability Clouds

Chapter 13: Demonstration - Climate Change

Chapter 14: Demonstration - Ecological Diversity

Chapter 15: Demonstration - Population Dynamics

Chapter 16: Demonstration - Resource Management

Chapter 17: Demonstration - More Images of Saturn

Appendix A: Where to Get Python

Appendix B: Planck’s Radiation Law and the Stefan-Boltzmann Equation

Appendix C: A Primer on Python Programming

Appendix D: Standard Python Programming Functions

O autorze

Dr. Bernard J. Korites holds degree from Tufts and Yale. He has been involved in engineering and scientific applications of computers for his entire career. He has been an educator, consultant, and author of more than ten books on geometric modeling, computer graphics, simulation of physical processes, and the application of computers in science and engineering.

He has been employed by Northrop Aviation, the Woods Hole Oceanographic Institute, Arthur D. Little, and Itek. He has consulted for the US Navy, Aberdeen Proving Grounds, and others. He was Chief Engineer on an expedition to take the longest sediment core sample in the North Atlantic aboard the Canadian Icebreaker John Cabot. He has made numerous dives aboard the submersible Alvin and has spent time aboard the USBCF Albatross. Early in his Career, he developed software to find physical interference between systems of solid objects. This found wide application in the design of power plants, submarines, and other systems with densely packed spaces.

Blurb

This book shows how to use Python’s built-in graphics primitives - points, lines, and arrows – to create complex graphics for the visualization of two- and three-dimensional objects, data sets, and technical illustrations.

This updated edition provides more detailed explanations where required, especially regarding Python code, and explores applications to topics of contemporary importance.  You’ll learn how to create any 2D or 3D object or illustration, as well as how to display images, use color, translate, rotate, shade, add shadows that are cast on other objects, remove hidden lines, plot 2D and 3D data, fit lines and curves to data sets, display points of intersection between 2D and 3D objects, and create digital art. Demonstrations are included which illustrate graphics programming techniques by example, the best way to learn a language.

Also brand new to this edition are demonstrations on how to visualize electron probability clouds around a nucleus, climate change, ecological diversity, population dynamics, and resource management. Python source code, including detailed explanations, is included for all applications, making the book more accessible to novice Python programmers.

After completing this book, you will be able to create compelling graphic images without being limited to functions available in existing Python libraries.

You will:

• Create 2D and 3D graphic images
• Add text and symbols to images
• Shade 3D objects
• Display cast shadows
• Use color for maximum effect
• View 2D and 3D data sets
• Fit lines and curves to data sets