دانلود کتاب Python 2.6 Graphics Cookbook

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Cover......Page 1
Copyright......Page 3
Credits......Page 4
About the Author......Page 5
About the Reviewers......Page 6
Table of Contents......Page 8
Preface......Page 12
Introduction......Page 16
Running a shortest Python program......Page 17
Ensuring that the Python modules are present......Page 18
A basic Tkinter program......Page 20
Make a compiled executable under Windows and Linux......Page 22
Chapter 2: Drawing Fundamental Shapes......Page 26
Introduction......Page 27
A straight line and the coordinate system......Page 28
Draw a dashed line......Page 29
Lines of varying styles with arrows and endcaps......Page 31
A two segment line with a sharp bend......Page 33
A line with a curved bend......Page 34
Drawing intricate shapes – the curly vine......Page 35
Draw a rectangle......Page 38
Draw overlapping rectangles......Page 39
Draw concentric squares......Page 41
A circle from an oval......Page 43
A circle from an arc......Page 45
Three arc ellipses......Page 46
Polygons......Page 47
A star polygon......Page 48
Cloning and resizing stars......Page 50
Simple text......Page 54
Text font type, size, and color......Page 56
Alignment of text – left and right justify......Page 60
All the fonts available on your computer......Page 65
Introduction......Page 68
Static shifting of a ball......Page 69
Time-controlled shifting of a ball......Page 70
Complete animation using draw-move-pause-erase cycles......Page 73
More than one moving object......Page 74
A ball that bounces......Page 76
Bouncing in a gravity field......Page 78
Precise collisions using floating point numbers......Page 81
Trajectory tracing and ball-to-ball collisions......Page 83
Rotating line......Page 87
Trajectory tracing on multiple line rotations......Page 89
A rose for you......Page 93
Introduction......Page 96
A limited palette of named colors......Page 97
Nine ways of specifying color......Page 101
A red beachball of varying hue......Page 102
A red color wedge of graded hue......Page 105
Newton\'s grand wheel of color mixing......Page 107
The numerical color mixing matching palette......Page 112
The animated graded color wheel......Page 117
Tkinter\'s own color picker-mixer......Page 121
Chapter 6: Working with Pictures......Page 124
Opening an image file and discovering its attributes......Page 125
Open, view, and save an image in a different file format......Page 128
Image format conversion for JPEG, PNG, TIFF, GIF, BMP......Page 129
Image rotation in the plane of the image......Page 131
Image size alteration......Page 132
Correct proportion image resizing......Page 134
Separating one color band in an image......Page 135
Red, green, and blue color alteration in images......Page 136
Slider controlled color manipulation......Page 138
Combining images by blending......Page 141
Blending images by varying percentages......Page 142
Make a composite image using a mask image......Page 143
Flip horizontally, vertically, and rotate......Page 145
Filter effects: blur, sharpen, contrast, and so on......Page 146
Chapter 7: Combining Raster and Vector Pictures......Page 150
Simple animation of a GIF beach ball......Page 151
The vector walking creature......Page 152
Bird with shoes walking in the Karroo......Page 156
Making GIF images with transparent backgrounds using GIMP......Page 160
Diplomat walking at the palace......Page 163
Spider in the forest......Page 167
Moving band of images......Page 171
Continuous band of images......Page 173
Endless background......Page 175
Introduction......Page 178
Creation of a new file on a hard drive......Page 179
Writing data to multiple files......Page 180
Adding data to existing files......Page 181
Saving a Tkinter-drawing shape to disk......Page 182
Retrieving Python data from disk storage......Page 183
Simple mouse input......Page 184
Storing and retrieving a mouse-drawn shape......Page 185
A mouse-line editor......Page 188
All possible mouse actions......Page 192
Introduction......Page 196
The structure of an SVG drawing......Page 197
Tracing the shape of an image in Inkscape......Page 200
Converting an SVG path into a Tkinter Line......Page 205
Introduction......Page 210
Widget configuration – a label......Page 211
Button focus......Page 212
The simplest push button with validation......Page 214
A data entry box......Page 215
Colored button causing a message pop-up......Page 218
Complex interaction between buttons......Page 219
Images on buttons and button packing......Page 222
Grid Geometry Manager and button arrays......Page 224
Drop-down menus to select from a list......Page 226
Listbox variable selection......Page 227
Text in a window......Page 229
Introduction......Page 230
The Grid Layout Geometry Manager......Page 231
The Pack Geometry Manager......Page 233
Radiobuttons to select one from many......Page 234
Checkbuttons (Tickboxes) to select some of many......Page 235
Key-stroke event handling......Page 237
Scrollbar......Page 238
Custom DIY controller widgets......Page 239
Organizing widgets inside frames......Page 243
Where will we find the windows installer?......Page 246
Why do we get \"python is not recognized…\"......Page 247
Index......Page 250