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} } Example 4-11: Rows and Columns In this example, the for loops are adjacent, rather than one embedded inside the other. The result shows that one for loop is drawing a column of 4 circles and the other is drawing a row of 13 circles: size(480, 120); background(0); noStroke(); for (int y = 0; y < height+45; y += 40) { fill(255, 140); ellipse(0, y, 40, 40); } for (int x = 0; x < width+45; x += 40) { fill(255, 140); ellipse(x, 0, 40, 40); } When one of these for loops is placed inside the other, as in Example 4-10 on page 44, the 4 repetitions of the first loop are compounded with the 13 of the second in order to run the code inside the embedded block 52 times (4×13 = 52). Example 4-10 on page 44 is a good base for exploring many types of repeating visual patterns. The following examples show a couple of ways that it can be extended, but this is only a tiny sample of what’s possible. In Example 4-12 on page 46, the code draws a line from each point in the grid to the center of the screen. In Example 4-13 on page 46, the ellipses shrink with each new row and are moved to the right by adding the y coordinate to the x coordinate. Variables 45
46 Getting Started with Processing <strong>www</strong>.<strong>ebook777.com</strong> Example 4-12: Pins and Lines size(480, 120); background(0); fill(255); stroke(102); for (int y = 20; y
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Example 3-11: Set Stroke Weight. .
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7/Media. . . . . . . . . . . . . .
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12/Data. . . . . . . . . . . . . .
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Figure 8-2. A sine wave is created
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Figure 10-2. Code can be split into
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program has many bugs, you’ll nee
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Style Processing is flexible about
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There are more data types than thos
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drawing, 9 circular motion, 113-116
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lowercase/uppercase letters in code
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Text Editor, 8 textSize ( ) functio
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