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If you don t have access to a Tablet PC, the next best thing to use is paper. To sketch your complete storyboard, you ll need to print a paper copy. To do this, click the Microsoft Of ce Button, click Print, and then click Print again to open the Print dialog box. Click the Print What drop-down arrow, and select one of the following options: Select Slides in the Print What drop-down list to print an individual copy of each slide. You can tape these pages to a wall or assemble them in a loose-leaf notebook that you can ip through as you sketch ideas for individual slides. Select Notes Pages to print the notes pages. Assemble these pages in a notebook so that you can sketch visuals in the slide areas or take notes to add to the notes areas later. Select Handouts, click the Slides Per Page drop-down arrow, and click 1, 2, 3, 4, 6, or 9 to print the corresponding number of slides per page. Use these pages to sketch on multiple slides per page on the thumbnail images of the slides. When you have selected a format, click OK to print. Although the examples in 7 were all sketched using a Tablet PC, you can apply most of the same techniques by sketching a paper storyboard.

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If you re about to iterate over an array, you might want to check if it has any items yet. You could do this by checking if array.size or array.length is larger than 0, but a more popular shorthand is to use empty :

If you are formatting real numbers (floats), you can use the f specifier type and supply the precision as a . (dot) followed by the number of decimals you want to keep. The format specifier always ends with a type character, so you must put the precision before that: >>> format = "Pi with three decimals: %.3f" >>> from math import pi >>> print format % pi Pi with three decimals: 3.142

The include method returns true if the supplied parameter is in the array, and false otherwise:

x = [1, 2, 3] puts x.include ("x") puts x.include (3)

To make sketching your paper storyboard more convenient by printing more than nine slides on a single page, see the section Tip 8: Print FullPage Storyboards later in this chapter.

Accessing the first and last elements of an array is easy with the first and last methods:

The string module offers another way of formatting values: template strings. They work more like variable substitution in many UNIX shells, with $foo being replaced by a keyword argument called foo that is passed to the template method substitute:1 >>> from string import Template >>> s = Template('$x, glorious $x!') >>> s.substitute(x='slurm') 'slurm, glorious slurm!'

If you pass a numeric parameter to first or last, you ll get that number of items from the start or the end of the array:

6

x = [1, 2, 3] puts x.first(2).join("-")

Like a string, an array can be reversed:

Whether you have an electronic version or a paper version, as you review and work with your new storyboard, three ground rules can help you and your audience to stay connected to the big picture.

[3, 2, 1]

If the replacement field is part of a word, the name must be enclosed in braces, in order to make it clear where it ends: >>> s = Template("It's ${x}tastic!") >>> s.substitute(x='slurm') "It's slurmtastic!" In order to insert a dollar sign, use $$: >>> s = Template("Make $$ selling $x!") >>> s.substitute(x='slurm') 'Make $ selling slurm!' Instead of using keyword arguments, you can supply the value-name pairs in a dictionary (see 4): >>> s = Template('A $thing must never $action.') >>> d = {} >>> d['thing'] = 'gentleman' >>> d['action'] = 'show his socks' >>> s.substitute(d) 'A gentleman must never show his socks.' There is also a method called safe_substitute that will not complain about missing values or incorrect uses of the $ character. See Section 4.1.2, Template strings, of the Python Library Reference (http:// python.org/doc/lib/node108.html).

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