.NET/Java PDF, Tiff, Barcode SDK Library

Note Parameters are stored in what is called a local scope. Scoping is discussed later in this chapter.

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Now that you have addressed the data that you will cover in the Explanation and Detail (Methodology/Data) columns and you have determined the priority and sequence of all the slides in Act II, you can free yourself up creatively to make the critical top level of the presentation as interesting, engaging, meaningful, and memorable to your clients as you can. Being visually creative in what is supposed to be a data-driven presentation might initially be perceived as intellectual uff, but with BBP, you know that your creative visual surfaces rest on top of a foundation built from a rigorous critical-thinking process. If your graphics are an aesthetic match with your audience, your clients will nd the images refreshing, and the presentation itself will differentiate you from the boring, disorienting, and lifeless bullet-point presentations of your competitors. As with the preceding examples, if your budget for The Analysis is limited, you ll want to take a quick look to see what graphics are available to integrate as a motif into your story template and storyboard. In keeping with the tapping into wells verbal motif, a search for oil well in iStockphoto turns up a result shown in Figure 9-18 a series of icons including oil wells. This particular graphic is termed an illustration in iStockphoto, which means that it is not a photograph but instead a vector art image that can be opened and manipulated using a vector illustration software program. If you don t know how to use that type of software, most illustrations also come with a version of the illustration that you can insert on your slides and crop to use only the parts you want, as in the following examples.

This is only a proof of the concept, but it demonstrates how File.new can be more useful in certain situations.

In the previous section you used a File object s each method to read each line one by one within a code block. However, you can do a lot more than that. Let s assume your text.txt file contains this dummy data:

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Fred Bloggs,Manager,Male,45 Laura Smith,Cook,Female,23 Debbie Watts,Professor,Female,38

Strings (and numbers and tuples) are immutable: you can t modify them. Therefore there isn t much to say about them as parameters. But consider what happens if you use a mutable data structure such as a list: >>> def change(n): n[0] = 'Mr. Gumby' >>> names = ['Mrs. Entity', 'Mrs. Thing'] >>> change(names) >>> names ['Mr. Gumby', 'Mrs. Thing'] In this example, the parameter is changed. There is one crucial difference between this example and the previous one. In the previous one, we simply gave the local variable a new value, but in this one we actually modify the list that the variable names is bound to. Sound strange It s not really that strange; let s do it again without the function call:

Next we ll look at some of the different techniques you can use to read the file, along with their outputs. First, you can read an I/O stream line by line using each:

If you can t nd the graphics you need, you can create your own or hire someone to create them using a vector illustration software program. Aim for a simple, pared-down style for the graphics. If you export these graphics in .emf or .wmf le formats, you might be able to group, regroup, and recolor the elements using the PowerPoint 2007 graphics tools.

File.open("text.txt").each { |line| puts line }

Fred Bloggs,Manager,Male,45 Laura Smith,Cook,Female,23 Debbie Watts,Professor,Female,38