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Illustrator CS5 for Web and Interactive Design
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Pixel dimension vs. resolution


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Illustrator CS5 for Web and Interactive Design

with Mordy Golding

Video: Pixel dimension vs. resolution

Before we start learning how to create web graphics, it's really important to understand the difference between pixel dimensions and resolution. Many times people refer to web graphics as being 72 ppi or 72 pixels per inch. However, the reality is that's not always the case. You see many of today's monitors are a much higher resolution, like maybe about 120 or 140 pixels per inch. If you look beyond just the computer screen, handheld mobile devices like phones for example, those can have even higher resolutions.
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  1. 6m 56s
    1. Welcome
      1m 33s
    2. Choosing Illustrator for web and interactive design
      2m 54s
    3. Illustrator and the web design workflow
      2m 7s
    4. Using the exercise files
      22s
  2. 40m 9s
    1. Pixel dimension vs. resolution
      4m 14s
    2. Pixel Preview mode and anti-aliasing
      5m 39s
    3. Taking charge of anti-aliasing
      5m 27s
    4. Choosing the right color management settings
      7m 25s
    5. Setting up important preferences
      6m 22s
    6. Setting up a workspace optimized for web design
      11m 2s
  3. 54m 5s
    1. Using the Web document profile
      3m 39s
    2. Creating custom document profiles
      9m 38s
    3. Using Illustrator's free web templates
      2m 33s
    4. Creating a sitemap or wireframe
      2m 50s
    5. Setting up an entire web site
      9m 33s
    6. Setting up a grid
      10m 37s
    7. Setting up an online ad campaign
      8m 13s
    8. Setting up icons for iOS
      2m 24s
    9. Setting up mobile content with Adobe Device Central
      4m 38s
  4. 32m 22s
    1. Understanding web-safe colors
      11m 50s
    2. Limiting the Color Guide to web-safe colors
      4m 53s
    3. Using Recolor Art to convert art to web-safe colors
      4m 54s
    4. Getting color inspiration from Adobe Kuler
      6m 48s
    5. Using Recolor Artwork to modify colors across a site
      3m 57s
  5. 56m 54s
    1. Using the Save for Web & Devices feature
      6m 44s
    2. Understanding the GIF file format and its settings
      10m 20s
    3. Understanding the JPEG file format and its settings
      7m 39s
    4. Understanding the PNG file format and its settings
      3m 21s
    5. Understanding the WBMP file format and its settings
      1m 18s
    6. Understanding the SWF file format and its settings
      4m 13s
    7. Understanding the SVG file format and its settings
      3m 41s
    8. Adjusting the dimensions of a graphic
      4m 46s
    9. Optimizing files to a specific file size
      4m 5s
    10. Modifying Save for Web & Devices output settings
      6m 51s
    11. Previewing content in Adobe Device Central
      3m 56s
  6. 56m 6s
    1. Setting point type in Illustrator
      4m 11s
    2. Setting area type in Illustrator
      5m 20s
    3. Formatting text quickly with paragraph styles
      14m 39s
    4. Overriding formatting with character styles
      3m 2s
    5. Controlling text anti-aliasing
      4m 50s
    6. Simulating the CSS box model
      11m 14s
    7. Adding cool reflections to text and graphics
      8m 26s
    8. Applying settings quickly with Graphic Styles
      4m 24s
  7. 35m 56s
    1. Understanding the concept of slicing
      3m 22s
    2. Creating slices manually
      4m 26s
    3. Creating slices from guides
      2m 45s
    4. Creating slices from objects
      7m 33s
    5. Understanding the different slice types
      4m 20s
    6. Applying settings to slices
      9m 20s
    7. Creating hotspots with image maps
      4m 10s
  8. 23m 35s
    1. Exporting static SWF files from Illustrator
      3m 35s
    2. Animated SWF: Converting Illustrator layers to SWF frames
      4m 3s
    3. Animated SWF: Using blends to define motion
      8m 35s
    4. Animated SWF: Adding static artwork to an animation
      3m 24s
    5. Animated SWF: Controlling time within an animation
      3m 58s
  9. 17m 13s
    1. Preserving slices and structure with PSD export
      6m 10s
    2. Working with Photoshop Smart Objects
      4m 35s
    3. Sharing color swatches between Illustrator and Photoshop
      2m 52s
    4. Generating an animated GIF file with Photoshop
      3m 36s
  10. 7m 28s
    1. Exporting HTML from Illustrator for use in Dreamweaver
      3m 31s
    2. Exporting CSS and DIVs from an Illustrator layout
      3m 57s
  11. 12m 37s
    1. Moving art between Illustrator and Fireworks
      6m 25s
    2. Using dynamic shapes from Fireworks
      3m 48s
    3. Sharing color swatches between Illustrator and Fireworks
      2m 24s
  12. 16m 7s
    1. Building files for use in Flash Catalyst
      4m 28s
    2. Creating a new Flash Catalyst project from an Illustrator file
      3m 40s
    3. Copying and pasting artwork between Illustrator and Flash Catalyst
      2m 4s
    4. Roundtrip editing between Illustrator and Flash Catalyst
      3m 36s
    5. Creating Flex skins for use in Flash Builder
      2m 19s
  13. 19m 48s
    1. Understanding symbols: The lifeblood of Flash
      4m 58s
    2. Symbols: Understanding 9-slice scaling
      4m 18s
    3. Setting text that will be used in Flash Professional
      3m 5s
    4. Moving artwork between Illustrator and Flash Professional
      7m 27s
  14. 1m 6s
    1. Goodbye
      1m 6s

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Illustrator CS5 for Web and Interactive Design
6h 20m Intermediate Sep 24, 2010

Viewers: in countries Watching now:

In Illustrator CS5 Web and Interactive Design, Mordy Golding shows how to create pixel-perfect graphics for use in web sites, video compositions, and mobile apps. This course covers a wide range of workflows, from creating online ad campaigns, web sites, icons, to taking art from Illustrator to Flash Professional. Sharing tips, tricks, and creative techniques along the way, Mordy provides insight and instruction for taking projects from initial concept straight through to production. Exercise files accompany the course.

Topics include:
  • Getting perfectly sized pixel graphics from Illustrator
  • Setting up preferences in Illustrator for web design
  • Creating custom document profiles
  • Getting great color on the web
  • Understanding web graphic file formats (GIF, JPG, PNG, SWF, and SVG)
  • Setting great-looking type
  • Slicing artwork for various tasks
  • Creating Flash animations directly from Illustrator
  • Working with Photoshop Smart Objects
  • Exporting HTML and CSS from Illustrator
  • Integrating with Flash Catalyst
Subjects:
Web Web Graphics Interaction Design Prototyping Web Design
Software:
Illustrator
Author:
Mordy Golding

Pixel dimension vs. resolution

Before we start learning how to create web graphics, it's really important to understand the difference between pixel dimensions and resolution. Many times people refer to web graphics as being 72 ppi or 72 pixels per inch. However, the reality is that's not always the case. You see many of today's monitors are a much higher resolution, like maybe about 120 or 140 pixels per inch. If you look beyond just the computer screen, handheld mobile devices like phones for example, those can have even higher resolutions.

In fact, the iPhone 4 has a resolution of over 300 pixels per inch. The reality is that a real web designer doesn't care about pixels per inch at all. In fact, the whole 72 ppi thing probably started, because the original Macintosh had that resolution on its monitor. But to a web designer today, what matters most is the actual pixel dimension, meaning how many pixels wide and how many pixels tall. For example, if you look at your monitor, it's probably set to a certain resolution, things like 1024 x 768 or 1440 x 900.

We don't really care about the size of the pixels as much as we do as the number of pixels. Take this example that I have right here. As you can see, I've created three rectangles in this document called Resolutions.ai. The three different rectangles represent different pixel dimensions. For standard monitor sizes we have 1024 x 768, 1440 x 900, and 1600 x 1200. Now let's say we're creating some kind of a standard ad banner. So I'll select my Rectangle tool and create a rectangle here of 468 x 60, just a standard ad banner size for the web.

Notice now if I go ahead and position this right about here on the screen, you can see how much space this ad banner takes up on a monitor set to 1024 x 768. However, that same ad banner would appear much smaller on a resolution of 1440 x 900, because look how much more space there is on my screen. In fact, on an even higher resolution, at 1600 x 1200, that ad banner appears miniscule. To get a better idea of this concept, I'm going to come over here to my Artboards panel, and I'm going to double-click where it says Monitors to switch to this artboard.

Here, I have two laptop computers. These are both the 15-inch model that Apple makes for that MacBook Pros, but the resolutions are actually set to different resolution settings on the monitors. For example, on this laptop right here, the monitor is set to 1024 x 768, whereas on this laptop here the screen is set to resolution of 1440 x 900. You can see that on the higher resolution monitor, the graphics appear smaller. But I can also see a lot more information.

I could actually see more of my page at once than I would on the lower resolution one. In other words, if I have a very high resolution, I can see more content at once, but the content is a little bit smaller, whereas in a lower resolution I can actually see larger images, but I can get less content on my screen at any one time and I need to scroll more to see it. Now as a designer, there are two main things that you're going to need to think about. If you're creating graphics to the specification that someone else has defined, for example, you're creating graphics for someone else's web site.

That can be an ad banner or some other graphics, for example. In those cases, you will be given the precise pixel dimensions that you'll need to use. However, if you're designing your own web site, it's going to be up to you to decide which dimensions you want to use. Many web designers today assume that most people have at least 1024 x 768 monitor. So they generally design web sites at a width of around 950 pixels in width. Of course, these are all decisions that you're going to have to make.

But the first thing to realize is that the whole concept of 72 pixels per inch shouldn't factor into any of your decisions at all. The only thing that matters now is going to be the actual dimensions or the number of pixels in the artwork that you're going to be creating.

Find answers to the most frequently asked questions about Illustrator CS5 for Web and Interactive Design.


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Q: In the chapter 5 movie, "Simulating the CSS box model," the author details the CSS box, but names the inner portion the margin and the outer portion the padding. This is reversed from what I’ve have seen elsewhere. Is this an error in the video?
A: This video does indeed contain an error where the author describes the margin and padding. The padding should be described as the area inside the border, and the margin the area outside the border.
 
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