Weeks 7&8 - Review questions

1. Describe two ways to generate transparency using ImageReady.
You can turn off the layer that has the color that you want to make transparent (a white background for example), or go to the color table, click the color you want to make transparent , then click on Maps/Unmaps Selected Color to Transparent icon at the bottom of the palette.
2. What is the purpose of assigning a matte color to a transparent image?
The Matte Color option fades the edges of semi-transparent pixels into the color specified. It means that if the matte color is the same as the web background, you won't have a halo effect.
3. Describe what is meant by the term "halo effect".
Shadows will appear like a halo around the picture if the matte color is not the same as the background color.
4. Describe a simple way to create an animation.
Choose the layers fro the first and last frames, then use the tween command to create the in between frames
5. In what instances can you have IR automatically tween animation frames?
Your use the automatic tween command to create in between frames evenly to give the illusion of movement, by changing the opacity, the position or the effects values.
6. How would you optimize an animation (not standard optimization tasks applied to GIFs in general, but optimization of frames in the animation)?
7. What is frame disposal? Which frame-disposal method should you generally use (Adobe's suggested setting)?
The frame disposal options let you decide if you want the current frame to disappear when the next frame appear. The recommended setting is automatic, which will shed the current frame as long as the next one has a layer transparency.
8.How do you edit an existing animation frame?
By clicking on it in the animation palette
9.Describe what is meant by the term "Unifying Frames"?
I guess this is about unifying layers...If you apply any changes to a layer, it will only apply to the frame that is active. If you want the changes to be reflected in all the frames , use the Unify commands to apply the changes to all frames in one command
10.What are slices?
It is a way of dividing your graphics/interface so that it will be saved in bits and reassemble within a table in html code
11.What are the differences between user slices, layer-based slices and auto-slices?
User slices are slices created by you, layer-based slices are generated by selecting a layer, auto-slices will slice anything else which was not selected
12. Describe 5 ways to generate slices.
You can click the Slice tool and drag around the area you want to choose as a slice. You can create slices from selections. You can generate slices from Guides. You can duplicate an existing slice. You can create a slice from a layer.
13. How would you create a slice with boundaries that exactly encompass a small or unusually shaped object?
Use the selection tool first and then create a slice from the selection
14. What is the advantage of linking slices/rollovers together?
15. Describe two different types of rollovers.
A rollover that uses changes in the same image. A rollover that uses two different images.
16. How many states can a rollover have?
17. Describe a simple way to create rollover states for an image.
Select a layer and click on the correspondent slice, click on the rollover icon. When on the before rollover, select the first layer, when on the rollover state, select the second layer.
18.Summarize the procedure for creating an image map.
I didn't have time to look in detail at this lecture. But I know how to handcode an image map in HTML