4.0

Item Description
Top and Left You can reposition a menu block by typing new values in the Top and
Left boxes. In most cases, you will not need to do this because you
can determine the precise location of the menu blocks when
designing your Photoshop file. There are instances when dealing with
odd-shaped menu blocks, or other menu blocks whose background
image does not fill the entire menu block area, where the ability to
make fine adjustments to its position is required.
Note regarding the placement and animation of multiple menu
blocks:
You are allowed to create multiple menu blocks in your project.
A practical example of this would be to have one menu block
for chapter selection, another for special features, and perhaps
a third for disc setup options. Visually, it is often desirable to
position the menu blocks to appear in the same area of the
screen and animate on and off.
When authoring a project that involves multiple menu blocks
that appear in the same part of the screen, the responsibility is
on you, the author, to author your animation actions in such a
way that the menu blocks never overlap on screen at the same
time. For example, if one button on your Main Menu displays
the menu block that shows the chapter selection, and another
button on the Main Menu displays the menu block that contains
the special features, you must be sure that the chapter selection
is always hidden before the viewer can select the special
features and vice versa. If you allow both menu blocks to
appear in the same location on screen at the same time this can
cause erratic playback behavior such as one menu block erasing
part of the menu block that it overlaps.
Width and Height If you are using a background image, the width and height of the
menu block are determined by the image and cannot be edited in the
Control Panel.
If you selected the Make Background Transparent check box, you
can change the size of the menu block by typing new values in the
Width and Height boxes.
Set properties
Often, you will design a menu that requires more buttons than you can reasonably fit onscreen at one time.
A practical example of this would be a chapter selection menu in which you have 25 chapters to choose
from. While you could place all 25 chapter icons in your menu block, it might be desirable to break them
into smaller groups and display the groups individually. This is what sets are designed to do.
A good way to think of sets is as layers of your menu block that are stacked on top of each other. Each set
contains its own set of buttons and each set can contain its own background image or it can be
transparent. Only one set can be visible at a time.
96CHAPTER 10