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The
Anatomy of a Vector Illustration
Part 3A |
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Composite Paths and Object Grouping and Combining
Deneba Canvas™, Adobe® Illustrator®, CorelDRAW and Macromedia®
FreeHand® also share the following features...
Objects may be:
1. Grouped or
2. Formed into Composite Paths or
3. Combined into new objects
The Differences Between Composite Paths and Object Grouping And
Combining
1. Object Grouping
Objects retain all their original properties and appearance when grouped.
Grouping allows them to be selected with a single click and moved,
resized, deleted, etc. as a single unit. Grouping has no other affect
on the original appearance of the objects. Below are examples of object
groups:
2. Composite Paths
Creating a composite path from separate objects makes it possible
to make doughnut-shapes and knockouts where more than one path is
required. It is how the letter "O" is made. A composite path does
not alter the original objects and it can be split into its original
objects with a single command. Below are examples of the effect of
creating composite paths out of the same objects:
3. Combining Objects
Combining objects is a means of merging existing shapes into new shapes.
With object combining, the original objects are altered. In some cases
the original objects can be recreated from the new shapes by ungrouping
or reapplying object combining again to these new shapes. In other
cases, however, the effects of object combining is not so easily undone.
Below are examples of the effect of combining objects into new shapes:
How Each Application Defines Composite Paths and Object Grouping
and Combining
Grouping and ungrouping objects, making and breaking composite paths
and combining objects is supported by all four applications. The terms
"group" and "ungroup" are identical between them. Composite paths
and combined objects are defined differently, however:
| Program |
Composite Paths |
Combined Objects |
| CorelDRAW |
(Combining Objects)
Combine and Break Apart |
Welding, Trimming
and Intersecting Objects |
Adobe
Illustrator |
(Compound Path)
Make and Release |
Pathfinder - Combine, Isolate
and Subdividing Objects |
Macromedia
FreeHand |
(Composite Path)
Join and Split |
Merging Objects |
Deneba
Canvas |
(Composite Path)
Make Composite / Break Composite |
Combining Objects |
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