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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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