All of CC3’s entitites have a fill style, however, some entity types are closed and can have a fill style; others are open and only exhibit the fill if they have width. If an entity has a Hollow fill style, it does not fill whatever its type.
Open entities: These include lines, paths and arcs. A width 0 open entity does not exhibit a fill style; neither does a width 0 path. If you give an open entity a width, you can see the fill style in the edge.
Closed entities: These include polygons, smooth polygons and circles. If these have a width of 0 then they will fill completely with a fill style. If they have a width of greater than one, only the boundary will fill.
Filling complex areas
The difficulty is then, how can you fill complex areas consisting of a number of entities? First, you can combine separate straight-edged entities together using Line to Path. You can convert curved edge into straight edge entities using Explode , then use Line to Path on them .
CC3 also has a special entity type called a mulitpoly. This combines a bunch of entities into one, allowing you to add a fill style.
To create a multipoly, first check that all the entities join up properly. The endpoints of each entity must connect exactly. To make sure of this:use Attach mode or modifiers when drawing th entities. If you haven’t done this, use Trim to Intersection on areas where entities connect.
If you see a "leak" it is almost certain that you have a multipoly which has gaps in it.
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