Forum: Inkscape Re: Inkscape 4.8 outset/inset behavior

Attached is Outset_Test.svg
The path was created with Ctrl-K.
Inkscape step parameter has been set to 56.25px (5/8")
The Outset results are very strange.
Any info would be appreciated.

- Susan



> Can you attach the SVG file that originally exposed the unexpected
> behavior of the 'Path > Outset' command?
>

Attached is a 2nd file, Outset_Test_2, which has two objects which look
exactly the same: the pink object was created with several path 
statements
and has not yet been transformed into a single closed path via Ctrl-K, 
the
green object is a single closed path created by one path statement.
- Susan

On 29/8/10 16:43, Susan Spencer wrote:

> Attached is Outset_Test.svg   
> The path was created with Ctrl-K.
> Inkscape step parameter has been set to 56.25px (5/8")
> The Outset results are very strange.
> Any info would be appreciated.

Inspect your path with the node tool: 'Ctrl-K' just combines paths (i.e.
former separate paths turn into sub-paths but are not joined at the
start/end nodes). Besides that, the main problem was a duplicate path
segment at the bottom with reversed path direction which caused the
unexpected results of 'Path > Outset'. In the attached drawing I moved
the different sub-paths of the original path to make them visible and
numbered the nodes (in path direction).

hth, ~suv

On 29/8/10 17:03, Susan Spencer wrote:
> Attached is a 2nd file, Outset_Test_2, which has two objects which look
> exactly the same: the pink object was created with several path
> statements and has not yet been transformed into a single closed path
> via Ctrl-K, the green object is a single closed path created by one path
> statement. 

'Ctrl+K' does not create closed paths, it adds the selected paths as
sub-paths into one big path, not touching the node types nor adding
connecting segments or joining coinciding nodes.

Use the node tool to join end/start-nodes of sub-paths or insert
segments between unconnected sub-paths, and to remove redundant 
segments.


hth, ~suv

On 29/8/10 17:13, ~suv wrote:
> start/end nodes). Besides that, the main problem was a duplicate path
> segment at the bottom with reversed path direction which caused the
> unexpected results of 'Path > Outset'. In the attached drawing I moved
> the different sub-paths of the original path to make them visible and
> numbered the nodes (in path direction).

Minor correction: not the redundant path segment with reversed direction
was responsible for the unexpected result: trying a better 
explanation...

As noted in the manual page [1], when applying 'Outset' on open paths
the outset path is closed. The same applies to each sub-path: it gets
closed and the closed path is outset. Thus a straight line segment is
not 'offset' but outset on all sides. Each sub-path of your pattern is
outset as separate shape (see attached drawing trying to illustrate).


hth, ~suv

[1]
<http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Paths-Editing.html#Paths-Offsets>