On Mon, Feb 13, 2012 at 1:01 AM, Niki Spahiev wrote:
> You can get polygon buffer from http://angusj.com/delphi/clipper.php and
> make cython interface to it.
This should be built into GEOS as well, and the shapely package
provides a python wrapper already.
-Chris
> HTH
>
> Niki
>
> _
You can get polygon buffer from http://angusj.com/delphi/clipper.php and
make cython interface to it.
HTH
Niki
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On Sun, Feb 12, 2012 at 20:26, Andrea Gavana wrote:
> I know, my definition of "parallel" was probably not orthodox enough.
> What I am looking for is to generate 2 curves that look "graphically
> parallel enough" to the original one, and not "parallel" in the true
> mathematical sense.
There is
Jonathan,
On 12 February 2012 21:59, Jonathan Hilmer wrote:
> Andrea,
>
> I realized that my answer wouldn't be complete, but as people have
> pointed out that's a substantially more difficult question, so I
> wanted to give you a complete answer to just a subset of your problem.
>
> I'm currently
Andrea,
I realized that my answer wouldn't be complete, but as people have
pointed out that's a substantially more difficult question, so I
wanted to give you a complete answer to just a subset of your problem.
I'm currently writing a variant that avoids the overlapping normal
vectors by interati
On Sun, Feb 12, 2012 at 1:26 PM, Andrea Gavana wrote:
> Charles,
>
> On 12 February 2012 21:00, Charles R Harris wrote:
> >
> >
> > On Fri, Feb 10, 2012 at 9:38 AM, Andrea Gavana
> > wrote:
> >>
> >> Hi All,
> >>
> >>my apologies for my deep ignorance about math stuff; I guess I
> >> should b
On Sun, Feb 12, 2012 at 1:21 PM, Andrea Gavana wrote:
> Jonathan,
>
> On 12 February 2012 20:53, Jonathan Hilmer wrote:
> > Andrea,
> >
> > Here is how to do it with splines. I would be more standard to return
> > an array of normals, rather than two arrays of x and y components, but
> > it actua
Charles,
On 12 February 2012 21:00, Charles R Harris wrote:
>
>
> On Fri, Feb 10, 2012 at 9:38 AM, Andrea Gavana
> wrote:
>>
>> Hi All,
>>
>> my apologies for my deep ignorance about math stuff; I guess I
>> should be able to find this out but I keep getting impossible results.
>>
>> Basically
Jonathan,
On 12 February 2012 20:53, Jonathan Hilmer wrote:
> Andrea,
>
> Here is how to do it with splines. I would be more standard to return
> an array of normals, rather than two arrays of x and y components, but
> it actually requires less housekeeping this way. As an aside, I would
> prefe
On Fri, Feb 10, 2012 at 9:38 AM, Andrea Gavana wrote:
> Hi All,
>
>my apologies for my deep ignorance about math stuff; I guess I
> should be able to find this out but I keep getting impossible results.
>
> Basically I have a set of x, y data (around 1,000 elements each) and I
> want to create
Andrea,
Here is how to do it with splines. I would be more standard to return
an array of normals, rather than two arrays of x and y components, but
it actually requires less housekeeping this way. As an aside, I would
prefer to work with rotations via matrices, but it looks like there's
no supp
HI Chris and All,
On 10 February 2012 17:53, Chris Barker wrote:
> Andrea,
>
>> Basically I have a set of x, y data (around 1,000 elements each) and I
>> want to create 2 parallel "curves" (offset curves) to the original
>> one; "parallel" means curves which are displaced from the base curve
>> by
Andrea,
> Basically I have a set of x, y data (around 1,000 elements each) and I
> want to create 2 parallel "curves" (offset curves) to the original
> one; "parallel" means curves which are displaced from the base curve
> by a constant offset, either positive or negative, in the direction of
> th
Hi All,
my apologies for my deep ignorance about math stuff; I guess I
should be able to find this out but I keep getting impossible results.
Basically I have a set of x, y data (around 1,000 elements each) and I
want to create 2 parallel "curves" (offset curves) to the original
one; "paralle
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