surface area, contour length

>>Also, a good idea is to have also informations
>>about the contour of a selected object or
>>group of objects.
(somenthing showing the length of a path, very usefull for
cutting plotters)

I second that. I've submitted such a request twice, I assume
it got deleted because it was anonymous. It would be very
valuable to determine the length of a curved path between 2 or
more points...or the entire surface length of an object.

I also need this feature. It would allow to measure length
and surfaces on vectorized bitmaps.

njh: thanks for your measure path extension, now if you add
 measuring area to it we'll be able to close this :)

Originator: NO

What happened to this? This would be an extremely useful feature. I often
used my old vector drawing program to measure distances on maps by drawing
curves over them. I miss this ability in InkScape.

Originator: NO

Use Effects > Visualize path > Measure path

Originator: NO

2Geom provides unsigned centroid(Piecewise<D2<SBasis> > const &p, Point&
centroid, double &area); which returns the centroid and the area (can could
easily be modified to return an arbitrary moment). Feel free to port the
measuring tool to an LPE and add area.

The area request still isn't fulfilled AFAICT.

The code is 2geom: be my guest.

njh

On Tue, 18 Dec 2007, Peter Lewerin wrote:

> The area request still isn't fulfilled AFAICT.
>
> ** Changed in: inkscape
> Importance: Undecided => Wishlist
> Status: New => Confirmed
>
> --
> surface area, contour length
> https://bugs.launchpad.net/bugs/170757
> You received this bug notification because you are a bug assignee.
>

Buliabyak-users wrote:
> Use Effects > Visualize path > Measure path

The 'Measure path…' extension in Inkscape 0.48 optionally measures the area, see bug #269002. AFAIU the calculation of the area is based on the functions provided in the bundled python modules, not on the internal 2geom functions which cannot be used from script extensions.

Closing as 'Fix Released'. Feel free to reopen if the enhanced extension does not satisfy your request.

On Sat, Jan 29, 2011 at 08:09:27PM -0000, ~suv wrote:
> Buliabyak-users wrote:
> > Use Effects > Visualize path > Measure path
>
> The 'Measure path???' extension in Inkscape 0.48 optionally measures the
> area, see bug #269002. AFAIU the calculation of the area is based on the
> functions provided in the bundled python modules, not on the internal
> 2geom functions which cannot be used from script extensions.

There are python bindings for 2geom. It is just a matter of writing
the new versions.

njh