Hi
> If all we need to do is replace
> calls to getCoordinate with getCentroid, I can prepare a patch for
> this as well.
>
I don't know who (which plugin) use it, but I think that with the
current implementation, the centerOfMass of a set of polygons made of a
single regular polygon will retu
Michael,
When I fist started looking hard at the method, I realized that
"center of mass" could mean different things to different people. I
don't have time now to explore the differernt ways this center of mass
could be defined and the different ways this method could be
implemented, but it sound
Hi,
I think you're right again.
For a better result with non puntal geometries, one should use
getCentroid instead of getCoordinate in getCenterOfMass method
One could also compute something closer to a center of mass by using the
area or the length of the feature as the "mass" of each feature
O
Roger that Michael. I will remove the portions of my method that deal
with empty geomtries.
Thanks for the suggestion.
SS
2009/6/24 Michaël Michaud :
> Hi,
>
> I agree getCoordinate must be replaced by getEnvelopeInternal, but your
> method is way too complex.
> If you study Envelope class, you'
Hi,
I agree getCoordinate must be replaced by getEnvelopeInternal, but your
method is way too complex.
If you study Envelope class, you'll notice that EmptyGeometry envelopes
are already managed by this class, so that the following few lines
should do what you want :
public Envelope getEnvelop
I'll get a patch ready for OJ when I have unit tested the method.
Thanks for the review Michael and Larry.
While we are on the topic, could you guys look at the getCenterOfMass
method in the same class. Its supposed to act like the
Geometry.getCentroid method, but for a group of Feature objects.
Yes, you are right. The getCoordinate() only works when looping through a
single feature's points.
Larry
On Wed, Jun 24, 2009 at 12:12 PM, Sunburned Surveyor <
sunburned.surve...@gmail.com> wrote:
> Thanks for the responses Larry and Michael. I have attached a text
> file with my modified metho
Thanks for the responses Larry and Michael. I have attached a text
file with my modified method. (Note: There are other changes to my
method that I would not include in the patch.) I believe that the use
of getCoordinate method should be replaced with the
getEnvelopeInternal method.
But I could be
Hi SS,
If you are talking about this code, it looks like it works to me:
public static Envelope getEnvelopeForFeatures(Feature[] features){
Envelope env = null;
Feature feat;
for (int i=0; i
> Hi,
> > I believe there may be a bug in the getEnvelopeForFeatures method
Hi,
> I believe there may be a bug in the getEnvelopeForFeatures method of
> the FeatureCollectionTools class. It uses the Geometry.getCoordinate
> method when it should use the Geometry.getEnvelopeInternal method.
> This may result in the calculation of an envolope that does not
> include the enve
I believe there may be a bug in the getEnvelopeForFeatures method of
the FeatureCollectionTools class. It uses the Geometry.getCoordinate
method when it should use the Geometry.getEnvelopeInternal method.
This may result in the calculation of an envolope that does not
include the envelope of all fe
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