[udig-devel] How can we find intersection of two geometries?

[Jesse Eichar]

Look at the JTS API.  All the geometries are JTS geometries.  If I  
remember correctly there is an intersection method or something like  
that that will create the intersected geometry.  Then you have to  
create a new feature with that geometry.  Here's some pseudo code:

Geometry geom1 = feature1.getDefaultGeometry();
Geometry geom2 = feature2.getDefaultGeometry();
Geometry finalGeom = geom1.intersection(geom2);
FeatureTYpe type = feature1.getFeatureType();

Feature newFeature = type.createFeature( feature1.getAttributes() );
newFeatures.setDefaultGeometry( newFeature );



This uses the attributes from feature1 as the attributes for the new  
feature.

Jesse

On Apr 4, 2007, at 10:02 AM, Sergiy Doroshenko wrote:

> Hi all!
>
> How can we create new feature from given one by intersecting its
> geometry by another geometry? For example, split given feature by
> rectangular grid and create new feature for every peace - in this case
> we need to find intersection of multipolygon and rectangles.
>
> Is there some udig's or geotools' instrument, or this geometrical
> operation can be done only with some 3d party libraries?
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