Vector Processing Plugin
The Vector Processing plugin contains several processing algorithms applied to vector data.
Such as Buffer, Dissolve, Geometric Operations and Intersection.
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Buffer - The Buffer
is a spatial operation that can be applied to a single layer.
The buffer zone may be defined as an area generated around
an object with a predetermined distance.
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Difference - The Difference
is spatial operation and is applied for two layers.
This operation is intended to create a new layer composed of the difference between geometries of two layers.
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Dissolve - The Dissolve
operation is applied to a single layer and a chosen group of attributes that can be summarized. The idea is
to generate a new layer with summarized information. The geometries of
each group are dissolved through the UNION
spatial operation and the attributes can be summarized using of the
dissolve operation:
sum,
count,
maximum,
minimum,
average
and so on.
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Geometric Operations - The Geometric Operations
available are
Centroid, Convex Hull and
Minimum Bounding Rectangle (MBR).
These operations return a new geometry as a result. In addition there is also basic operations such as
Perimeter, Area and
Lenght,
returning only a numeric value for each geometry.
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Identity - The Identity
is spatial operation and is applied for two layers.
This operation is intended to create a new layer composed of the difference and the intersection between geometries of two layers.
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Intersection - The Intersection
is spatial operation and is applied for two layers. One containing polygons
that form a clipping mask, and another (with any kind of representation
ex. polygons, lines, points) will be clipped. The result is a new plan
formed by the objects of the second theme in the intersection with the clipping mask.
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Line to Polygon - The Line to Polygon
operation is applied to a single layer composed of lines.
This operation is intended to create a new layer composed of polygons by means of a layer composed of lines.
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Merge - The Merge
is spatial operation and is applied for two layers.
This operation makes the insertion of a layer data in an other layer
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Polygon to Line - The Polygon to Line
operation is applied to a single layer composed of polygons.
This operation is intended to create a new layer composed of lines by means of a layer composed of polygons.
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Union - The Union
is spatial operation and is applied for two layers.
This operation makes an union between two layer considering the intersection.