Infolayer's Intersection
The interface "Infolayer's Intersection" lists all the IL's (thematic and
cadastral, digital and network) and also allows the selection of the IL's that
will be intersected.
The IL is selected on the list, to deselect it just click on it again. Between
parenthesis we have the name of the category to which the IL belongs, for we
can have IL's with same names but in different Categories.
Following we present the fields that should be filled in on the interface:
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In Object Category...
you can select the Category of the object where the output objects will be
created
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In Infolayer Category...
you can select the cadastral Category where the output IL will be created
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In IL:
you type in the name of the IL to be created
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In Bounding Box...
you can define the rectangle of the output IL. In case the user doesn't define
it, the rectangle of the active IL is used by default.
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In Adjust Factor: you can define the tolerance, in meters, of
the minimum distance between lines for intersection calculations.
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In Polygon Minimal Area: you can define the area, in square meters,
of the smallest polygon to be generated.
Infolayer's Intersection: Concepts
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The output will always be a cadastral IL, where the attributes of the output
objects will be defined with the names of the input IL's, and the attributes
will always be of the type text.
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In the case of cadastral IL's the created attribute name is the juxtaposition
of the name of the IL with the name of the category of the object present in
this IL.
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All the attribute names will be created with the prefix "IL".
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An object will be created for each polygon generated by the intersection of
several input IL's.
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The value of the attribute will be the name of the class or the object label as
found in the corresponding IL.
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The label of the object created will be the juxtaposition of the id of
the created IL with the id of the polygon to which it is associated.
In case one of the input IL's present the representation Ponto2d, or only
lines, another output IL will be created with the extension "_pt".
This IL will contain the points found in the input IL's, or the intersection
points between the lines and one object associated to each point and with the
attributes associated to each input IL at that location.
In case one of the IL's is a numeric grid the attribute associated to the points
of such grid is the value obtained from a bilinear interpolation.
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