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Modeling Guide for 3D Objects - Part 1: Basics (Rules for Validating GML Geometries in CityGML) (view source)
Revision as of 15:03, 11 November 2013
, 15:03, 11 November 2013→gml:Polygon
* A Polygon <math>S</math> is defined by a planar Linear Ring <math>R_s</math> (exterior ring).
* A Polygon <math>S</math> is defined by a planar Linear Ring <math>R_s</math> (exterior ring).
* A polygon has exactly one exterior ring. In addition, a polygon can have <math>n\ge0</math> interior rings. These interior rings a planar Linear Rings as well. All interior rings and the exterior ring must be on the same plane (within the given tolerance).
* A polygon has exactly one exterior ring. In addition, a polygon can have <math>n\ge0</math> interior rings. These interior rings a planar Linear Rings as well. All interior rings and the exterior ring must be on the same plane (within the given tolerance).
* As interior rings define holes in the polygon, they have to be completely included in the area defined by the exterior ring. Interior rings must not overlap other Linear Rings or be included in another Linear Ring (except the exterior Linear Ring).
* As interior rings define holes in the polygon, they have to be completely included in the area defined by the exterior ring.
<table width="900px" border="0" cellspacing="0">
<table width="900px" border="0" cellspacing="0">
<tr align="left" valign="top">
<tr align="left" valign="top">
</tr>
</tr>
</table>
</table>
* Die inneren linearen Ringe dürfen nicht verschachtelt sein, d.h. kein innerer Ring liegt in dem Gebiet der Ebene, das ein anderer innerer Ring definiert.
* Interior rings must not overlap other Linear Rings or be included in another Linear Ring (except the exterior Linear Ring).
<table width="900px" border="0" cellspacing="0">
<table width="900px" border="0" cellspacing="0">
<tr align="left" valign="top">
<tr align="left" valign="top">