用粒距离概念扩展二元定性方向演算：隐藏特征连接
Extending Binary Qualitative Direction Calculi with a Granular Distance Concept: Hidden Feature Attachment
摘要：
在本文中，我们介绍了一种方法来扩展二进制定性方向演算与可调粒度像OPRAM或星演算与粒度距离的概念。这种方法类似于用内部参考方向扩展点以得到有向点的概念，有向点是OPRAM演算中的基本实体。即使空间对象是从几何的角度来看，无穷小的点，当地可用的参考措施。在OPRAM的情况下，附加参考方向。同样的原理也适用于称为高程的局部参考距离。将参照特征附着到点的原理称为隐藏特征附着。
英文摘要：
In this paper we introduce a method for extending binary qualitative direction calculi with adjustable granularity like OPRAm or the star calculus with a granular distance concept. This method is similar to the concept of extending points with an internal reference direction to get oriented points which are the basic entities in the OPRAm calculus. Even if the spatial objects are from a geometrical point of view infinitesimal small points locally available reference measures are attached. In the case of OPRAm, a reference direction is attached. The same principle works also with local reference distances which are called elevations. The principle of attaching references features to a point is called hidden feature attachment.
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