Qualified topological relations between spatial objects with possible vague shape

نویسندگان

  • Lotfi Bejaoui
  • François Pinet
  • Yvan Bédard
  • Michel Schneider
چکیده

Qualified topological relations between spatial objects with possible vague shape L. Bejaoui abcd; F. Pinet c; Y. Bedard ab; M. Schneider cd a Department of Sciences géomatiques, Laval University, Quebec city, Que., Canada b Industrial Research Chair in Geospatial Databases for Decision Support, Laval University, Quebec city, Que., Canada c Cemagref-Clermont-Ferrand, France d Department of Computer Sciences, Blaise-Pascal University, Clermont-Ferrand, France

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An Adverbial Approach for the Formal Specification of Topological Constraints Involving Regions with Broad Boundaries

Topological integrity constraints control the topological properties of spatial objects and the validity of their topological relationships in spatial databases. These constraints can be specified by using formal languages such as the spatial extension of the Object Constraint Language (OCL). Spatial OCL allows the expression of topological constraints involving crisp spatial objects. However, ...

متن کامل

مدل‌سازی روابط توپولوژیک سه بعدی فازی در محیط GIS

Nowadays, geospatial information systems (GIS) are widely used to solve different spatial problems based on various types of fundamental data: spatial, temporal, attribute and topological relations. Topological relations are the most important part of GIS which distinguish it from the other kinds of information technologies. One of the important mechanisms for representing topological relations...

متن کامل

Topological Analysis between Bodies with Holes

The topological relation is one of the most important spatial relations. Analysis of spatial relation has great practical value. The possible topological relations between 3D simple body objects can be analyzed using 9-intersection model. An algorithm is proposed to analyze the topological relations between body objects. It decomposes the complicated objects into simple objects, so it can get t...

متن کامل

Definition and implementation of vague objects ?

Vagueness occurs often in spatial information. A concept is vague if objects exist that cannot be classified either to the concept or to its complement. Vagueness arises in the presence of borderline cases. Examples are soil maps, geological maps, forestry inventories, and vegetation maps. Soil classes, or vegetation classes are such that they cannot be defined sharply. The change from one clas...

متن کامل

Topological Reasoning for Identifying a Complete Set of Topological Predicates between Vague Spatial Objects

Current implementations of spatial databases are not capable of handling data that is intrinsically indeterminate or vague. The goal of the Vague Spatial Algebra (VASA) project is to define concepts and implementations that will address this problem. In this paper we further develop work on topological predicates between vague spatial objects. The new developments make use of spatial reasoning ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • International Journal of Geographical Information Science

دوره 23  شماره 

صفحات  -

تاریخ انتشار 2009