ESSE 3600 Chapter Notes - Chapter 5: Binary Large Object, Relative Direction, Coordinate System

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Lecture 5: list and explain types of vector data models. Types of vector data models are relation-based and object-based. Relation-based vector models are spaghetti data, topology data, and surface model. Object-based vector models are spatial features[objects], properties[attributes], and class and class relations. In spaghetti vectors, line ends don"t meet and there is a lack of connections. This model stores the name of every object followed by the coordinates the object is composed of. Every object is described independently of the others. In a spaghetti model, points have umbers, lines are ordered strings of points that are associated with a searchable point identification number, and polygons are stored as closed loops of coordinate pairs. The topology vector model is a field of mathematics that uses diagrams or graphs to study the arrangements of geometric objects and the relationships between objects. Topological relationships are invariant under elastic deformation, without tear or merge.

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