To Be Covered
Some basic concepts of solid model (Data types) Geometric elements
Topology
Two solid model reprentation schemes Graph-bad model
Boolean model
家装公司哪家好Some solid modelling methods
Basic Concepts of Solid Model
A solid model has two important ts of information: geometry and topology
The geometry is a group of geometric elements: faces, edges, and vertices.
A face/edge is governed by its mathematical equations
A vertex is specified by its coordinates(x, y, z).歌曲一生无悔
动脉硬化的原因
The topology specifies the relationship or connectivity among the geometric elements
A solid model is bounded by its faces;
A face is bounded by its edges;抱娃娃
An edge is bounded by two vertices.
An Example风景的图片
俘虏是什么意思
Reprentation Schemes: Graph-Bad Models Has topological structure, with data pointers linking together an object’s faces, edges, and vertices.
A solid object: a list of the object’s faces and their respective
surface equations.
立春日感怀The edges of the faces: curve equations, with pointers to their end-point vertices and adjoining faces.
The vertices: lists of coordinates, with pointers to the edges
meeting at each vertex.
Two kinds of information –the pointers defining the topology or connectivity between vertices, edges, and faces and numerical data defining curve and surface equations and vertex coordinates.
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