Physically-Based Visualization Of Residential Building by Dezhi Liao Modeling and Simulation in the College of

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This is called colliding contact. Colliding contact requires an instantaneous change in velocity. Whenever a collision occurs, the velocity of a body undergoes a discontinuity. g. a shingle which lies on plywood with zero velocity). This is resting contact. For resting contact, the force that prevents the shingle from accelerating towards plywood needs to be computed. Essentially, this force is the weight of the shingle due to gravity (or whatever other forces due to the attachment method). 42 Constrained motion has been the object of many studies.

The properties of building components include: position, orientation, texture, lighting attributes, geometry, parent node, velocity, angular velocity, center point of mass, mass, and volume. Every sub-component of component House originated from class BuildingComponent except WoodWall class. 2 Roof Model The roof cover is made up of many shingles, most of which have rectangular shape. The roof sheath is made up of plywood sheets, most of which have rectangular shape, too. A masonry wall is made up of bricks.

To represent walls using slabs, the key step is to triangulate walls which have holes. 8 Slab definition from [ORT96] The triangulation of a simple polygon is a very old problem in computer science. The problem is: given a simple polygon in two-dimensional space, how to construct segments between the vertices of the polygon, such that the resulting figure is a collection of triangles only. A simple polygon means a polygon that does not have any intersecting edges. The polygon can be either convex or concave and may also have holes in it.