Mesh

Meshing Point Clouds

A mesh is an approximated surfaces built from triangles (or polygons). These surfaces can be either imported or built directly from cloud data and they can be used for a wide range of purpose including simplified reference surfaces that can be used as a proxy for a sur- face’s true curvature. The vertice points used to define the triangles provide the only accurate position information which the connecting lines are used for visualization purposes.

There are a couple of different mesh formats:

Polygonized Surfaces.

Polygonized Surfaces are primarily imported CAD models of a very low resolution, although some legacy construction and editing can be done most meshing tools now use the Scan Strip Mesh.

Graphical Entities.

Graphical entities can be edited but include additional visual elements. For example a Colorized Graphical Mesh is generated from the proximity of points or point clouds to a surface the resulting feature in the tree is a Graphical Entity. This is use for visual representation only.

Scan Stripe Mesh

Scan Stripe Meshes are SA’s primary tool for working with and editing mesh representations of cloud data. They can be built from a specific Scan Stripe Cloud, much like auto-vectors built from a relationship. The probing transforms embedded within Scan Stripe Cloud can be used to provide the direction vectors necessary to make Real-time meshing possible. It also provides the ability to build finely detailed meshes from cloud data.