projectionInfo: Projection information used to retrieve 3D data from 2D...

In tunelipt/model3d: Funções para manipulação de modelos 3D.

Description

When points that belong in a plane are projected into another plane, some information is lost. This function gathers enough information from the plane thar is being projected so that given any point *belonging* to this plane can be determined from its 2D projection.

Usage

  projectionInfo(p, nn, base2d)

Arguments

p	A point belonging to the plane that is being projected
nn	A normal to the plane that is being projected
based2d	Orthonormal basis of the projection plane.

Value

Data structure that can be used to retrieve 3D data from its 2D projection.

tunelipt/model3d documentation built on Nov. 5, 2019, 10:59 a.m.