view2grid_lu x y zVIEW2GRID_LU(nged)
NAME
view2grid_lu - convert view xyz to grid coordinates (local units)
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SYNOPSIS
DESCRIPTION
The view2grid_lu command converts 3D view-space coordinates (in local units) into a 2D grid offset (also in local units). The three arguments x y z are view-space coordinates in local units. The result is a 2-element u v string — only the X and Y components of the grid displacement from the projected model origin are returned; Z is discarded.
The command projects the model origin into view space, scales it, subtracts from the input view point to get the displacement, then returns the X and Y components as the 2D grid offset.
The inverse operation is grid2view_lu.
EXAMPLES
Example 1. Convert a view-space point to a 2D grid offset
mged> view2grid_lu 50 25 0
Returns the 2D grid offset u v corresponding to the view-space point (50, 25, 0) in local units, measured from the projected model origin.
AUTHOR
BRL-CAD Team
BUG REPORTS
Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org