grid2view_lu u vGRID2VIEW_LU(nged)
NAME
grid2view_lu - convert grid xy to view coordinates (local units)
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SYNOPSIS
DESCRIPTION
The grid2view_lu command converts a 2D grid offset (in local units) into 3D view-space coordinates (also in local units). The two arguments u and v are the horizontal and vertical pixel-like grid offsets from the projected model origin. The Z component is treated as 0.
The command projects the model origin into view space, scales it by the current view scale and unit conversion factors, then adds the grid offset to produce a 3D view-space vector. The result is returned as a space-separated 3-element vector.
The inverse operation is view2grid_lu.
EXAMPLES
Example 1. Convert a grid offset to view coordinates
mged> grid2view_lu 50 25
Returns the 3D view-space coordinates corresponding to a 2D grid offset of (50, 25) local units 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