tdlnpa

Draws the projection of a line joining two points in the reference parallelogram (for use with selected TDPACK routines).

Available in version 4.3.1 and later.

Prototype

	procedure tdlnpa (
		wks  [1] : graphic,  
		uvw1 [2] : float,    
		uvw2 [2] : float     
	)

Arguments

An NCL workstation identifier for where you want to draw the surface. The wks identifier is one returned either from calling gsn_open_wks or calling create to create a Workstation object.

Float arrays of 2 elements each specifying the first and second parallelogram coordinates in the reference parallelogram.

Description

This routine is part of the low-level TDPACK package, which is a group of Fortran and C callable routines for projecting objects from a 3-dimensional coordinate system having U, V, and W axes to a 2-dimensional projection plane having X and Y axes and/or for drawing the projections of those objects. This can be referred to somewhat loosely as "drawing objects in three dimensions".

Please see the documentation on TDLNPA for a full description of this procedure.

See Also

Initialization routines: tdinit, tdpara, tdclrs

Parameter access routines: tdgetp, tdgtrs, tdsetp, tdstrs

Point transforming routines: tdprpt, tdprpa, tdprpi

Line drawing routines: tdline, tdlndp, tdlpdp, tdcurv, tdcudp

Grid drawing routines: tdgrds, tdgrid

Label drawing routines: tdlbls, tdlbla, tdlblp, tdplch

Surface drawing routines: tddtri, tdstri, tditri, tdmtri, tdttri, tdctri, tdotri, tdsort

Simplified interface routines: tdez2d, tdez3d

Examples

No examples are available for this function currently. Please see the documentation on TDLNPA for more information about this function.