6.2.2 Subroutines

vx, vy = NumRu::DCL.stftrn(ux,uy) Basic transformation
NumRu::DCL.ststrn(itr,cxa,cya,vxoff,vyoff) Sets the parameters for basic transformation
tx, ty = NumRu::DCL.stfrot(ux,uy) Rotation of a map coordinate
NumRu::DCL.stsrot(theta,phi,psi) Sets the parameters for rotation of a map coordinate
rx, ry = NumRu::DCL.stfrad(x,y) Unit transformation of angle
NumRu::DCL.stsrad(lxdeg,lydeg) Sets parameters for unit transformation of angle.


There are also routines for inverse transformations with i as the 3rd character in the routine name, and parameter inquiry routines with q  as the 3rd character.