CERN Program Library Long Writeup W5013 - CERNLIB ...

e drawn. NAMNUM contain the arrays lnames and lnumbs, identifying the path, in pairs and separated
by commas; for example (with n=2) : ’lname(1),lnumbs(1),lname(2),lnumbs(2) ’ CHNRS is the name of
the reference system used: MARS for MAster Reference System or DRS for Daughter Reference System.
NRS=0 for MARS or NRS〈〉0 for DRS If optional parameters are missing, the current values in /GCDRAW/
are taken.
3.6 DCUT name caxis cutval [ u0 v0 su sv ]
NAME C “Volume name”
CAXIS C “Axis value”
CUTVAL R “Cut plane distance from the origin along the axis”
U0 R “U-coord. (horizontal) of volume origin”
V0 R “V-coord. (vertical) of volume origin”
SU R “Scale factor for U-coord.”
SV R “Scale factor for V-coord.”
Possible CAXIS values are:
X
Y
Z
CALL GDRAWC(name,iaxis,cutval,u0,v0,su,sv)
The cut plane is normal to caxis (X,Y,Z), corresponding to iaxis (1,2,3), and placed at the distance cutval
from the origin. The resulting picture is seen from the the same axis. If optional parameters are missing, the
current values in /GCDRAW/ are taken. When HIDE Mode is ON, it is possible to get the same effect with
the CVOL/BOX command.
3.7 DXCUT name cutthe cutphi cutval [ theta phi u0 v0 su sv ]
NAME C “Volume name”
CUTTHE R “Theta angle of the line normal to cut plane” R=0.:360.
CUTPHI R “Phi angle of the line normal to cut plane” R=0.:360.
CUTVAL R “Cut plane distance from the origin along the axis”
THETA R “Viewing angle theta (for 3D projection)” R=0.:360.
PHI R “Viewing angle phi (for 3D projection)” R=0.:360.
U0 R “U-coord. (horizontal) of volume origin”
V0 R “V-coord. (vertical) of volume origin”
SU R “Scale factor for U-coord.”
SV R “Scale factor for V-coord.”
CALL GDRAWX(name,cutthe,cutphi,cutval,theta,phi,u0,v0,su,sv)
The cut plane is normal to the line given by the cut angles cutthe and cutphi and placed at the distance cutval
from the origin. The resulting picture is seen from the viewing angles theta,phi. If optional parameters are
missing, the current values in /GCDRAW/ are taken.
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