gsell(3g) — AIX PS/2 1.2.1



GSELL(3g,L)                 AIX Technical Reference                 GSELL(3g,L)



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gsell



PURPOSE

Draws an ellipse.

C SYNTAX

int gsell_ (cx, cy, ma, mi, ang)

int *cx, *cy, *ma, *mi, *ang;

FORTRAN SYNTAX

INTEGER function gsell (cx, cy, ma, mi, ang)

INTEGER cx, cy, ma, mi, ang

PASCAL SYNTAX

FUNCTION gsell_ (

VAR cx, cy, ma, mi, ang : INTEGER
): INTEGER [PUBLIC];

DESCRIPTION

The gsell subroutine draws an ellipse of the specified axes and angle.  The
axes are expressed in number of pixels.

The angle specifications are given in tenths of degrees, from 0 to 3600.
Values outside this range cause the gsell subroutine to fail.

The relevant attributes are:

  o Color map
  o Plane mask
  o Line color index
  o Line style
  o Logical operation.

Parameters

cx, cy   Define the coordinates of the center of the ellipse.

ma, mi   Define half of the nonzero major and minor axes of the ellipse.






Processed November 7, 1990        GSELL(3g,L)                                 1



GSELL(3g,L)                 AIX Technical Reference                 GSELL(3g,L)



ang      Defines the angle between the major axis and the x-axis.  If it is 0,
         the major axis is on the x-axis and the minor axis is on the y-axis.
         The angle is expressed in tenths of degrees, from 0 to 3600.

RETURN VALUE

GS_SUCC  Successful.
GS_CORD  Invalid coordinate.
GS_ELMM  Invalid major or minor axis.
GS_INAC  Virtual terminal inactive.
GS_ANGL  Invalid angle.
GS_NMEM  Insufficient resources.











































Processed November 7, 1990        GSELL(3g,L)                                 2

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