GLenum query,
                                   GLdouble *v )
       void GLAPIENTRY glGetMapfv( GLenum target,
                                   GLenum query,
                                   GLfloat *v )
       void GLAPIENTRY glGetMapiv( GLenum target,
                                   GLenum query,
                                   GLint *v )

PARAMETERS
       target  Specifies  the  symbolic  name  of  a  map.  Accepted values are
               GL_MAP1_COLOR_4,         GL_MAP1_INDEX,          GL_MAP1_NORMAL,
               GL_MAP1_TEXTURE_COORD_1,                GL_MAP1_TEXTURE_COORD_2,
               GL_MAP1_TEXTURE_COORD_3,                GL_MAP1_TEXTURE_COORD_4,
               GL_MAP1_VERTEX_3,       GL_MAP1_VERTEX_4,       GL_MAP2_COLOR_4,
               GL_MAP2_INDEX,     GL_MAP2_NORMAL,      GL_MAP2_TEXTURE_COORD_1,
               GL_MAP2_TEXTURE_COORD_2,                GL_MAP2_TEXTURE_COORD_3,
               GL_MAP2_TEXTURE_COORD_4, GL_MAP2_VERTEX_3, and GL_MAP2_VERTEX_4.

       query   Specifies which parameter to return.  Symbolic  names  GL_COEFF,
               GL_ORDER, and GL_DOMAIN are accepted.

       v       Returns the requested data.

DESCRIPTION
       glMap1 and glMap2 define evaluators.  glGetMap returns evaluator parame‐
       ters.  target chooses a map, query selects a specific parameter,  and  v
       points to storage where the values will be returned.

       The  acceptable  values  for  the  target parameter are described in the
       glMap1 and glMap2 reference pages.

       query can assume the following values:

       GL_COEFF       v returns the control points for the evaluator  function.
                      One-dimensional  evaluators  return order control points,
                      and two-dimensional evaluators return uorder×vorder  con‐
                      trol  points.   Each  control point consists of one, two,
                      three, or four integer, single-precision  floating-point,
                      or  double-precision  floating-point values, depending on
                      the type of the evaluator.   The  GL  returns  two-dimen‐
                      sional  control  points  in row-major order, incrementing
                      the uorder index quickly and the vorder index after  each
                      row.   Integer  values,  when  requested, are computed by
                      rounding the internal floating-point values to the  near‐
                      est integer values.

       GL_ORDER       v  returns  the order of the evaluator function.  One-di‐
                      mensional evaluators return a single  value,  order.  The
                      initial  value  is  1.  Two-dimensional evaluators return
                      two values, uorder and vorder. The initial value is 1,1.


       GL_INVALID_OPERATION  is  generated  if glGetMap is executed between the
       execution of glBegin and the corresponding execution of glEnd.

SEE ALSO
       glEvalCoord, glMap1, glMap2

                                                                   GLGETMAP(3G)