GLintcount, GLfloat*data, GLintstride, GLenumtype)

**eqn not supported**

*nurb*- Specifies the NURBS object (created with
**gluNewNurbsRenderer**). *count*- Specifies the number of points on the curve.
*data*- Specifies an array containing the curve points.
*stride*- Specifies the offset (a number of single-precision floating-point values) between points on the curve.
*type*- Specifies the type of curve. Must be either
**GLU_MAP1_TRIM_2**or**GLU_MAP1_TRIM_3**.

If *type* is
**GLU_MAP1_TRIM_2**, then it describes a curve in two-dimensional (*u* and *v*)
parameter space. If it is **GLU_MAP1_TRIM_3**, then it describes a curve in
two-dimensional homogeneous (*u*, *v*, and *w*) parameter space. See the **gluBeginTrim**
reference page for more information about trimming curves.