Signature
glRectd(
GLdouble (
x1
)
,
GLdouble (
y1
)
,
GLdouble (
x2
)
,
GLdouble (
y2
)
)-> void
glRectdv(
const GLdouble * (
v1
)
,
const GLdouble * (
v2
)
)-> void
glRectf(
GLfloat (
x1
)
,
GLfloat (
y1
)
,
GLfloat (
x2
)
,
GLfloat (
y2
)
)-> void
glRectfv(
const GLfloat * (
v1
)
,
const GLfloat * (
v2
)
)-> void
glRecti(
GLint (
x1
)
,
GLint (
y1
)
,
GLint (
x2
)
,
GLint (
y2
)
)-> void
glRectiv(
const GLint * (
v1
)
,
const GLint * (
v2
)
)-> void
glRects(
GLshort (
x1
)
,
GLshort (
y1
)
,
GLshort (
x2
)
,
GLshort (
y2
)
)-> void
glRectsv(
const GLshort * (
v1
)
,
const GLshort * (
v2
)
)-> void
Parameters
| Variables | Description |
|---|
|
x1, y1
|
Specify one vertex of a rectangle.
|
|
x2, y2
|
Specify the opposite vertex of the rectangle.
|
|
v1
|
Specifies a pointer to one vertex of a rectangle.
|
|
v2
|
Specifies a pointer to the opposite vertex of the rectangle.
|
Description
glRect
supports efficient specification of rectangles as two corner points.
Each
rectangle command takes four arguments,
organized either as two consecutive pairs of
coordinates
or as two pointers to arrays,
each containing an
pair.
The resulting rectangle is defined in the
plane.
glRect
(
x1
,
y1
,
x2
,
y2
)
is exactly equivalent to the following sequence:
glBegin(
GL_POLYGON
);
glVertex2(
x1
,
y1
);
glVertex2(
x2
,
y1
);
glVertex2(
x2
,
y2
);
glVertex2(
x1
,
y2
);
glEnd();
Note that if the second vertex is above and to the right of the first vertex,
the rectangle is constructed with a counterclockwise winding.
Errors
GL_INVALID_OPERATION
is generated if
glRect
is executed between the execution of
glBegin
and the corresponding execution of
glEnd
.
Sample Code References
The following code samples have been found which appear to reference the
functions described here. Take care that the code may be old, broken or not
even use PyOpenGL.
