def set_scissor( rect ):
"""Calls glScissor with the size of the rectangle.
.. note:: It is up to the user to call glEnable(GL_SCISSOR_TEST).
.. note:: To undo this, call this function again with the window's size as a rectangle.
.. seealso::
Module :py:mod:`pygly.window`
Documentation of the :py:mod:`pygly.window` module.
This call can be undone by first calling
glPushAttrib( GL_SCISSOR_BIT )
and later calling glPopAttrib().
Or using the attribute context:
with attributes( GL_SCISSOR_BIT ):
set_scissor( rect )
"""
GL.glScissor(
int(rectangle.left(rect)),
int(rectangle.bottom(rect)),
int(rectangle.abs_width(rect)),
int(rectangle.abs_height(rect))
)
def aspect_ratio(rect):
"""Calculates the aspect ratio of the rectangle.
Aspect ratio is the ratio of width to height
a value of 2.0 means width is 2*height
The rectangle is in the format of Pyrr.rectangle.
Returns:
The aspect ratio of the rectangle.
"""
width = float(rectangle.abs_width(rect))
height = float(rectangle.abs_height(rect))
return width / height
def aspect_ratio( rect ):
"""Calculates the aspect ratio of the rectangle.
Aspect ratio is the ratio of width to height
a value of 2.0 means width is 2*height
The rectangle is in the format of Pyrr.rectangle.
Returns:
The aspect ratio of the rectangle.
"""
width = float(rectangle.abs_width(rect))
height = float(rectangle.abs_height(rect))
return width / height
def set_viewport(rect):
"""Calls glViewport with the dimensions of
the rectangle
In the OpenGL Legacy profile (<=2.1),
this call can be undone by first calling
glPushAttrib( GL_VIEWPORT_BIT )
and later calling glPopAttrib().
Or: using the attribute context:
with attributes( GL_VIEWPORT_BIT ):
set_viewport( rect )
The glPushAttrib / glPopAttrib functions are not available on the
OpenGL Core profile (>=3.0)
"""
GL.glViewport(int(rectangle.left(rect)), int(rectangle.bottom(rect)),
int(rectangle.abs_width(rect)),
int(rectangle.abs_height(rect)))
def set_viewport( rect ):
"""Calls glViewport with the dimensions of
the rectangle
In the OpenGL Legacy profile (<=2.1),
this call can be undone by first calling
glPushAttrib( GL_VIEWPORT_BIT )
and later calling glPopAttrib().
Or: using the attribute context:
with attributes( GL_VIEWPORT_BIT ):
set_viewport( rect )
The glPushAttrib / glPopAttrib functions are not available on the
OpenGL Core profile (>=3.0)
"""
GL.glViewport(
int(rectangle.left(rect)),
int(rectangle.bottom(rect)),
int(rectangle.abs_width(rect)),
int(rectangle.abs_height(rect))
)
def set_scissor(rect):
"""Calls glScissor with the size of the rectangle.
.. note:: It is up to the user to call glEnable(GL_SCISSOR_TEST).
.. note:: To undo this, call this function again with the window's size as a rectangle.
.. seealso::
Module :py:mod:`pygly.window`
Documentation of the :py:mod:`pygly.window` module.
This call can be undone by first calling
glPushAttrib( GL_SCISSOR_BIT )
and later calling glPopAttrib().
Or using the attribute context:
with attributes( GL_SCISSOR_BIT ):
set_scissor( rect )
"""
GL.glScissor(int(rectangle.left(rect)), int(rectangle.bottom(rect)),
int(rectangle.abs_width(rect)),
int(rectangle.abs_height(rect)))
def test_abs_width_negative(self):
result = rectangle.abs_width([[1.,2.],[-3.,-4.]])
np.testing.assert_almost_equal(result, 3., decimal=5)
def test_abs_width_negative(self):
result = rectangle.abs_width([[1.,2.],[-3.,-4.]])
np.testing.assert_almost_equal(result, 3., decimal=5)