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#
# copyright_notice
#
"""glu wrappers
"""
import numpy
from opengltk import util
from opengltk.extent import _gllib, _glulib
from opengltk.util import gltypmap, revtypmap ,\
GLdouble, GLfloat, GLint, readModProjView
from opengltk.ccallback import swigptrcallback
import gl_wrapper
def gluBuild1DMipMaps( target, component, format, data):
"""
target - GLenum
component - GLint
format - GLenum
data - numpy array
"""
_glulib.gluBuild1DMipMaps( target, component, len( data), format,
gltypmap[ data.dtype.char], data)
def gluBuild2DMipMaps( target, component, width, format, data):
"""
target - GLenum
component - GLint
width - GLsizei
format - GLenum
data - numpy array
"""
lendat = len( data)
if lendat % width:
raise TypeError( (width, len( data)),
'len( data) nota multiple of "width"')
_glulib.gluBuild2DMipMaps( target, component, width, lendat/width, format,
gltypmap[ data.dtype.char], data)
def gluGetNurbsProperty( nurb, property):
"""
nurb - GLUnurbs*
property - GLenum
return - GLfloat
"""
data = numpy.zeros( 1, 'f')
_glulib.gluGetNurbsProperty( nurb, property, data)
return data[ 0]
def gluGetTessProperty( tess, property):
"""
tess - GLUtesselator*
property - GLenum
return - GLdouble
"""
data = numpy.zeros( 1, 'd')
_glulib.gluGetTessProperty( nurb, property, data)
return data[ 0]
def gluLoadSamplingMatrices( nurb, model, perspective, view):
"""
nurb - GLUnurb
model - sequence of 16 floats
perspective - sequence of 16 floats
view - sequence of 4 floats
"""
model, perspective, view = readModProjView( model, perspective, view)
_glulib.gluLoadSamplingMatrices( nurb, model, perspective, view)
def gluNurbsCallback( element, which, callback):
return _glulib.gluNurbsCallback( element, which,
swigptrcallback( util,
('void', ['GLenum']),
callback))
def gluNurbsCurve( nurb, type, knots, order, control, stride):
"""
nurb - GLUnurbs
type - GLenum
knots - seq( GLfloat)
order - GLint
control - seq( GLfloat)
stride - GLint
"""
lknot = len( knots)
assert stride
if lknot % stride:
raise TypeError( (len( knots), stride),
"(len( knots), stride) not compatible")
nknot = lknot / stride
if len( control) != nknot - order:
raise TypeError( (len( knots), order, stride, len( control)),
'(len( knots), order, stride, len( control))'
' not compatible')
_glulib.gluNurbsCurve( nurb, nknot, knots, stride,
control, order, type)
def gluNurbsSurface( nurb, type, sKnots, tKnots, sOrder, tOrder, control,
sStride, tStride):
"""
nurb - GLUnurbs
type - GLenum
sKnots, tKnots - seq( GLfloat)
sOrder, tOrder - GLint
control - seq( GLfloat)
sStride, tStride - GLint
"""
assert sStride
assert tStride
lsknot = len( sKnots)
if lsknot % sStride:
raise TypeError( (len( sKnots), sStride),
"(len( sKnots), sStride) not compatible")
nsknot = lsknot / sStride
ltknot = len( tKnots)
if ltknot % sStride:
raise TypeError( (len( tKnots), sStride),
"(len( tKnots), sStride) not compatible")
ntknot = ltknot / sStride
if len( control) != (nsknot - sOrder)*(ntknot - tOrder):
raise TypeError( (len( control), (nsknot, sOrder), (ntknot, tOrder)),
'(len( control), (nsknot, sOrder), (ntknot, tOrder))'
' not compatible')
_glulib.gluNurbsSurface( nurb, nsknot, sKnots, ntknot, tKnots,
sStride, tStride, control, sOrder, tOrder, type)
def gluPickMatrix( x, y, delX, delY, view):
"""
x, y, delX, delY - GLdouble
"""
if len( view) != 4:
raise TypeError( view, len( view), '4 expected')
if not isinstance(view , numpy.ndarray):
view = numpy.array(view, GLint)
_glulib.gluPickMatrix( x, y, delX, delY, view)
def gluProject( obj, model, proj, view):
"""
obj - seq( 3, GLdouble)
model - seq( gl.MODELVIEW_MATRIX, GLfloat)
perspective - seq( gl.PROJECTION_MATRIX, GLfloat)
view - seq( gl.VIEWPORT, GLfloat)
return - numpy array (shape: (3,), type: GLdouble)
"""
win = numpy.zeros( 3, GLdouble)
gluProjectv( obj, model, proj, view, win[0:1], win[ 1:2], win[ 2:3])
return win
def gluProjectv( obj, model, proj, view, win):
"""
obj - seq( 3, GLdouble)
model - seq( gl.MODELVIEW_MATRIX, GLfloat)
perspective - seq( gl.PROJECTION_MATRIX, GLfloat)
view - seq( gl.VIEWPORT, GLfloat)
win - numpy array (shape: (3,), type: GLdouble): gets the new coordinates
"""
if 3 != len( obj):
raise TypeError( len( obj), "obj not 3-array")
model, proj, view = readModProjView( model, proj, view)
_glulib.gluProject( obj[ 0], obj[ 1], obj[ 2], model, proj, view,
win[0:1], win[ 1:2], win[ 2:3])
def gluPwlCurve( nurb, type, data, stride):
"""
nurb - GLUnurbs*
type - GLenum
data - seq( GLfloat)
stride - GLint
"""
assert stride
ldata = len( data)
if ldata % stride:
raise TypeError( (len( data), stride),
"len( data) not a multiple of stride")
_glulib.gluPwlCurve( nurb, len( data) / stride, data, stride, type)
def gluQuadricCallback( element, which, callback):
return _glulib.gluQuadricCallback( element, which,
swigptrcallback( util,
('void', ['GLenum']),
callback))
def gluScaleImage( format, wIn, dataIn, wOut, hOut, typeOut):
"""
format - GLenum
wIn - GLsizei
dataIn - numpy array / list
wOut, hOut - GLsizei
typeOut - GLenum
return - numpy array(shape: wOut*hOut, type; typeOut)
"""
lin = len( dataIn)
if lin % wIn:
raise TypeError( (len( dataIn), wIn),
"len( dataIn) not multiple of wIn")
gltout = typeOut
typeOut = revtypmap[ typeout]
result = numpy.zeros( wOut * hOut, typeOut)
_glulib.gluScaleImage( format,
wIn, lin / wIn, gltypmap[ dataIn.dtype.char], dataIn,
wOut, hOut, gltout, result)
return result
def gluTessCallback( element, which, callback):
return _glulib.gluTessCallback( element, which,
swigptrcallback( util,
('void', ['GLenum']),
callback))
def gluTessNormaldv( tess, normale):
"""
tess - GLUtesselator*
normale - seq( 3, GLdouble)
"""
_glulib.gluTessNormal( tess, normale[ 0], normale[ 1], normale[ 2])
def gluTessNormalfv( tess, normale):
"""
tess - GLUtesselator*
normale - seq( 3, GLfloat)
"""
_glulib.gluTessNormal( tess, normale[ 0], normale[ 1], normale[ 2])
def gluTessVertex( tess, location, data):
"""
tess - GLUtesselator*
location - seq( 3, GLdouble)
data - GLvoid*
"""
if 3 != len( location):
raise TypeError( len( location), "location not a 3-array")
_glulib.gluTessVertex( tess, location, data)
def gluUnProject( obj, model, proj, view):
"""
obj - seq( 3, GLdouble)
model - seq( gl.MODELVIEW_MATRIX, GLfloat)
perspective - seq( gl.PROJECTION_MATRIX, GLfloat)
view - seq( gl.VIEWPORT, GLfloat)
return - numpy.array ( 3, GLdouble)
"""
win = numpy.zeros( 3, GLdouble)
gluUnProjectv( obj, model, proj, view, win )
return win[:3]
def gluUnProjectv( obj, model, proj, view, win):
"""
obj - seq( 3, GLdouble)
model - seq( gl.MODELVIEW_MATRIX, GLfloat)
perspective - seq( gl.PROJECTION_MATRIX, GLfloat)
view - seq( gl.VIEWPORT, GLfloat)
win - numpy array( 3, GLdouble): gets the new coordinates
"""
if 3 != len( obj):
raise TypeError( len( obj), "obj not 3-array")
model, proj, view = readModProjView( model, proj, view)
_glulib.gluUnProject( obj[ 0], obj[ 1], obj[ 2], model, proj, view,
win[0:1], win[ 1:2], win[ 2:9])
__all__ = [
'gluBuild1DMipMaps',
'gluBuild2DMipMaps',
'gluGetNurbsProperty',
'gluGetTessProperty',
'gluLoadSamplingMatrices',
'gluNurbsCallback',
'gluNurbsCurve',
'gluNurbsSurface',
'gluPickMatrix',
'gluProject',
'gluProjectv',
'gluPwlCurve',
'gluQuadricCallback',
'gluScaleImage',
'gluTessCallback',
'gluTessNormaldv',
'gluTessNormalfv',
'gluTessVertex',
'gluUnProject',
'gluUnProjectv',
]
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