本文整理汇总了Python中opengltk.OpenGL.GL.glBlendFunc方法的典型用法代码示例。如果您正苦于以下问题：Python GL.glBlendFunc方法的具体用法？Python GL.glBlendFunc怎么用？Python GL.glBlendFunc使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类opengltk.OpenGL.GL的用法示例。
在下文中一共展示了GL.glBlendFunc方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: redraw
# 需要导入模块: from opengltk.OpenGL import GL [as 别名]
# 或者: from opengltk.OpenGL.GL import glBlendFunc [as 别名]
def redraw(self):
""" redraw the Material editor opengl sphere that shows the effect
of the modifications
"""
if __debug__:
if hasattr(DejaVu, 'functionName'): DejaVu.functionName()
self.tk.call(self._w, 'makecurrent')
GL.glClearColor(0,0,0,0)
self.initProjection()
self.Configure()
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
""" draw the black background squares """
GL.glDisable( GL.GL_LIGHTING )
GL.glColor3f( 0.1, 0.1, 0.1 )
GL.glBegin(GL.GL_QUADS)
GL.glVertex3f(-2, 0, 2); GL.glVertex3f(-2, 2, 2)
GL.glVertex3f( 0, 2, 2); GL.glVertex3f( 0, 0, 2)
GL.glEnd()
GL.glBegin(GL.GL_QUADS)
GL.glVertex3f( 0,-2, 2); GL.glVertex3f( 0, 0, 2)
GL.glVertex3f( 2, 0, 2); GL.glVertex3f( 2,-2, 2)
GL.glEnd()
""" draw the grey background squares """
GL.glColor3f( 0.3, 0.3, 0.3 )
GL.glBegin(GL.GL_QUADS)
GL.glVertex3f(-2,-2, 2); GL.glVertex3f(-2, 0, 2)
GL.glVertex3f( 0, 0, 2); GL.glVertex3f( 0,-2, 2)
GL.glEnd()
GL.glBegin(GL.GL_QUADS)
GL.glVertex3f( 0, 0, 2); GL.glVertex3f( 0, 2, 2)
GL.glVertex3f( 2, 2, 2); GL.glVertex3f( 2, 0, 2)
GL.glEnd()
""" enable the sphere transparancy """
GL.glEnable(GL.GL_BLEND)
GL.glDepthMask(GL.GL_FALSE)
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA)
""" draw the sphere """
#GL.glEnable(GL.GL_LIGHTING)
if self.viewer is not None:
self.viewer.enableOpenglLighting()
self.setMaterial()
extractedGlutSolidSphere(1.6, 30, 30, 0)示例2: drawLegendOnly
# 需要导入模块: from opengltk.OpenGL import GL [as 别名]
# 或者: from opengltk.OpenGL.GL import glBlendFunc [as 别名]
def drawLegendOnly(
fullWidth,
fullHeight,
ramp,
verticalLegend=True,
roomLeftToLegend=0,
roomBelowLegend=50,
legendShortSide=10,
legendLongSide=150,
interpolate=True,
selected=False,
tile=None,
):
if ramp is None or len(ramp) == 0:
return
if tile is not None and selected is True:
selected = False
# deducted values
if verticalLegend is True:
lRoomToLegendCloseLongSide = roomLeftToLegend
lRoomToLegendCloseShortSide = roomBelowLegend
if legendShortSide < 1:
legendShortSide = 1
if legendLongSide < 1:
legendLongSide = 1
else:
lRoomToLegendCloseLongSide = roomBelowLegend
lRoomToLegendCloseShortSide = roomLeftToLegend
if legendShortSide < 1:
legendShortSide = 1
if legendLongSide < 1:
legendLongSide = 1
lRoomToLegendFarLongSide = lRoomToLegendCloseLongSide + legendShortSide
GL.glMatrixMode(GL.GL_PROJECTION)
GL.glPushMatrix()
GL.glLoadIdentity()
if tile is None:
GL.glOrtho(0, float(fullWidth), 0, float(fullHeight), -1, 1)
else:
GL.glOrtho(float(tile[0]), float(tile[1]), float(tile[2]), float(tile[3]), -1, 1)
GL.glMatrixMode(GL.GL_MODELVIEW)
GL.glPushMatrix()
GL.glLoadIdentity()
GL.glDisable( GL.GL_LIGHTING )
GL.glPolygonMode(GL.GL_FRONT, GL.GL_FILL)
GL.glDisable(GL.GL_DEPTH_TEST)
GL.glDepthMask(GL.GL_FALSE)
if len(ramp[0]) == 4: # there are alpha values, draw checkered bg
GL.glEnable(GL.GL_BLEND)
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA)
#draw a bunch of quads as background
lCheckerSquareSize = legendShortSide * .5
if lCheckerSquareSize != 0:
nbquads = int(legendLongSide / lCheckerSquareSize)
else:
nbquads = 1
c1 = ( 0.1, 0.1, 0.1 )
c2 = ( 0.3, 0.3, 0.3 )
c = c1
x2 = None
for i in range(nbquads+1):
GL.glColor3fv(c)
if i==nbquads and nbquads != 0:
x1=x2
x2=legendLongSide
else:
x1 = i*lCheckerSquareSize
x2 = min (x1+lCheckerSquareSize, legendLongSide)
GL.glBegin(GL.GL_QUADS)
if verticalLegend is True:
GL.glVertex2f(float(lRoomToLegendCloseLongSide),
float(lRoomToLegendCloseShortSide + x1))
GL.glVertex2f(float(lRoomToLegendCloseLongSide+lCheckerSquareSize),
float(lRoomToLegendCloseShortSide + x1))
GL.glVertex2f(float(lRoomToLegendCloseLongSide+lCheckerSquareSize),
float(lRoomToLegendCloseShortSide + x2))
GL.glVertex2f(float(lRoomToLegendCloseLongSide),
float(lRoomToLegendCloseShortSide + x2))
else:
GL.glVertex2f(float(lRoomToLegendCloseShortSide + x2),
float(lRoomToLegendCloseLongSide))
GL.glVertex2f(float(lRoomToLegendCloseShortSide + x2),
float(lRoomToLegendCloseLongSide+lCheckerSquareSize))
GL.glVertex2f(float(lRoomToLegendCloseShortSide + x1),
float(lRoomToLegendCloseLongSide+lCheckerSquareSize))
GL.glVertex2f(float(lRoomToLegendCloseShortSide + x1),
float(lRoomToLegendCloseLongSide))
GL.glEnd()
if c==c1:
c=c2
else:
#.........这里部分代码省略.........
示例3: drawLegendLabelName
# 需要导入模块: from opengltk.OpenGL import GL [as 别名]
# 或者: from opengltk.OpenGL.GL import glBlendFunc [as 别名]
#.........这里部分代码省略.........
else:
lPt1 = (-fontScale+lRoomToLegendCloseShortSide-lNameWidth,
-fontScale+lRoomToLegendCloseLongSide-lMaxLabelsHeight,
0)
lPt2 = (fontScale+lRoomToLegendFarShortSide+lUnitWidth,
-fontScale+lRoomToLegendCloseLongSide-lMaxLabelsHeight,
0)
lPt3 = (fontScale+lRoomToLegendFarShortSide+lUnitWidth,
lRoomToLegendFarLongSide,0)
lPt4 = (-fontScale+lRoomToLegendCloseShortSide-lNameWidth,
lRoomToLegendFarLongSide,0)
if selected is True:
labelColor2 = (.5, .5, .5)
else:
labelColor2 = labelColor
GL.glMatrixMode(GL.GL_PROJECTION)
GL.glPushMatrix()
GL.glLoadIdentity()
if tile is None:
GL.glOrtho(0, float(fullWidth), 0, float(fullHeight), -1, 1)
else:
GL.glOrtho(float(tile[0]), float(tile[1]), float(tile[2]), float(tile[3]), -1, 1)
GL.glMatrixMode(GL.GL_MODELVIEW)
GL.glPushMatrix()
GL.glLoadIdentity()
GL.glDisable( GL.GL_LIGHTING )
GL.glPolygonMode(GL.GL_FRONT, GL.GL_FILL )
if len(backgroundColor) == 4:
GL.glEnable(GL.GL_BLEND)
GL.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA)
#because of an unexplained bug on michel's laptop,
#we don't draw the background when there is no frame
#(so michel has a way to manage the legend)
if frame is True:
#draw transparent background
GL.glDepthMask(GL.GL_FALSE)
if len(backgroundColor) == 3:
GL.glColor3fv(backgroundColor)
else:
GL.glColor4fv(backgroundColor)
GL.glBegin(GL.GL_QUADS)
GL.glVertex3fv(lPt1)
GL.glVertex3fv(lPt2)
GL.glVertex3fv(lPt3)
GL.glVertex3fv(lPt4)
GL.glEnd()
GL.glDepthMask(GL.GL_TRUE)
#draw frame
if frame is True:
GL.glPolygonMode(GL.GL_FRONT, GL.GL_LINE )
GL.glLineWidth(1)
GL.glColor3fv(labelColor2)
GL.glBegin(GL.GL_QUADS)
GL.glVertex3fv(lPt1)
GL.glVertex3fv(lPt2)
GL.glVertex3fv(lPt3)
GL.glVertex3fv(lPt4)
GL.glEnd()
GL.glPolygonMode(GL.GL_FRONT, GL.GL_FILL)