pyqtgraph/opengl/items/GLBoxItem.py
2013-12-23 11:16:39 -05:00

88 lines
2.4 KiB
Python

from OpenGL.GL import *
from .. GLGraphicsItem import GLGraphicsItem
from ...Qt import QtGui
from ... import functions as fn
__all__ = ['GLBoxItem']
class GLBoxItem(GLGraphicsItem):
"""
**Bases:** :class:`GLGraphicsItem <pyqtgraph.opengl.GLGraphicsItem>`
Displays a wire-frame box.
"""
def __init__(self, size=None, color=None, glOptions='translucent'):
GLGraphicsItem.__init__(self)
if size is None:
size = QtGui.QVector3D(1,1,1)
self.setSize(size=size)
if color is None:
color = (255,255,255,80)
self.setColor(color)
self.setGLOptions(glOptions)
def setSize(self, x=None, y=None, z=None, size=None):
"""
Set the size of the box (in its local coordinate system; this does not affect the transform)
Arguments can be x,y,z or size=QVector3D().
"""
if size is not None:
x = size.x()
y = size.y()
z = size.z()
self.__size = [x,y,z]
self.update()
def size(self):
return self.__size[:]
def setColor(self, *args):
"""Set the color of the box. Arguments are the same as those accepted by functions.mkColor()"""
self.__color = fn.Color(*args)
def color(self):
return self.__color
def paint(self):
#glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
#glEnable( GL_BLEND )
#glEnable( GL_ALPHA_TEST )
##glAlphaFunc( GL_ALWAYS,0.5 )
#glEnable( GL_POINT_SMOOTH )
#glDisable( GL_DEPTH_TEST )
self.setupGLState()
glBegin( GL_LINES )
glColor4f(*self.color().glColor())
x,y,z = self.size()
glVertex3f(0, 0, 0)
glVertex3f(0, 0, z)
glVertex3f(x, 0, 0)
glVertex3f(x, 0, z)
glVertex3f(0, y, 0)
glVertex3f(0, y, z)
glVertex3f(x, y, 0)
glVertex3f(x, y, z)
glVertex3f(0, 0, 0)
glVertex3f(0, y, 0)
glVertex3f(x, 0, 0)
glVertex3f(x, y, 0)
glVertex3f(0, 0, z)
glVertex3f(0, y, z)
glVertex3f(x, 0, z)
glVertex3f(x, y, z)
glVertex3f(0, 0, 0)
glVertex3f(x, 0, 0)
glVertex3f(0, y, 0)
glVertex3f(x, y, 0)
glVertex3f(0, 0, z)
glVertex3f(x, 0, z)
glVertex3f(0, y, z)
glVertex3f(x, y, z)
glEnd()