/usr/lib/python2.7/dist-packages/pyqtgraph/opengl/items/GLAxisItem.py is in python-pyqtgraph 0.9.10-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | from OpenGL.GL import *
from .. GLGraphicsItem import GLGraphicsItem
from ... import QtGui
__all__ = ['GLAxisItem']
class GLAxisItem(GLGraphicsItem):
"""
**Bases:** :class:`GLGraphicsItem <pyqtgraph.opengl.GLGraphicsItem>`
Displays three lines indicating origin and orientation of local coordinate system.
"""
def __init__(self, size=None, antialias=True, glOptions='translucent'):
GLGraphicsItem.__init__(self)
if size is None:
size = QtGui.QVector3D(1,1,1)
self.antialias = antialias
self.setSize(size=size)
self.setGLOptions(glOptions)
def setSize(self, x=None, y=None, z=None, size=None):
"""
Set the size of the axes (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 paint(self):
#glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
#glEnable( GL_BLEND )
#glEnable( GL_ALPHA_TEST )
self.setupGLState()
if self.antialias:
glEnable(GL_LINE_SMOOTH)
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST)
glBegin( GL_LINES )
x,y,z = self.size()
glColor4f(0, 1, 0, .6) # z is green
glVertex3f(0, 0, 0)
glVertex3f(0, 0, z)
glColor4f(1, 1, 0, .6) # y is yellow
glVertex3f(0, 0, 0)
glVertex3f(0, y, 0)
glColor4f(0, 0, 1, .6) # x is blue
glVertex3f(0, 0, 0)
glVertex3f(x, 0, 0)
glEnd()
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