def on_doubleclick_line(self, event): # On axes # Get closest point dists = Point(event.x2d, event.y2d).distance(self._pp) I, = np.where(dists == dists.min()) if not len(I): return False # Remove from pointset self._pp.Pop(I[0]) self._line1.SetPoints(self._pp) # Apply self._a1.Draw() self.apply()
def on_down(self, event): if event.button != 1: return False if not vv.KEY_SHIFT in event.modifiers: return False # Store location self._active = Point(event.x2d, event.y2d) # Clear any line object for l in self._lines: l.Destroy() # Create line objects tmp = Pointset(2) tmp.append(self._active) tmp.append(self._active) l1 = vv.plot(tmp, lc='g', lw='3', axes=self._a2, axesAdjust=0) l2 = vv.plot(tmp[:1], ls='', ms='.', mc='g', axes=self._a2, axesAdjust=0) self._lines = [l1, l2] # Draw self._a2.Draw() # Prevent dragging by indicating the event needs no further handling return True
def OnUp(self, event): """ Called when the mouse is released (when first pressed down in the axes). """ # Only if a point is active if self._active is None: return False # Get points p1 = self._active p2 = Point(event.x2d, event.y2d) # Add! self._pp.append(p1) self._pp.append(p2) # We're done with this one self._active = None # Clear temp line object if self._line1: self._line1.Destroy() self._line1 = None # Update lines self._line2.SetPoints(self._pp) # Draw self._a.Draw()
def OnDown(self, event): """ Called when the mouse is pressed down in the axes. """ # Only process left mouse button if event.button != 1: return False # Store location self._active = Point(event.x2d, event.y2d) # Clear temp line object if self._line1: self._line1.Destroy() # Create line objects tmp = Pointset(2) tmp.append(self._active) tmp.append(self._active) self._line1 = vv.plot(tmp, lc='r', lw='1', axes=self._a, axesAdjust=0) # Draw self._a.Draw() # Prevent dragging by indicating the event needs no further handling return True
def on_down_line(self, event): # On line instance if event.button != 1: return False # Get closest point dists = Point(event.x2d, event.y2d).distance(self._pp) I, = np.where(dists == dists.min()) if not len(I): return False # Store self._active = I[0] # Prevent dragging by indicating the event needs no further handling return True
def on_motion(self, event): if self._active is None: return False # Update line self._pp[self._active] = Point(event.x2d, event.y2d) self._line1.SetPoints(self._pp) # Draw self._a1.Draw()
def on_doubleclick(self, event): # On axes # Get new point p = Point(event.x2d, event.y2d) # Add to pointset self._pp.append(p) self._line1.SetPoints(self._pp) # Apply self.apply()
def on_up(self, event): if self._active is None: return False # Get points p1 = self._active p2 = Point(event.x2d, event.y2d) # Add! self._pp1.append(p1) self._pp2.append(p2) # We're done with this one self._active = None # Clear any line object for l in self._lines: l.Destroy() # Apply self.apply()
vv.figure() a = vv.gca() # Define points for the line pp = Pointset(3) pp.append(0,0,0); pp.append(0,1,0); pp.append(1,2,0); pp.append(0,2,1) # Create all solids box = vv.solidBox((0,0,0)) sphere = vv.solidSphere((3,0,0)) cone = vv.solidCone((6,0,0)) pyramid = vv.solidCone((9,0,0), N=4) # a cone with 4 faces is a pyramid cylinder = vv.solidCylinder((0,3,0),(1,1,2)) ring = vv.solidRing((3,3,0)) teapot = vv.solidTeapot((6,3,0)) line = vv.solidLine(pp+Point(9,3,0), radius = 0.2) # Let's put a face on that cylinder # This works because 2D texture coordinates are automatically generated for # the sphere, cone, cylinder and ring. im = vv.imread('astronaut.png') cylinder.SetTexture(im) # Make the ring green ring.faceColor = 'g' # Make the sphere dull sphere.specular = 0 sphere.diffuse = 0.4 # Show lines in yellow pyramid
def __init__(self, *args, **kwargs): Point.__init__(self, *args, **kwargs) self._edges = []
def __str__(self): """ Make string representation. """ s = Point.__str__(self) s.replace('point', 'node')
#!/usr/bin/env python import numpy as np import visvis as vv from visvis import Point, Pointset app = vv.use() # create random points a = np.random.normal(size=(1000, 3)) pp = Pointset(a) pp *= Point(2, 5, 1) # prepare axes a = vv.gca() a.cameraType = '3d' a.daspectAuto = False # draw points l = vv.plot(pp, ms='.', mc='r', mw='9', ls='', mew=0) l.alpha = 0.1 app.Run()
def __init__(self, *args, **kwargs): Point.__init__(self, *args, **kwargs) self._edges = []
def __str__(self): """ Make string representation. """ s = Point.__str__(self) s.replace('point', 'node')