def test_gui(self):
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
vv.solidBox((0, 0, 0))
sphere = vv.solidSphere((3, 0, 0))
cone = vv.solidCone((6, 0, 0))
# a cone with 4 faces is a pyramid
pyramid = vv.solidCone((9, 0, 0), N=4)
vv.solidCylinder((0, 3, 0), (1, 1, 2))
ring = vv.solidRing((3, 3, 0))
vv.solidTeapot((6, 3, 0))
vv.solidLine(pp+Point(9, 3, 0), radius=0.2)
# Make the ring green
ring.faceColor = 'g'
# Make the sphere dull
sphere.specular = 0
sphere.diffuse = 0.4
# Show lines in yellow pyramid
pyramid.faceColor = 'r'
pyramid.edgeShading = 'plain'
# Colormap example
N = cone._vertices.shape[0]
cone.SetValues(np.linspace(0, 1, N))
cone.colormap = vv.CM_JET
the mesh objects.
"""
import numpy as np
import visvis as vv
from visvis import Point, Pointset
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
# Create mesh and set orientation
m = vv.OrientableMesh(axes, vertices, None, normals, verticesPerFace=4)
#
if translation is not None:
m.translation = translation
if scaling is not None:
m.scaling = scaling
if direction is not None:
m.direction = direction
if rotation is not None:
m.rotation = rotation
# Adjust axes
if axesAdjust:
if axes.daspectAuto is None:
axes.daspectAuto = False
axes.cameraType = '3d'
axes.SetLimits()
# Done
axes.Draw()
return m
if __name__ == '__main__':
m1 = vv.solidBox((3, 1, 1), (2, 2, 1), rotation=-20)
m2 = vv.solidBox((1, 1, 0), (1, 1, 1.5), direction=(1, 0.4, 0.2))
m1.faceColor = 'r'
m2.faceColor = 'g'
def bar3(data1,
data2=None,
data3=None,
width=0.75,
axesAdjust=True,
axes=None):
""" bar3(*args, width=0.75, axesAdjust=True, axes=None)
Create a 3D bar chart and returns a Bars3D instance that can be
used to change the appearance of the bars (such as lighting properties
and color).
Usage
-----
* bar3(H, ...) creates bars of specified height.
* bar3(X, H, ...) also supply their x-coordinates
* bar3(X, Y, H, ...) supply both x- and y-coordinates
Keyword arguments
-----------------
width : scalar
The width of the bars.
axesAdjust : bool
If True, this function will call axes.SetLimits(), and set
the camera type to 3D. If daspectAuto has not been set yet,
it is set to False.
axes : Axes instance
Display the bars in the given axes, or the current axes if not given.
"""
# Pre check
if True:
try:
if not hasattr(data1, '__len__'):
raise ValueError
data1 = [float(val) for val in data1]
except Exception:
raise ValueError('bar3 needs a sequence of numbers.')
if data2 is not None:
try:
if not hasattr(data2, '__len__'):
raise ValueError
data2 = [float(val) for val in data2]
except Exception:
raise ValueError('bar3 needs a sequence of numbers.')
if data3 is not None:
try:
if not hasattr(data3, '__len__'):
raise ValueError
data3 = [float(val) for val in data3]
except Exception:
raise ValueError('bar3 needs a sequence of numbers.')
# Parse input
if data2 is None and data3 is None:
# Only height given
hh = data1
xx = list(range(len(hh)))
yy = [0] * len(hh)
elif data3 is None:
# Height and x given
xx = data1
hh = data2
yy = [0] * len(hh)
else:
# All three given
xx = data1
yy = data2
hh = data3
# Check
if len(hh) != len(xx) or len(hh) != len(yy):
raise ValueError('Given arrays for bar3 must be of equal length.')
# Get axes
if axes is None:
axes = vv.gca()
# Create Bars instance
bars = Bars3D(axes)
# Create boxes
for x, y, h in zip(xx, yy, hh):
pos = (x, y, h / 2.0)
scale = (width, width, h)
m = vv.solidBox(pos, scale, axesAdjust=False, axes=bars)
m.specular = 0
# Adjust axes
if axesAdjust:
if axes.daspectAuto is None:
axes.daspectAuto = False
axes.cameraType = '3d'
axes.SetLimits()
# Done
axes.Draw()
return bars
# Create mesh and set orientation
m = vv.OrientableMesh(axes, vertices, None, normals, verticesPerFace=4)
#
if translation is not None:
m.translation = translation
if scaling is not None:
m.scaling = scaling
if direction is not None:
m.direction = direction
if rotation is not None:
m.rotation = rotation
# Adjust axes
if axesAdjust:
if axes.daspectAuto is None:
axes.daspectAuto = False
axes.cameraType = '3d'
axes.SetLimits()
# Done
axes.Draw()
return m
if __name__ == '__main__':
m1 = vv.solidBox((3,1,1), (2,2,1), rotation=-20)
m2 = vv.solidBox((1,1,0), (1,1,1.5), direction=(1,0.4,0.2))
m1.faceColor = 'r'
m2.faceColor = 'g'
#!/usr/bin/env python """ This example shows a ball that bounces on a surface and has two balls rotating around it. It illustrates the use of timers and how object hierarchy can be used to build (and move) complex models consisting of multiple simple objects. """ import visvis as vv # Create floor floor = vv.solidBox((0,0,-1.5), (6,6,1)) # Create hierachy objects sun = vv.solidSphere() earth = vv.solidSphere((2,0,0),(0.3,0.3,0.2)) moon = vv.solidSphere((2,0,0),scaling=(0.2, 0.2, 0.3)) moon.parent = earth earth.parent = sun # Add transformations sunTrans = sun.transformations[0] earthRot = vv.Transform_Rotate(20) moonRot = vv.Transform_Rotate(20) earth.transformations.insert(0,earthRot) moon.transformations.insert(0,moonRot) # Set appearance earth.faceColor = 'b' moon.faceColor = 'y' sun.faceColor = 'r'
def bar3(data1, data2=None, data3=None, width=0.75, axesAdjust=True, axes=None):
""" bar3(*args, width=0.75, axesAdjust=True, axes=None)
Create a 3D bar chart and returns a Bars3D instance that can be
used to change the appearance of the bars (such as lighting properties
and color).
Usage
-----
* bar3(H, ...) creates bars of specified height.
* bar3(X, H, ...) also supply their x-coordinates
* bar3(X, Y, H, ...) supply both x- and y-coordinates
Keyword arguments
-----------------
width : scalar
The width of the bars.
axesAdjust : bool
If True, this function will call axes.SetLimits(), and set
the camera type to 3D. If daspectAuto has not been set yet,
it is set to False.
axes : Axes instance
Display the bars in the given axes, or the current axes if not given.
"""
# Pre check
if True:
try:
if not hasattr(data1, "__len__"):
raise ValueError
data1 = [float(val) for val in data1]
except Exception:
raise ValueError("bar3 needs a sequence of numbers.")
if data2 is not None:
try:
if not hasattr(data2, "__len__"):
raise ValueError
data2 = [float(val) for val in data2]
except Exception:
raise ValueError("bar3 needs a sequence of numbers.")
if data3 is not None:
try:
if not hasattr(data3, "__len__"):
raise ValueError
data3 = [float(val) for val in data3]
except Exception:
raise ValueError("bar3 needs a sequence of numbers.")
# Parse input
if data2 is None and data3 is None:
# Only height given
hh = data1
xx = range(len(hh))
yy = [0] * len(hh)
elif data3 is None:
# Height and x given
xx = data1
hh = data2
yy = [0] * len(hh)
else:
# All three given
xx = data1
yy = data2
hh = data3
# Check
if len(hh) != len(xx) or len(hh) != len(yy):
raise ValueError("Given arrays for bar3 must be of equal length.")
# Get axes
if axes is None:
axes = vv.gca()
# Create Bars instance
bars = Bars3D(axes)
# Create boxes
for x, y, h in zip(xx, yy, hh):
pos = (x, y, h / 2.0)
scale = (width, width, h)
m = vv.solidBox(pos, scale, axesAdjust=False, axes=bars)
m.specular = 0
# Adjust axes
if axesAdjust:
if axes.daspectAuto is None:
axes.daspectAuto = False
axes.cameraType = "3d"
axes.SetLimits()
# Done
axes.Draw()
return bars
#!/usr/bin/env python """ This example shows a ball that bounces on a surface and has two balls rotating around it. It illustrates the use of timers and how object hierarchy can be used to build (and move) complex models consisting of multiple simple objects. """ import visvis as vv # Create floor floor = vv.solidBox((0, 0, -1.5), (6, 6, 1)) # Create hierachy objects sun = vv.solidSphere() earth = vv.solidSphere((2, 0, 0), (0.3, 0.3, 0.2)) moon = vv.solidSphere((2, 0, 0), scaling=(0.2, 0.2, 0.3)) moon.parent = earth earth.parent = sun # Add transformations sunTrans = sun.transformations[0] earthRot = vv.Transform_Rotate(20) moonRot = vv.Transform_Rotate(20) earth.transformations.insert(0, earthRot) moon.transformations.insert(0, moonRot) # Set appearance earth.faceColor = 'b' moon.faceColor = 'y' sun.faceColor = 'r'
the mesh objects.
"""
import numpy as np
import visvis as vv
from visvis import Point, Pointset
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('lena.png')
cylinder.SetTexture(im)
# Make the ring green
