def axis_visual(scale=1.0, parent=None):
"""
Returns a :class:`vispy.scene.visuals.XYZAxis` class instance using given
scale.
Parameters
----------
scale : numeric, optional
Axis visual scale.
parent : Node, optional
Parent of the axis visual in the `SceneGraph`.
Returns
-------
XYZAxis
Axis visual.
"""
axis = XYZAxis(parent=parent)
transform = AffineTransform()
transform.scale((scale, scale, scale))
axis.transform = transform
return axis
def __init__(self):
app.Canvas.__init__(self, keys='interactive', size=(800, 550))
self.meshes = []
self.rotation = AffineTransform()
# Generate some data to work with
global mdata
mdata = create_sphere(20, 40, 1.0)
# Mesh with pre-indexed vertices, uniform color
self.meshes.append(visuals.MeshVisual(meshdata=mdata, color='r'))
## Mesh with pre-indexed vertices, per-face color
## Because vertices are pre-indexed, we get a different color
## every time a vertex is visited, resulting in sharp color
## differences between edges.
verts = mdata.get_vertices(indexed='faces')
nf = verts.size // 9
fcolor = np.ones((nf, 3, 4), dtype=np.float32)
fcolor[..., 0] = np.linspace(1, 0, nf)[:, np.newaxis]
fcolor[..., 1] = np.random.normal(size=nf)[:, np.newaxis]
fcolor[..., 2] = np.linspace(0, 1, nf)[:, np.newaxis]
mesh = visuals.MeshVisual(vertices=verts, face_colors=fcolor)
self.meshes.append(mesh)
## Mesh with unindexed vertices, per-vertex color
## Because vertices are unindexed, we get the same color
## every time a vertex is visited, resulting in no color differences
## between edges.
verts = mdata.get_vertices()
faces = mdata.get_faces()
nv = verts.size // 3
vcolor = np.ones((nv, 4), dtype=np.float32)
vcolor[:, 0] = np.linspace(1, 0, nv)
vcolor[:, 1] = np.random.normal(size=nv)
vcolor[:, 2] = np.linspace(0, 1, nv)
self.meshes.append(visuals.MeshVisual(verts, faces, vcolor))
self.meshes.append(
visuals.MeshVisual(verts, faces, vcolor, shading='flat'))
self.meshes.append(
visuals.MeshVisual(verts, faces, vcolor, shading='smooth'))
# Lay out meshes in a grid
grid = (3, 3)
s = 300. / max(grid)
for i, mesh in enumerate(self.meshes):
x = 800. * (i % grid[0]) / grid[0] + 400. / grid[0] - 2
y = 800. * (i // grid[1]) / grid[1] + 400. / grid[1] + 2
transform = ChainTransform([
STTransform(translate=(x, y), scale=(s, s, 1)), self.rotation
])
tr_sys = visuals.transforms.TransformSystem(self)
tr_sys.visual_to_document = transform
mesh.tr_sys = tr_sys
self.show()
self.timer = app.Timer(connect=self.rotate)
self.timer.start(0.016)
def __init__(self):
self.images = [visuals.ImageVisual(image, method='impostor')
for i in range(4)]
self.images[0].transform = (STTransform(scale=(30, 30),
translate=(600, 600)) *
SineTransform() *
STTransform(scale=(0.1, 0.1),
translate=(-5, -5)))
tr = AffineTransform()
tr.rotate(30, (0, 0, 1))
tr.scale((3, 3))
self.images[1].transform = (STTransform(translate=(200, 600)) *
tr *
STTransform(translate=(-50, -50)))
self.images[2].transform = (STTransform(scale=(3, -150),
translate=(200, 100)) *
LogTransform((0, 2, 0)) *
STTransform(scale=(1, -0.01),
translate=(-50, 1.3)))
self.images[3].transform = (STTransform(scale=(400, 400),
translate=(600, 300)) *
PolarTransform() *
STTransform(scale=(np.pi/200, 0.005),
translate=(-3*np.pi/4., 0.1)))
vispy.app.Canvas.__init__(self, keys='interactive')
self.size = (800, 800)
self.show()
for img in self.images:
img.tr_sys = TransformSystem(self)
img.tr_sys.visual_to_document = img.transform
def __init__(self):
app.Canvas.__init__(self, keys='interactive', size=(800, 550))
self.meshes = []
self.rotation = AffineTransform()
# Generate some data to work with
global mdata
mdata = create_sphere(20, 40, 1.0)
# Mesh with pre-indexed vertices, uniform color
self.meshes.append(visuals.MeshVisual(meshdata=mdata, color='r'))
## Mesh with pre-indexed vertices, per-face color
## Because vertices are pre-indexed, we get a different color
## every time a vertex is visited, resulting in sharp color
## differences between edges.
verts = mdata.get_vertices(indexed='faces')
nf = verts.size//9
fcolor = np.ones((nf, 3, 4), dtype=np.float32)
fcolor[..., 0] = np.linspace(1, 0, nf)[:, np.newaxis]
fcolor[..., 1] = np.random.normal(size=nf)[:, np.newaxis]
fcolor[..., 2] = np.linspace(0, 1, nf)[:, np.newaxis]
mesh = visuals.MeshVisual(vertices=verts, face_colors=fcolor)
self.meshes.append(mesh)
## Mesh with unindexed vertices, per-vertex color
## Because vertices are unindexed, we get the same color
## every time a vertex is visited, resulting in no color differences
## between edges.
verts = mdata.get_vertices()
faces = mdata.get_faces()
nv = verts.size//3
vcolor = np.ones((nv, 4), dtype=np.float32)
vcolor[:, 0] = np.linspace(1, 0, nv)
vcolor[:, 1] = np.random.normal(size=nv)
vcolor[:, 2] = np.linspace(0, 1, nv)
self.meshes.append(visuals.MeshVisual(verts, faces, vcolor))
self.meshes.append(visuals.MeshVisual(verts, faces, vcolor,
shading='flat'))
self.meshes.append(visuals.MeshVisual(verts, faces, vcolor,
shading='smooth'))
# Lay out meshes in a grid
grid = (3, 3)
s = 300. / max(grid)
for i, mesh in enumerate(self.meshes):
x = 800. * (i % grid[0]) / grid[0] + 400. / grid[0] - 2
y = 800. * (i // grid[1]) / grid[1] + 400. / grid[1] + 2
transform = ChainTransform([STTransform(translate=(x, y),
scale=(s, s, 1)),
self.rotation])
tr_sys = visuals.transforms.TransformSystem(self)
tr_sys.visual_to_document = transform
mesh.tr_sys = tr_sys
self.show()
self.timer = app.Timer(connect=self.rotate)
self.timer.start(0.016)
def __init__(self):
vispy.app.Canvas.__init__(self, keys='interactive', size=(800, 800))
self.images = [visuals.ImageVisual(image, method='impostor')
for i in range(4)]
self.images[0].transform = (STTransform(scale=(30, 30),
translate=(600, 600)) *
SineTransform() *
STTransform(scale=(0.1, 0.1),
translate=(-5, -5)))
tr = AffineTransform()
tr.rotate(30, (0, 0, 1))
tr.scale((3, 3))
self.images[1].transform = (STTransform(translate=(200, 600)) *
tr *
STTransform(translate=(-50, -50)))
self.images[2].transform = (STTransform(scale=(3, -150),
translate=(200, 100)) *
LogTransform((0, 2, 0)) *
STTransform(scale=(1, -0.01),
translate=(-50, 1.3)))
self.images[3].transform = (STTransform(scale=(400, 400),
translate=(600, 300)) *
PolarTransform() *
STTransform(scale=(np.pi/200, 0.005),
translate=(-3*np.pi/4., 0.1)))
for img in self.images:
img.tr_sys = TransformSystem(self)
img.tr_sys.visual_to_document = img.transform
self.show()
def __init__(self):
app.Canvas.__init__(self, keys=None, size=(360, 360))
self.data = np.zeros((360, 360))
for i in range(0,90):
self.data[i,:] = i * 90
self.image = visuals.ImageVisual(self.data, method='auto', cmap='cubehelix', clim='auto')
self.image.tr_sys = TransformSystem(self)
tr = AffineTransform()
tr.rotate(90, (0, 0, 1))
self.image.transform = (STTransform(scale=(3.5,3.5), translate=(180, 180, 1)) *
tr *
PolarTransform())
self.image.tr_sys.visual_to_document = self.image.transform
self._timer = app.Timer(start=False)
self._timer.connect(self.update)
self._timer.start()
self.show()
self.measure_fps()
def __init__(self):
# Define several Line visuals that use the same position data
# but have different colors and transformations
colors = [color, (1, 0, 0, 1), (0, 1, 0, 1), (0, 0, 1, 1),
(1, 1, 0, 1), (1, 1, 1, 1)]
self.lines = [visuals.LineVisual(pos=pos, color=colors[i])
for i in range(6)]
center = STTransform(translate=(400, 400))
self.lines[0].transform = center
self.lines[1].transform = (center *
STTransform(scale=(1, 0.1, 1)))
self.lines[2].transform = (center *
STTransform(translate=(200, 200, 0)) *
STTransform(scale=(0.3, 0.5, 1)))
self.lines[3].transform = (center *
STTransform(translate=(-200, -200, 0),
scale=(200, 1)) *
LogTransform(base=(10, 0, 0)) *
STTransform(translate=(1, 0, 0)))
self.lines[4].transform = AffineTransform()
self.lines[4].transform.rotate(45, (0, 0, 1))
self.lines[4].transform.scale((0.3, 0.3, 1))
self.lines[4].transform.translate((200, 200, 0))
self.lines[5].transform = (STTransform(translate=(200, 600, 0),
scale=(5, 5)) *
PolarTransform() *
LogTransform(base=(2, 0, 0)) *
STTransform(scale=(0.01, 0.1),
translate=(4, 20)))
app.Canvas.__init__(self, keys='interactive')
self.size = (800, 800)
self.show()
for line in self.lines:
tr_sys = visuals.transforms.TransformSystem(self)
tr_sys.visual_to_document = line.transform
line.tr_sys = tr_sys
def __init__(self):
app.Canvas.__init__(self, keys='interactive')
self.meshes = []
self.rotation = AffineTransform()
# Generate some data to work with
global mdata
mdata = create_sphere(20, 40, 1.0)
# Mesh with pre-indexed vertices, uniform color
verts = mdata.get_vertices(indexed='faces')
mesh = ModularMesh(pos=verts, color=(1, 0, 0, 1))
self.meshes.append(mesh)
# Mesh with pre-indexed vertices, per-face color
# Because vertices are pre-indexed, we get a different color
# every time a vertex is visited, resulting in sharp color
# differences between edges.
nf = verts.size//9
fcolor = np.ones((nf, 3, 4), dtype=np.float32)
fcolor[..., 0] = np.linspace(1, 0, nf)[:, np.newaxis]
fcolor[..., 1] = np.random.normal(size=nf)[:, np.newaxis]
fcolor[..., 2] = np.linspace(0, 1, nf)[:, np.newaxis]
mesh = ModularMesh(pos=verts, color=fcolor)
self.meshes.append(mesh)
# Mesh with unindexed vertices, per-vertex color
# Because vertices are unindexed, we get the same color
# every time a vertex is visited, resulting in no color differences
# between edges.
verts = mdata.get_vertices()
faces = mdata.get_faces()
nv = verts.size//3
vcolor = np.ones((nv, 4), dtype=np.float32)
vcolor[:, 0] = np.linspace(1, 0, nv)
vcolor[:, 1] = np.random.normal(size=nv)
vcolor[:, 2] = np.linspace(0, 1, nv)
mesh = ModularMesh(pos=verts, faces=faces, color=vcolor)
self.meshes.append(mesh)
# Mesh colored by vertices + grid contours
mesh = ModularMesh(pos=verts, faces=faces)
mesh.color_components = [VertexColorComponent(vcolor),
GridContourComponent(spacing=(0.13, 0.13,
0.13))]
self.meshes.append(mesh)
# Phong shaded mesh
mesh = ModularMesh(pos=verts, faces=faces)
normal_comp = VertexNormalComponent(mdata)
mesh.color_components = [VertexColorComponent(vcolor),
GridContourComponent(spacing=(0.1, 0.1, 0.1)),
ShadingComponent(normal_comp,
lights=[((-1, 1, -1),
(1.0, 1.0, 1.0))],
ambient=0.2)]
self.meshes.append(mesh)
# Phong shaded mesh, flat faces
mesh = ModularMesh(pos=mdata.get_vertices(indexed='faces'))
normal_comp = VertexNormalComponent(mdata, smooth=False)
mesh.color_components = [
VertexColorComponent(vcolor[mdata.get_faces()]),
GridContourComponent(spacing=(0.1, 0.1, 0.1)),
ShadingComponent(normal_comp, lights=[((-1, 1, -1),
(1.0, 1.0, 1.0))],
ambient=0.2)]
self.meshes.append(mesh)
# Lay out meshes in a grid
grid = (3, 3)
s = 300. / max(grid)
for i, mesh in enumerate(self.meshes):
x = 800. * (i % grid[0]) / grid[0] + 400. / grid[0] - 2
y = 800. * (i // grid[1]) / grid[1] + 400. / grid[1] + 2
mesh.transform = ChainTransform([STTransform(translate=(x, y),
scale=(s, s, 1)),
self.rotation])
mesh.tr_sys = visuals.transforms.TransformSystem(self)
mesh.tr_sys.visual_to_document = mesh.transform
self.size = (800, 800)
self.show()
self.timer = app.Timer(connect=self.rotate)
self.timer.start(0.016)
def __init__(self):
app.Canvas.__init__(self, keys='interactive')
self.meshes = []
self.rotation = AffineTransform()
# Generate some data to work with
global mdata
mdata = create_sphere(20, 40, 1.0)
# Mesh with pre-indexed vertices, uniform color
verts = mdata.get_vertices(indexed='faces')
mesh = ModularMesh(pos=verts, color=(1, 0, 0, 1))
self.meshes.append(mesh)
# Mesh with pre-indexed vertices, per-face color
# Because vertices are pre-indexed, we get a different color
# every time a vertex is visited, resulting in sharp color
# differences between edges.
nf = verts.size // 9
fcolor = np.ones((nf, 3, 4), dtype=np.float32)
fcolor[..., 0] = np.linspace(1, 0, nf)[:, np.newaxis]
fcolor[..., 1] = np.random.normal(size=nf)[:, np.newaxis]
fcolor[..., 2] = np.linspace(0, 1, nf)[:, np.newaxis]
mesh = ModularMesh(pos=verts, color=fcolor)
self.meshes.append(mesh)
# Mesh with unindexed vertices, per-vertex color
# Because vertices are unindexed, we get the same color
# every time a vertex is visited, resulting in no color differences
# between edges.
verts = mdata.get_vertices()
faces = mdata.get_faces()
nv = verts.size // 3
vcolor = np.ones((nv, 4), dtype=np.float32)
vcolor[:, 0] = np.linspace(1, 0, nv)
vcolor[:, 1] = np.random.normal(size=nv)
vcolor[:, 2] = np.linspace(0, 1, nv)
mesh = ModularMesh(pos=verts, faces=faces, color=vcolor)
self.meshes.append(mesh)
# Mesh colored by vertices + grid contours
mesh = ModularMesh(pos=verts, faces=faces)
mesh.color_components = [
VertexColorComponent(vcolor),
GridContourComponent(spacing=(0.13, 0.13, 0.13))
]
self.meshes.append(mesh)
# Phong shaded mesh
mesh = ModularMesh(pos=verts, faces=faces)
normal_comp = VertexNormalComponent(mdata)
mesh.color_components = [
VertexColorComponent(vcolor),
GridContourComponent(spacing=(0.1, 0.1, 0.1)),
ShadingComponent(normal_comp,
lights=[((-1, 1, -1), (1.0, 1.0, 1.0))],
ambient=0.2)
]
self.meshes.append(mesh)
# Phong shaded mesh, flat faces
mesh = ModularMesh(pos=mdata.get_vertices(indexed='faces'))
normal_comp = VertexNormalComponent(mdata, smooth=False)
mesh.color_components = [
VertexColorComponent(vcolor[mdata.get_faces()]),
GridContourComponent(spacing=(0.1, 0.1, 0.1)),
ShadingComponent(normal_comp,
lights=[((-1, 1, -1), (1.0, 1.0, 1.0))],
ambient=0.2)
]
self.meshes.append(mesh)
# Lay out meshes in a grid
grid = (3, 3)
s = 300. / max(grid)
for i, mesh in enumerate(self.meshes):
x = 800. * (i % grid[0]) / grid[0] + 400. / grid[0] - 2
y = 800. * (i // grid[1]) / grid[1] + 400. / grid[1] + 2
mesh.transform = ChainTransform([
STTransform(translate=(x, y), scale=(s, s, 1)), self.rotation
])
mesh.tr_sys = visuals.transforms.TransformSystem(self)
mesh.tr_sys.visual_to_document = mesh.transform
self.size = (800, 800)
self.show()
self.timer = app.Timer(connect=self.rotate)
self.timer.start(0.016)
