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, size=(800, 600), keys="interactive")
img_data = get_mandlebrot_escape_values(600, 400)
self.image = ImageVisual(img_data, cmap=colormap)
image_transform = STTransform(scale=(1.3, 1.3), translate=(100, 0))
self.image_transform_sys = TransformSystem(self)
self.image_transform_sys.visual_to_document = image_transform
self.vertical_bar = get_vertical_bar()
# construct a default transform that does identity scaling
# and does not translate the coordinates
colorbar_transform = NullTransform()
self.colorbar_transform_sys = TransformSystem(self)
self.colorbar_transform_sys.visual_to_document = colorbar_transform
self.show()
def __init__(self):
self.image = visuals.ImageVisual(image, method='subdivide')
self.image_transform = STTransform(scale=(7, 7), translate=(50, 50))
vispy.app.Canvas.__init__(self, keys='interactive')
self.size = (800, 800)
self.show()
# Create a TransformSystem that will tell the visual how to draw
self.tr_sys = TransformSystem(self)
self.tr_sys.visual_to_document = self.image_transform
def __init__(self, **kwargs):
super(PanZoomCanvas, self).__init__(keys='interactive',
show=True,
**kwargs)
self._visuals = []
self._pz = PanZoomTransform()
self._pz.pan = Variable('uniform vec2 u_pan', (0, 0))
self._pz.zoom = Variable('uniform vec2 u_zoom', (1, 1))
self._tr = TransformSystem(self)
def __init__(self):
app.Canvas.__init__(self, keys='interactive', size=(512, 512),
title="Marker demo [press space to change marker]")
self.index = 0
self.scale = 1.
self.tr_sys = TransformSystem(self)
self.tr_sys.visual_to_document = STTransform()
self.markers = visuals.MarkersVisual()
self.markers.set_data(pos, face_color=colors)
self.markers.set_symbol(visuals.marker_types[self.index])
self.show()
def __init__(self, **kwargs):
super(PanZoomCanvas, self).__init__(keys='interactive', **kwargs)
self._visuals = []
self._pz = PanZoomTransform()
self._pz.pan = Variable('uniform vec2 u_pan', (0, 0))
self._pz.zoom = Variable('uniform vec2 u_zoom', (1, 1))
self.width, self.height = self.size
gloo.set_viewport(0, 0, self.physical_size[0], self.physical_size[1])
gloo.set_state(clear_color='black',
blend=True,
blend_func=('src_alpha', 'one_minus_src_alpha'))
self._tr = TransformSystem(self)
self.show()
def __init__(self):
app.Canvas.__init__(self, keys='interactive')
n = 10000
pos = 0.25 * np.random.randn(n, 2).astype(np.float32)
color = np.random.uniform(0, 1, (n, 3)).astype(np.float32)
size = np.random.uniform(2, 12, (n, 1)).astype(np.float32)
self.points = MarkerVisual(pos=pos, color=color, size=size)
self.panzoom = STTransform(scale=(1, 0.2), translate=(0, 500))
w2 = (self.size[0]/2, self.size[1]/2)
self.transform = ChainTransform([self.panzoom,
STTransform(scale=w2, translate=w2),
LogTransform(base=(0, 2, 0))])
self.tr_sys = TransformSystem(self)
self.tr_sys.visual_to_document = self.transform
def __init__(self):
app.Canvas.__init__(self, keys='interactive')
ps = self.pixel_scale
n = 10000
pos = 0.25 * np.random.randn(n, 2).astype(np.float32)
color = np.random.uniform(0, 1, (n, 3)).astype(np.float32)
size = np.random.uniform(2*ps, 12*ps, (n, 1)).astype(np.float32)
self.points = MarkerVisual(pos=pos, color=color, size=size)
self.panzoom = STTransform(scale=(1, 0.2), translate=(0, 500))
w2 = (self.size[0]/2, self.size[1]/2)
self.transform = ChainTransform([self.panzoom,
STTransform(scale=w2, translate=w2),
LogTransform(base=(0, 2, 0))])
self.tr_sys = TransformSystem(self)
self.tr_sys.visual_to_document = self.transform
gloo.set_state(blend=True,
blend_func=('src_alpha', 'one_minus_src_alpha'))
