本文整理汇总了Python中vispy.util.transforms.ortho函数的典型用法代码示例。如果您正苦于以下问题：Python ortho函数的具体用法？Python ortho怎么用？Python ortho使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了ortho函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: resize
def resize(self, width, height):
gloo.set_viewport(0, 0, width, height)
data_width = self._data_lim[0][1] - self._data_lim[0][0]
data_height = self._data_lim[1][1] - self._data_lim[1][0]
data_aspect = data_width / float(data_height)
frame_aspect = width / float(height)
if frame_aspect >= data_aspect:
padding = (frame_aspect * data_height - data_width) / 2.
frame_lim = [
[self._data_lim[0][0] - padding,
self._data_lim[0][1] + padding],
[self._data_lim[1][0],
self._data_lim[1][1]]]
else:
padding = (data_width / frame_aspect - data_height) / 2.
frame_lim = [
[self._data_lim[0][0],
self._data_lim[0][1]],
[self._data_lim[1][0] - padding,
self._data_lim[1][1] + padding]]
args_ortho = frame_lim[0][::(1 if self._dir_x_right else -1)]
args_ortho += frame_lim[1][::(1 if self._dir_y_top else -1)]
args_ortho += -1000, 1000
self.projection = ortho(*args_ortho)
self.program['projection'] = self.projection
开发者ID:Peque，项目名称:vispy，代码行数:25，代码来源:unstructured_2d.py
示例2: __init__
def __init__(self):
app.Canvas.__init__(self, keys='interactive', size=((W * 5), (H * 5)))
self.program = gloo.Program(VERT_SHADER, FRAG_SHADER)
self.texture = gloo.Texture2D(I, interpolation='linear')
self.program['u_texture'] = self.texture
self.program.bind(gloo.VertexBuffer(data))
self.view = np.eye(4, dtype=np.float32)
self.model = np.eye(4, dtype=np.float32)
self.projection = np.eye(4, dtype=np.float32)
self.program['u_model'] = self.model
self.program['u_view'] = self.view
self.projection = ortho(0, W, 0, H, -1, 1)
self.program['u_projection'] = self.projection
gloo.set_clear_color('white')
self._timer = app.Timer('auto', connect=self.update, start=True)
self.sim_is_initialized = False
self.sim = None
self.show()
开发者ID:btweinstein，项目名称:2d-lb，代码行数:26，代码来源:interop_test.py
示例3: toggle_projection
def toggle_projection(self, event=None):
"""Toggle between perspective and orthonormal projection modes."""
self.perspective = not self.perspective
if self.perspective:
self.volume_renderer.set_vol_projection(perspective(60, 1., 100, 0))
else:
self.volume_renderer.set_vol_projection(ortho(-1, 1, -1, 1, -1000, 1000))
开发者ID:tacyd，项目名称:volspy，代码行数:7，代码来源:viewer.py
示例4: __init__
def __init__(self):
app.Canvas.__init__(self, keys='interactive')
self.size = W * 5, H * 5
self.program = gloo.Program(VERT_SHADER, FRAG_SHADER)
self.texture = gloo.Texture3D(I, interpolation='nearest',
wrapping='clamp_to_edge')
self.program['u_texture'] = self.texture
self.program['i'] = 0.0
self.program.bind(gloo.VertexBuffer(data))
self.view = np.eye(4, dtype=np.float32)
self.model = np.eye(4, dtype=np.float32)
self.projection = np.eye(4, dtype=np.float32)
self.program['u_model'] = self.model
self.program['u_view'] = self.view
self.projection = ortho(0, W, 0, H, -1, 1)
self.program['u_projection'] = self.projection
self.i = 0
gloo.set_clear_color('white')
self._timer = app.Timer('auto', connect=self.on_timer, start=True)
开发者ID:almarklein，项目名称:vispy，代码行数:25，代码来源:animate_images_slice.py
示例5: test_transforms
def test_transforms():
"""Test basic transforms"""
xfm = np.random.randn(4, 4).astype(np.float32)
# Do a series of rotations that should end up into the same orientation
# again, to ensure the order of computation is all correct
# i.e. if rotated would return the transposed matrix this would not work
# out (the translation part would be incorrect)
new_xfm = xfm.dot(rotate(180, (1, 0, 0)).dot(rotate(-90, (0, 1, 0))))
new_xfm = new_xfm.dot(rotate(90, (0, 0, 1)).dot(rotate(90, (0, 1, 0))))
new_xfm = new_xfm.dot(rotate(90, (1, 0, 0)))
assert_allclose(xfm, new_xfm)
new_xfm = translate((1, -1, 1)).dot(translate((-1, 1, -1))).dot(xfm)
assert_allclose(xfm, new_xfm)
new_xfm = scale((1, 2, 3)).dot(scale((1, 1. / 2., 1. / 3.))).dot(xfm)
assert_allclose(xfm, new_xfm)
# These could be more complex...
xfm = ortho(-1, 1, -1, 1, -1, 1)
assert_equal(xfm.shape, (4, 4))
xfm = frustum(-1, 1, -1, 1, -1, 1)
assert_equal(xfm.shape, (4, 4))
xfm = perspective(1, 1, -1, 1)
assert_equal(xfm.shape, (4, 4))
开发者ID:Eric89GXL，项目名称:vispy，代码行数:28，代码来源:test_transforms.py
示例6: on_resize
def on_resize(self, event):
width, height = event.size
self.width=width
self.height=height
gloo.set_viewport(0, 0, width, height)
self.projection = ortho(-self.scale/2, self.scale/2, -self.scale/2, self.scale/2, -1, 100) #perspective(1.0, width / float(height), 1.0, 10000000.0)
self.program['u_projection'] = self.projection
开发者ID:gddickinson，项目名称:python_code，代码行数:7，代码来源:Scatter_Plot_2.py
示例7: on_mouse_wheel
def on_mouse_wheel(self, event):
#print(event.delta[1])
oldscale=self.scale
if event.delta[1]>0:
self.scale /=event.delta[1]+1
else:
self.scale *= -event.delta[1]+1
factor=self.scale/oldscale
self.event=event
self.projection = ortho(-self.scale/2, self.scale/2, -self.scale/2, self.scale/2, -1, 100) #perspective(1.0, width / float(height), 1.0, 10000000.0)
self.program['u_projection'] = self.projection
self.view = np.eye(4, dtype=np.float32)
x,y=self.getEventCoordinates(event)
print(factor)
if factor<1:
x-(x-self.pos[0])/factor
y-(y-self.pos[1])/factor
else:
x=self.pos[0]-(x-self.pos[0])/factor
y=self.pos[1]-(y-self.pos[1])/factor
self.pos[0]=x
self.pos[1]=y
translate(self.view, -x, -y, -1)
self.program['u_view'] = self.view
self.getEventCoordinates(self.event)
self.update()
开发者ID:gddickinson，项目名称:python_code，代码行数:26，代码来源:Scatter_Plot_2.py
示例8: on_resize
def on_resize(self, event):
width, height = event.size
gl.glViewport(0, 0, width, height)
self.projection = ortho(0, width, 0, height, -100, 100)
self.u_size = width / 512.0
self.program['u_projection'] = self.projection
self.program['u_size'] = self.u_size
开发者ID:dengemann，项目名称:vispy，代码行数:7，代码来源:show-markers.py
示例9: __init__
def __init__(self):
app.Canvas.__init__(self)
# This size is used for comparison with agg (via matplotlib)
self.size = 512, 512 + 2 * 32
self.title = "Markers demo [press space to change marker]"
self.vbo = VertexBuffer(data)
self.view = np.eye(4, dtype=np.float32)
self.model = np.eye(4, dtype=np.float32)
self.projection = ortho(0, self.size[0], 0, self.size[1], -1, 1)
self.programs = [
Program(markers.vert, markers.frag + markers.tailed_arrow),
Program(markers.vert, markers.frag + markers.disc),
Program(markers.vert, markers.frag + markers.diamond),
Program(markers.vert, markers.frag + markers.square),
Program(markers.vert, markers.frag + markers.cross),
Program(markers.vert, markers.frag + markers.arrow),
Program(markers.vert, markers.frag + markers.vbar),
Program(markers.vert, markers.frag + markers.hbar),
Program(markers.vert, markers.frag + markers.clobber),
Program(markers.vert, markers.frag + markers.ring)]
for program in self.programs:
program.set_vars(self.vbo,
u_antialias=u_antialias,
u_size=1,
u_model=self.model,
u_view=self.view,
u_projection=self.projection)
self.index = 0
self.program = self.programs[self.index]
开发者ID:dengemann，项目名称:vispy，代码行数:32，代码来源:show-markers.py
示例10: __init__
def __init__(self, emulate3d=True):
app.Canvas.__init__(self, keys='interactive', size=((W*5), (H*5)))
if emulate3d:
tex_cls = gloo.TextureEmulated3D
else:
tex_cls = gloo.Texture3D
self.texture = tex_cls(img_array, interpolation='nearest',
wrapping='clamp_to_edge')
self.program = ModularProgram(VERT_SHADER, FRAG_SHADER)
self.program.frag['sampler_type'] = self.texture.glsl_sampler_type
self.program.frag['sample'] = self.texture.glsl_sample
self.program['u_texture'] = self.texture
self.program['i'] = 0.0
self.program.bind(gloo.VertexBuffer(data))
self.view = np.eye(4, dtype=np.float32)
self.model = np.eye(4, dtype=np.float32)
self.projection = np.eye(4, dtype=np.float32)
self.program['u_model'] = self.model
self.program['u_view'] = self.view
self.projection = ortho(0, W, 0, H, -1, 1)
self.program['u_projection'] = self.projection
self.i = 0
gloo.set_clear_color('white')
self._timer = app.Timer('auto', connect=self.on_timer, start=True)
self.show()
开发者ID:Eric89GXL，项目名称:vispy，代码行数:33，代码来源:animate_images_slice.py
示例11: set_data
def set_data(self, data):
self.data = data
self.xmin, self.xmax = np.nanmin(data.x_coords), np.nanmax(data.x_coords)
self.ymin, self.ymax = np.nanmin(data.y_coords), np.nanmax(data.y_coords)
self.zmin, self.zmax = np.nanmin(data.values), np.nanmax(data.values)
self.cm_dx = (self.xmax-self.xmin)*0.1
self.view = translate((0, 0, 0))
self.projection = ortho(self.xmin, self.xmax + self.cm_dx, self.ymin, self.ymax, -1, 1)
self.program['u_view'] = self.view
self.program['u_projection'] = self.projection
self.program['u_colormap'] = gloo.Texture1D(self.colormap.get_colors(), interpolation='linear')
self.program_cm['u_view'] = self.view
self.program_cm['u_projection'] = self.projection
self.program_line['u_view'] = self.view
self.program_line['u_projection'] = self.projection
t0 = time.clock()
vertices = self.generate_vertices(data)
#print 'generate_vertices: ', time.clock()-t0
self.vbo = gloo.VertexBuffer(vertices)
self.program.bind(self.vbo)
self.update()
开发者ID:majacassidy，项目名称:qtplot，代码行数:29，代码来源:canvas.py
示例12: test_transforms
def test_transforms():
"""Test basic transforms"""
xfm = np.random.randn(4, 4).astype(np.float32)
for rot in [xrotate, yrotate, zrotate]:
new_xfm = rot(rot(xfm, 90), -90)
assert_allclose(xfm, new_xfm)
new_xfm = rotate(rotate(xfm, 90, 1, 0, 0), 90, -1, 0, 0)
assert_allclose(xfm, new_xfm)
new_xfm = translate(translate(xfm, 1, -1), 1, -1, 1)
assert_allclose(xfm, new_xfm)
new_xfm = scale(scale(xfm, 1, 2, 3), 1, 1. / 2., 1. / 3.)
assert_allclose(xfm, new_xfm)
# These could be more complex...
xfm = ortho(-1, 1, -1, 1, -1, 1)
assert_equal(xfm.shape, (4, 4))
xfm = frustum(-1, 1, -1, 1, -1, 1)
assert_equal(xfm.shape, (4, 4))
xfm = perspective(1, 1, -1, 1)
assert_equal(xfm.shape, (4, 4))
开发者ID:almarklein，项目名称:vispy，代码行数:26，代码来源:test_transforms.py
示例13: on_resize
def on_resize(self, event):
width, height = event.size
gloo.set_viewport(0, 0, width, height)
self.projection = ortho(0, width, 0, height, -100, 100)
self.u_size = width / 512.0
self.program["u_projection"] = self.projection
self.program["u_size"] = self.u_size
开发者ID:Zulko，项目名称:vispy，代码行数:7，代码来源:show_markers.py
示例14: apply_zoom
def apply_zoom(self):
width, height = self.physical_size
gloo.set_viewport(0, 0, width, height)
a, b, c = .5, .5, 2
if width>height:
a *= width/height
else:
b *= height/width
self.projection = ortho(-a, a, -b, b, -c, c)
self.program['u_projection'] = self.projection
开发者ID:JKrehl，项目名称:Electrons，代码行数:10，代码来源:AtomsViewer.py
示例15: __init__
def __init__(self, fragment_shader, vol_texture, num_channels, entry_texture, gain=1.0):
gloo.Program.__init__(self, self.vert_shader, fragment_shader)
self['u_data_texture'] = vol_texture
self['u_projection'] = ortho(-.5, .5, -.5, .5, -100, 100)
self.bind(self.port_verts)
self['u_model'] = self.port_model
self['u_view'] = np.eye(4, dtype=np.float32)
self['u_entry_texture'] = entry_texture
self['u_gain'] = gain
self['u_numchannels'] = num_channels
开发者ID:tacyd，项目名称:volspy，代码行数:11，代码来源:render.py
示例16: __init__
def __init__(self, size):
gloo.set_viewport(0, 0, *size)
self._size = size
width, height = size
self._projection_matrix = ortho(0, width, 0, height, -1, 1)
self._state = GraphicsState()
self._state.ctm = identity_transform.copy()
self._state_stack = [self._state]
self._line_renderer = LINE_RENDERER
self._marker_renderer = MARKER_RENDERER
self._rect_renderer = RECT_RENDERER
self._text_renderer = TEXT_RENDERER
self._text_pos = (0, 0)
开发者ID:tonysyu，项目名称:deli，代码行数:16，代码来源:graphics_context.py
示例17: intrinsic_to_opengl_projection
def intrinsic_to_opengl_projection(intrinsic_mat, left, right, top, bottom,
near, far):
"""
Converts intrinsic matrix to OpenGL format.
:param intrinsic_mat: Intrinsic matrix in row-major order.
:return: OpenGL perspective mat (including NDC matrix) in column-major
format.
"""
perspective_mat = np.vstack((
np.hstack((intrinsic_mat[0, :], 0)),
np.hstack((intrinsic_mat[1, :], 0)),
[0, 0, near + far, near * far],
np.hstack((intrinsic_mat[2, :], 0))
))
ndc_mat = ortho(left, right, bottom, top, near, far).T
return ndc_mat.dot(perspective_mat)
开发者ID:void42，项目名称:svbrdf-renderer，代码行数:17，代码来源:graphics_utils.py
示例18: on_resize
def on_resize(self, event):
width, height = event.size
gl.glViewport(0, 0, width, height)
self.projection = ortho( 0, width, 0, height, -100, 100 )
self.program['u_projection'] = self.projection
# Compute thje new size of the quad
r = width/float(height)
R = W/float(H)
if r < R:
w,h = width, width/R
x,y = 0, int((height-h)/2)
else:
w,h = height*R, height
x,y = int((width-w)/2), 0
data['a_position'] = np.array([[x, y], [x+w, y], [x, y+h], [x+w, y+h]])
self.program.set_vars(oogl.VertexBuffer(data))
开发者ID:joe311，项目名称:vispy，代码行数:17，代码来源:animate-images.py
示例19: on_resize
def on_resize(self, event):
width, height = self.size
gloo.set_viewport(0, 0, *event.physical_size)
self.projection = ortho(0, width, 0, height, 0, 1)
self.program['u_projection'] = self.projection
# Compute the new size of the quad
r = width / float(height)
R = W / float(H)
if r < R:
w, h = width, width / R
x, y = 0, int((height - h) / 2)
else:
w, h = height * R, height
x, y = int((width - w) / 2), 0
data['a_position'] = np.array(
[[x, y], [x + w, y], [x, y + h], [x + w, y + h]])
self.program.bind(gloo.VertexBuffer(data))
开发者ID:kmuehlbauer，项目名称:scripts，代码行数:18，代码来源:animate_gloo.py
示例20: __init__
def __init__(self):
app.Canvas.__init__(self)
self.size = W*5,H*5
self.program = oogl.Program(VERT_SHADER, FRAG_SHADER)
self.texture = oogl.Texture2D(I)
self.texture.set_filter(gl.GL_NEAREST, gl.GL_NEAREST)
self.program['u_texture'] = self.texture
self.program.set_vars(oogl.VertexBuffer(data))
self.view = np.eye(4,dtype=np.float32)
self.model = np.eye(4,dtype=np.float32)
self.projection = np.eye(4,dtype=np.float32)
self.program['u_model'] = self.model
self.program['u_view'] = self.view
self.projection = ortho(0, W, 0, H, -1, 1)
self.program['u_projection'] = self.projection
开发者ID:joe311，项目名称:vispy，代码行数:19，代码来源:animate-images.py
注：本文中的vispy.util.transforms.ortho函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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