def do(self):
############################################################
# Imports.
script = self.script
from enthought.mayavi.sources.vtk_data_source import VTKDataSource
from enthought.mayavi.modules.api import ImagePlaneWidget
# Create dataset with multiple scalars.
arr1 = zeros(27, 'f')
for n in range(27):
arr1[n] = (1 + float(n)) / 10.0
arr2 = (arr1 + 1).astype('d')
arr3 = arr1 + 2.0 * (0.5 - random.random(27))
arr3 = arr3.astype('f')
p = tvtk.ImageData(dimensions=[3, 3, 3],
spacing=[1, 1, 1],
scalar_type='int')
p.point_data.scalars = arr1
p.point_data.scalars.name = 'first'
j2 = p.point_data.add_array(arr2)
p.point_data.get_array(j2).name = 'second'
j3 = p.point_data.add_array(arr3)
p.point_data.get_array(j3).name = 'third'
p.update()
# Make the pipeline.
self.new_scene()
src = VTKDataSource(data=p)
script.add_source(src)
ipw = ImagePlaneWidget()
script.add_module(ipw)
# Test.
ipw = ipw.ipw
scalars = ipw.input.point_data.scalars
r = scalars.range
expect = min(arr1), max(arr1)
assert r == expect
o = src.outputs[0]
o.update_traits()
st = ipw.input.scalar_type
assert scalars.data_type == 10
assert st == 'float'
src.point_scalars_name = 'second'
scalars = ipw.input.point_data.scalars
r = scalars.range
expect = min(arr2), max(arr2)
assert r == expect
o.update_traits()
st = ipw.input.scalar_type
assert scalars.data_type == 11
assert st == 'double'
src.point_scalars_name = 'third'
scalars = ipw.input.point_data.scalars
r = scalars.range
expect = min(arr3), max(arr3)
assert r == expect
o.update_traits()
st = ipw.input.scalar_type
assert scalars.data_type == 10
assert st == 'float'
def do(self):
############################################################
# Imports.
script = self.script
from enthought.mayavi.sources.vtk_data_source import VTKDataSource
from enthought.mayavi.modules.api import ImagePlaneWidget
# Create dataset with multiple scalars.
arr1 = zeros(27, 'f')
for n in range(27):
arr1[n] = (1+float(n))/10.0
arr2 = (arr1 + 1).astype('d')
arr3 = arr1 + 2.0*(0.5 - random.random(27))
arr3 = arr3.astype('f')
p = tvtk.ImageData(dimensions=[3,3,3],spacing=[1,1,1],
scalar_type='int')
p.point_data.scalars = arr1
p.point_data.scalars.name = 'first'
j2 = p.point_data.add_array(arr2)
p.point_data.get_array(j2).name='second'
j3 = p.point_data.add_array(arr3)
p.point_data.get_array(j3).name='third'
p.update()
# Make the pipeline.
self.new_scene()
src = VTKDataSource(data=p)
script.add_source(src)
ipw = ImagePlaneWidget()
script.add_module(ipw)
# Test.
ipw = ipw.ipw
scalars = ipw.input.point_data.scalars
r = scalars.range
expect = min(arr1), max(arr1)
assert r == expect
o = src.outputs[0]
o.update_traits()
st = ipw.input.scalar_type
assert scalars.data_type == 10
assert st == 'float'
src.point_scalars_name = 'second'
scalars = ipw.input.point_data.scalars
r = scalars.range
expect = min(arr2), max(arr2)
assert r == expect
o.update_traits()
st = ipw.input.scalar_type
assert scalars.data_type == 11
assert st == 'double'
src.point_scalars_name = 'third'
scalars = ipw.input.point_data.scalars
r = scalars.range
expect = min(arr3), max(arr3)
assert r == expect
o.update_traits()
st = ipw.input.scalar_type
assert scalars.data_type == 10
assert st == 'float'
