api scripting example

api_example.py

import vistrails.core.api as API
from vistrails.core.modules.basic_modules import create_constant
org_vistrails_vistrails_vtk = API.load_package('org.vistrails.vistrails.vtk')
org_vistrails_vistrails_vtk_2 = API.load_package('org.vistrails.vistrails.vtk')
import requests
org_vistrails_vistrails_vtk_3 = API.load_package('org.vistrails.vistrails.vtk')
org_vistrails_vistrails_vtk_4 = API.load_package('org.vistrails.vistrails.vtk')
import vtk
org_vistrails_vistrails_vtk_5 = API.load_package('org.vistrails.vistrails.vtk')
from vistrails.core.modules.vistrails_module import ModuleConnector
from vistrails.core.modules.basic_modules import PathObject
import tempfile
org_vistrails_vistrails_vtk_6 = API.load_package('org.vistrails.vistrails.vtk')

# MODULE 364 org.vistrails.vistrails.url:DownloadFile
# FUNCTION url url
url = 'http://www.vistrails.org/download/download.php?type=DATA&id=head.120.vtk'
_, path = tempfile.mkstemp()
r = requests.get(url, stream=True)
with open(path, 'wb') as f:
    for chunk in r:
        f.write(chunk)
file = PathObject(path)


# MODULE 351 org.vistrails.vistrails.vtk:vtkStructuredPointsReader
# CONNECTION File file
vtk_structured_points_reader = org_vistrails_vistrails_vtk.vtkStructuredPointsReader.descriptor.module()
mc = ModuleConnector(create_constant(file), 'value')
vtk_structured_points_reader.set_input_port('File', mc)
vtk_structured_points_reader.enable_output_port('GetOutputPort0')
vtk_structured_points_reader.compute()
GetOutputPort0 = vtk_structured_points_reader.get_output('GetOutputPort0')



# MODULE 359 org.vistrails.vistrails.vtk:vtkContourFilter
# FUNCTION Value Value
Value = [0, 67.0]
# CONNECTION SetInputConnection0 GetOutputPort0
Value_2 = [Value]
vtk_contour_filter = org_vistrails_vistrails_vtk.vtkContourFilter.descriptor.module()
mc_3 = ModuleConnector(create_constant(Value_2), 'value')
vtk_contour_filter.set_input_port('Value', mc_3)
mc_3 = ModuleConnector(create_constant(GetOutputPort0), 'value')
vtk_contour_filter.set_input_port('SetInputConnection0', mc_3)
vtk_contour_filter.enable_output_port('GetOutputPort0')
vtk_contour_filter.compute()
GetOutputPort0_2 = vtk_contour_filter.get_output('GetOutputPort0')



# MODULE 355 org.vistrails.vistrails.vtk:vtkDataSetMapper
# FUNCTION ScalarVisibility ScalarVisibility
ScalarVisibility = False
# CONNECTION SetInputConnection0 GetOutputPort0_2
vtk_data_set_mapper = org_vistrails_vistrails_vtk.vtkDataSetMapper.descriptor.module()
mc_5 = ModuleConnector(create_constant(ScalarVisibility), 'value')
vtk_data_set_mapper.set_input_port('ScalarVisibility', mc_5)
mc_5 = ModuleConnector(create_constant(GetOutputPort0_2), 'value')
vtk_data_set_mapper.set_input_port('SetInputConnection0', mc_5)
vtk_data_set_mapper.enable_output_port('Instance')
vtk_data_set_mapper.compute()
Instance_3 = vtk_data_set_mapper.get_output('Instance')



# MODULE 345 org.vistrails.vistrails.vtk:vtkCamera
# FUNCTION ViewUp ViewUp_2
ViewUp_2 = [0.0, 0.0, -1.0]
# FUNCTION Position Position_2
Position_2 = [745.0, -453.0, 369.0]
# FUNCTION FocalPoint FocalPoint_2
FocalPoint_2 = [135.0, 135.0, 150.0]
FocalPoint_3 = [FocalPoint_2]
Position_3 = [Position_2]
ViewUp_3 = [ViewUp_2]
vtk_camera = org_vistrails_vistrails_vtk.vtkCamera.descriptor.module()
mc_8 = ModuleConnector(create_constant(Position_3), 'value')
vtk_camera.set_input_port('Position', mc_8)
mc_8 = ModuleConnector(create_constant(ViewUp_3), 'value')
vtk_camera.set_input_port('ViewUp', mc_8)
mc_8 = ModuleConnector(create_constant(FocalPoint_3), 'value')
vtk_camera.set_input_port('FocalPoint', mc_8)
vtk_camera.enable_output_port('Instance')
vtk_camera.compute()
Instance_4 = vtk_camera.get_output('Instance')



# MODULE 341 org.vistrails.vistrails.vtk:vtkActor
# CONNECTION Mapper Instance_3
Mapper_2 = [Instance_3]
vtk_actor = org_vistrails_vistrails_vtk.vtkActor.descriptor.module()
mc_9 = ModuleConnector(create_constant(Mapper_2), 'value')
vtk_actor.set_input_port('Mapper', mc_9)
vtk_actor.enable_output_port('Instance')
vtk_actor.compute()
Instance_5 = vtk_actor.get_output('Instance')



# MODULE 363 org.vistrails.vistrails.vtk:vtkRenderer
# CONNECTION AddActor Instance_5
# CONNECTION ActiveCamera Instance_4
ActiveCamera_2 = [Instance_4]
AddActor = [Instance_5]
vtk_renderer = org_vistrails_vistrails_vtk.vtkRenderer.descriptor.module()
mc_11 = ModuleConnector(create_constant(AddActor), 'value')
vtk_renderer.set_input_port('AddActor', mc_11)
mc_11 = ModuleConnector(create_constant(ActiveCamera_2), 'value')
vtk_renderer.set_input_port('ActiveCamera', mc_11)
vtk_renderer.enable_output_port('Instance')
vtk_renderer.compute()
Instance_6 = vtk_renderer.get_output('Instance')



# MODULE 347 org.vistrails.vistrails.vtk:vtkRendererOutput
# CONNECTION value Instance_6
value = [Instance_6]
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(value[0].vtkInstance)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
renWin.SetSize(1024, 768)
iren.Initialize()
renWin.Render()
iren.Start()