examples/pyvisi/offscreen.py

"""
Author: Ken Steube
"""

# Example of creating an image in a file (without the need for an X connection)

# Import the necessary modules.
from esys.pyvisi import Scene, DataCollector, Map, ImageReader, Image, Camera
from esys.pyvisi import GlobalPosition
from esys.pyvisi.constant import *
import os

PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
X_SIZE = 400
Y_SIZE = 400

SCALAR_FIELD_POINT_DATA = "temperature"
FILE_3D = "interior_3D.xml"
LOAD_IMAGE_NAME = "flinders.jpg"
JPG_RENDERER = Renderer.OFFLINE_JPG

# Create a Scene.
s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE, 
        y_size = Y_SIZE)

# Create a DataCollector reading from a XML file.
dc1 = DataCollector(source = Source.XML)
dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))

# Create a Map.
m1 = Map(scene = s, data_collector = dc1, viewport = Viewport.SOUTH_WEST,
        lut = Lut.COLOR, cell_to_point = False, outline = True)
m1.setOpacity(0.3)

# Create an ImageReader (in place of DataCollector).
ir = ImageReader(ImageFormat.JPG)
ir.setImageName(image_name =  os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \
        LOAD_IMAGE_NAME))

# Create an Image.
i = Image(scene = s, image_reader = ir, viewport = Viewport.SOUTH_WEST)
i.setOpacity(opacity = 0.9)
i.translate(0,0,-1)
i.setPoint1(GlobalPosition(2,0,0))
i.setPoint2(GlobalPosition(0,2,0))

# Create a Camera. 
c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)

# Render the image.
print "Creating image file ./offscreen.jpg"
s.render(image_name = "offscreen.jpg")

1	"""
2	Author: Ken Steube
3	"""
4
5	# Example of creating an image in a file (without the need for an X connection)
6
7	# Import the necessary modules.
8	from esys.pyvisi import Scene, DataCollector, Map, ImageReader, Image, Camera
9	from esys.pyvisi import GlobalPosition
10	from esys.pyvisi.constant import *
11	import os
12
13	PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
14	PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
15	X_SIZE = 400
16	Y_SIZE = 400
17
18	SCALAR_FIELD_POINT_DATA = "temperature"
19	FILE_3D = "interior_3D.xml"
20	LOAD_IMAGE_NAME = "flinders.jpg"
21	JPG_RENDERER = Renderer.OFFLINE_JPG
22
23	# Create a Scene.
24	s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE,
25	y_size = Y_SIZE)
26
27	# Create a DataCollector reading from a XML file.
28	dc1 = DataCollector(source = Source.XML)
29	dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
30
31	# Create a Map.
32	m1 = Map(scene = s, data_collector = dc1, viewport = Viewport.SOUTH_WEST,
33	lut = Lut.COLOR, cell_to_point = False, outline = True)
34	m1.setOpacity(0.3)
35
36	# Create an ImageReader (in place of DataCollector).
37	ir = ImageReader(ImageFormat.JPG)
38	ir.setImageName(image_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \
39	LOAD_IMAGE_NAME))
40
41	# Create an Image.
42	i = Image(scene = s, image_reader = ir, viewport = Viewport.SOUTH_WEST)
43	i.setOpacity(opacity = 0.9)
44	i.translate(0,0,-1)
45	i.setPoint1(GlobalPosition(2,0,0))
46	i.setPoint2(GlobalPosition(0,2,0))
47
48	# Create a Camera.
49	c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
50
51	# Render the image.
52	print "Creating image file ./offscreen.jpg"
53	s.render(image_name = "offscreen.jpg")
54