NodeRendererBase class
NodeRendererBase class
Base class for ShapeRenderer and OfficeMathRenderer. To learn more, visit the Working with Shapes documentation article.
Properties
| Name | Description |
|---|---|
| bounds_in_points | Gets the actual bounds of the shape in points. |
| opaque_bounds_in_points | Gets the opaque bounds of the shape in points. |
| size_in_points | Gets the actual size of the shape in points. |
Methods
| Name | Description |
|---|---|
| get_bounds_in_pixels(scale, dpi) | Calculates the bounds of the shape in pixels for a specified zoom factor and resolution. |
| get_bounds_in_pixels(scale, horizontal_dpi, vertical_dpi) | Calculates the bounds of the shape in pixels for a specified zoom factor and resolution. |
| get_opaque_bounds_in_pixels(scale, dpi) | Calculates the opaque bounds of the shape in pixels for a specified zoom factor and resolution. |
| get_opaque_bounds_in_pixels(scale, horizontal_dpi, vertical_dpi) | Calculates the opaque bounds of the shape in pixels for a specified zoom factor and resolution. |
| get_size_in_pixels(scale, dpi) | Calculates the size of the shape in pixels for a specified zoom factor and resolution. |
| get_size_in_pixels(scale, horizontal_dpi, vertical_dpi) | Calculates the size of the shape in pixels for a specified zoom factor and resolution. |
| save(file_name, save_options) | Renders the shape into an image and saves into a file. |
| save(file_name, save_options) | Renders the shape into an SVG image and saves into a file. |
| save(stream, save_options) | Renders the shape into an image and saves into a stream. |
| save(stream, save_options) | Renders the shape into an SVG image and saves into a stream. |
Examples
Shows how to measure and scale shapes.
doc = aw.Document(MY_DIR + "Office math.docx")
office_math = doc.get_child(aw.NodeType.OFFICE_MATH, 0, True).as_office_math()
renderer = aw.rendering.OfficeMathRenderer(office_math)
# Verify the size of the image that the OfficeMath object will create when we render it.
self.assertAlmostEqual(119.0, renderer.size_in_points.width, delta=0.25)
self.assertAlmostEqual(13.0, renderer.size_in_points.height, delta=0.1)
self.assertAlmostEqual(119.0, renderer.bounds_in_points.width, delta=0.25)
self.assertAlmostEqual(13.0, renderer.bounds_in_points.height, delta=0.1)
# Shapes with transparent parts may contain different values in the "opaque_bounds_in_points" properties.
self.assertAlmostEqual(119.0, renderer.opaque_bounds_in_points.width, delta=0.25)
self.assertAlmostEqual(14.2, renderer.opaque_bounds_in_points.height, delta=0.1)
# Get the shape size in pixels, with linear scaling to a specific DPI.
bounds = renderer.get_bounds_in_pixels(1.0, 96.0)
self.assertEqual(159, bounds.width)
self.assertEqual(18, bounds.height)
# Get the shape size in pixels, but with a different DPI for the horizontal and vertical dimensions.
bounds = renderer.get_bounds_in_pixels(1.0, 96.0, 150.0)
self.assertEqual(159, bounds.width)
self.assertEqual(28, bounds.height)
# The opaque bounds may vary here also.
bounds = renderer.get_opaque_bounds_in_pixels(1.0, 96.0)
self.assertEqual(159, bounds.width)
self.assertEqual(18, bounds.height)
bounds = renderer.get_opaque_bounds_in_pixels(1.0, 96.0, 150.0)
self.assertEqual(159, bounds.width)
self.assertEqual(30, bounds.height)
See Also
- module aspose.words.rendering