Aspose::Words::Rendering::OfficeMathRenderer class
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]OfficeMathRenderer class
Provides methods to render an individual OfficeMath to a raster or vector image or to a Graphics object. To learn more, visit the Working with OfficeMath documentation article.
class OfficeMathRenderer : public Aspose::Words::Rendering::NodeRendererBase
Methods
| Method | Description |
|---|---|
| get_BoundsInPoints() const | Gets the actual bounds of the shape in points. |
| get_OpaqueBoundsInPoints() | Gets the opaque bounds of the shape in points. |
| get_SizeInPoints() | Gets the actual size of the shape in points. |
| GetBoundsInPixels(float, float) | Calculates the bounds of the shape in pixels for a specified zoom factor and resolution. |
| GetBoundsInPixels(float, float, float) | Calculates the bounds of the shape in pixels for a specified zoom factor and resolution. |
| GetOpaqueBoundsInPixels(float, float) | Calculates the opaque bounds of the shape in pixels for a specified zoom factor and resolution. |
| GetOpaqueBoundsInPixels(float, float, float) | Calculates the opaque bounds of the shape in pixels for a specified zoom factor and resolution. |
| GetSizeInPixels(float, float) | Calculates the size of the shape in pixels for a specified zoom factor and resolution. |
| GetSizeInPixels(float, float, float) | Calculates the size of the shape in pixels for a specified zoom factor and resolution. |
| GetType() const override | |
| Is(const System::TypeInfo&) const override | |
| NodeRendererBase() | |
| OfficeMathRenderer(const System::SharedPtr<Aspose::Words::Math::OfficeMath>&) | Initializes a new instance of this class. |
| RenderToScale(const System::SharedPtr<System::Drawing::Graphics>&, float, float, float) | Renders the shape into a Graphics object to a specified scale. |
| RenderToSize(const System::SharedPtr<System::Drawing::Graphics>&, float, float, float, float) | Renders the shape into a Graphics object to a specified size. |
| Save(const System::String&, System::SharedPtr<Aspose::Words::Saving::ImageSaveOptions>) | Renders the shape into an image and saves into a file. |
| Save(const System::String&, System::SharedPtr<Aspose::Words::Saving::SvgSaveOptions>) | Renders the shape into an SVG image and saves into a file. |
| Save(const System::SharedPtr<System::IO::Stream>&, System::SharedPtr<Aspose::Words::Saving::ImageSaveOptions>) | Renders the shape into an image and saves into a stream. |
| Save(const System::SharedPtr<System::IO::Stream>&, System::SharedPtr<Aspose::Words::Saving::SvgSaveOptions>) | Renders the shape into an SVG image and saves into a stream. |
| Save(std::basic_ostream<CharType, Traits>&, System::SharedPtr<Aspose::Words::Saving::ImageSaveOptions>) | |
| Save(std::basic_ostream<CharType, Traits>&, System::SharedPtr<Aspose::Words::Saving::SvgSaveOptions>) | |
| static Type() |
Examples
Shows how to measure and scale shapes.
auto doc = MakeObject<Document>(MyDir + u"Office math.docx");
auto officeMath = System::ExplicitCast<OfficeMath>(doc->GetChild(NodeType::OfficeMath, 0, true));
auto renderer = MakeObject<OfficeMathRenderer>(officeMath);
// Verify the size of the image that the OfficeMath object will create when we render it.
ASSERT_NEAR(122, renderer->get_SizeInPoints().get_Width(), 0.25f);
ASSERT_NEAR(13.0f, renderer->get_SizeInPoints().get_Height(), 0.15f);
ASSERT_NEAR(122, renderer->get_BoundsInPoints().get_Width(), 0.25f);
ASSERT_NEAR(13.0f, renderer->get_BoundsInPoints().get_Height(), 0.15f);
// Shapes with transparent parts may contain different values in the "OpaqueBoundsInPoints" properties.
ASSERT_NEAR(122, renderer->get_OpaqueBoundsInPoints().get_Width(), 0.25f);
ASSERT_NEAR(14.2f, renderer->get_OpaqueBoundsInPoints().get_Height(), 0.1f);
// Get the shape size in pixels, with linear scaling to a specific DPI.
System::Drawing::Rectangle bounds = renderer->GetBoundsInPixels(1.0f, 96.0f);
ASSERT_EQ(163, bounds.get_Width());
ASSERT_EQ(18, bounds.get_Height());
// Get the shape size in pixels, but with a different DPI for the horizontal and vertical dimensions.
bounds = renderer->GetBoundsInPixels(1.0f, 96.0f, 150.0f);
ASSERT_EQ(163, bounds.get_Width());
ASSERT_EQ(27, bounds.get_Height());
// The opaque bounds may vary here also.
bounds = renderer->GetOpaqueBoundsInPixels(1.0f, 96.0f);
ASSERT_EQ(163, bounds.get_Width());
ASSERT_EQ(19, bounds.get_Height());
bounds = renderer->GetOpaqueBoundsInPixels(1.0f, 96.0f, 150.0f);
ASSERT_EQ(163, bounds.get_Width());
ASSERT_EQ(29, bounds.get_Height());
See Also
- Class NodeRendererBase
- Namespace Aspose::Words::Rendering
- Library Aspose.Words for C++