Aspose::Words::Rendering::NodeRendererBase::GetBoundsInPixels method
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]NodeRendererBase::GetBoundsInPixels(float, float) method
Calculates the bounds of the shape in pixels for a specified zoom factor and resolution.
System::Drawing::Rectangle Aspose::Words::Rendering::NodeRendererBase::GetBoundsInPixels(float scale, float dpi)
| Parameter | Type | Description |
|---|---|---|
| scale | float | The zoom factor (1.0 is 100%). |
| dpi | float | The resolution (horizontal and vertical) to convert from points to pixels (dots per inch). |
ReturnValue
The actual (as rendered on the page) bounding box of the shape in pixels.
Remarks
This method converts BoundsInPoints into rectangle in pixels.
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++
NodeRendererBase::GetBoundsInPixels(float, float, float) method
Calculates the bounds of the shape in pixels for a specified zoom factor and resolution.
System::Drawing::Rectangle Aspose::Words::Rendering::NodeRendererBase::GetBoundsInPixels(float scale, float horizontalDpi, float verticalDpi)
| Parameter | Type | Description |
|---|---|---|
| scale | float | The zoom factor (1.0 is 100%). |
| horizontalDpi | float | The horizontal resolution to convert from points to pixels (dots per inch). |
| verticalDpi | float | The vertical resolution to convert from points to pixels (dots per inch). |
ReturnValue
The actual (as rendered on the page) bounding box of the shape in pixels.
Remarks
This method converts BoundsInPoints into rectangle in pixels.
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++