## NodeRendererBase::GetOpaqueBoundsInPixels(float, float) method


Calculates the opaque bounds of the shape in pixels for a specified zoom factor and resolution.

```cpp
System::Drawing::Rectangle Aspose::Words::Rendering::NodeRendererBase::GetOpaqueBoundsInPixels(float scale, float dpi)
```


| Parameter | Type | Description |
| --- | --- | --- |
| scale | float | The zoom factor (1.0 is 100%). |
| dpi | float | The resolution to convert from points to pixels (dots per inch). |

### ReturnValue

The opaque rectangle of the shape in pixels.
## Remarks


This method converts [OpaqueBoundsInPoints](../get_opaqueboundsinpoints/) into rectangle in pixels and it is useful when you want to create a bitmap for rendering the shape with only opaque part of the shape.

## Examples



Shows how to measure and scale shapes. 
```cpp
auto doc = System::MakeObject<Aspose::Words::Document>(System::String(get_MyDir() + u"Office math.docx"));

auto officeMath = System::ExplicitCast<Aspose::Words::Math::OfficeMath>(doc->GetChild(NodeType::OfficeMath, 0, true));
auto renderer = System::MakeObject<Aspose::Words::Rendering::OfficeMathRenderer>(officeMath);

// Verify the size of the image that the OfficeMath object will create when we render it.
ASSERT_NEAR(122.0f, renderer->get_SizeInPoints().get_Width(), 0.25f);
ASSERT_NEAR(13.0f, renderer->get_SizeInPoints().get_Height(), 0.15f);

ASSERT_NEAR(122.0f, 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(119.5f, 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);
System::String dpi96 = u"DPI 96";
ASSERT_EQ(163, bounds.get_Width()) << (dpi96);
ASSERT_EQ(18, bounds.get_Height()) << (dpi96);

// 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);
System::String dpi96150 = u"DPI 96 150";
ASSERT_EQ(163, bounds.get_Width()) << (dpi96150);
ASSERT_EQ(27, bounds.get_Height()) << (dpi96150);

// The opaque bounds may vary here also.
bounds = renderer->GetOpaqueBoundsInPixels(1.0f, 96.0f);
System::String dpi96Opaque = u"DPI 96 Opaque";
ASSERT_EQ(160, bounds.get_Width()) << (dpi96Opaque);
ASSERT_EQ(19, bounds.get_Height()) << (dpi96Opaque);

bounds = renderer->GetOpaqueBoundsInPixels(1.0f, 96.0f, 150.0f);
System::String dpi96150Opaque = u"DPI 96 150 Opaque";
ASSERT_EQ(160, bounds.get_Width()) << (dpi96150Opaque);
ASSERT_EQ(29, bounds.get_Height()) << (dpi96150Opaque);
```

## See Also

* Class [NodeRendererBase](../)
* Namespace [Aspose::Words::Rendering](../../)
* Library [Aspose.Words for C++](../../../)
## NodeRendererBase::GetOpaqueBoundsInPixels(float, float, float) method


Calculates the opaque bounds of the shape in pixels for a specified zoom factor and resolution.

```cpp
System::Drawing::Rectangle Aspose::Words::Rendering::NodeRendererBase::GetOpaqueBoundsInPixels(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 opaque rectangle of the shape in pixels.
## Remarks


This method converts [OpaqueBoundsInPoints](../get_opaqueboundsinpoints/) into rectangle in pixels and it is useful when you want to create a bitmap for rendering the shape with only opaque part of the shape.

## Examples



Shows how to measure and scale shapes. 
```cpp
auto doc = System::MakeObject<Aspose::Words::Document>(System::String(get_MyDir() + u"Office math.docx"));

auto officeMath = System::ExplicitCast<Aspose::Words::Math::OfficeMath>(doc->GetChild(NodeType::OfficeMath, 0, true));
auto renderer = System::MakeObject<Aspose::Words::Rendering::OfficeMathRenderer>(officeMath);

// Verify the size of the image that the OfficeMath object will create when we render it.
ASSERT_NEAR(122.0f, renderer->get_SizeInPoints().get_Width(), 0.25f);
ASSERT_NEAR(13.0f, renderer->get_SizeInPoints().get_Height(), 0.15f);

ASSERT_NEAR(122.0f, 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(119.5f, 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);
System::String dpi96 = u"DPI 96";
ASSERT_EQ(163, bounds.get_Width()) << (dpi96);
ASSERT_EQ(18, bounds.get_Height()) << (dpi96);

// 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);
System::String dpi96150 = u"DPI 96 150";
ASSERT_EQ(163, bounds.get_Width()) << (dpi96150);
ASSERT_EQ(27, bounds.get_Height()) << (dpi96150);

// The opaque bounds may vary here also.
bounds = renderer->GetOpaqueBoundsInPixels(1.0f, 96.0f);
System::String dpi96Opaque = u"DPI 96 Opaque";
ASSERT_EQ(160, bounds.get_Width()) << (dpi96Opaque);
ASSERT_EQ(19, bounds.get_Height()) << (dpi96Opaque);

bounds = renderer->GetOpaqueBoundsInPixels(1.0f, 96.0f, 150.0f);
System::String dpi96150Opaque = u"DPI 96 150 Opaque";
ASSERT_EQ(160, bounds.get_Width()) << (dpi96150Opaque);
ASSERT_EQ(29, bounds.get_Height()) << (dpi96150Opaque);
```

## See Also

* Class [NodeRendererBase](../)
* Namespace [Aspose::Words::Rendering](../../)
* Library [Aspose.Words for C++](../../../)