GetBoundsInPixels

GetBoundsInPixels(float, float)

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

public Rectangle GetBoundsInPixels(float scale, float dpi)
ParameterTypeDescription
scaleSingleThe zoom factor (1.0 is 100%).
dpiSingleThe resolution (horizontal and vertical) to convert from points to pixels (dots per inch).

Return Value

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.

Document doc = new Document(MyDir + "Office math.docx");

OfficeMath officeMath = (OfficeMath)doc.GetChild(NodeType.OfficeMath, 0, true);
OfficeMathRenderer renderer = new OfficeMathRenderer(officeMath);

// Verify the size of the image that the OfficeMath object will create when we render it.
Assert.AreEqual(119.0f, renderer.SizeInPoints.Width, 0.25f);
Assert.AreEqual(13.0f, renderer.SizeInPoints.Height, 0.1f);

Assert.AreEqual(119.0f, renderer.BoundsInPoints.Width, 0.25f);
Assert.AreEqual(13.0f, renderer.BoundsInPoints.Height, 0.1f);

// Shapes with transparent parts may contain different values in the "OpaqueBoundsInPoints" properties.
Assert.AreEqual(119.0f, renderer.OpaqueBoundsInPoints.Width, 0.25f);
Assert.AreEqual(14.2f, renderer.OpaqueBoundsInPoints.Height, 0.1f);

// Get the shape size in pixels, with linear scaling to a specific DPI.
Rectangle bounds = renderer.GetBoundsInPixels(1.0f, 96.0f);

Assert.AreEqual(159, bounds.Width);
Assert.AreEqual(18, bounds.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.AreEqual(159, bounds.Width);
Assert.AreEqual(28, bounds.Height);

// The opaque bounds may vary here also.
bounds = renderer.GetOpaqueBoundsInPixels(1.0f, 96.0f);

Assert.AreEqual(159, bounds.Width);
Assert.AreEqual(18, bounds.Height);

bounds = renderer.GetOpaqueBoundsInPixels(1.0f, 96.0f, 150.0f);

Assert.AreEqual(159, bounds.Width);
Assert.AreEqual(30, bounds.Height);

See Also

GetBoundsInPixels(float, float, float)

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

public Rectangle GetBoundsInPixels(float scale, float horizontalDpi, float verticalDpi)
ParameterTypeDescription
scaleSingleThe zoom factor (1.0 is 100%).
horizontalDpiSingleThe horizontal resolution to convert from points to pixels (dots per inch).
verticalDpiSingleThe vertical resolution to convert from points to pixels (dots per inch).

Return Value

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.

Document doc = new Document(MyDir + "Office math.docx");

OfficeMath officeMath = (OfficeMath)doc.GetChild(NodeType.OfficeMath, 0, true);
OfficeMathRenderer renderer = new OfficeMathRenderer(officeMath);

// Verify the size of the image that the OfficeMath object will create when we render it.
Assert.AreEqual(119.0f, renderer.SizeInPoints.Width, 0.25f);
Assert.AreEqual(13.0f, renderer.SizeInPoints.Height, 0.1f);

Assert.AreEqual(119.0f, renderer.BoundsInPoints.Width, 0.25f);
Assert.AreEqual(13.0f, renderer.BoundsInPoints.Height, 0.1f);

// Shapes with transparent parts may contain different values in the "OpaqueBoundsInPoints" properties.
Assert.AreEqual(119.0f, renderer.OpaqueBoundsInPoints.Width, 0.25f);
Assert.AreEqual(14.2f, renderer.OpaqueBoundsInPoints.Height, 0.1f);

// Get the shape size in pixels, with linear scaling to a specific DPI.
Rectangle bounds = renderer.GetBoundsInPixels(1.0f, 96.0f);

Assert.AreEqual(159, bounds.Width);
Assert.AreEqual(18, bounds.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.AreEqual(159, bounds.Width);
Assert.AreEqual(28, bounds.Height);

// The opaque bounds may vary here also.
bounds = renderer.GetOpaqueBoundsInPixels(1.0f, 96.0f);

Assert.AreEqual(159, bounds.Width);
Assert.AreEqual(18, bounds.Height);

bounds = renderer.GetOpaqueBoundsInPixels(1.0f, 96.0f, 150.0f);

Assert.AreEqual(159, bounds.Width);
Assert.AreEqual(30, bounds.Height);

See Also

NodeRendererBase.SizeInPoints NodeRendererBase.GetOpaqueBoundsInPixels