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Matrix3x2F::Scale(FLOAT, FLOAT, D2D1_POINT_2F) method

Creates a scale transformation that has the specified scale factors and center point.

Syntax


static Matrix3x2F Scale(
   FLOAT         x,
   FLOAT         y,
   D2D1_POINT_2F centerPoint = D2D1::Point2F()
);

Parameters

x

Type: FLOAT

The x-axis scale factor of the scale transformation.

y

Type: FLOAT

The y-axis scale factor of the scale transformation.

centerPoint

Type: D2D1_POINT_2F

The point about which the scale is performed.

Return value

Type: Matrix3x2F

The new scale transformation.

Remarks

This method creates a scale transformation for the specified centerPoint and the x-axis and y-axis scale factors. If you prefer to create a D2D1_SIZE_F structure to store the scale factors, call the other Scale method.

The following illustration shows the size of the square increased to 130% in both dimensions. The center point of the scaling is the upper-left corner of the square.

Illustration of a square scaled by 130% in the x-direction and y-direction

For an example, see How to Scale an Object.

Requirements

Minimum supported client

Windows 7, Windows Vista with SP2 and Platform Update for Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 R2, Windows Server 2008 with SP2 and Platform Update for Windows Server 2008 [desktop apps only]

Minimum supported phone

Windows Phone 8.1 [Windows Phone Silverlight 8.1 and Windows Runtime apps]

Namespace

D2D1

Header

D2d1helper.h

Library

D2d1.lib

DLL

D2d1.dll

See also

Matrix3x2F

 

 

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