Matrix.OrthoLH Method

Artigo
10/15/2009

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Builds a left-handed orthogonal projection matrix.

Namespace: Microsoft.WindowsMobile.DirectX
Assembly: Microsoft.WindowsMobile.DirectX (in Microsoft.WindowsMobile.DirectX.dll)

Syntax

'Declaration
Public Shared Function OrthoLH ( _
    width As Single, _
    height As Single, _
    znearPlane As Single, _
    zfarPlane As Single _
) As Matrix
'Usage
Dim width As Single
Dim height As Single
Dim znearPlane As Single
Dim zfarPlane As Single
Dim returnValue As Matrix

returnValue = Matrix.OrthoLH(width, _
    height, znearPlane, zfarPlane)

public static Matrix OrthoLH(
    float width,
    float height,
    float znearPlane,
    float zfarPlane
)

public:
static Matrix OrthoLH(
    float width, 
    float height, 
    float znearPlane, 
    float zfarPlane
)

static member OrthoLH : 
        width:float32 * 
        height:float32 * 
        znearPlane:float32 * 
        zfarPlane:float32 -> Matrix

Parameters

width
Type: System.Single
Width of the view volume.

height
Type: System.Single
Height of the view volume.

znearPlane
Type: System.Single
Minimum z-value of the view volume, which is referred to as z-near.

zfarPlane
Type: System.Single
Maximum z-value of the view volume, which is referred to as z-far.

Return Value

Type: Microsoft.WindowsMobile.DirectX.Matrix
A Matrix structure that is a left-handed orthogonal projection matrix.

Remarks

An orthogonal matrix is an invertible matrix for which the inverse is equal to the transpose.

All of the parameters of the OrthoLH method are distances in camera space. The parameters describe the dimensions of the view volume.

This method uses the following formula to compute the returned matrix.

2/width    0         0                                  0
0          2/height  0                                  0
0          0         1/(zfarPlane-znearPlane)           0
0          0         znearPlane/(znearPlane-zfarPlane)  1

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Platforms

Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Compact Framework

Supported in: 3.5, 2.0

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