Matrix.CreateOrthographicOffCenter Method (Single, Single, Single, Single, Single, Single)

Artikel
08/15/2012

Builds a customized, orthogonal projection matrix.

Syntax

'Declaration
Public Shared Function CreateOrthographicOffCenter ( _
         left As Single, _
         right As Single, _
         bottom As Single, _
         top As Single, _
         zNearPlane As Single, _
         zFarPlane As Single _
) As Matrix

public static Matrix CreateOrthographicOffCenter (
         float left,
         float right,
         float bottom,
         float top,
         float zNearPlane,
         float zFarPlane
)

public:
static Matrix CreateOrthographicOffCenter(
         float left,
         float right,
         float bottom,
         float top,
         float zNearPlane,
         float zFarPlane
)

Parameters

left
Type: Single
Minimum x-value of the view volume.
right
Type: Single
Maximum x-value of the view volume.
bottom
Type: Single
Minimum y-value of the view volume.
top
Type: Single
Maximum y-value of the view volume.
zNearPlane
Type: Single
Minimum z-value of the view volume.
zFarPlane
Type: Single
Maximum z-value of the view volume.

Return Value

Type: Matrix
The projection matrix.

Remarks

Projection space refers to the space after applying projection transformation from view space. After the projection transformation, visible content has x and y coordinates ranging from -1 to 1, and z coordinates ranging from 0 to 1.

Unlike perspective projection, in orthographic projection there is no perspective foreshortening.

The viewable area of this orthographic projection extends from left to right on the x-axis, bottom to top on the y-axis, and zNearPlane to zFarPlane on the z-axis. These values are relative to the position and x, y, and z-axes of the view.

To obtain the viewable area (in world space) of a scene, create a BoundingFrustum and pass the combined view and projection matrix to the constructor.

Requirements

Namespace: Microsoft.Xna.Framework

Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)

Platforms

Windows Phone

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