orthographic-view.md

OrthographicView Class (Experimental)

The [OrthographicView] class is a subclass of View that creates a perspective view using classic "3D camera" view state parameters.

To render, OrthographicView needs to be used together with a viewState with the following parameters:

• eye (Number[3]) - The eye position in world coordinates.
• lookAt (Number[3]) - The position being looked at.
• up (Number[3]) - The up direction.

For more information on using View classes, consult the Views article.

Constructor

new OrthographicView({left: 0, top: 0, width: 500, height: 500});

The OrthographicView constructor takes the same parameters as the View superclass constructor, plus the following orthographic projection matrix arguments:

• near (Number, optional) - Distance of near clipping plane. Default to 1.
• far (Number, optional) - Distance of far clipping plane. Default to 100.
• left (Number) - Left bound of the frustum
• top (Number) - Top bound of the frustum
• right (Number, optional) - Right bound of the frustum. Automatically calculated if not provided.
• bottom (Number, optional) - Bottom bound of the frustum. Automatically calculated if not provided.

Methods

Inherits all Viewport methods.

Remarks

• When zooming with orthographic view, the size (width and height) of the view and window are no longer the same. In such case, specify right and bottom together with left and top explicitly to define the view size.
• Refer to examples/experimental/orthographic-zooming for example.

Source

modules/core/src/core/views/orthographic-view.js