spyre.spyre.PrecessingCamera

Package spyre :: Module spyre :: Class PrecessingCamera

Type PrecessingCamera

 Camera --+    
          |    
BasicCamera --+
              |
             PrecessingCamera

A precessing camera orbits around the z axis at a given distance from it and height above the x-y plane.

Method Summary
	`__init__(self, engine, distance, height, rate, center, up)`
	`calc(self)` Recalculate postion of eye
	`refresh(self)` Update calculated position
Inherited from Camera
	`displayBackground(self)` Clear the display, or alternate prelim treatment.
	`displayViewport(self)` Push the viewport params to OpenGL.
	`restoreInit(self)` Restore previously saved initialization state.
	`saveInit(self)` Save state of initialization internally for later restoration.
	`setup(self)` Overridable for things to be done before use, but after engine and interface are initialized.
	`setViewport(self, left, top, right, bottom)` Record desired viewport (left, top, right, bottom).
	`zoomIn(self, factor)` Zoom in.
	`zoomOut(self, factor)` Zoom out.
Inherited from object
	`__delattr__(...)` x.__delattr__('name') <==> del x.name
	`__getattribute__(...)` x.__getattribute__('name') <==> x.name
	`__hash__(x)` x.__hash__() <==> hash(x)
	`__new__(T, S, ...)` T.__new__(S, ...) -> a new object with type S, a subtype of T
	`__reduce__(...)` helper for pickle
	`__reduce_ex__(...)` helper for pickle
	`__repr__(x)` x.__repr__() <==> repr(x)
	`__setattr__(...)` x.__setattr__('name', value) <==> x.name = value
	`__str__(x)` x.__str__() <==> str(x)

Property Summary
Inherited from Camera
	`center`: Track center position
	`eye`: Track eye position

Instance Variable Summary
Inherited from Camera
	`objects`: Each camera keeps a list of displayable objects.

Method Details

Recalculate postion of eye

Update calculated position

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