OpenGLContext.move.direct

Interactions for navigating the context

Classes

class Direct( MovementManager ):

OpenGLContext's original manipulation for the view platform

backward( self , event )

(callback) Move platform backward by STEPDISTANCE

triggers redraw after completion

down( self , event )

(callback) Move platform downward by STEPDISTANCE

triggers redraw after completion

faster( self , event )

Increase our walking speed

forward( self , event )

(callback) Move platform forward by STEPDISTANCE

triggers redraw after completion

left( self , event )

(callback) Move platform left by STEPDISTANCE

triggers redraw after completion

right( self , event )

(callback) Move platform right by STEPDISTANCE

triggers redraw after completion

slower( self , event )

Decrease our walking speed

stepRelative( self , x = 0 , y = 0 , z = 0 )

Step this distance in relative (view) coordinates

straighten( self , event )

(callback) Straightens the platform orientation

Attempts to make the orientation equal to the y-axis orientation of the current orientation.

In other words, tries to make the camera's horizon equal to the object-space horizon (the x,z plane) without altering the y-axis orientation.

See: OpenGLContext.viewplatform.ViewPlatform.straighten

triggers redraw after completion

turn( self , deltaOrientation = (0, 1, 0, 0.7853981633974483) )

Apply rotation within the current orientation

In essence, this allows you to "turn your head" which gives you the commonly useful ability to function from your own frame of reference.

For example: turn( 1,0,0,angle ) will rotate the camera up from its current view orientation turn( 0,1,0,angle ) will rotate the camera about the current horizon

This method is implemented almost entirely within the quaternion class. Quaternion's have considerable advantages for this type of work, as they do not become "warped" with successive rotations.

turndown( self , event )

(callback) Rotates "head" forward (looks downward) by TURNANGLE

triggers redraw after completion

turnleft( self , event )

(callback) Rotates "head" to the left by TURNANGLE

triggers redraw after completion

turnright( self , event )

(callback) Rotates "head" to the right by TURNANGLE

triggers redraw after completion

turnup( self , event )

(callback) Rotates "head" backward (looks upward) by TURNANGLE

triggers redraw after completion

up( self , event )

(callback) Move platform upward by STEPDISTANCE

triggers redraw after completion