Lesson48 Namespace Reference

Draw function for Lesson 48. More...

Functions
def	Initialize (Width, Height)
def	Upon_Drag (cursor_x, cursor_y)
def	Upon_Click (button, button_state, cursor_x, cursor_y)
def	Torus (MinorRadius, MajorRadius)
def	Draw ()

Variables
float	PI2 = 2.0 * 3.1415926535
	g_Transform = Matrix4fT()
	g_LastRot = Matrix3fT()
	g_ThisRot = Matrix3fT()
	g_ArcBall = ArcBallT(640, 480)
bool	g_isDragging = False
	g_quadratic = None

Detailed Description

Draw function for Lesson 48.

http://pydoc.net/Python/PyOpenGL-Demo/3.0.1b1/PyOpenGL-Demo.NeHe.lesson48.Lesson48/

Function Documentation

Draw()

def Lesson48.Draw

(

)

References Torus().

Initialize()

def Lesson48.Initialize	(		Width,
			Height
	)

Referenced by NeHeGL.main().

Torus()

def Lesson48.Torus	(		MinorRadius,
			MajorRadius
	)

Referenced by Draw().

Upon_Click()

def Lesson48.Upon_Click	(		button,
			button_state,
			cursor_x,
			cursor_y
	)

 Mouse button clicked.
        Glut calls this function when a mouse button is
        clicked or released.

References ArcBall.Matrix3fSetIdentity(), ArcBall.Matrix4fSetRotationFromMatrix3f(), and ArcBall.Point2fT().

Upon_Drag()

def Lesson48.Upon_Drag	(		cursor_x,
			cursor_y
	)

 Mouse cursor is moving
        Glut calls this function (when mouse button is down)
        and pases the mouse cursor postion in window coords as the mouse moves.

References ArcBall.Matrix3fMulMatrix3f(), ArcBall.Matrix3fSetRotationFromQuat4f(), ArcBall.Matrix4fSetRotationFromMatrix3f(), and ArcBall.Point2fT().

Variable Documentation

g_ArcBall

Lesson48.g_ArcBall = ArcBallT(640, 480)

g_isDragging

bool Lesson48.g_isDragging = False

g_LastRot

Lesson48.g_LastRot = Matrix3fT()

g_quadratic

Lesson48.g_quadratic = None

g_ThisRot

Lesson48.g_ThisRot = Matrix3fT()

g_Transform

Lesson48.g_Transform = Matrix4fT()

PI2

float Lesson48.PI2 = 2.0 * 3.1415926535