gleSpiral

Sweep an arbitrary contour along a helical path.

Signature

gleSpiral( int( ncp ) , gleDouble[][2]( contour ) , gleDouble[][2]( cont_normal ) , gleDouble[3]( up ) , gleDouble( startRadius ) , gleDouble( drdTheta ) , gleDouble( startZ ) , gleDouble( dzdTheta ) , gleDouble[2][3]( startXform ) , gleDouble[2][3]( dXformdTheta ) , gleDouble( startTheta ) , gleDouble( sweepTheta ) )-> void
gleSpiral( contour , cont_normal , up , startRadius , drdTheta , startZ , dzdTheta , startXform , dXformdTheta , startTheta , sweepTheta ) 
gleSpiral( c_int(ncp), arrays.GLdoubleArray(contour), arrays.GLdoubleArray(cont_normal), arrays.GLdoubleArray(up), gleDouble(startRadius), gleDouble(drdTheta), gleDouble(startZ), gleDouble(dzdTheta), arrays.GLdoubleArray(startXform), arrays.GLdoubleArray(dXformdTheta), gleDouble(startTheta), gleDouble(sweepTheta) ) -> None

Parameters

VariablesDescription
ncp
number of contour points
contour
2D contour
cont_normal
2D contour normals
up
up vector for contour
startRadius
spiral starts in x-y plane
drdTheta
change in radius per revolution
startZ
starting z value
dzdTheta
change in Z per revolution
startXform
starting contour affine transformation
dXformdTheta
tangent change xform per revolution
startTheta
start angle in x-y plane
sweepTheta
degrees to spiral around

See Also

gleLathe

Sample Code References

The following code samples have been found which appear to reference the functions described here. Take care that the code may be old, broken or not even use PyOpenGL.

gleSpiral
OpenGLContext OpenGLContext/scenegraph/extrusions.py Lines: 204

Copyright Notices