com.openinventor.inventor.projectors

Class SbCylinderSheetProjector

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.projectors.SbProjector

com.openinventor.inventor.projectors.SbCylinderProjector

com.openinventor.inventor.projectors.SbCylinderSheetProjector

public class SbCylinderSheetProjector
extends SbCylinderProjector

Cylinder-sheet projector. SbCylinderSheetProjector projects a window space point (usually based on the mouse location) onto the surface of a cylinder with a hyperbolic sheet draped over it. This allows smooth transitions onto and off of the cylinder. Two projected points can produce a rotation along the cylinder's axis. When the mouse position projects on to the sheet, the rotations will be as if the sheet is being dragged, causing the cylinder to roll beneath it.

Incremental changes (delta rotation) can be computed during interactive sessions. Cylinder projectors are typically used to write interactive 3D manipulators and viewers.

See also:

SbCylinderSectionProjector, SbCylinderPlaneProjector, SbLineProjector, SbPlaneProjector, SbSpherePlaneProjector, SbSphereProjector, SbSphereSectionProjector, SbSphereSheetProjector

Nested Class Summary

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SbCylinderSheetProjector() Calls SbCylinderSheetProjector(true).
SbCylinderSheetProjector(boolean orientToEye) Constructor that uses a default cylinder aligned with the Y axis with radius 1.0.
SbCylinderSheetProjector(SbCylinder cyl) Calls SbCylinderSheetProjector(cyl, true).
SbCylinderSheetProjector(SbCylinder cyl, boolean orientToEye) Constructor.

Method Summary

Methods inherited from class com.openinventor.inventor.projectors.SbCylinderProjector

getCylinder, getRotation, isFront, isOrientToEye, isPointInFront, projectAndGetRotation, setCylinder, setFront, setOrientToEye

Methods inherited from class com.openinventor.inventor.projectors.SbProjector

copy, getViewVolume, getWorkingSpace, intersect, project, setViewVolume, setWorkingSpace

Methods inherited from class com.openinventor.inventor.Inventor

dispose, getAddress, getNativeResourceHandle, startInternalThreads, stopInternalThreads

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SbCylinderSheetProjector

public SbCylinderSheetProjector(SbCylinder cyl)

Calls SbCylinderSheetProjector(cyl, true).

SbCylinderSheetProjector

public SbCylinderSheetProjector()

Calls SbCylinderSheetProjector(true).

SbCylinderSheetProjector

public SbCylinderSheetProjector(boolean orientToEye)

Constructor that uses a default cylinder aligned with the Y axis with radius 1.0. The orientToEye parameter determines whether the sheet is perpendicular to the eye, or perpendicular to the cylinder's Z axis. Setting that parameter to true (the default) specifies that the plane be perpendicular to the eye, which is most often the desired behavior.

The default view volume is undefined, and the working space is identity.

SbCylinderSheetProjector

public SbCylinderSheetProjector(SbCylinder cyl,
                                boolean orientToEye)

Constructor. The orientToEye parameter determines whether the sheet is perpendicular to the eye, or perpendicular to the cylinder's Z axis. Setting that parameter to true (the default) specifies that the plane be perpendicular to the eye, which is most often the desired behavior.

The default view volume is undefined, and the working space is identity.