Package com.openinventor.inventor

Class SbBox3f

java.lang.Object
com.openinventor.inventor.SbBasic
com.openinventor.inventor.SbBox3f
Direct Known Subclasses:
SbXfBox3f
public class SbBox3f extends SbBasic
3D box class. 3D box which has planes parallel to the major axes and is specified by two points on a diagonal. This class is part of the standard Open Inventor datatype classes and is used as input and output to geometry operations (see SoGetBoundingBoxAction).

See Also:

  • Field Details

    • array

      public final float[] array

  • Constructor Details

    • SbBox3f

      public SbBox3f(SbBox3f copyFrom)

    • SbBox3f

      public SbBox3f(float[] components)

    • SbBox3f

      public SbBox3f(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)
      Constructor for a 3D float box. xmin , ymin , zmin , xmax , ymax and zmax are the bounds of the box.

    • SbBox3f

      public SbBox3f()
      Constructor for a 3D float box. The box is initially empty.

    • SbBox3f

      public SbBox3f(SbVec3f _min, SbVec3f _max)
      Constructor for a 3D float box. m_min and m_max are the corners of the diagonal that define the box.

  • Method Details

    • setValue

      public SbBox3f setValue(float[] components, int startIndex)

    • setValue

      public SbBox3f setValue(float[] components)

    • getValue

      public float[] getValue()

    • setValue

      public void setValue(SbBox3f copyFrom)

    • computeMaxDistance2

      public float computeMaxDistance2(SbVec3f p)
      Returns the squared maximum distance between a point and the 8 bounding box's vertices.

    • transform

      public void transform(SbMatrix m)
      Transforms box by matrix, enlarging box to contain result.

    • extendBy

      public void extendBy(SbBox3f bb)
      Extends this box (if necessary) to contain the specified box.

    • getVolume

      public float getVolume()
      Returns the volume of the box.

    • triangleBoxOverlap

      public boolean triangleBoxOverlap(SbVec3f u0, SbVec3f u1, SbVec3f u2)
      Return true if the given triangle intersects the bounding box. Note that intersection considers the whole box, not just the border. Therefore a triangle completely inside the box will return true.

    • toArray

      public static SbBox3f[] toArray(long nativeArray, long length)

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

    • getSpan

      public float[] getSpan(SbVec3f direction)
      Finds the span of a box along a specified direction. The span is the total distance the box occupies along a given direction. The total distance is returned in the form of a minimum and maximum distance from the origin of each of the corners of the box along the given direction. The difference between these two values is the span.

    • outside

      public int outside(SbMatrix MVP)
      Returns true if bounding box is completely outside the view-volume defined by the model+view+projection matrix given. "cullBits" keeps track of which view-volume clipping planes the box is completely inside of; if a 'parent' bounding box of this bounding box was found to be completely inside the left/right clipping planes, the low bit of cullBits will be set to zero, and this routine will not test this box against those planes. When cullBits is zero, it is a waste of time to call this function! Before calling this the first time, set cullBits to 7 (SoGLRenderAction and SoSeparator will handle this automatically for render culling).

    • getMax

      public SbVec3f getMax()
      Returns the maximum point of the box. The maximum point is the corner of the box with the highest X, Y, and Z values.

    • setBounds

      public void setBounds(float xmin, float ymin, float zmin, float xmax, float ymax, float zmax)
      Sets the corners of the box.

    • getMin

      public SbVec3f getMin()
      Returns the minimum point of the box. The minimum point is the corner of the box with the lowest X, Y, and Z values.

    • setBounds

      public void setBounds(SbVec3f _min, SbVec3f _max)
      Sets the corners of the box.

    • contains

      public boolean contains(SbBox3f bb)
      Returns true if the specified box is fully contained inside this box.

    • intersect

      public boolean intersect(SbVec3f pt)
      Returns true if the specified point intersects this box.

    • extendBy

      public void extendBy(SbVec3f pt)
      Extends this box (if necessary) to contain the specified point.

    • intersect

      public boolean intersect(SbBox3f bb)
      Returns true if the specified box intersects this box.

    • intersection

      public SbBox3f intersection(SbBox3f box)
      Returns the intersection of the specified box with this box. Returned box is empty if there is no intersection.

    • getCenter

      public SbVec3f getCenter()
      Returns the center of the box.

    • makeEmpty

      public void makeEmpty()
      Makes an empty box.

    • isEmpty

      public boolean isEmpty()
      Returns true if the box is empty, and false otherwise. Note: Setting the box to all zeros does not make it "empty". Use the makeEmpty() method. (This method only returns true if the maximum X value is less than the minimum X value.)

    • hasVolume

      public boolean hasVolume()
      Returns true if all three dimensions of the box have positive size, and false otherwise.

    • getSize

      public SbVec3f getSize()
      Gets box size.

    • getMinMax

      public SbVec3f[] getMinMax()
      Gets the corners of the box.

    • getBounds

      public float[] getBounds()
      Gets the corners of the box.

    • getClosestPoint

      public SbVec3f getClosestPoint(SbVec3f point)
      Returns the closest point on the box to the given point. (Returns the point on the center of the Z face if passed the center.)

    • getOrigin

      public float[] getOrigin()
      Gets box origin which is the same as the minimum corner of the box.