v1.0

Computes the bounding box of a list of objects.

Note: This command uses output arguments. C# and some scripting languages (such as JScript, PerlScript and Python) don't support arguments passed by reference so you need to use the best workaround for your situation:

For scripting languages this command returns an ISIVTCollection which you can use to get the output arguments.

For C# you can use the XSIApplication.ExecuteCommand method to call this command. ExecuteCommand packs the output arguments into a C# System.Object containing an Array of the output arguments (see Calling Commands from C#).

GetBBox( [InputObj], [FineComputation], [LowerBoundX], [LowerBoundY], [LowerBoundZ], [UpperBoundX], [UpperBoundY], [UpperBoundZ] );

Parameter	Type	Description
InputObj	String	List of objects. Default Value: Current selection
FineComputation	Boolean	True to compute the bounding box on the surface, False to compute the bounding box on the control points. Default Value: FALSE
LowerBoundX	Double	Returns the lower X coordinate of the bounding box.
LowerBoundY	Double	Returns the lower Y coordinate of the bounding box.
LowerBoundZ	Double	Returns the lower Z coordinate of the bounding box.
UpperBoundX	Double	Returns the upper X coordinate of the bounding box.
UpperBoundY	Double	Returns the upper Y coordinate of the bounding box.
UpperBoundZ	Double	Returns the upper Z coordinate of the bounding box.

1. JScript Example

NewScene( null, false ) ;

var oSphere = ActiveSceneRoot.AddGeometry( "Sphere", "MeshSurface", "MySphere" ) ;

oSphere.PosX = 2 ;

oSphere.PosY = -1 ;

var oTorus = ActiveSceneRoot.AddGeometry( "Torus", "NurbsSurface", "MyTorus" ) ;

oTorus.PosX = 2 ;

oTorus.PosY = 5 ;

var oObjs = new ActiveXObject("XSI.Collection") ;

oObjs.Add( oSphere  ) ;

oObjs.Add( oTorus ) ;

var aRtn = GetBBox( oObjs ) ;

xmin = aRtn.value( "LowerBoundX" );

ymin = aRtn.value( "LowerBoundY" );

zmin = aRtn.value( "LowerBoundZ" );

xmax = aRtn.value( "UpperBoundX" );

ymax = aRtn.value( "UpperBoundY" );

zmax = aRtn.value( "UpperBoundZ" );

LogMessage( "Lower Bound: " + xmin + " / " + ymin + " / " + zmin ) ;

LogMessage( "Upper Bound: " + xmax + " / " + ymax + " / " + zmax ) ;

// Build a Cube that shows the bounding box

var oCube = ActiveSceneRoot.AddPrimitive("Cube") ;

oCube.length = 1 ;

oCube.PosX = ( xmax + xmin ) / 2 ;

oCube.PosY = ( ymax + ymin ) / 2 ;

oCube.PosZ = ( zmax + zmin ) / 2 ;

oCube.sclx = xmax - xmin ;

oCube.scly = ymax - ymin ;

oCube.sclz = zmax - zmin ;

2. VBScript Example

dim xmin, ymin, zmin, xmax, ymax, zmax

dim list

set list = GetValue( "SelectionList" )

GetBBox list, FALSE, xmin, ymin, zmin, xmax, ymax, zmax

LogMessage "Lower Bound: " & xmin & " / " & ymin & " / " & zmin

LogMessage "Upper Bound: " & xmax & " / " & ymax & " / " & zmax

Geometry.GetBoundingBox Geometry.GetBoundingCapsule Geometry.GetBoundingSphere