public int RequestData(
	int resolution,
	SbBox3i32 subVolume0,
	SbLine line,
	SoBufferObject bufferObj
)

Public Function RequestData ( 
	resolution As Integer,
	subVolume0 As SbBox3i32,
	line As SbLine,
	bufferObj As SoBufferObject
) As Integer

public:
int RequestData(
	int resolution, 
	SbBox3i32 subVolume0, 
	SbLine line, 
	SoBufferObject^ bufferObj
)

member RequestData : 
        resolution : int * 
        subVolume0 : SbBox3i32 * 
        line : SbLine * 
        bufferObj : SoBufferObject -> int 

Parameters

resolution

Type: SystemInt32

subVolume0

Type: OIV.InventorSbBox3i32

line

Type: OIV.InventorSbLine

bufferObj

Type: OIV.Inventor.DevicesSoBufferObject

Return Value

The resolution is the power of 2 of the desired subsampling level (0:1/1, 1:1/2, 2:1/4, ...). NOTE: The data is copied.

Returns a request ID. If requestID is positive, this value will be passed to the OIV.LDM.SoLDMDataAccess.EndRequest(System.Int32) method when the requested data is ready, and can then be used with the getRequestedData method to complete the transaction. If requestID is negative, the data is already in memory, so endRequest will not be called, and -requestID (a positive value) should be used with the getRequestedData method.

Call this method with buffer = NULL to get the required size of the application buffer (in the bufferSize member of OIV.LDM.SoLDMDataAccess.DataInfoLine). Limitations :

• it is not possible to perform an asynchronous data request within GLRender action

  

Reference