References ▼
Retrieves an LVectorBase class object as the for the graphics data at a specified index in the graphic segment.
#include "ltwrappr.h"
LVectorBase * LNITFFile::GetVector(uIndex)
A zero-based index of the graphic data in the NITF file.
| Value | Meaning |
|---|---|
| ! NULL | The function was successful and an LVectorBase class object will be returned. |
| NULL | An error occurred. |
To change the graphic data in the graphic segment in the NITF file at specified index, call the LNITFFile::SetVector function.
When the returned LVectorBase class object is no longer needed, it should be freed by calling LVectorBase::Free function.
For every successful call to [LNITFFile:GetVector, there must be a call to LVectorBase::Free to free this returned LVectorBase class object.
L_INT LNITFFile_GetVectorExample(){//parse the NITF fileLNITFFile Nitf;Nitf.Create (MAKE_IMAGE_PATH(TEXT("test.ntf")));L_UINT uFlags = 0;L_UINT uCount;L_UINT i = 0;L_TCHAR szFile[MAX_PATH];// Check if the NITF file is empty or invaliduFlags = Nitf.GetStatus ();if((uFlags & NITF_FILE_EMPTY) == NITF_FILE_EMPTY){MessageBox(NULL, TEXT("NITF file is empty"), 0, 0);return SUCCESS;}if((uFlags & NITF_FILE_VALID) != NITF_FILE_VALID){MessageBox(NULL, TEXT("NITF file is invalid"), 0, 0);return SUCCESS;}// Save all the graphic segments into separated filesuCount = Nitf.GetGraphicHeaderCount();for( i = 0; i < uCount; ++i){_stprintf_s(szFile, MAKE_IMAGE_PATH(TEXT("GraphicSeg%d.cgm")), i+1);Nitf.GetVector(i)->Save(szFile, FILE_CGM);}Nitf.Destroy();return SUCCESS;}