static void Main(string[] args)
{
CGX_NET pGeo = null;
CDB hDB = null;
CVV hVV = null;
CVM hVM = null;
CVA hVA = null;
Int32 iChan, iLine; // database symbols
int iVA, iL, iLines, iS;
double dValue;
DoubleVector dData;
// --- Usage ---
if (args.Length < 3)
{
Console.WriteLine("Usage: chanadd database channel value");
return;
}
try
{
// --- Initialize ---
pGeo = new CGX_NET("CHANADD", "V1", 2047, null, 0);
if (pGeo == null)
{
Console.WriteLine("Unable to start Geosoft session");
return;
}
// ---
// Open a database.
// Note that all databases created by normal Geosoft users will have
// user name "SUPER" with password "". Third-party or custom applications
// may create databases that require a user-name and password, in which
// case you require these values to open the database.
// ---
hDB = CDB.Open(args[0], "SUPER", "");
// --- Get the channel handle ---
iChan = hDB.FindSymb(args[1], CoreConstant.DB_SYMB_CHAN);
if (iChan == CoreConstant.NULLSYMB)
{
Console.WriteLine(args[1] + " channel not found in database " + args[0]);
return;
}
// --- Lock channel for read-writer ---
hDB.LockSymb(iChan, CoreConstant.DB_LOCK_READWRITE, CoreConstant.DB_WAIT_NONE);
// --- do we need a VV or a VA? ---
iVA = hDB.iGetColVA(iChan); // number of elements in a VA, 1 if its a VV
if (iVA == 1)
{
// --- Create a VV to hold data array ---
hVV = CVV.CreateExt(CoreConstant.GS_DOUBLE, 0);
}
else
{
// --- its a VA channel ---
hVA = CVA.CreateExt(CoreConstant.GS_DOUBLE, 0, iVA);
}
// --- Get a real VM to hold the data in memory ---
hVM = CVM.Create(CoreConstant.GS_REAL, 0);
// -- Get Value to add to data ---
dValue = Convert.ToDouble(args[2]);
// --- Count selected lines ---
iLines = hDB.iCountSelLines();
// --- Go through all selected lines ---
iL = 0;
iLine = hDB.FirstSelLine();
do
{
// --- Break if line is not a valid line ---
if (hDB.iIsLineValid(iLine) == 0)
{
break;
}
// --- Update progress ---
Console.WriteLine("Chanadd " + (iL + 1) + " of " + iLines + " Complete");
// --- Read Data ---
if (iVA == 1)
{
// --- get VV data ---
hDB.GetChanVV(iLine, iChan, hVV);
}
else
{
// --- get VA data ---
hDB.GetChanVA(iLine, iChan, hVA);
// ---
// Get the VV to the VA data. This VV contains all VA data
// by element, then by row. The VV is owned by the VA, so you
// cannot destroy the VA or the VV will become invalid.
// ---
hVV = hVA.GetFullVV();
}
// ---
// Get data VM from the VV. This will re-size the VM to
// hold all the data in the VV.
// ---
CVV.CopyVVtoVM(hVM, hVV);
// --- now get a pointer to the data ---
iS = hVV.iLength();
dData = CGX_NET.GetDoubleVM(hVM, iS);
//-----------------------------------------------------------------------
// MAIN MATH CODE
//-----------------------------------------------------------------------
for (int i = 0; i < iS; i++)
{
dData[i] += dValue;
}
// --- Put the VM data back in the VV ---
hVV.CopyVMtoVV(hVM);
// --- Write data back to the database ---
if (iVA == 1)
{
hDB.PutChanVV(iLine, iChan, hVV);
}
else
{
// ---
// Since the VA owned the VV, changing the VV data is the same as
// changing toe VA data. All I need to do is write the VA data.
// ---
hDB.PutChanVA(iLine, iChan, hVA);
}
// --- Advance to Next Line ---
iLine = hDB.NextSelLine(iLine);
iL++;
}while (true);
Console.WriteLine("ChanAdd Complete");
// --- Cleanup ---
hDB.UnLockSymb(iChan);
// ---
// Destroy any handles that were created. This is not really necessary since
// destroying a pGeo handle will destroy all classes. However, we considere it
// good practice to destroy your own instances since it ensures you are
// thinking about what instances you have created. You really do not want to
// keep class instances longer than you need them since they consume system
// resources that could be better used by other parts of your application.
// ---
if (hVM != null)
{
hVM.Dispose();
}
// --- be careful not to try to destroy a VV owned by a VA ---
if (hVV != null && (iVA != 1))
{
hVV.Dispose();
}
if (hVA != null)
{
hVA.Dispose();
}
hDB.Dispose();
}
catch (CERROR e)
{
Console.WriteLine("Error: " + e.Message);
}
catch (Exception ex)
{
Console.WriteLine("Error: " + ex.Message);
}
finally
{
if (pGeo != null)
{
pGeo.Dispose();
}
}
}
