/*--------------- R e a d P w l F c n F i l e ( ) ---------------
PURPOSE
Read in a pwlFcn file.
INPUT PARAMETERS
cmdLine -- the execute command command line.
pwlFcn -- the pwlFcn list.
*/
void ReadPwlFcnFile(string cmdLine, DblLinkedList &pwlFcn)
{
ifstream pwlFcnStream; // The input stream
string pwlFcnFile; // The input file name
// Ask for the file name and then open the file.
pwlFcnFile = GetFileName(cmdLine);
if (pwlFcnFile.length() == 0)
return;
pwlFcnStream.open(pwlFcnFile.c_str());
if (!pwlFcnStream.is_open())
{
cout << "*** ERROR: No such file " << pwlFcnFile << endl;
return;
}
// Read in the entire pwlFcn file.
while (pwlFcnStream.peek() != EOF)
{
Point point; // Next input point
pwlFcnStream >> point;
pwlFcn.InsertItem(point);
}
pwlFcnStream.close();
pwlFcn.Rewind();
}
/*--------------- I n s e r t P o i n t ( ) ---------------
PURPOSE
Insert a new point in the pwlFcn before the current point.
INPUT PARAMETERS
cmdLine -- the execute command command line.
pwlFcn -- the pwlFcn list.
*/
void InsertPoint(string cmdLine, DblLinkedList &pwlFcn)
{
const unsigned MinCmdSize = 2; // To check for an empty insert command
Point point; // New pwlFcn point
istringstream cmdStream(cmdLine.erase(0,1)); // Command stream
// Ignore if empty add parameters.
if (cmdLine.length() < MinCmdSize)
return;
// Read the new point and insert it into the pwlFcn.
cmdStream.clear();
cmdStream >> point;
if (cmdStream.fail() && !cmdStream.eof())
{
cout << "Usage: I x y" << endl;
cmdStream.clear();
return;
}
pwlFcn.InsertItem(point);
}