private string ProcessDraw(DataTable dataTable, ref int dataTableIndex, out HbCurveArrArray hbCurveArrArray)
{
string returnValue = "";
hbCurveArrArray = new HbCurveArrArray();
HbCurveArray hbCurveArray = null;
if (dataTableIndex >= dataTable.Rows.Count - 1)
{
return("Program error: dataTable index value exceeded range.");
}
DataRow dataRow = dataTable.Rows[dataTableIndex];
string actionCurrent = dataRow[2].ToString();
int testNextIndex = dataTableIndex + 1;
if (testNextIndex > dataTable.Rows.Count - 1)
{
return("End of file encountered during Curve Array.");
}
bool continueLoop = true;
hbCurveArray = new HbCurveArray(); // Need to make new array at the start
List <HbXYZ> hbXyzList = null;
while (continueLoop)
{
dataRow = dataTable.Rows[dataTableIndex];
actionCurrent = dataRow[2].ToString();
string objectCurrent = dataRow[3].ToString();
switch (actionCurrent)
{
case "Use":
returnValue = ProcessUse(dataTable, ref dataTableIndex, out hbXyzList);
if (returnValue != "")
{
return(returnValue);
}
testNextIndex = dataTableIndex + 1;
if (testNextIndex > dataTable.Rows.Count - 1)
{
return("End of file encountered during Curve Array.");
}
break;
case "Draw":
// objectCurrent is not "CurveArray" first time since we are past that line when we entered the Draw state.
if (objectCurrent == "CurveArray") // Starting new loop
{
hbCurveArrArray.Add(hbCurveArray); // Capture the last array
hbCurveArray = new HbCurveArray(); // Start new array
}
else //Valid objectCurrent: "Line", "Arc", "NurbSpline", "Ellipse", "HermiteSpline"
{
if (hbXyzList == null)
{
hbXyzList = new GetHbXyzRow(dataRow).HbPoints;
}
HbCurve hbCurve;
returnValue = ProcessHbCurve(objectCurrent, dataRow, hbXyzList, out hbCurve);
if (returnValue != "")
{
return(returnValue);
}
hbCurveArray.HbCurves.Add(hbCurve);
hbXyzList = null; // So that the test above will work with the next item
}
break;
default:
return("Action '" + actionCurrent + "' encountered during Curve Array.");
}
testNextIndex = dataTableIndex + 1;
if (testNextIndex > dataTable.Rows.Count - 1)
{
return("End of file encountered during Curve Array.");
}
dataRow = dataTable.Rows[testNextIndex];
if (dataRow[2].ToString() == "Add")
{
continueLoop = false; // Next row will be the add statement so break loop
hbCurveArrArray.Add(hbCurveArray); // Capture the last one
}
else
{
dataTableIndex++;
}
} // Loop
return("");
}
public void Add(HbCurveArray hbCurveArray)
{
HbCurveArrays.Add(hbCurveArray);
}
