/// <summary>
/// initialize member data, judge simple precondition
/// </summary>
private Floor InitFloor(ref Reference refer, ref CurveArray curves)
{
ElementSet elems = m_currentDoc.Selection.Elements;
//selected 0 or more than 1 element
if (elems.Size != 1)
{
string msg = "Please select exactly one slab.";
ApplicationException appEx = new ApplicationException(msg);
throw appEx;
}
Floor floor = null;
foreach (object o in elems)
{
//selected one floor
floor = o as Floor;
if (null == floor)
{
string msg = "Please select exactly one slab.";
ApplicationException appEx = new ApplicationException(msg);
throw appEx;
}
}
//check the shape is rectangular and get its edges
GeomHelper helper = new GeomHelper();
if (!helper.GetFloorGeom(floor, ref refer, ref curves))
{
ApplicationException appEx = new
ApplicationException(
"Your selection is not a structural rectangular horizontal slab.");
throw appEx;
}
return floor;
}
