public Result Execute(
ExternalCommandData commandData,
ref String message,
ElementSet elements)
{
UIApplication app = commandData.Application;
UIDocument uidoc = app.ActiveUIDocument;
Document doc = uidoc.Document;
Element e = Util.SelectSingleElement(
uidoc, "a line or wall" );
LocationCurve curve = null;
if( null == e )
{
message = "No element selected";
}
else
{
curve = e.Location as LocationCurve;
}
if( null == curve )
{
message = "No curve available";
}
else
{
XYZ p = curve.Curve.GetEndPoint( 0 );
XYZ q = curve.Curve.GetEndPoint( 1 );
Debug.WriteLine( "Start point "
+ Util.PointString( p ) );
Debug.WriteLine( "End point "
+ Util.PointString( q ) );
// the angle between the vectors from the project origin
// to the start and end points of the wall is pretty irrelevant:
double a = p.AngleTo( q );
Debug.WriteLine(
"Angle between start and end point vectors = "
+ Util.AngleString( a ) );
XYZ v = q - p;
XYZ vx = XYZ.BasisX;
a = vx.AngleTo( v );
Debug.WriteLine(
"Angle between points measured from X axis = "
+ Util.AngleString( a ) );
XYZ z = XYZ.BasisZ;
a = vx.AngleOnPlaneTo( v, z );
Debug.WriteLine(
"Angle around measured from X axis = "
+ Util.AngleString( a ) );
if( e is Wall )
{
Wall wall = e as Wall;
XYZ w = z.CrossProduct( v ).Normalize();
if( wall.Flipped ) { w = -w; }
a = vx.AngleOnPlaneTo( w, z );
Debug.WriteLine(
"Angle pointing out of wall = "
+ Util.AngleString( a ) );
}
}
foreach( ProjectLocation location
in doc.ProjectLocations )
{
ProjectPosition projectPosition
= location.get_ProjectPosition( XYZ.Zero );
double pna = projectPosition.Angle;
Debug.WriteLine(
"Angle between project north and true north "
+ Util.AngleString( pna ) );
}
return Result.Failed;
}
