BuildingCoder.CmdCollectorPerformance.IsElementHiddenInView C# (CSharp) Метод

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IsElementHiddenInView() приватный Метод

Checks whether a given Revit element 'e' is hidden in a specified view 'v'. If v has a crop box defined, e is considered hidden if its bounding box is outside or less than 25% contained in the crop box. If e is not eliminated as hidden by that test, its IsHidden predicate is checked, followed by the visibility of its category and all its parent categories in the given view. Return true if the given element e is hidden in the view v. This might be due to: - e lies outside the view crop box - e is specifically hidden in the view, by element - the category of e or one of its parent categories is hidden in v.

private IsElementHiddenInView ( Element e, View v ) : bool
e	Element
v	View
Результат	bool

        bool IsElementHiddenInView(
            Element e,
            View v)
        {
            if( v.CropBoxActive )
              {
            BoundingBoxXYZ viewBox = v.CropBox;
            BoundingBoxXYZ elBox = e.get_BoundingBox( v );

            Transform transInv = v.CropBox.Transform.Inverse;

            elBox.Max = transInv.OfPoint( elBox.Max );
            elBox.Min = transInv.OfPoint( elBox.Min );

            // The transform above might switch
            // max and min values.

            if( elBox.Min.X > elBox.Max.X )
            {
              XYZ tmpP = elBox.Min;
              elBox.Min = new XYZ( elBox.Max.X, elBox.Min.Y, 0 );
              elBox.Max = new XYZ( tmpP.X, elBox.Max.Y, 0 );
            }

            if( elBox.Min.Y > elBox.Max.Y )
            {
              XYZ tmpP = elBox.Min;
              elBox.Min = new XYZ( elBox.Min.X, elBox.Max.Y, 0 );
              elBox.Max = new XYZ( tmpP.X, elBox.Min.Y, 0 );
            }

            if( elBox.Min.X > viewBox.Max.X
              || elBox.Max.X < viewBox.Min.X
              || elBox.Min.Y > viewBox.Max.Y
              || elBox.Max.Y < viewBox.Min.Y )
            {
              return true;
            }
            else
            {
              BoundingBoxXYZ inside = new BoundingBoxXYZ();

              double x, y;

              x = elBox.Max.X;

              if( elBox.Max.X > viewBox.Max.X )
            x = viewBox.Max.X;

              y = elBox.Max.Y;

              if( elBox.Max.Y > viewBox.Max.Y )
            y = viewBox.Max.Y;

              inside.Max = new XYZ( x, y, 0 );

              x = elBox.Min.X;

              if( elBox.Min.X < viewBox.Min.X )
            x = viewBox.Min.X;

              y = elBox.Min.Y;

              if( elBox.Min.Y < viewBox.Min.Y )
            y = viewBox.Min.Y;

              inside.Min = new XYZ( x, y, 0 );

              double eBBArea = ( elBox.Max.X - elBox.Min.X )
            * ( elBox.Max.Y - elBox.Min.Y );

              double einsideArea =
            ( inside.Max.X - inside.Min.X )
            * ( inside.Max.Y - inside.Min.Y );

              double factor = einsideArea / eBBArea;

              if( factor < 0.25 )
            return true;
            }
              }

              bool hidden = e.IsHidden( v );

              if( !hidden )
              {
            Category cat = e.Category;

            while( null != cat && !hidden )
            {
              hidden = !cat.get_Visible( v );
              cat = cat.Parent;
            }
              }
              return hidden;
        }

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