/// <summary>
/// Adds the geometry fragment to the hidden mesh, if the model is not null
/// the fragment is placed on a sub layer of the correct style
/// the sub layer is automaticaly created if it does not exist.
/// </summary>
/// <param name="geomData"></param>
/// <param name="model"></param>
public void AddToHidden(XbimGeometryData geomData, IModel model = null)
{
int modelId = 0;
if (model != null)
{
modelId = model.UserDefinedId;
}
if (model != null && geomData.StyleLabel > 0) // check if we need to put this item on a sub layer
{
XbimMeshLayer <TMesh, TMaterial> subLayer;
var layerName = geomData.StyleLabel.ToString();
if (!_subLayerMap.Contains(layerName))
{
var style = model.Instances[geomData.StyleLabel] as IfcSurfaceStyle;
//create a sub layer
subLayer = new XbimMeshLayer <TMesh, TMaterial>(model, style)
{
Name = layerName
};
_subLayerMap.Add(subLayer);
}
else
{
subLayer = _subLayerMap[layerName];
}
subLayer.AddToHidden(geomData, null, (short)modelId);
}
else
{
AddToHidden(geomData, model, (short)modelId);
}
}
/// <summary>
/// Adds the geometry fragment to the hidden mesh, if the model is not null
/// the fragment is placed on a sub layer of the correct style
/// the sub layer is automaticaly created if it does not exist.
/// </summary>
/// <param name="geomData"></param>
/// <param name="model"></param>
public void AddToHidden(XbimGeometryData geomData, IModel model, short modelId)
{
var addingSuccessfull = Hidden.Add(geomData, modelId); // this is where the geometry is added to the main layer.
if (addingSuccessfull)
{
return;
}
//if the main layer is too big split it.
//try and find a sublayer that is a split of this, i.e. has the same texture
foreach (var sublayer in _subLayerMap.Reverse())
{
if (!Equals(sublayer.Style, Style))
{
continue;
}
sublayer.AddToHidden(geomData, model, modelId); //try and add the data to this mesh
return; //succeeded so return
}
//didn't find a layer to add it to so create a new one
var subLayer = new XbimMeshLayer <TMesh, TMaterial>(model, Style)
{
Name = Name + "-" + _subLayerMap.Count
};
_subLayerMap.Add(subLayer);
subLayer.Hidden.Add(geomData, modelId); //this should always pass as it is a new mesh and ifc geom rarely exceeds max mesh size, graphics cards will truncate anyway
}
protected override void InsertItem(int index, XbimMeshLayer <TVISIBLE, TMATERIAL> item)
{
XbimMeshLayer <TVISIBLE, TMATERIAL> removed = null;
if (index < Count)
{
removed = this[index];
}
base.InsertItem(index, item);
NotifyCollectionChangedEventHandler collChanged = _collectionChanged;
if (collChanged != null)
{
if (index == Count)
{
collChanged(this,
new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Replace, removed, index));
}
else
{
collChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, item));
NotifyCountChanged(Count - 1);
}
}
}
/// <summary>
/// Add the layer to the scene
/// </summary>
/// <param name="layer"></param>
public void Add(XbimMeshLayer <TVISIBLE, TMATERIAL> layer)
{
if (string.IsNullOrEmpty(layer.Name)) //ensure a layer has a unique name if the user has not defined one
{
layer.Name = "Layer " + _layers.Count();
}
if (!_layers.Contains(layer))
{
_layers.Add(layer);
}
}
protected override void RemoveItem(int index)
{
int oldCount = Count;
XbimMeshLayer <TVISIBLE, TMATERIAL> removed = this[index];
base.RemoveItem(index);
NotifyCollectionChangedEventHandler collChanged = _collectionChanged;
if (collChanged != null)
{
collChanged(this,
new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, removed, index));
}
NotifyCountChanged(oldCount);
}
public MeshInfo(XbimMeshFragment mf, XbimMeshLayer <TMesh, TMaterial> xbimMeshLayer)
{
_mf = mf;
_xbimMeshLayer = xbimMeshLayer;
}
protected override string GetKeyForItem(XbimMeshLayer <TVISIBLE, TMATERIAL> item)
{
return(item.Name);
}