// ********** The Root Element ***********

Entity BIMProject;
 Entity Object;
  Name: String; //Name of entity
END_Entity;

// ********** The 4 SpatialStructure Classes ***********

Entity BIMSite;
 Entity Object;
  Name: String; //Name of entity
  PSet: PSet; //Property Set of this Object
 Entity Product;
  Placement: Placement; //Placement of this entity
  Representation: Representation; //Representation of this entity
 Entity SpatialStructure;
  [List of any other SpatialStructure Entity]; //a list of any SpatialStructure can be appended here
  [List of any other BldgElement Entity]; //a list of any BldgElement can be appended here
 Entity BIMSite;  
END_Entity;


Entity BIMBldg;
 Entity Object;
  Name: String; //Name of entity
  PSet: PSet; //Property Set of this Object
 Entity Product;
  Placement: Placement; //Placement of this entity
 Entity SpatialStructure;
  [List of any other SpatialStructure Entity]; //a list of any SpatialStructure can be appended here
  [List of any other BldgElement Entity]; //a list of any BldgElement can be appended here
 Entity BIMBldg;  
END_Entity;


Entity BIMFloor;
 Entity Object;
  Name: String; //Name of entity
  PSet: PSet; //Property Set of this Object
 Entity Product; 
  Placement : Placement; //Placement of this entity
  Note: the Placement of BIMFloor can only have a Z value - all other values are zero
  Representation: Representation; //Representation of this entity
 Entity SpatialStructure;
  [List of any other SpatialStructure Entity]; //a list of any SpatialStructure can be appended here
  [List of any other BldgElement Entity]; //a list of any BldgElement can be appended here
 Entity BIMFloor;
  FloorIndex: uint;     //Floor Index
  FloorHeight: double;  //Floor to Floor Height
END_Entity;


Entity BIMSpace;
 Entity Object;
  Name: String; //Name of entity
  PSet: PSet; //Property Set of this Object
 Entity Product;
  Placement : Placement; //Placement of this entity
  Representation: Representation; //Representation of this entity
 Entity SpatialStructure;
  [List of any other SpatialStructure Entity]; //a list of any SpatialStructure can be appended here
  [List of any other BldgElement Entity]; //a list of any BldgElement can be appended here
 Entity BIMSpace;
  CATName:String //Name of the Category Name of a space entry , must present here in this version, can be set as empty string
  CATCode:String //Code of the Category Name of a space entry , must present here in this version, can be set as empty string
END_Entity;

//*********** End of the 4 Spatial Structure Classes **************/




//**************** BldgElement Class**********************/
Entity BIMSlab;
 Entity Object;
  Name: String; //Name of entity
  PSet: PSet; //Property Set of this Object
 Entity Product;
  Placement : Placement; //Placement of this entity
  Representation: Representation; //Representation of this entity
 Entity BldgElement;
 Entity BIMSlab;
END_Entity;


Entity BIMFurn;
 Entity Object;
  Name: String; //Name of entity
  PSet: PSet; //Property Set of this Object
 Entity Product;
  Placement : Placement; //Placement of this entity
  Representation: Representation; //Representation of this entity
 Entity BldgElement;
 Entity BIMFurn;
END_Entity;

//**************** End of the BldgElement Class ****************/




//*********** PSet related Class*********************/
Entity PSet
 Entity PSet;
  [List of PSetAttrib: PSetAttrib ]; //A List of PSetAttrib, the list can be a mix of  simple Attribute : Attrib and  complex Attribute: ComplexAttrib
  
EndEntity;

Entity Attrib;
 Entity PSetAttrib;
 Entity Attrib;
  Name: String; //Name of this PSet Attribute
  Value: String; //Value of this PSet Attribute
EndEntity;

Entity ComplexAttrib;
 Entity PSetAttrib;
 Entity ComplexAttrib;
  Name: String;  //Name of this ComplexAttrib Attribue
  [List of PSetAttrib: PSetAttrib ]; //A List of PSetAttrib, the list can be a mix of  simple Attribute : Attrib and  complex Attribute: ComplexAttrib
EndEntity;


//Note that ComplexAttrib is for Array type of Pset Attribute, usage example is as follow:
For One dimension array, the XML is set like this:
<PSet>
  <Attrib Name="testParam2" Value="abcdef" />
  <ComplexAttrib Name="testArray_1D">
   <Attrib Name="1" Value="D" />
   <Attrib Name="2" Value="E" />
   <Attrib Name="3" Value="F" />
  </ComplexAttrib>
</PSet>
Note that the "Name" of <ComplexAttrib> should match with the name of the parameter of the Space/Object.
For each of the <Attrib> inside this <Complex Attrib>, the "Name" of <Attrib> will be the row number, and the <Value> will be its value.
So the above example will push parameters to an Array param called "testArray_1D" like this:
testArray_1D[1]="D"
testArray_1D[2]="E"
testArray_1D[3]="F"


For Two dimensional array, the XML is set like this:
<PSet>
  <ComplexAttrib Name="testArray_2D">
   <ComplexAttrib Name="1">
    <Attrib Name="1" Value="1" />
    <Attrib Name="2" Value="3" />
    <Attrib Name="3" Value="5" />
   </ComplexAttrib>
   <ComplexAttrib Name="2">
    <Attrib Name="1" Value="2" />
    <Attrib Name="2" Value="4" />
    <Attrib Name="3" Value="6" />
   </ComplexAttrib>
  </ComplexAttrib>
</PSet> 

Note that the "Name" of first <ComplexAttrib> should match with the name of the parameter of the Space/Object.
In the next level of <ComplexAttrib>, its "Name" will be the Column number of the array.
Then for each of the <Attrib> inside this <Complex Attrib>, the "Name" of <Attrib> will be the row number, and the <Value> will be its value.

So the above example will push parameters to an Array param called "testArray_2D" like this:
testArray_2D[1][1]="1"
testArray_2D[2][1]="3"
testArray_2D[3][1]="5"
testArray_2D[1][2]="2"
testArray_2D[2][2]="4"
testArray_2D[3][2]="6" 

//************ End of PSet related class************/




//***********  Geometry Structure Class **************/
Entity Placement;
 Entity Placement;
  Rotation:double;  //Rotation Angle, in radian
  MirrorY:Boolean;  //Is it being mirror in Y Axis , this is only used for furnishing element and is irrelevant with the SpatialStructure classes
  x: double; //x coordinate of the placement;
  y: double; //y coordinate of the placement;
  z: double; //z coordinate of the placement;
END_Entity;

Entity ExtrudedAreaSolid;
 Entity Representation;
 Entity ExtrudedAreaSolid;
  Depth: double ; // Depth of the extrusion
  [List of CurveProfile]; // 1st CurveProfile is the outter profile of this extrusion| Addition CurveProfile is the inner profile (holes) of this extrusion
END_Entity;

Entity CurveProfile;
 Entity Representaion;
 Entity CurveProfile;
  [List of Points];
  [List of Arcs];
EndEntity;

Entity Points;
 Entity Representation;
 Entity Points;
  [List of 
   x: double; //X coordinates of Point
   y: double; //Y coordinates of Point
  ] //Build the Points Entity list like <Points> x1,y1,;x2,y2;x3,y3 </Points> etc 
EndEntity;

Entity Arcs;
 Entity Representation;
 Entity Arcs;
  [List of
   Start Point Index: uint; //Starting Point index of this Arc 
   centerX:double; X coordinate of the center of this arc
   centerY:double; Y coordinate of the center of this arc
   bIsAntiClockwise:boolean; is this arc Anticlockwise, 0=false (clockwise), 1=true (anitclockwise)
EndEntity;
//*********** End of Geometry Structure class **************/