ArcGIS Developer Help

IGlobeDrawingOrder Interface

Provides access to members that control the globe drawing order.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Description

IGlobeDrawingOrder Provides access to the layer drawing order. The methods, Movebackward, MoveForward, MoveToBack, and MoveToFront allow re-ordering of layers relative to each other from current drawing order, stored as OrderedLayers.

Members

	Name	Description
	MoveBackward	Moves a layer backward one position within the drawing order.
	MoveForward	Moves a layer forward one position within the drawing order.
	MoveRanks	Moves layers within the drawing order.
	MoveToBack	Moves a layer to the back of the drawing order.
	MoveToFront	Moves a layer to the front of the drawing order.
	MoveToLayer	Moves a layer within the drawing order.
	OrderedLayers	Layers in the drawing order.

Classes that implement IGlobeDrawingOrder

Classes	Description

[C#]

The code below illustrates how you can get the drawing order of the globe layers by their type (Draped, Floating, Elevation):

public void GetGlobeDrawingOrder()
{
//pGlobe is a variable of type IGlobe
IGlobeDisplay pGlbDisplay = pGlobe.GlobeDisplay;
IGlobeDrawingOrder pDrawOrder = (IGlobeDrawingOrder) pGlobe;

//Get the current draw order - this includes draped, floating and elevation
IEnumLayer pEnumLayer = pDrawOrder.OrderedLayers;

//Need to separate Draped from Elevation
IEnumLayer pBaseLayers;
IEnumLayer pFloatingLayers;

//Syntax
//variable = pGlobe.GlobeLayers(pUID, bRecursive, bInBaseGlobe, bSortedByDrawingPriority)

pBaseLayers = pGlobe.get_GlobeLayers(null,true,true,true);
pFloatingLayers = pGlobe.get_GlobeLayers(null,false,false,true);

/*weed out elevation layers from the ordered list...
note elevation layers are always on top of the ordered list
The ordered list for baselayers is:
(Top down)
Elevation0
Elevation1
Draped0
Draped1
....*/

IGlobeLayerProperties pGlobeLyrProps;
IGlobeDisplayLayers pGlbDispLyrs = (IGlobeDisplayLayers) pGlbDisplay;
//Create ArrayLists
ArrayList pDrapedLayers = new ArrayList();
ArrayList pElevationLayers = new ArrayList();

//Store the separate draw order (elevationa and draped) into ArrayLists
ILayer pLayer = pBaseLayers.Next();

while(pLayer != null)
{
  pGlobeLyrProps = pGlbDispLyrs.FindGlobeProperties(pLayer);
  if(pGlobeLyrProps.Type != esriGlobeDataType.esriGlobeDataElevation)
  {
   pDrapedLayers.Add(pLayer);
  }
  else if(pGlobeLyrProps.Type == esriGlobeDataType.esriGlobeDataElevation)
  {
   pElevationLayers.Add(pLayer);
  }

//Get the next layer
pLayer = pBaseLayers.Next();
}

//To get the layers from the ArrayLists - cast individual elements to ILayer
//For example getting the first layer in the list:
ILayer theDrapedLayer = (ILayer) pDrapedLayers[0];
ILayer theElevationLayer = (ILayer) pElevationLayers[0];

//Get the floating layers
ILayer theFloatingLayer = pFloatingLayers.Next();
while(theFloatingLayer != null)
{
  //code to work with theFloatingLayer
  theFloatingLayer = pFloatingLayers.Next();
}

}