private void OpenContext()
{
//try to open Kinect Context
try
{
FContext = new Context();
FContext.ErrorStateChanged += FContext_ErrorStateChanged;
/* var devices = FContext.EnumerateProductionTrees(OpenNI.NodeType.Depth, null);
*
* foreach (var device in devices)
* FDevices.Add(device.CreationInfo, device);
*
* string[] deviceNames = new string[FDevices.Count];
* FDevices.Keys.CopyTo(deviceNames, 0);
* EnumManager.UpdateEnum("OpenNIDevices", deviceNames[0], deviceNames);
*
* Query q = new Query();
* q.SetCreationInfo(deviceNames[0]);
* var depths = FContext.EnumerateProductionTrees(OpenNI.NodeType.Depth, q);
*
* //here is one central depth generator that is used by downstream nodes like depth, user, hand, skeleton,..
* //since this is one central generator it should not be allowed to disable it downstream
* foreach (var depth in depths)*/
FDepthGenerator = (DepthGenerator)FContext.CreateAnyProductionTree(OpenNI.NodeType.Depth, null); // .CreateProductionTree(depth);
FDepthGenerator.StartGenerating();
//creation of usergenerators requires generation of depthgenerator
//depth node needs imagegenerator to adaptview
//read out driver versions:
var v = OpenNI.Version.Current;
FOpenNI = "OpenNI: " + v.Major + "." + v.Minor + "." + v.Maintenance + "." + v.Build;
//create a usergenerator here just for getting the NITE version
var user = FContext.CreateAnyProductionTree(OpenNI.NodeType.User, null);
v = user.Info.Description.Version;
FMiddleware = user.Info.Description.Vendor + " " + user.Info.Description.Name + ": " + v.Major + "." + v.Minor + "." + v.Maintenance + "." + v.Build;
user.Dispose();
v = FDepthGenerator.Info.Description.Version;
FSensor = FDepthGenerator.Info.Description.Vendor + " " + FDepthGenerator.Info.Description.Name + ": " + v.Major + "." + v.Minor + "." + v.Maintenance + "." + v.Build;
}
catch (Exception e)
{
FLogger.Log(e);
}
}
//called when data for any output pin is requested
public void Evaluate(int SpreadMax)
{
if (FContextChanged)
{
if (FContextIn.PluginIO.IsConnected)
{
if (FContextIn[0] != null)
{
try
{
FDepthGenerator = (DepthGenerator)FContextIn[0].GetProductionNodeByName("Depth1");
FFov[0] = new Vector2D(FDepthGenerator.FieldOfView.HorizontalAngle, FDepthGenerator.FieldOfView.VerticalAngle) * (float)VMath.RadToCyc;
FHistogram = new int[FDepthGenerator.DeviceMaxDepth];
//Set the resolution of the texture
var mapMode = FDepthGenerator.MapOutputMode;
FTexWidth = mapMode.XRes;
FTexHeight = mapMode.YRes;
//Reinitalie the vvvv texture
Reinitialize();
FContextChanged = false;
}
catch (Exception ex)
{
FLogger.Log(ex);
}
}
}
else
{
CleanUp();
FContextChanged = false;
}
}
if (FDepthGenerator != null)
{
if (FEnabledIn.IsChanged)
{
if (FEnabledIn[0])
{
FDepthGenerator.StartGenerating();
}
else
{
FDepthGenerator.StopGenerating();
}
}
bool imageGeneratorChanged = false;
try
{
var imageGenerator = (ImageGenerator)FContextIn[0].GetProductionNodeByName("Image1");
if (FImageGenerator != imageGenerator)
{
FImageGenerator = imageGenerator;
imageGeneratorChanged = true;
}
}
catch
{}
if (FAdaptView.IsChanged || imageGeneratorChanged)
{
if (FImageGenerator == null || !FAdaptView[0])
{
FDepthGenerator.AlternativeViewpointCapability.ResetViewpoint();
}
else
{
FDepthGenerator.AlternativeViewpointCapability.SetViewpoint(FImageGenerator);
}
}
if (FDepthGenerator.IsDataNew)
{
Update();
}
}
}