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This document is archived and information here might be outdated. Recommended version. |
IGlobeCamera.GetAccurateViewDirection Method (ArcObjects .NET 10.4 SDK)
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This document is archived and information here might be outdated. Recommended version. |
| ArcObjects namespaces > GlobeCore > ESRI.ArcGIS.GlobeCore > Interfaces > IG > IGlobeCamera Interface > IGlobeCamera.GetAccurateViewDirection Method (ArcObjects .NET 10.4 SDK) |
Get the high precision normalized view direction.
[Visual Basic .NET] Public Sub GetAccurateViewDirection ( _ ByRef pViewX As Double, _ ByRef pViewY As Double, _ ByRef pViewZ As Double _ )
[C#] public void GetAccurateViewDirection ( ref double pViewX, ref double pViewY, ref double pViewZ );
[C++]
HRESULT GetAccurateViewDirection(
double* pViewX,
double* pViewY,
double* pViewZ
);
[C++]
Parameters pViewX [out] pViewX is a parameter of type double pViewY [out] pViewY is a parameter of type double pViewZ [out] pViewZ is a parameter of type double
Get the high precision normalized view direction. The x, y and z values returned will create a 3D vector with a unit length of 1.
The following code shows that the x, y and z values returned will create a 3D vector with a unit length of 1.
..
ESRI.ArcGIS.GlobeCore.IGlobeDisplay globeDisplay=globe.GlobeDisplay;
ESRI.ArcGIS.Analyst3D.ISceneViewer sceneViewer=globeDisplay.ActiveViewer;
ESRI.ArcGIS.Analyst3D.ICamera camera=sceneViewer.Camera;
ESRI.ArcGIS.GlobeCore.IGlobeCamera globeCamera=(ESRI.ArcGIS.GlobeCore.IGlobeCamera)camera;
double viewX, viewY, viewZ;
globeCamera.GetAccurateViewDirection(out viewX, out viewY, out viewZ);
bool isVectorThreeD;
// Check if the magnitude of the resulting vector=1
if (Math.Sqrt(Math.Pow(viewX, 2) + Math.Pow(viewY, 2) + Math.Pow(viewZ, 2)) == 1)
{
isVectorThreeD=true;
}
else
{
isVectorThreeD=false;
}
MessageBox.Show (isVectorThreeD.ToString()