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I am adding an imagelayer to a map with a WorldData structure that specifies a target lat/long in the center:

WorldData worldData = SketchHelper.ConvertWorldCoordinates(CurrentSketchModel.BaseImage.WorldData);
ImageLayer imageLayer = new ImageLayer(imageFileName, worldData);

this returns the following in the Visual Studio immediate window:

CenterX: -80.14044
CenterY: 26.95556
ColumnRotation: 0.0
RowRotation: 0.0
SizeX: 0.000001025641025645923
SizeY: -0.000001025641025645923

However, the imagelayer's extent is as follows:

? imageLayer.Extent.Centroid
    X: -80.139941025641008
    Y: 26.955249743589739

and the imagelayer's upper left point is as follows:

? imageLayer.Extent.UpperLeftPoint
    X: -80.1404405128205
    Y: 26.955560512820512

In other words, what should be the centroid is ending up as the upper left corner of the extent.

How do I fix this?

Gregory,

If you look carefully in the Desktop 2.0 API Documentation you will see that CenterX and CenterY are the center of the upper left pixel, which is why you are seeing the imageLayer.Extent.UpperLeftPoint set to the coordinate for CenterX and CenterY.

You're definitely spot on, Ryan - thanks for the clarification. I've already adjusted my code to allow for the center/upper-left discrepancy (self-inflicted, I must admit) and now I have backup as to why I made the change...

Glad to be of assistance!