Select these parameters to return non-calibrated coordinates of the start points of objects to be measured. The coordinates are given in pixels relative to the upper left corner of the image.
In the Blob measurements objects are measured in the order from top to bottom, left to right, so the first found point of the blob is the leftmost pixel from the top row of pixels. The coordinates of the first found point are returned as StartX and StartY.
In the Point measurement these parameters define the coordinates of the center of the feature.
In other interactive measurements StartX and StartY return the coordinates of the initial point at which the definition of the object was started.