public class TLcdAxisAlignedRasterReferencer extends java.lang.Object implements ILcdRasterReferencer
This implementation of ILcdRasterReferencer computes axis-aligned raster bounds in the given model reference. This means that the raster is simply translated and scaled, based on a least squares approximation of the tie points.
If all tie points are vertically or horizontally aligned, this referencer assumes that the aspect ratio of the image is the same in image and world coordinates.
If rotation is also required, this class can be chained to
TLcdRotatedRasterReferencer. For instance:
ILcdRasterReferencer referencer = new TLcdRotatedRasterReferencer(new TLcdAxisAlignedRasterReferencer());
|Constructor and Description|
|Modifier and Type||Method and Description|
Creates a raster reference for an image of a given size, based on pairs of tie points.
public ILcdRasterReference createRasterReference(int aImageWidth, int aImageHeight, ILcdPoint aImageTiePoints, ILcdModelReference aModelReference, ILcdPoint aModelTiePoints, ILcdPoint aMappedModelTiePointsSFCT)
An optional array can be provided for obtaining the model tie points transformed to image coordinates on return. These reflect the effects of the referencing. The differences between the transformed model tie points (expressed in pixels) and the original image tie points (also expressed in pixels) provide a measure for the success of the referencing. With a perfect raster reference, the resulting model tie points correspond to the original image tie points.
aImageWidth- the image width of the raster, expressed in pixels.
aImageHeight- the image height of the raster, expressed in pixels.
aImageTiePoints- the image tie points, expressed in pixels.
aModelReference- the reference of the model tie points.
aModelTiePoints- the model tie points corresponding to the image tie points, expressed in model coordinates.
aMappedModelTiePointsSFCT- an optional array for obtaining the the model tie points mapped to image coordinates upon return. This parameter may be
null, if the mapped points are not required.