I have just uploaded ver. 1.40 of tpsDig to the Stony Brook Morphometrics web server. It represents a significant change in the way outlines are treated. For this reason, you should be careful about switching to it in the middle of a project that uses outlines.
Previously, the program used the standard convention that outlines of objects are captured in a counter clockwise direction and any holes in an object are captured in a clockwise direction. There is an option to indicate whether the object in an image is light against a dark background or dark against a light background. However, if one is not careful one can end up with a file in which some outlines are captured clockwise and others counter clockwise. This can, for example, have a large impact on the results of a Fourier analysis. I have added an item on the Options menu to specify the direction in which all outlines are to be captured. The default is counter clockwise. Note that it only changes how outlines are captured in the future - it does not change how existing outlines are stored. If requested, I can add an option to the tpsUtil program to transform any existing outline files. Please let me know if you have any problems with this new release. ----------------------- F. James Rohlf State University of New York, Stony Brook, NY 11794-5245 www: http://life.bio.sunysb.edu/ee/rohlf == Replies will be sent to list. For more information see http://life.bio.sunysb.edu/morph/morphmet.html.
