RELEASE NOTES 

		spatstat 1.11-8

		26 July 2007

		We thank Colin Beale and Agustin Lobo for contributions.
	
OVERVIEW
	New algorithm for distance map for windows.
	Minor improvements and bug fixes for multitype point patterns.

NEW FUNCTIONS

	as.data.frame.ppp
		Extracts the coordinates of the points in a point pattern,
		and returns them as a data frame (together with marks
		if the pattern was marked).

IMPROVEMENTS/ENHANCEMENTS

	rmh, rmh.default, rmh.ppm
		Computation slightly accelerated in some cases.

	as.im
		Now has an argument `na.replace' which can be used
		to replace NA entries by any value.

	distmap.owin
		The algorithm for computing the distance map of a binary mask
		has been changed, to improve self-consistency and speed.

	demo(spatstat)
		Demonstration of distmap.owin added.

BUGS

	[1] rmh.ppm
		When instructed to condition on the number of points
		or the number of points of each type, rmh.ppm would 
		sometimes disobey, returning fewer than the required number
		of points. 
		Fixed.

	[2] update.ppm, qqplot.ppm
		update(M, X) generated an error report from quadscheme()
		if M was a multitype point process model and X was a
		multitype point pattern. 
		Fixed.
		
	[3] plot.owin, plot.ppp
		If the window was a binary mask, plot.owin issued a warning
		message about the argument `hatch', even if hatch=FALSE.
		Fixed.

	[4] clarkevans
		The case where correction="guard" was incorrectly implemented.
		Fixed.