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Version 1.9 Build 1488

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regionmanager.extractsimpleregions - Function

	Package	general
	Module	images
	Tool	regionmanager

Extract all simple regions into a record

Synopsis
extractsimpleregions(region)

Arguments

region	in	The region to extend
		Allowed:	Region tool

Returns
Record of Region tools or fail

Description

This function (short-hand name esr) extracts all simple (i.e. non-compound) regions from the given region tool. This might be useful to plot all of the simple regions that made up a compound region.

Example

- im := image('cube')
- cs := im.coordsys()
- drm.setcoordinates(cs)
-
- x := dq.quantity([40,45,48,55,48,43,40], 'pix')
- y := dq.quantity([40,43,59,60,53,48,45], 'pix')
- poly := drm.wpolygon(x, y, [1,3])
- box := drm.wbox(dq.quantity("20pix"), dq.quantity("30pix"), [2])
- 
- union := drm.union(box, poly);
- rec := drm.extractsimpleregions(union)
- print 'Number of extracted simple regions = ', length(rec)
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