REM Created in CorelPhotoPaint Version 9.439
REM From a sample script by Alex Vakulenko.
REM Modified by Alex Link
'	ospindiff.csc - an object spinner script with difference merge effect
' Script requires ONE object with its center in the right half of the screen.
' Screen center is the center of rotation.
' The mask channel should be empty.

withobject "CorelPhotoPaint.Automation.9"
	csw& = .GetDocumentWidth()
	csh& = .GetDocumentHeight()

	cx& = csw&/2	' screen center and center of rotation
	cy& = csh&/2	
	Msg$ = "Enter the number of objects: " & CHR(13) & \\
		"Avoid large numbers that cause dramatic filesize increases."
	uix$ = INPUTBOX(Msg$)
	ix& = VAL(uix$)
	IF ix = 0 THEN ix = 12
	rx& = 360/ix	' rotation angle
	
	for i&=1 to ix-1
	
	.ObjectDuplicate
		.ObjectSelectNone
		.ObjectSelect 1,TRUE
		.EndObject
		
	.GetObjectRectangle i+1, x1&, y1&, x2&, y2&

	x2&=x2&+1
	y2&=y2&+1
	
'	w& = x2&-x1&
'	h& = y2&-y1&
	
	cxo&=(x1+x2)/2 ' Center of object
	cyo&=(y1+y2)/2
	
	a#=ANGLECONVERT(1,2,rx*i) ' Rotation angle
	
	D11#=COS(a)
	D12#=SIN(a)
	D21#=-SIN(a)
	D22#=COS(a)
	
	dx1&=cxo-cx ' Center of object relative to the center of rotation
	dy1&=cyo-cy
	
	dx2&=D11*dx1+D12*dy1+cx ' Required position of the new center of the transformed object
	dy2&=D21*dx1+D22*dy1+cy

	.ObjectAffineDistort 0, 0, D11, D12, D21, D22, TRUE
		.EndObject
		
	.GetObjectRectangle i+1, x1&, y1&, x2&, y2& ' Coordinates of transformed object
	x2&=x2&+1
	y2&=y2&+1

	cx1&=(x1+x2)/2 ' Center of new transformed object
	cy1&=(y1+y2)/2

	.ObjectTranslate dx2-cx1, dy2-cy1, FALSE
		.ObjectSelectNone
		.ObjectSelect i+1,TRUE
		.EndObject
	next i
	' .....................................................
	for j = 1 to ix			' make masks of the objects
		.ObjectEdit j, FALSE
		.MaskCreate TRUE, 0
			.ObjectSelectNone
			.ObjectSelect j, TRUE
			.EndMaskCreate
		.MaskChannelAdd "mask" & STR(j)
		.MaskRemove
	next j
	for m = 0 to ix-1			' make a shape mask for the result
		.MaskChannelToMask m, 1
	next m
	.MaskChannelAdd "shape"
	.MaskRemove
	
	.ObjectEdit 0, FALSE		' turn background to black for difference merge
	.EditFill 0, 0, 100, 0, 0, 0, csh-1, 0, csh-1, 0, csh-1
		.FillSolid 5, 0, 0, 0, 0
		.EndEditFill
	for k = 1 to ix		' difference merge the objects
		.ObjectEdit k, FALSE
		.ObjectMergeMode 3
			.ObjectSelectNone
			.ObjectSelect k, TRUE
			.EndObject
	next k
	
end withobject