141 lines
6.1 KiB
Python
141 lines
6.1 KiB
Python
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#!/usr/bin/env python
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'''
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scatter.py
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Sunabe kazumichi 2009/9/29
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http://dp48069596.lolipop.jp/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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attention:when rotation degree become large, patterns are deformed largely.
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therefore,restricted the rotation in range -30<deg<30.
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'''
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import inkex, cubicsuperpath, bezmisc
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import pathmodifier,simpletransform
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import copy, math, re, random
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def translate(pathcomp,dx,dy):
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for ctl in pathcomp:
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for pt in ctl:
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pt[0]+=dx
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pt[1]+=dy
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def scale(pathcomp,scale,org):
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for ctl in pathcomp:
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for pt in ctl:
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pt[0]=org[0]+(pt[0]-org[0])*scale
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pt[1]=org[1]+(pt[1]-org[1])*scale
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def rotate(pathcomp,angle):
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for ctl in pathcomp:
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for pt in ctl:
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pt[0]=pt[0]*math.cos(angle)-pt[1]*math.sin(angle)
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pt[1]=pt[0]*math.sin(angle)+pt[1]*math.cos(angle)
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class ScatterAlongPath(pathmodifier.Diffeo):
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def __init__(self):
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pathmodifier.Diffeo.__init__(self)
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self.OptionParser.add_option("--title")
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self.OptionParser.add_option("-r", "--random",
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action="store", type="inkbool",
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dest="random", default=True,
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help="random pattern on the skeleton")
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self.OptionParser.add_option("-d", "--density",
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action="store", type="int",
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dest="density", default=3)
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self.OptionParser.add_option("-o", "--offset",
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action="store", type="float",
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dest="offset", default=0.0, help="offset")
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self.OptionParser.add_option("-s", "--scale",
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action="store", type="float",
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dest="scale", default=100, help="scale")
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self.OptionParser.add_option("-p", "--rotation",
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action="store", type="float",
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dest="rotation", default=0,
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help="rotation pattern on the skeleton")
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def prepareSelectionList(self):
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idList=self.options.ids
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idList=pathmodifier.zSort(self.document.getroot(),idList)
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id = idList[-1]
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self.patterns={id:self.selected[id]}
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self.patterns=self.duplicateNodes(self.patterns)
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self.expandGroupsUnlinkClones(self.patterns, True, True)
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self.objectsToPaths(self.patterns)
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del self.selected[id]
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self.skeletons=self.selected
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self.expandGroupsUnlinkClones(self.skeletons, True, False)
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self.objectsToPaths(self.skeletons)
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def effect(self):
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if len(self.options.ids)<2:
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inkex.debug("This extension requires that you select two paths.")
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return
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self.prepareSelectionList()
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bbox=simpletransform.computeBBox(self.patterns.values())
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for id, node in self.patterns.iteritems():
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if node.tag == inkex.addNS('path','svg') or node.tag=='path':
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d = node.get('d')
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p0 = cubicsuperpath.parsePath(d)
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newp=[]
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for skelnode in self.skeletons.itervalues():
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self.curSekeleton=cubicsuperpath.parsePath(skelnode.get('d'))
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den=1
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while den <= self.options.density:
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for comp in self.curSekeleton:
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p=copy.deepcopy(p0)
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if self.options.random:
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xoffset=-bbox[0]-(bbox[1]-bbox[0])/2+random.uniform(-self.options.offset, self.options.offset)
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yoffset=-(bbox[2]+bbox[3])/2-random.uniform(-self.options.offset, self.options.offset)
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else:
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self.options.density=1
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self.options.offset=0
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xoffset=-bbox[0]-(bbox[1]-bbox[0])/2+self.options.offset
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yoffset=-(bbox[2]+bbox[3])/2-self.options.offset
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NbCopies=len(comp)
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new=[]
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for sub in p:
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for i in range(0,NbCopies,1):
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new.append(copy.deepcopy(sub))
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p=new
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for sub in p:
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translate(sub,xoffset,yoffset)
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for sub in p:
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if self.options.random:
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scale(sub,random.uniform(self.options.scale, 100)/100,(0,0))
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else:
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scale(sub,self.options.scale/100,(0,0))
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for sub in p:
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if self.options.random:
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rotate(sub,random.uniform(-self.options.rotation*math.pi/180, self.options.rotation*math.pi/180))
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else:
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rotate(sub,self.options.rotation*math.pi/180)
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for i,sub in enumerate(p):
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try:
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translate(sub,comp[i][1][0],comp[i][1][1])
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except:
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pass
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newp+=p
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den+=1
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node.set('d', cubicsuperpath.formatPath(newp))
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e = ScatterAlongPath()
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e.affect()
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