diff options
Diffstat (limited to 'support/dxf_export')
| -rw-r--r-- | support/dxf_export/__init__.py | 0 | ||||
| -rw-r--r-- | support/dxf_export/__main__.py | 122 | ||||
| -rwxr-xr-x | support/dxf_export/bezmisc.py | 273 | ||||
| -rwxr-xr-x | support/dxf_export/cspsubdiv.py | 37 | ||||
| -rwxr-xr-x | support/dxf_export/cubicsuperpath.py | 169 | ||||
| -rw-r--r-- | support/dxf_export/dxf_footer.txt | 62 | ||||
| -rw-r--r-- | support/dxf_export/dxf_header.txt | 580 | ||||
| -rw-r--r-- | support/dxf_export/effect.py | 201 | ||||
| -rwxr-xr-x | support/dxf_export/ffgeom.py | 141 | ||||
| -rwxr-xr-x | support/dxf_export/inkex.py | 370 | ||||
| -rwxr-xr-x | support/dxf_export/simplepath.py | 212 | ||||
| -rwxr-xr-x | support/dxf_export/simpletransform.py | 241 |
12 files changed, 0 insertions, 2408 deletions
diff --git a/support/dxf_export/__init__.py b/support/dxf_export/__init__.py deleted file mode 100644 index e69de29..0000000 --- a/support/dxf_export/__init__.py +++ /dev/null diff --git a/support/dxf_export/__main__.py b/support/dxf_export/__main__.py deleted file mode 100644 index 3052e6f..0000000 --- a/support/dxf_export/__main__.py +++ /dev/null @@ -1,122 +0,0 @@ -import sys, os, xml.etree.ElementTree, shutil -from lib import util -from . import effect - - -def _export_dxf(in_path, out_path, layers): - dxf_effect = effect.ExportEffect(layers) - dxf_effect.affect(args = [in_path], output = False) - - with open(out_path, 'w') as file: - dxf_effect.write_dxf(file) - - -def _get_inkscape_layers(svg_path): - document = xml.etree.ElementTree.parse(svg_path) - - def iter_layers(): - nodes = document.findall( - '{http://www.w3.org/2000/svg}g[@{http://www.inkscape.org/namespaces/inkscape}groupmode="layer"]') - - for i in nodes: - inkscape_name = i.get('{http://www.inkscape.org/namespaces/inkscape}label').strip() - - if inkscape_name.endswith(']'): - dxf_name, args = inkscape_name[:-1].rsplit('[', 1) - - dxf_name = dxf_name.strip() - args = args.strip() - - use_paths = 'p' in args - else: - use_paths = False - dxf_name = inkscape_name - - yield effect.Layer(inkscape_name, dxf_name, use_paths = use_paths) - - return list(iter_layers()) - - -def _inkscape(svg_path, verbs): - def iter_args(): - yield os.environ['INKSCAPE'] - - for i in verbs: - yield '--verb' - yield i - - yield svg_path - - util.command(list(iter_args())) - - -def _unfuck_svg_document(temp_svg_path, layers): - """ - Unfucks an SVG document so is can be processed by the better_dxf_export plugin (or what's left of it). - """ - - def iter_inkscape_verbs(): - yield 'LayerUnlockAll' - yield 'LayerShowAll' - - # Go to the first layer. - for _ in layers: - yield 'LayerPrev' - - # Copy each layer and flatten it to a single path object. - for i in layers: - yield 'LayerDuplicate' - yield 'EditSelectAll' - yield 'ObjectToPath' - yield 'EditSelectAll' - yield 'SelectionUnGroup' - - if not i.use_paths: - yield 'EditSelectAll' - yield 'StrokeToPath' - yield 'EditSelectAll' - yield 'SelectionUnion' - - yield 'LayerNext' - - # Go to the first layer again. - for _ in range(2 * len(layers)): - yield 'LayerPrev' - - # Move the flattened shapes to the original layers. - for _ in layers: - yield 'EditSelectAll' - yield 'EditDelete' - yield 'LayerNext' - - yield 'EditSelectAll' - yield 'LayerMoveToPrev' - yield 'LayerNext' - yield 'LayerDelete' - - yield 'FileSave' - yield 'FileClose' - yield 'FileQuit' - - _inkscape(temp_svg_path, list(iter_inkscape_verbs())) - - -def main(in_path, out_path): - with util.TemporaryDirectory() as temp_dir: - temp_svg_path = os.path.join(temp_dir, 'temp.svg') - - shutil.copyfile(in_path, temp_svg_path) - - layers = _get_inkscape_layers(temp_svg_path) - _unfuck_svg_document(temp_svg_path, layers) - - _export_dxf(temp_svg_path, out_path, layers) - - -try: - main(*sys.argv[1:]) -except util.UserError as e: - print 'Error:', e - sys.exit(1) -except KeyboardInterrupt: - sys.exit(2) diff --git a/support/dxf_export/bezmisc.py b/support/dxf_export/bezmisc.py deleted file mode 100755 index b7f5429..0000000 --- a/support/dxf_export/bezmisc.py +++ /dev/null @@ -1,273 +0,0 @@ -#!/usr/bin/env python -''' -Copyright (C) 2010 Nick Drobchenko, nick@cnc-club.ru -Copyright (C) 2005 Aaron Spike, aaron@ekips.org - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -''' - -import math, cmath - -def rootWrapper(a,b,c,d): - if a: - # Monics formula see http://en.wikipedia.org/wiki/Cubic_function#Monic_formula_of_roots - a,b,c = (b/a, c/a, d/a) - m = 2.0*a**3 - 9.0*a*b + 27.0*c - k = a**2 - 3.0*b - n = m**2 - 4.0*k**3 - w1 = -.5 + .5*cmath.sqrt(-3.0) - w2 = -.5 - .5*cmath.sqrt(-3.0) - if n < 0: - m1 = pow(complex((m+cmath.sqrt(n))/2),1./3) - n1 = pow(complex((m-cmath.sqrt(n))/2),1./3) - else: - if m+math.sqrt(n) < 0: - m1 = -pow(-(m+math.sqrt(n))/2,1./3) - else: - m1 = pow((m+math.sqrt(n))/2,1./3) - if m-math.sqrt(n) < 0: - n1 = -pow(-(m-math.sqrt(n))/2,1./3) - else: - n1 = pow((m-math.sqrt(n))/2,1./3) - x1 = -1./3 * (a + m1 + n1) - x2 = -1./3 * (a + w1*m1 + w2*n1) - x3 = -1./3 * (a + w2*m1 + w1*n1) - return (x1,x2,x3) - elif b: - det=c**2.0-4.0*b*d - if det: - return (-c+cmath.sqrt(det))/(2.0*b),(-c-cmath.sqrt(det))/(2.0*b) - else: - return -c/(2.0*b), - elif c: - return 1.0*(-d/c), - return () - -def bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))): - #parametric bezier - x0=bx0 - y0=by0 - cx=3*(bx1-x0) - bx=3*(bx2-bx1)-cx - ax=bx3-x0-cx-bx - cy=3*(by1-y0) - by=3*(by2-by1)-cy - ay=by3-y0-cy-by - - return ax,ay,bx,by,cx,cy,x0,y0 - #ax,ay,bx,by,cx,cy,x0,y0=bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))) - -def linebezierintersect(((lx1,ly1),(lx2,ly2)),((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))): - #parametric line - dd=lx1 - cc=lx2-lx1 - bb=ly1 - aa=ly2-ly1 - - if aa: - coef1=cc/aa - coef2=1 - else: - coef1=1 - coef2=aa/cc - - ax,ay,bx,by,cx,cy,x0,y0=bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))) - #cubic intersection coefficients - a=coef1*ay-coef2*ax - b=coef1*by-coef2*bx - c=coef1*cy-coef2*cx - d=coef1*(y0-bb)-coef2*(x0-dd) - - roots = rootWrapper(a,b,c,d) - retval = [] - for i in roots: - if type(i) is complex and i.imag==0: - i = i.real - if type(i) is not complex and 0<=i<=1: - retval.append(bezierpointatt(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3)),i)) - return retval - -def bezierpointatt(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3)),t): - ax,ay,bx,by,cx,cy,x0,y0=bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))) - x=ax*(t**3)+bx*(t**2)+cx*t+x0 - y=ay*(t**3)+by*(t**2)+cy*t+y0 - return x,y - -def bezierslopeatt(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3)),t): - ax,ay,bx,by,cx,cy,x0,y0=bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))) - dx=3*ax*(t**2)+2*bx*t+cx - dy=3*ay*(t**2)+2*by*t+cy - return dx,dy - -def beziertatslope(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3)),(dy,dx)): - ax,ay,bx,by,cx,cy,x0,y0=bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))) - #quadratic coefficents of slope formula - if dx: - slope = 1.0*(dy/dx) - a=3*ay-3*ax*slope - b=2*by-2*bx*slope - c=cy-cx*slope - elif dy: - slope = 1.0*(dx/dy) - a=3*ax-3*ay*slope - b=2*bx-2*by*slope - c=cx-cy*slope - else: - return [] - - roots = rootWrapper(0,a,b,c) - retval = [] - for i in roots: - if type(i) is complex and i.imag==0: - i = i.real - if type(i) is not complex and 0<=i<=1: - retval.append(i) - return retval - -def tpoint((x1,y1),(x2,y2),t): - return x1+t*(x2-x1),y1+t*(y2-y1) -def beziersplitatt(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3)),t): - m1=tpoint((bx0,by0),(bx1,by1),t) - m2=tpoint((bx1,by1),(bx2,by2),t) - m3=tpoint((bx2,by2),(bx3,by3),t) - m4=tpoint(m1,m2,t) - m5=tpoint(m2,m3,t) - m=tpoint(m4,m5,t) - - return ((bx0,by0),m1,m4,m),(m,m5,m3,(bx3,by3)) - -''' -Approximating the arc length of a bezier curve -according to <http://www.cit.gu.edu.au/~anthony/info/graphics/bezier.curves> - -if: - L1 = |P0 P1| +|P1 P2| +|P2 P3| - L0 = |P0 P3| -then: - L = 1/2*L0 + 1/2*L1 - ERR = L1-L0 -ERR approaches 0 as the number of subdivisions (m) increases - 2^-4m - -Reference: -Jens Gravesen <gravesen@mat.dth.dk> -"Adaptive subdivision and the length of Bezier curves" -mat-report no. 1992-10, Mathematical Institute, The Technical -University of Denmark. -''' -def pointdistance((x1,y1),(x2,y2)): - return math.sqrt(((x2 - x1) ** 2) + ((y2 - y1) ** 2)) -def Gravesen_addifclose(b, len, error = 0.001): - box = 0 - for i in range(1,4): - box += pointdistance(b[i-1], b[i]) - chord = pointdistance(b[0], b[3]) - if (box - chord) > error: - first, second = beziersplitatt(b, 0.5) - Gravesen_addifclose(first, len, error) - Gravesen_addifclose(second, len, error) - else: - len[0] += (box / 2.0) + (chord / 2.0) -def bezierlengthGravesen(b, error = 0.001): - len = [0] - Gravesen_addifclose(b, len, error) - return len[0] - -# balf = Bezier Arc Length Function -balfax,balfbx,balfcx,balfay,balfby,balfcy = 0,0,0,0,0,0 -def balf(t): - retval = (balfax*(t**2) + balfbx*t + balfcx)**2 + (balfay*(t**2) + balfby*t + balfcy)**2 - return math.sqrt(retval) - -def Simpson(f, a, b, n_limit, tolerance): - n = 2 - multiplier = (b - a)/6.0 - endsum = f(a) + f(b) - interval = (b - a)/2.0 - asum = 0.0 - bsum = f(a + interval) - est1 = multiplier * (endsum + (2.0 * asum) + (4.0 * bsum)) - est0 = 2.0 * est1 - #print multiplier, endsum, interval, asum, bsum, est1, est0 - while n < n_limit and abs(est1 - est0) > tolerance: - n *= 2 - multiplier /= 2.0 - interval /= 2.0 - asum += bsum - bsum = 0.0 - est0 = est1 - for i in xrange(1, n, 2): - bsum += f(a + (i * interval)) - est1 = multiplier * (endsum + (2.0 * asum) + (4.0 * bsum)) - #print multiplier, endsum, interval, asum, bsum, est1, est0 - return est1 - -def bezierlengthSimpson(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3)), tolerance = 0.001): - global balfax,balfbx,balfcx,balfay,balfby,balfcy - ax,ay,bx,by,cx,cy,x0,y0=bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))) - balfax,balfbx,balfcx,balfay,balfby,balfcy = 3*ax,2*bx,cx,3*ay,2*by,cy - return Simpson(balf, 0.0, 1.0, 4096, tolerance) - -def beziertatlength(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3)), l = 0.5, tolerance = 0.001): - global balfax,balfbx,balfcx,balfay,balfby,balfcy - ax,ay,bx,by,cx,cy,x0,y0=bezierparameterize(((bx0,by0),(bx1,by1),(bx2,by2),(bx3,by3))) - balfax,balfbx,balfcx,balfay,balfby,balfcy = 3*ax,2*bx,cx,3*ay,2*by,cy - t = 1.0 - tdiv = t - curlen = Simpson(balf, 0.0, t, 4096, tolerance) - targetlen = l * curlen - diff = curlen - targetlen - while abs(diff) > tolerance: - tdiv /= 2.0 - if diff < 0: - t += tdiv - else: - t -= tdiv - curlen = Simpson(balf, 0.0, t, 4096, tolerance) - diff = curlen - targetlen - return t - -#default bezier length method -bezierlength = bezierlengthSimpson - -if __name__ == '__main__': - #print linebezierintersect(((,),(,)),((,),(,),(,),(,))) - #print linebezierintersect(((0,1),(0,-1)),((-1,0),(-.5,0),(.5,0),(1,0))) - tol = 0.00000001 - curves = [((0,0),(1,5),(4,5),(5,5)), - ((0,0),(0,0),(5,0),(10,0)), - ((0,0),(0,0),(5,1),(10,0)), - ((-10,0),(0,0),(10,0),(10,10)), - ((15,10),(0,0),(10,0),(-5,10))] - ''' - for curve in curves: - timing.start() - g = bezierlengthGravesen(curve,tol) - timing.finish() - gt = timing.micro() - - timing.start() - s = bezierlengthSimpson(curve,tol) - timing.finish() - st = timing.micro() - - print g, gt - print s, st - ''' - for curve in curves: - print beziertatlength(curve,0.5) - - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 diff --git a/support/dxf_export/cspsubdiv.py b/support/dxf_export/cspsubdiv.py deleted file mode 100755 index c34236a..0000000 --- a/support/dxf_export/cspsubdiv.py +++ /dev/null @@ -1,37 +0,0 @@ -#!/usr/bin/env python -from bezmisc import * -from ffgeom import * - -def maxdist(((p0x,p0y),(p1x,p1y),(p2x,p2y),(p3x,p3y))): - p0 = Point(p0x,p0y) - p1 = Point(p1x,p1y) - p2 = Point(p2x,p2y) - p3 = Point(p3x,p3y) - - s1 = Segment(p0,p3) - return max(s1.distanceToPoint(p1),s1.distanceToPoint(p2)) - - -def cspsubdiv(csp,flat): - for sp in csp: - subdiv(sp,flat) - -def subdiv(sp,flat,i=1): - while i < len(sp): - p0 = sp[i-1][1] - p1 = sp[i-1][2] - p2 = sp[i][0] - p3 = sp[i][1] - - b = (p0,p1,p2,p3) - m = maxdist(b) - if m <= flat: - i += 1 - else: - one, two = beziersplitatt(b,0.5) - sp[i-1][2] = one[1] - sp[i][0] = two[2] - p = [one[2],one[3],two[1]] - sp[i:1] = [p] - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 diff --git a/support/dxf_export/cubicsuperpath.py b/support/dxf_export/cubicsuperpath.py deleted file mode 100755 index 925efdb..0000000 --- a/support/dxf_export/cubicsuperpath.py +++ /dev/null @@ -1,169 +0,0 @@ -#!/usr/bin/env python -""" -cubicsuperpath.py - -Copyright (C) 2005 Aaron Spike, aaron@ekips.org - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - -""" -import simplepath -from math import * - -def matprod(mlist): - prod=mlist[0] - for m in mlist[1:]: - a00=prod[0][0]*m[0][0]+prod[0][1]*m[1][0] - a01=prod[0][0]*m[0][1]+prod[0][1]*m[1][1] - a10=prod[1][0]*m[0][0]+prod[1][1]*m[1][0] - a11=prod[1][0]*m[0][1]+prod[1][1]*m[1][1] - prod=[[a00,a01],[a10,a11]] - return prod -def rotmat(teta): - return [[cos(teta),-sin(teta)],[sin(teta),cos(teta)]] -def applymat(mat, pt): - x=mat[0][0]*pt[0]+mat[0][1]*pt[1] - y=mat[1][0]*pt[0]+mat[1][1]*pt[1] - pt[0]=x - pt[1]=y -def norm(pt): - return sqrt(pt[0]*pt[0]+pt[1]*pt[1]) - -def ArcToPath(p1,params): - A=p1[:] - rx,ry,teta,longflag,sweepflag,x2,y2=params[:] - teta = teta*pi/180.0 - B=[x2,y2] - if rx==0 or ry==0 or A==B: - return([[A[:],A[:],A[:]],[B[:],B[:],B[:]]]) - mat=matprod((rotmat(teta),[[1/rx,0],[0,1/ry]],rotmat(-teta))) - applymat(mat, A) - applymat(mat, B) - k=[-(B[1]-A[1]),B[0]-A[0]] - d=k[0]*k[0]+k[1]*k[1] - k[0]/=sqrt(d) - k[1]/=sqrt(d) - d=sqrt(max(0,1-d/4)) - if longflag==sweepflag: - d*=-1 - O=[(B[0]+A[0])/2+d*k[0],(B[1]+A[1])/2+d*k[1]] - OA=[A[0]-O[0],A[1]-O[1]] - OB=[B[0]-O[0],B[1]-O[1]] - start=acos(OA[0]/norm(OA)) - if OA[1]<0: - start*=-1 - end=acos(OB[0]/norm(OB)) - if OB[1]<0: - end*=-1 - - if sweepflag and start>end: - end +=2*pi - if (not sweepflag) and start<end: - end -=2*pi - - NbSectors=int(abs(start-end)*2/pi)+1 - dTeta=(end-start)/NbSectors - #v=dTeta*2/pi*0.552 - #v=dTeta*2/pi*4*(sqrt(2)-1)/3 - v = 4*tan(dTeta/4)/3 - #if not sweepflag: - # v*=-1 - p=[] - for i in range(0,NbSectors+1,1): - angle=start+i*dTeta - v1=[O[0]+cos(angle)-(-v)*sin(angle),O[1]+sin(angle)+(-v)*cos(angle)] - pt=[O[0]+cos(angle) ,O[1]+sin(angle) ] - v2=[O[0]+cos(angle)- v *sin(angle),O[1]+sin(angle)+ v *cos(angle)] - p.append([v1,pt,v2]) - p[ 0][0]=p[ 0][1][:] - p[-1][2]=p[-1][1][:] - - mat=matprod((rotmat(teta),[[rx,0],[0,ry]],rotmat(-teta))) - for pts in p: - applymat(mat, pts[0]) - applymat(mat, pts[1]) - applymat(mat, pts[2]) - return(p) - -def CubicSuperPath(simplepath): - csp = [] - subpath = -1 - subpathstart = [] - last = [] - lastctrl = [] - for s in simplepath: - cmd, params = s - if cmd == 'M': - if last: - csp[subpath].append([lastctrl[:],last[:],last[:]]) - subpath += 1 - csp.append([]) - subpathstart = params[:] - last = params[:] - lastctrl = params[:] - elif cmd == 'L': - csp[subpath].append([lastctrl[:],last[:],last[:]]) - last = params[:] - lastctrl = params[:] - elif cmd == 'C': - csp[subpath].append([lastctrl[:],last[:],params[:2]]) - last = params[-2:] - lastctrl = params[2:4] - elif cmd == 'Q': - q0=last[:] - q1=params[0:2] - q2=params[2:4] - x0= q0[0] - x1=1./3*q0[0]+2./3*q1[0] - x2= 2./3*q1[0]+1./3*q2[0] - x3= q2[0] - y0= q0[1] - y1=1./3*q0[1]+2./3*q1[1] - y2= 2./3*q1[1]+1./3*q2[1] - y3= q2[1] - csp[subpath].append([lastctrl[:],[x0,y0],[x1,y1]]) - last = [x3,y3] - lastctrl = [x2,y2] - elif cmd == 'A': - arcp=ArcToPath(last[:],params[:]) - arcp[ 0][0]=lastctrl[:] - last=arcp[-1][1] - lastctrl = arcp[-1][0] - csp[subpath]+=arcp[:-1] - elif cmd == 'Z': - csp[subpath].append([lastctrl[:],last[:],last[:]]) - last = subpathstart[:] - lastctrl = subpathstart[:] - #append final superpoint - csp[subpath].append([lastctrl[:],last[:],last[:]]) - return csp - -def unCubicSuperPath(csp): - a = [] - for subpath in csp: - if subpath: - a.append(['M',subpath[0][1][:]]) - for i in range(1,len(subpath)): - a.append(['C',subpath[i-1][2][:] + subpath[i][0][:] + subpath[i][1][:]]) - return a - -def parsePath(d): - return CubicSuperPath(simplepath.parsePath(d)) - -def formatPath(p): - return simplepath.formatPath(unCubicSuperPath(p)) - - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 diff --git a/support/dxf_export/dxf_footer.txt b/support/dxf_export/dxf_footer.txt deleted file mode 100644 index a225dd7..0000000 --- a/support/dxf_export/dxf_footer.txt +++ /dev/null @@ -1,62 +0,0 @@ -0 -ENDSEC -0 -SECTION -2 -OBJECTS -0 -DICTIONARY -5 -C -330 -0 -100 -AcDbDictionary -3 -ACAD_GROUP -350 -D -3 -ACAD_MLINESTYLE -350 -17 -0 -DICTIONARY -5 -D -330 -C -100 -AcDbDictionary -0 -DICTIONARY -5 -1A -330 -C -100 -AcDbDictionary -0 -DICTIONARY -5 -17 -330 -C -100 -AcDbDictionary -3 -STANDARD -350 -18 -0 -DICTIONARY -5 -19 -330 -C -100 -AcDbDictionary -0 -ENDSEC -0 -EOF diff --git a/support/dxf_export/dxf_header.txt b/support/dxf_export/dxf_header.txt deleted file mode 100644 index 341cb1b..0000000 --- a/support/dxf_export/dxf_header.txt +++ /dev/null @@ -1,580 +0,0 @@ -0 -SECTION -2 -HEADER -9 -$ACADVER -1 -AC1014 -9 -$HANDSEED -5 -FFFF -0 -ENDSEC -0 -SECTION -2 -TABLES -0 -TABLE -2 -VPORT -5 -8 -330 -0 -100 -AcDbSymbolTable -70 -4 -0 -VPORT -5 -2E -330 -8 -100 -AcDbSymbolTableRecord -100 -AcDbViewportTableRecord -2 -*ACTIVE -70 -0 -10 -0.0 -20 -0.0 -11 -1.0 -21 -1.0 -12 -4.25 -22 -5.5 -13 -0.0 -23 -0.0 -14 -10.0 -24 -10.0 -15 -10.0 -25 -10.0 -16 -0.0 -26 -0.0 -36 -1.0 -17 -0.0 -27 -0.0 -37 -0.0 -40 -11 -41 -1.24 -42 -50.0 -43 -0.0 -44 -0.0 -50 -0.0 -51 -0.0 -71 -0 -72 -100 -73 -1 -74 -3 -75 -0 -76 -0 -77 -0 -78 -0 -0 -ENDTAB -0 -TABLE -2 -LTYPE -5 -5 -330 -0 -100 -AcDbSymbolTable -70 -1 -0 -LTYPE -5 -14 -330 -5 -100 -AcDbSymbolTableRecord -100 -AcDbLinetypeTableRecord -2 -BYBLOCK -70 -0 -3 - -72 -65 -73 -0 -40 -0.0 -0 -LTYPE -5 -15 -330 -5 -100 -AcDbSymbolTableRecord -100 -AcDbLinetypeTableRecord -2 -BYLAYER -70 -0 -3 - -72 -65 -73 -0 -40 -0.0 -0 -LTYPE -5 -16 -330 -5 -100 -AcDbSymbolTableRecord -100 -AcDbLinetypeTableRecord -2 -CONTINUOUS -70 -0 -3 -Solid line -72 -65 -73 -0 -40 -0.0 -0 -ENDTAB -0 -TABLE -2 -LAYER -5 -2 -330 -0 -100 -AcDbSymbolTable -70 -1 -0 -LAYER -5 -10 -330 -2 -100 -AcDbSymbolTableRecord -100 -AcDbLayerTableRecord -2 -0 -70 -0 -62 -7 -6 -CONTINUOUS -0 -ENDTAB -0 -TABLE -2 -STYLE -5 -3 -330 -0 -100 -AcDbSymbolTable -70 -1 -0 -STYLE -5 -11 -330 -3 -100 -AcDbSymbolTableRecord -100 -AcDbTextStyleTableRecord -2 -STANDARD -70 -0 -40 -0.0 -41 -1.0 -50 -0.0 -71 -0 -42 -2.5 -3 -txt -4 - -0 -ENDTAB -0 -TABLE -2 -VIEW -5 -6 -330 -0 -100 -AcDbSymbolTable -70 -0 -0 -ENDTAB -0 -TABLE -2 -UCS -5 -7 -330 -0 -100 -AcDbSymbolTable -70 -0 -0 -ENDTAB -0 -TABLE -2 -APPID -5 -9 -330 -0 -100 -AcDbSymbolTable -70 -2 -0 -APPID -5 -12 -330 -9 -100 -AcDbSymbolTableRecord -100 -AcDbRegAppTableRecord -2 -ACAD -70 -0 -0 -ENDTAB -0 -TABLE -2 -DIMSTYLE -5 -A -330 -0 -100 -AcDbSymbolTable -70 -1 -0 -DIMSTYLE -105 -27 -330 -A -100 -AcDbSymbolTableRecord -100 -AcDbDimStyleTableRecord -2 -ISO-25 -70 -0 -3 - -4 - -5 - -6 - -7 - -40 -1.0 -41 -2.5 -42 -0.625 -43 -3.75 -44 -1.25 -45 -0.0 -46 -0.0 -47 -0.0 -48 -0.0 -140 -2.5 -141 -2.5 -142 -0.0 -143 -0.03937007874016 -144 -1.0 -145 -0.0 -146 -1.0 -147 -0.625 -71 -0 -72 -0 -73 -0 -74 -0 -75 -0 -76 -0 -77 -1 -78 -8 -170 -0 -171 -3 -172 -1 -173 -0 -174 -0 -175 -0 -176 -0 -177 -0 -178 -0 -270 -2 -271 -2 -272 -2 -273 -2 -274 -3 -340 -11 -275 -0 -280 -0 -281 -0 -282 -0 -283 -0 -284 -8 -285 -0 -286 -0 -287 -3 -288 -0 -0 -ENDTAB -0 -TABLE -2 -BLOCK_RECORD -5 -1 -330 -0 -100 -AcDbSymbolTable -70 -1 -0 -BLOCK_RECORD -5 -1F -330 -1 -100 -AcDbSymbolTableRecord -100 -AcDbBlockTableRecord -2 -*MODEL_SPACE -0 -BLOCK_RECORD -5 -1B -330 -1 -100 -AcDbSymbolTableRecord -100 -AcDbBlockTableRecord -2 -*PAPER_SPACE -0 -ENDTAB -0 -ENDSEC -0 -SECTION -2 -BLOCKS -0 -BLOCK -5 -20 -330 -1F -100 -AcDbEntity -8 -0 -100 -AcDbBlockBegin -2 -*MODEL_SPACE -70 -0 -10 -0.0 -20 -0.0 -30 -0.0 -3 -*MODEL_SPACE -1 - -0 -ENDBLK -5 -21 -330 -1F -100 -AcDbEntity -8 -0 -100 -AcDbBlockEnd -0 -BLOCK -5 -1C -330 -1B -100 -AcDbEntity -67 -1 -8 -0 -100 -AcDbBlockBegin -2 -*PAPER_SPACE -1 - -0 -ENDBLK -5 -1D -330 -1B -100 -AcDbEntity -67 -1 -8 -0 -100 -AcDbBlockEnd -0 -ENDSEC -0 -SECTION -2 -ENTITIES diff --git a/support/dxf_export/effect.py b/support/dxf_export/effect.py deleted file mode 100644 index c72037c..0000000 --- a/support/dxf_export/effect.py +++ /dev/null @@ -1,201 +0,0 @@ -""" -Based on code from Aaron Spike. See http://www.bobcookdev.com/inkscape/inkscape-dxf.html -""" - -import pkgutil, os, re -from . import inkex, simpletransform, cubicsuperpath, cspsubdiv - - -def _get_unit_factors_map(): - # Fluctuates somewhat between Inkscape releases. - pixels_per_inch = 96. - pixels_per_mm = pixels_per_inch / 25.4 - - return { - 'px': 1.0, - 'mm': pixels_per_mm, - 'cm': pixels_per_mm * 10, - 'm' : pixels_per_mm * 1e3, - 'km': pixels_per_mm * 1e6, - 'pt': pixels_per_inch / 72, - 'pc': pixels_per_inch / 6, - 'in': pixels_per_inch, - 'ft': pixels_per_inch * 12, - 'yd': pixels_per_inch * 36 } - - -class Layer(object): - def __init__(self, inkscape_name, export_name, use_paths): - self.inkscape_name = inkscape_name - self.export_name = export_name - self.use_paths = use_paths - - -class ExportEffect(inkex.Effect): - _unit_factors = _get_unit_factors_map() - - def __init__(self, layers): - inkex.Effect.__init__(self) - - self._layers_by_inkscape_name = { i.inkscape_name: i for i in layers } - self._lines = [] - self._handle = 255 - self._layer_indices = { } - self._flatness = float(os.environ['DXF_FLATNESS']) - - def _get_user_unit(self): - """ - Return the size in pixels of the unit used for measures without an explicit unit. - """ - - document_height = self._measure_to_pixels(self._get_document_height_attr()) - view_box_attr = self.document.getroot().get('viewBox') - - if view_box_attr: - _, _, _, view_box_height = map(float, view_box_attr.split()) - else: - view_box_height = document_height - - return document_height / view_box_height - - def _get_document_unit(self): - """ - Return the size in pixels that the user is working with in Inkscape. - """ - - inkscape_unit_attrs = self.document.getroot().xpath('./sodipodi:namedview/@inkscape:document-units', namespaces = inkex.NSS) - - if inkscape_unit_attrs: - unit = inkscape_unit_attrs[0] - else: - _, unit = self._parse_measure(self._get_document_height_attr()) - - return self._get_unit_factor(unit) - - def _get_document_height_attr(self): - return self.document.getroot().xpath('@height', namespaces = inkex.NSS)[0] - - def _get_layer_index(self, layer_name): - index = self._layer_indices.get(layer_name) - - if index is None: - index = len(self._layer_indices) - self._layer_indices[layer_name] = index - - return index - - def _add_line(self, layer_name, csp): - (x1, y1), (x2, y2) = csp - line = layer_name, x1, y1, x2, y2 - - self._lines.append(line) - - def _add_path(self, layer_name, path): - cspsubdiv.cspsubdiv(path, self._flatness) - - for sub in path: - for i in range(len(sub) - 1): - self._handle += 1 - s = sub[i] - e = sub[i + 1] - self._add_line(layer_name, [s[1], e[1]]) - - def _add_shape(self, node, document_transform, element_transform): - path = cubicsuperpath.parsePath(node.get('d')) - layer = self._layers_by_inkscape_name.get(self._get_inkscape_layer_name(node)) - - if layer is None: - layer_name = '' - else: - layer_name = layer.export_name - - transform = simpletransform.composeTransform( - document_transform, - simpletransform.composeParents(node, element_transform)) - - simpletransform.applyTransformToPath(transform, path) - - self._add_path(layer_name, path) - - def effect(self): - user_unit = self._get_user_unit() - document_unit = self._get_document_unit() - height = self._measure_to_pixels(self._get_document_height_attr()) - - document_transform = simpletransform.composeTransform( - [[1 / document_unit, 0, 0], [0, 1 / document_unit, 0]], - [[1, 0, 0], [0, -1, height]]) - - element_transform = [[user_unit, 0, 0], [0, user_unit, 0]] - - for node in self.document.getroot().xpath('//svg:path', namespaces = inkex.NSS): - self._add_shape(node, document_transform, element_transform) - - def write_dxf(self, file): - file.write(pkgutil.get_data(__name__, 'dxf_header.txt')) - - def _write_instruction(code, value): - print >> file, code - print >> file, value - - for layer_name, x1, y1, x2, y2 in self._lines: - _write_instruction(0, 'LINE') - _write_instruction(8, layer_name) - _write_instruction(62, self._get_layer_index(layer_name)) - _write_instruction(5, '{:x}'.format(self._handle)) - _write_instruction(100, 'AcDbEntity') - _write_instruction(100, 'AcDbLine') - _write_instruction(10, repr(x1)) - _write_instruction(20, repr(y1)) - _write_instruction(30, 0.0) - _write_instruction(11, repr(x2)) - _write_instruction(21, repr(y2)) - _write_instruction(31, 0.0) - - file.write(pkgutil.get_data(__name__, 'dxf_footer.txt')) - - @classmethod - def _parse_measure(cls, string): - value_match = re.match(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)', string) - unit_match = re.search('(%s)$' % '|'.join(cls._unit_factors.keys()), string) - - value = float(string[value_match.start():value_match.end()]) - - if unit_match: - unit = string[unit_match.start():unit_match.end()] - else: - unit = None - - return value, unit - - @classmethod - def _measure_to_pixels(cls, string, default_unit_factor = None): - """ - Parse a string containing a measure and return it's value converted to pixels. If the measure has no unit, it will be assumed that the unit has the size of the specified number of pixels. - """ - - value, unit = cls._parse_measure(string) - - return value * cls._get_unit_factor(unit, default_unit_factor) - - @classmethod - def _get_inkscape_layer_name(cls, node): - while node is not None: - layer = node.get(inkex.addNS('label', 'inkscape')) - - if layer is not None: - return layer - - node = node.getparent() - - return None - - @classmethod - def _get_unit_factor(cls, unit, default = None): - if unit is None: - if default is None: - default = 1 - - return default - else: - return cls._unit_factors[unit] diff --git a/support/dxf_export/ffgeom.py b/support/dxf_export/ffgeom.py deleted file mode 100755 index ef8799b..0000000 --- a/support/dxf_export/ffgeom.py +++ /dev/null @@ -1,141 +0,0 @@ -#!/usr/bin/env python -""" - ffgeom.py - Copyright (C) 2005 Aaron Cyril Spike, aaron@ekips.org - - This file is part of FretFind 2-D. - - FretFind 2-D is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - FretFind 2-D is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with FretFind 2-D; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -""" -import math -try: - NaN = float('NaN') -except ValueError: - PosInf = 1e300000 - NaN = PosInf/PosInf - -class Point: - precision = 5 - def __init__(self, x, y): - self.__coordinates = {'x' : float(x), 'y' : float(y)} - def __getitem__(self, key): - return self.__coordinates[key] - def __setitem__(self, key, value): - self.__coordinates[key] = float(value) - def __repr__(self): - return '(%s, %s)' % (round(self['x'],self.precision),round(self['y'],self.precision)) - def copy(self): - return Point(self['x'],self['y']) - def translate(self, x, y): - self['x'] += x - self['y'] += y - def move(self, x, y): - self['x'] = float(x) - self['y'] = float(y) - -class Segment: - def __init__(self, e0, e1): - self.__endpoints = [e0, e1] - def __getitem__(self, key): - return self.__endpoints[key] - def __setitem__(self, key, value): - self.__endpoints[key] = value - def __repr__(self): - return repr(self.__endpoints) - def copy(self): - return Segment(self[0],self[1]) - def translate(self, x, y): - self[0].translate(x,y) - self[1].translate(x,y) - def move(self,e0,e1): - self[0] = e0 - self[1] = e1 - def delta_x(self): - return self[1]['x'] - self[0]['x'] - def delta_y(self): - return self[1]['y'] - self[0]['y'] - #alias functions - run = delta_x - rise = delta_y - def slope(self): - if self.delta_x() != 0: - return self.delta_x() / self.delta_y() - return NaN - def intercept(self): - if self.delta_x() != 0: - return self[1]['y'] - (self[0]['x'] * self.slope()) - return NaN - def distanceToPoint(self, p): - s2 = Segment(self[0],p) - c1 = dot(s2,self) - if c1 <= 0: - return Segment(p,self[0]).length() - c2 = dot(self,self) - if c2 <= c1: - return Segment(p,self[1]).length() - return self.perpDistanceToPoint(p) - def perpDistanceToPoint(self, p): - len = self.length() - if len == 0: return NaN - return math.fabs(((self[1]['x'] - self[0]['x']) * (self[0]['y'] - p['y'])) - \ - ((self[0]['x'] - p['x']) * (self[1]['y'] - self[0]['y']))) / len - def angle(self): - return math.pi * (math.atan2(self.delta_y(), self.delta_x())) / 180 - def length(self): - return math.sqrt((self.delta_x() ** 2) + (self.delta_y() ** 2)) - def pointAtLength(self, len): - if self.length() == 0: return Point(NaN, NaN) - ratio = len / self.length() - x = self[0]['x'] + (ratio * self.delta_x()) - y = self[0]['y'] + (ratio * self.delta_y()) - return Point(x, y) - def pointAtRatio(self, ratio): - if self.length() == 0: return Point(NaN, NaN) - x = self[0]['x'] + (ratio * self.delta_x()) - y = self[0]['y'] + (ratio * self.delta_y()) - return Point(x, y) - def createParallel(self, p): - return Segment(Point(p['x'] + self.delta_x(), p['y'] + self.delta_y()), p) - def intersect(self, s): - return intersectSegments(self, s) - -def intersectSegments(s1, s2): - x1 = s1[0]['x'] - x2 = s1[1]['x'] - x3 = s2[0]['x'] - x4 = s2[1]['x'] - - y1 = s1[0]['y'] - y2 = s1[1]['y'] - y3 = s2[0]['y'] - y4 = s2[1]['y'] - - denom = ((y4 - y3) * (x2 - x1)) - ((x4 - x3) * (y2 - y1)) - num1 = ((x4 - x3) * (y1 - y3)) - ((y4 - y3) * (x1 - x3)) - num2 = ((x2 - x1) * (y1 - y3)) - ((y2 - y1) * (x1 - x3)) - - num = num1 - - if denom != 0: - x = x1 + ((num / denom) * (x2 - x1)) - y = y1 + ((num / denom) * (y2 - y1)) - return Point(x, y) - return Point(NaN, NaN) - -def dot(s1, s2): - return s1.delta_x() * s2.delta_x() + s1.delta_y() * s2.delta_y() - - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 diff --git a/support/dxf_export/inkex.py b/support/dxf_export/inkex.py deleted file mode 100755 index 19e860b..0000000 --- a/support/dxf_export/inkex.py +++ /dev/null @@ -1,370 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- -""" -inkex.py -A helper module for creating Inkscape extensions - -Copyright (C) 2005,2010 Aaron Spike <aaron@ekips.org> and contributors - -Contributors: - Aurélio A. Heckert <aurium(a)gmail.com> - Bulia Byak <buliabyak@users.sf.net> - Nicolas Dufour, nicoduf@yahoo.fr - Peter J. R. Moulder <pjrm@users.sourceforge.net> - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -""" -import copy -import gettext -import optparse -import os -import random -import re -import sys -from math import * - -#a dictionary of all of the xmlns prefixes in a standard inkscape doc -NSS = { -u'sodipodi' :u'http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd', -u'cc' :u'http://creativecommons.org/ns#', -u'ccOLD' :u'http://web.resource.org/cc/', -u'svg' :u'http://www.w3.org/2000/svg', -u'dc' :u'http://purl.org/dc/elements/1.1/', -u'rdf' :u'http://www.w3.org/1999/02/22-rdf-syntax-ns#', -u'inkscape' :u'http://www.inkscape.org/namespaces/inkscape', -u'xlink' :u'http://www.w3.org/1999/xlink', -u'xml' :u'http://www.w3.org/XML/1998/namespace' -} - -def localize(): - domain = 'inkscape' - if sys.platform.startswith('win'): - import locale - current_locale, encoding = locale.getdefaultlocale() - os.environ['LANG'] = current_locale - try: - localdir = os.environ['INKSCAPE_LOCALEDIR']; - trans = gettext.translation(domain, localdir, [current_locale], fallback=True) - except KeyError: - trans = gettext.translation(domain, fallback=True) - elif sys.platform.startswith('darwin'): - try: - localdir = os.environ['INKSCAPE_LOCALEDIR']; - trans = gettext.translation(domain, localdir, fallback=True) - except KeyError: - try: - localdir = os.environ['PACKAGE_LOCALE_DIR']; - trans = gettext.translation(domain, localdir, fallback=True) - except KeyError: - trans = gettext.translation(domain, fallback=True) - else: - try: - localdir = os.environ['PACKAGE_LOCALE_DIR']; - trans = gettext.translation(domain, localdir, fallback=True) - except KeyError: - trans = gettext.translation(domain, fallback=True) - #sys.stderr.write(str(localdir) + "\n") - trans.install() - -def debug(what): - sys.stderr.write(str(what) + "\n") - return what - -def errormsg(msg): - """Intended for end-user-visible error messages. - - (Currently just writes to stderr with an appended newline, but could do - something better in future: e.g. could add markup to distinguish error - messages from status messages or debugging output.) - - Note that this should always be combined with translation: - - import inkex - inkex.localize() - ... - inkex.errormsg(_("This extension requires two selected paths.")) - """ - if isinstance(msg, unicode): - sys.stderr.write(msg.encode("UTF-8") + "\n") - else: - sys.stderr.write((unicode(msg, "utf-8", errors='replace') + "\n").encode("UTF-8")) - -def are_near_relative(a, b, eps): - if (a-b <= a*eps) and (a-b >= -a*eps): - return True - else: - return False - - -# third party library -try: - from lxml import etree -except Exception, e: - localize() - errormsg(_("The fantastic lxml wrapper for libxml2 is required by inkex.py and therefore this extension. Please download and install the latest version from http://cheeseshop.python.org/pypi/lxml/, or install it through your package manager by a command like: sudo apt-get install python-lxml\n\nTechnical details:\n%s" % (e,))) - sys.exit() - -def check_inkbool(option, opt, value): - if str(value).capitalize() == 'True': - return True - elif str(value).capitalize() == 'False': - return False - else: - raise optparse.OptionValueError("option %s: invalid inkbool value: %s" % (opt, value)) - -def addNS(tag, ns=None): - val = tag - if ns!=None and len(ns)>0 and NSS.has_key(ns) and len(tag)>0 and tag[0]!='{': - val = "{%s}%s" % (NSS[ns], tag) - return val - -class InkOption(optparse.Option): - TYPES = optparse.Option.TYPES + ("inkbool",) - TYPE_CHECKER = copy.copy(optparse.Option.TYPE_CHECKER) - TYPE_CHECKER["inkbool"] = check_inkbool - -class Effect: - """A class for creating Inkscape SVG Effects""" - - def __init__(self, *args, **kwargs): - self.document=None - self.original_document=None - self.ctx=None - self.selected={} - self.doc_ids={} - self.options=None - self.args=None - self.OptionParser = optparse.OptionParser(usage="usage: %prog [options] SVGfile",option_class=InkOption) - self.OptionParser.add_option("--id", - action="append", type="string", dest="ids", default=[], - help="id attribute of object to manipulate") - - def effect(self): - pass - - def getoptions(self,args=sys.argv[1:]): - """Collect command line arguments""" - self.options, self.args = self.OptionParser.parse_args(args) - - def parse(self, filename=None): - """Parse document in specified file or on stdin""" - - # First try to open the file from the function argument - if filename != None: - try: - stream = open(filename, 'r') - except Exception: - errormsg(_("Unable to open specified file: %s") % filename) - sys.exit() - - # If it wasn't specified, try to open the file specified as - # an object member - elif self.svg_file != None: - try: - stream = open(self.svg_file, 'r') - except Exception: - errormsg(_("Unable to open object member file: %s") % self.svg_file) - sys.exit() - - # Finally, if the filename was not specified anywhere, use - # standard input stream - else: - stream = sys.stdin - - p = etree.XMLParser(huge_tree=True) - self.document = etree.parse(stream, parser=p) - self.original_document = copy.deepcopy(self.document) - stream.close() - - # defines view_center in terms of document units - def getposinlayer(self): - #defaults - self.current_layer = self.document.getroot() - self.view_center = (0.0,0.0) - - layerattr = self.document.xpath('//sodipodi:namedview/@inkscape:current-layer', namespaces=NSS) - if layerattr: - layername = layerattr[0] - layer = self.document.xpath('//svg:g[@id="%s"]' % layername, namespaces=NSS) - if layer: - self.current_layer = layer[0] - - xattr = self.document.xpath('//sodipodi:namedview/@inkscape:cx', namespaces=NSS) - yattr = self.document.xpath('//sodipodi:namedview/@inkscape:cy', namespaces=NSS) - if xattr and yattr: - x = self.unittouu( xattr[0] + 'px' ) - y = self.unittouu( yattr[0] + 'px') - doc_height = self.unittouu(self.document.getroot().get('height')) - if x and y: - self.view_center = (float(x), doc_height - float(y)) # FIXME: y-coordinate flip, eliminate it when it's gone in Inkscape - - def getselected(self): - """Collect selected nodes""" - for i in self.options.ids: - path = '//*[@id="%s"]' % i - for node in self.document.xpath(path, namespaces=NSS): - self.selected[i] = node - - def getElementById(self, id): - path = '//*[@id="%s"]' % id - el_list = self.document.xpath(path, namespaces=NSS) - if el_list: - return el_list[0] - else: - return None - - def getParentNode(self, node): - for parent in self.document.getiterator(): - if node in parent.getchildren(): - return parent - break - - - def getdocids(self): - docIdNodes = self.document.xpath('//@id', namespaces=NSS) - for m in docIdNodes: - self.doc_ids[m] = 1 - - def getNamedView(self): - return self.document.xpath('//sodipodi:namedview', namespaces=NSS)[0] - - def createGuide(self, posX, posY, angle): - atts = { - 'position': str(posX)+','+str(posY), - 'orientation': str(sin(radians(angle)))+','+str(-cos(radians(angle))) - } - guide = etree.SubElement( - self.getNamedView(), - addNS('guide','sodipodi'), atts ) - return guide - - def output(self): - """Serialize document into XML on stdout""" - original = etree.tostring(self.original_document) - result = etree.tostring(self.document) - if original != result: - self.document.write(sys.stdout) - - def affect(self, args=sys.argv[1:], output=True): - """Affect an SVG document with a callback effect""" - self.svg_file = args[-1] - self.getoptions(args) - self.parse() - self.getposinlayer() - self.getselected() - self.getdocids() - self.effect() - if output: self.output() - - def uniqueId(self, old_id, make_new_id = True): - new_id = old_id - if make_new_id: - while new_id in self.doc_ids: - new_id += random.choice('0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ') - self.doc_ids[new_id] = 1 - return new_id - - def xpathSingle(self, path): - try: - retval = self.document.xpath(path, namespaces=NSS)[0] - except: - errormsg(_("No matching node for expression: %s") % path) - retval = None - return retval - - #a dictionary of unit to user unit conversion factors - __uuconv = {'in':96.0, 'pt':1.33333333333, 'px':1.0, 'mm':3.77952755913, 'cm':37.7952755913, - 'm':3779.52755913, 'km':3779527.55913, 'pc':16.0, 'yd':3456.0 , 'ft':1152.0} - - # Function returns the unit used for the values in SVG. - # For lack of an attribute in SVG that explicitly defines what units are used for SVG coordinates, - # try to calculate the unit from the SVG width and SVG viewbox. - # Defaults to 'px' units. - def getDocumentUnit(self): - svgunit = 'px' #default to pixels - - svgwidth = self.document.getroot().get('width') - viewboxstr = self.document.getroot().get('viewBox') - if viewboxstr: - unitmatch = re.compile('(%s)$' % '|'.join(self.__uuconv.keys())) - param = re.compile(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)') - - p = param.match(svgwidth) - u = unitmatch.search(svgwidth) - - width = 100 #default - viewboxwidth = 100 #default - svgwidthunit = 'px' #default assume 'px' unit - if p: - width = float(p.string[p.start():p.end()]) - else: - errormsg(_("SVG Width not set correctly! Assuming width = 100")) - if u: - svgwidthunit = u.string[u.start():u.end()] - - viewboxnumbers = [] - for t in viewboxstr.split(): - try: - viewboxnumbers.append(float(t)) - except ValueError: - pass - if len(viewboxnumbers) == 4: #check for correct number of numbers - viewboxwidth = viewboxnumbers[2] - - svgunitfactor = self.__uuconv[svgwidthunit] * width / viewboxwidth - - # try to find the svgunitfactor in the list of units known. If we don't find something, ... - eps = 0.01 #allow 1% error in factor - for key in self.__uuconv: - if are_near_relative(self.__uuconv[key], svgunitfactor, eps): - #found match! - svgunit = key; - - return svgunit - - - def unittouu(self, string): - '''Returns userunits given a string representation of units in another system''' - unit = re.compile('(%s)$' % '|'.join(self.__uuconv.keys())) - param = re.compile(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)') - - p = param.match(string) - u = unit.search(string) - if p: - retval = float(p.string[p.start():p.end()]) - else: - retval = 0.0 - if u: - try: - return retval * (self.__uuconv[u.string[u.start():u.end()]] / self.__uuconv[self.getDocumentUnit()]) - except KeyError: - pass - else: # default assume 'px' unit - return retval / self.__uuconv[self.getDocumentUnit()] - - return retval - - def uutounit(self, val, unit): - return val / (self.__uuconv[unit] / self.__uuconv[self.getDocumentUnit()]) - - def addDocumentUnit(self, value): - ''' Add document unit when no unit is specified in the string ''' - try: - float(value) - return value + self.getDocumentUnit() - except ValueError: - return value - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 diff --git a/support/dxf_export/simplepath.py b/support/dxf_export/simplepath.py deleted file mode 100755 index 94ab092..0000000 --- a/support/dxf_export/simplepath.py +++ /dev/null @@ -1,212 +0,0 @@ -#!/usr/bin/env python -""" -simplepath.py -functions for digesting paths into a simple list structure - -Copyright (C) 2005 Aaron Spike, aaron@ekips.org - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - -""" -import re, math - -def lexPath(d): - """ - returns and iterator that breaks path data - identifies command and parameter tokens - """ - offset = 0 - length = len(d) - delim = re.compile(r'[ \t\r\n,]+') - command = re.compile(r'[MLHVCSQTAZmlhvcsqtaz]') - parameter = re.compile(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)') - while 1: - m = delim.match(d, offset) - if m: - offset = m.end() - if offset >= length: - break - m = command.match(d, offset) - if m: - yield [d[offset:m.end()], True] - offset = m.end() - continue - m = parameter.match(d, offset) - if m: - yield [d[offset:m.end()], False] - offset = m.end() - continue - #TODO: create new exception - raise Exception, 'Invalid path data!' -''' -pathdefs = {commandfamily: - [ - implicitnext, - #params, - [casts,cast,cast], - [coord type,x,y,0] - ]} -''' -pathdefs = { - 'M':['L', 2, [float, float], ['x','y']], - 'L':['L', 2, [float, float], ['x','y']], - 'H':['H', 1, [float], ['x']], - 'V':['V', 1, [float], ['y']], - 'C':['C', 6, [float, float, float, float, float, float], ['x','y','x','y','x','y']], - 'S':['S', 4, [float, float, float, float], ['x','y','x','y']], - 'Q':['Q', 4, [float, float, float, float], ['x','y','x','y']], - 'T':['T', 2, [float, float], ['x','y']], - 'A':['A', 7, [float, float, float, int, int, float, float], ['r','r','a',0,'s','x','y']], - 'Z':['L', 0, [], []] - } -def parsePath(d): - """ - Parse SVG path and return an array of segments. - Removes all shorthand notation. - Converts coordinates to absolute. - """ - retval = [] - lexer = lexPath(d) - - pen = (0.0,0.0) - subPathStart = pen - lastControl = pen - lastCommand = '' - - while 1: - try: - token, isCommand = lexer.next() - except StopIteration: - break - params = [] - needParam = True - if isCommand: - if not lastCommand and token.upper() != 'M': - raise Exception, 'Invalid path, must begin with moveto.' - else: - command = token - else: - #command was omited - #use last command's implicit next command - needParam = False - if lastCommand: - if lastCommand.isupper(): - command = pathdefs[lastCommand][0] - else: - command = pathdefs[lastCommand.upper()][0].lower() - else: - raise Exception, 'Invalid path, no initial command.' - numParams = pathdefs[command.upper()][1] - while numParams > 0: - if needParam: - try: - token, isCommand = lexer.next() - if isCommand: - raise Exception, 'Invalid number of parameters' - except StopIteration: - raise Exception, 'Unexpected end of path' - cast = pathdefs[command.upper()][2][-numParams] - param = cast(token) - if command.islower(): - if pathdefs[command.upper()][3][-numParams]=='x': - param += pen[0] - elif pathdefs[command.upper()][3][-numParams]=='y': - param += pen[1] - params.append(param) - needParam = True - numParams -= 1 - #segment is now absolute so - outputCommand = command.upper() - - #Flesh out shortcut notation - if outputCommand in ('H','V'): - if outputCommand == 'H': - params.append(pen[1]) - if outputCommand == 'V': - params.insert(0,pen[0]) - outputCommand = 'L' - if outputCommand in ('S','T'): - params.insert(0,pen[1]+(pen[1]-lastControl[1])) - params.insert(0,pen[0]+(pen[0]-lastControl[0])) - if outputCommand == 'S': - outputCommand = 'C' - if outputCommand == 'T': - outputCommand = 'Q' - - #current values become "last" values - if outputCommand == 'M': - subPathStart = tuple(params[0:2]) - pen = subPathStart - if outputCommand == 'Z': - pen = subPathStart - else: - pen = tuple(params[-2:]) - - if outputCommand in ('Q','C'): - lastControl = tuple(params[-4:-2]) - else: - lastControl = pen - lastCommand = command - - retval.append([outputCommand,params]) - return retval - -def formatPath(a): - """Format SVG path data from an array""" - return "".join([cmd + " ".join([str(p) for p in params]) for cmd, params in a]) - -def translatePath(p, x, y): - for cmd,params in p: - defs = pathdefs[cmd] - for i in range(defs[1]): - if defs[3][i] == 'x': - params[i] += x - elif defs[3][i] == 'y': - params[i] += y - -def scalePath(p, x, y): - for cmd,params in p: - defs = pathdefs[cmd] - for i in range(defs[1]): - if defs[3][i] == 'x': - params[i] *= x - elif defs[3][i] == 'y': - params[i] *= y - elif defs[3][i] == 'r': # radius parameter - params[i] *= x - elif defs[3][i] == 's': # sweep-flag parameter - if x*y < 0: - params[i] = 1 - params[i] - elif defs[3][i] == 'a': # x-axis-rotation angle - if y < 0: - params[i] = - params[i] - -def rotatePath(p, a, cx = 0, cy = 0): - if a == 0: - return p - for cmd,params in p: - defs = pathdefs[cmd] - for i in range(defs[1]): - if defs[3][i] == 'x': - x = params[i] - cx - y = params[i + 1] - cy - r = math.sqrt((x**2) + (y**2)) - if r != 0: - theta = math.atan2(y, x) + a - params[i] = (r * math.cos(theta)) + cx - params[i + 1] = (r * math.sin(theta)) + cy - - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 diff --git a/support/dxf_export/simpletransform.py b/support/dxf_export/simpletransform.py deleted file mode 100755 index 55082ed..0000000 --- a/support/dxf_export/simpletransform.py +++ /dev/null @@ -1,241 +0,0 @@ -#!/usr/bin/env python -''' -Copyright (C) 2006 Jean-Francois Barraud, barraud@math.univ-lille1.fr -Copyright (C) 2010 Alvin Penner, penner@vaxxine.com - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -barraud@math.univ-lille1.fr - -This code defines several functions to make handling of transform -attribute easier. -''' -import inkex, cubicsuperpath -import math, re - -def parseTransform(transf,mat=[[1.0, 0.0, 0.0], [0.0, 1.0, 0.0]]): - if transf=="" or transf==None: - return(mat) - stransf = transf.strip() - result=re.match("(translate|scale|rotate|skewX|skewY|matrix)\s*\(([^)]*)\)\s*,?",stransf) -#-- translate -- - if result.group(1)=="translate": - args=result.group(2).replace(',',' ').split() - dx=float(args[0]) - if len(args)==1: - dy=0.0 - else: - dy=float(args[1]) - matrix=[[1,0,dx],[0,1,dy]] -#-- scale -- - if result.group(1)=="scale": - args=result.group(2).replace(',',' ').split() - sx=float(args[0]) - if len(args)==1: - sy=sx - else: - sy=float(args[1]) - matrix=[[sx,0,0],[0,sy,0]] -#-- rotate -- - if result.group(1)=="rotate": - args=result.group(2).replace(',',' ').split() - a=float(args[0])*math.pi/180 - if len(args)==1: - cx,cy=(0.0,0.0) - else: - cx,cy=map(float,args[1:]) - matrix=[[math.cos(a),-math.sin(a),cx],[math.sin(a),math.cos(a),cy]] - matrix=composeTransform(matrix,[[1,0,-cx],[0,1,-cy]]) -#-- skewX -- - if result.group(1)=="skewX": - a=float(result.group(2))*math.pi/180 - matrix=[[1,math.tan(a),0],[0,1,0]] -#-- skewY -- - if result.group(1)=="skewY": - a=float(result.group(2))*math.pi/180 - matrix=[[1,0,0],[math.tan(a),1,0]] -#-- matrix -- - if result.group(1)=="matrix": - a11,a21,a12,a22,v1,v2=result.group(2).replace(',',' ').split() - matrix=[[float(a11),float(a12),float(v1)], [float(a21),float(a22),float(v2)]] - - matrix=composeTransform(mat,matrix) - if result.end() < len(stransf): - return(parseTransform(stransf[result.end():], matrix)) - else: - return matrix - -def formatTransform(mat): - return ("matrix(%f,%f,%f,%f,%f,%f)" % (mat[0][0], mat[1][0], mat[0][1], mat[1][1], mat[0][2], mat[1][2])) - -def composeTransform(M1,M2): - a11 = M1[0][0]*M2[0][0] + M1[0][1]*M2[1][0] - a12 = M1[0][0]*M2[0][1] + M1[0][1]*M2[1][1] - a21 = M1[1][0]*M2[0][0] + M1[1][1]*M2[1][0] - a22 = M1[1][0]*M2[0][1] + M1[1][1]*M2[1][1] - - v1 = M1[0][0]*M2[0][2] + M1[0][1]*M2[1][2] + M1[0][2] - v2 = M1[1][0]*M2[0][2] + M1[1][1]*M2[1][2] + M1[1][2] - return [[a11,a12,v1],[a21,a22,v2]] - -def composeParents(node, mat): - trans = node.get('transform') - if trans: - mat = composeTransform(parseTransform(trans), mat) - if node.getparent().tag == inkex.addNS('g','svg'): - mat = composeParents(node.getparent(), mat) - return mat - -def applyTransformToNode(mat,node): - m=parseTransform(node.get("transform")) - newtransf=formatTransform(composeTransform(mat,m)) - node.set("transform", newtransf) - -def applyTransformToPoint(mat,pt): - x = mat[0][0]*pt[0] + mat[0][1]*pt[1] + mat[0][2] - y = mat[1][0]*pt[0] + mat[1][1]*pt[1] + mat[1][2] - pt[0]=x - pt[1]=y - -def applyTransformToPath(mat,path): - for comp in path: - for ctl in comp: - for pt in ctl: - applyTransformToPoint(mat,pt) - -def fuseTransform(node): - if node.get('d')==None: - #FIXME: how do you raise errors? - raise AssertionError, 'can not fuse "transform" of elements that have no "d" attribute' - t = node.get("transform") - if t == None: - return - m = parseTransform(t) - d = node.get('d') - p = cubicsuperpath.parsePath(d) - applyTransformToPath(m,p) - node.set('d', cubicsuperpath.formatPath(p)) - del node.attrib["transform"] - -#################################################################### -##-- Some functions to compute a rough bbox of a given list of objects. -##-- this should be shipped out in an separate file... - -def boxunion(b1,b2): - if b1 is None: - return b2 - elif b2 is None: - return b1 - else: - return((min(b1[0],b2[0]), max(b1[1],b2[1]), min(b1[2],b2[2]), max(b1[3],b2[3]))) - -def roughBBox(path): - xmin,xMax,ymin,yMax = path[0][0][0][0],path[0][0][0][0],path[0][0][0][1],path[0][0][0][1] - for pathcomp in path: - for ctl in pathcomp: - for pt in ctl: - xmin = min(xmin,pt[0]) - xMax = max(xMax,pt[0]) - ymin = min(ymin,pt[1]) - yMax = max(yMax,pt[1]) - return xmin,xMax,ymin,yMax - -def refinedBBox(path): - xmin,xMax,ymin,yMax = path[0][0][1][0],path[0][0][1][0],path[0][0][1][1],path[0][0][1][1] - for pathcomp in path: - for i in range(1, len(pathcomp)): - cmin, cmax = cubicExtrema(pathcomp[i-1][1][0], pathcomp[i-1][2][0], pathcomp[i][0][0], pathcomp[i][1][0]) - xmin = min(xmin, cmin) - xMax = max(xMax, cmax) - cmin, cmax = cubicExtrema(pathcomp[i-1][1][1], pathcomp[i-1][2][1], pathcomp[i][0][1], pathcomp[i][1][1]) - ymin = min(ymin, cmin) - yMax = max(yMax, cmax) - return xmin,xMax,ymin,yMax - -def cubicExtrema(y0, y1, y2, y3): - cmin = min(y0, y3) - cmax = max(y0, y3) - d1 = y1 - y0 - d2 = y2 - y1 - d3 = y3 - y2 - if (d1 - 2*d2 + d3): - if (d2*d2 > d1*d3): - t = (d1 - d2 + math.sqrt(d2*d2 - d1*d3))/(d1 - 2*d2 + d3) - if (t > 0) and (t < 1): - y = y0*(1-t)*(1-t)*(1-t) + 3*y1*t*(1-t)*(1-t) + 3*y2*t*t*(1-t) + y3*t*t*t - cmin = min(cmin, y) - cmax = max(cmax, y) - t = (d1 - d2 - math.sqrt(d2*d2 - d1*d3))/(d1 - 2*d2 + d3) - if (t > 0) and (t < 1): - y = y0*(1-t)*(1-t)*(1-t) + 3*y1*t*(1-t)*(1-t) + 3*y2*t*t*(1-t) + y3*t*t*t - cmin = min(cmin, y) - cmax = max(cmax, y) - elif (d3 - d1): - t = -d1/(d3 - d1) - if (t > 0) and (t < 1): - y = y0*(1-t)*(1-t)*(1-t) + 3*y1*t*(1-t)*(1-t) + 3*y2*t*t*(1-t) + y3*t*t*t - cmin = min(cmin, y) - cmax = max(cmax, y) - return cmin, cmax - -def computeBBox(aList,mat=[[1,0,0],[0,1,0]]): - bbox=None - for node in aList: - m = parseTransform(node.get('transform')) - m = composeTransform(mat,m) - #TODO: text not supported! - d = None - if node.get("d"): - d = node.get('d') - elif node.get('points'): - d = 'M' + node.get('points') - elif node.tag in [ inkex.addNS('rect','svg'), 'rect', inkex.addNS('image','svg'), 'image' ]: - d = 'M' + node.get('x', '0') + ',' + node.get('y', '0') + \ - 'h' + node.get('width') + 'v' + node.get('height') + \ - 'h-' + node.get('width') - elif node.tag in [ inkex.addNS('line','svg'), 'line' ]: - d = 'M' + node.get('x1') + ',' + node.get('y1') + \ - ' ' + node.get('x2') + ',' + node.get('y2') - elif node.tag in [ inkex.addNS('circle','svg'), 'circle', \ - inkex.addNS('ellipse','svg'), 'ellipse' ]: - rx = node.get('r') - if rx is not None: - ry = rx - else: - rx = node.get('rx') - ry = node.get('ry') - cx = float(node.get('cx', '0')) - cy = float(node.get('cy', '0')) - x1 = cx - float(rx) - x2 = cx + float(rx) - d = 'M %f %f ' % (x1, cy) + \ - 'A' + rx + ',' + ry + ' 0 1 0 %f,%f' % (x2, cy) + \ - 'A' + rx + ',' + ry + ' 0 1 0 %f,%f' % (x1, cy) - - if d is not None: - p = cubicsuperpath.parsePath(d) - applyTransformToPath(m,p) - bbox=boxunion(refinedBBox(p),bbox) - - elif node.tag == inkex.addNS('use','svg') or node.tag=='use': - refid=node.get(inkex.addNS('href','xlink')) - path = '//*[@id="%s"]' % refid[1:] - refnode = node.xpath(path) - bbox=boxunion(computeBBox(refnode,m),bbox) - - bbox=boxunion(computeBBox(node,m),bbox) - return bbox - - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 |