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authorJohan B. C. Engelen <jbc.engelen@swissonline.ch>2007-08-30 19:47:20 +0000
committerjohanengelen <johanengelen@users.sourceforge.net>2007-08-30 19:47:20 +0000
commit4f6395915aab15dfd6dd7bd63322b1bade6cab97 (patch)
treeedce72b40450336e32fdf94f8bba071a6c9660c7 /src/2geom/d2.cpp
parentTry to fix translation of LPE names. (diff)
downloadinkscape-4f6395915aab15dfd6dd7bd63322b1bade6cab97.tar.gz
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update 2geom to rev 1114 and fix error.
(bzr r3624)
Diffstat (limited to 'src/2geom/d2.cpp')
-rw-r--r--src/2geom/d2.cpp177
1 files changed, 0 insertions, 177 deletions
diff --git a/src/2geom/d2.cpp b/src/2geom/d2.cpp
deleted file mode 100644
index 86538062b..000000000
--- a/src/2geom/d2.cpp
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * d2.cpp - Lifts one dimensional objects into 2d
- *
- * Copyright 2007 Michael Sloan <mgsloan@gmail.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it either under the terms of the GNU Lesser General Public
- * License version 2.1 as published by the Free Software Foundation
- * (the "LGPL") or, at your option, under the terms of the Mozilla
- * Public License Version 1.1 (the "MPL"). If you do not alter this
- * notice, a recipient may use your version of this file under either
- * the MPL or the LGPL.
- *
- * You should have received a copy of the LGPL along with this library
- * in the file COPYING-LGPL-2.1; if not, output to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- * You should have received a copy of the MPL along with this library
- * in the file COPYING-MPL-1.1
- *
- * The contents of this file are subject to the Mozilla Public License
- * Version 1.1 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
- * OF ANY KIND, either express or implied. See the LGPL or the MPL for
- * the specific language governing rights and limitations.
- *
- */
-
-#include "d2.h"
-
-namespace Geom {
-
-SBasis L2(D2<SBasis> const & a, unsigned k) { return sqrt(dot(a, a), k); }
-double L2(D2<double> const & a) { return hypot(a[0], a[1]); }
-
-D2<SBasis> multiply(Linear const & a, D2<SBasis> const & b) {
- return D2<SBasis>(multiply(a, b[X]), multiply(a, b[Y]));
-}
-
-D2<SBasis> multiply(SBasis const & a, D2<SBasis> const & b) {
- return D2<SBasis>(multiply(a, b[X]), multiply(a, b[Y]));
-}
-
-D2<SBasis> truncate(D2<SBasis> const & a, unsigned terms) {
- return D2<SBasis>(truncate(a[X], terms), truncate(a[Y], terms));
-}
-
-unsigned sbasis_size(D2<SBasis> const & a) {
- return std::max((unsigned) a[0].size(), (unsigned) a[1].size());
-}
-
-//TODO: Is this sensical? shouldn't it be like pythagorean or something?
-double tail_error(D2<SBasis> const & a, unsigned tail) {
- return std::max(a[0].tailError(tail), a[1].tailError(tail));
-}
-
-Piecewise<D2<SBasis> > sectionize(D2<Piecewise<SBasis> > const &a) {
- Piecewise<SBasis> x = partition(a[0], a[1].cuts), y = partition(a[1], a[0].cuts);
- assert(x.size() == y.size());
- Piecewise<D2<SBasis> > ret;
- for(unsigned i = 0; i < x.size(); i++)
- ret.push_seg(D2<SBasis>(x[i], y[i]));
- ret.cuts.insert(ret.cuts.end(), x.cuts.begin(), x.cuts.end());
- return ret;
-}
-
-D2<Piecewise<SBasis> > make_cuts_independant(Piecewise<D2<SBasis> > const &a) {
- D2<Piecewise<SBasis> > ret;
- for(unsigned d = 0; d < 2; d++) {
- for(unsigned i = 0; i < a.size(); i++)
- ret[d].push_seg(a[i][d]);
- ret[d].cuts.insert(ret[d].cuts.end(), a.cuts.begin(), a.cuts.end());
- }
- return ret;
-}
-
-Piecewise<D2<SBasis> > rot90(Piecewise<D2<SBasis> > const &M){
- Piecewise<D2<SBasis> > result;
- if (M.empty()) return M;
- result.push_cut(M.cuts[0]);
- for (unsigned i=0; i<M.size(); i++){
- result.push(rot90(M[i]),M.cuts[i+1]);
- }
- return result;
-}
-
-Piecewise<SBasis> dot(Piecewise<D2<SBasis> > const &a,
- Piecewise<D2<SBasis> > const &b){
- Piecewise<SBasis > result;
- if (a.empty() || b.empty()) return result;
- Piecewise<D2<SBasis> > aa = partition(a,b.cuts);
- Piecewise<D2<SBasis> > bb = partition(b,a.cuts);
-
- result.push_cut(aa.cuts.front());
- for (unsigned i=0; i<aa.size(); i++){
- result.push(dot(aa.segs[i],bb.segs[i]),aa.cuts[i+1]);
- }
- return result;
-}
-
-Piecewise<SBasis> cross(Piecewise<D2<SBasis> > const &a,
- Piecewise<D2<SBasis> > const &b){
- Piecewise<SBasis > result;
- if (a.empty() || b.empty()) return result;
- Piecewise<D2<SBasis> > aa = partition(a,b.cuts);
- Piecewise<D2<SBasis> > bb = partition(b,a.cuts);
-
- result.push_cut(aa.cuts.front());
- for (unsigned i=0; i<a.size(); i++){
- result.push(cross(aa.segs[i],bb.segs[i]),aa.cuts[i+1]);
- }
- return result;
-}
-
-/* Replaced by remove_short_cuts in piecewise.h
-//this recursively removes the shortest cut interval until none is shorter than tol.
-//TODO: code this in a more efficient way!
-Piecewise<D2<SBasis> > remove_short_cuts(Piecewise<D2<SBasis> > const &f, double tol){
- double min = tol;
- unsigned idx = f.size();
- for(unsigned i=0; i<f.size(); i++){
- if (min > f.cuts[i+1]-f.cuts[i]){
- min = f.cuts[i+1]-f.cuts[i];
- idx = int(i);
- }
- }
- if (idx==f.size()){
- return f;
- }
- if (f.size()==1) {
- //removing this seg would result in an empty pw<d2<sb>>...
- return f;
- }
- Piecewise<D2<SBasis> > new_f=f;
- for (int dim=0; dim<2; dim++){
- double v = Hat(f.segs.at(idx)[dim][0]);
- //TODO: what about closed curves?
- if (idx>0 && f.segs.at(idx-1).at1()==f.segs.at(idx).at0())
- new_f.segs.at(idx-1)[dim][0][1] = v;
- if (idx<f.size() && f.segs.at(idx+1).at0()==f.segs.at(idx).at1())
- new_f.segs.at(idx+1)[dim][0][0] = v;
- }
- double t = (f.cuts.at(idx)+f.cuts.at(idx+1))/2;
- new_f.cuts.at(idx+1) = t;
-
- new_f.segs.erase(new_f.segs.begin()+idx);
- new_f.cuts.erase(new_f.cuts.begin()+idx);
- return remove_short_cuts(new_f, tol);
-}
-*/
-
-//if tol>0, only force continuity where the jump is smaller than tol.
-Piecewise<D2<SBasis> > force_continuity(Piecewise<D2<SBasis> > const &f,
- double tol,
- bool closed){
- if (f.size()==0) return f;
- Piecewise<D2<SBasis> > result=f;
- unsigned cur = (closed)? 0:1;
- unsigned prev = (closed)? f.size()-1:0;
- while(cur<f.size()){
- Point pt0 = f.segs[prev].at1();
- Point pt1 = f.segs[cur ].at0();
- if (tol<=0 || L2sq(pt0-pt1)<tol*tol){
- pt0 = (pt0+pt1)/2;
- for (unsigned dim=0; dim<2; dim++){
- result.segs[prev][dim][0][1]=pt0[dim];
- result.segs[cur ][dim][0][0]=pt0[dim];
- }
- }
- prev = cur++;
- }
- return result;
-}
-
-};