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cameo/area-poly2d.c (area): fail if any paths are open
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@ -1,8 +1,8 @@
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/*
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/*
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* area-poly2d.c - Area fill (using libpoly2d)
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* area-poly2d.c - Area fill (using libpoly2d)
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*
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*
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* Written 2012 by Werner Almesberger
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* Written 2012, 2015 by Werner Almesberger
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* Copyright 2012 Werner Almesberger
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* Copyright 2012, 2015 Werner Almesberger
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*
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*
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* This program is free software; you can redistribute it and/or modify
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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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* it under the terms of the GNU General Public License as published by
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@ -10,6 +10,8 @@
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* (at your option) any later version.
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* (at your option) any later version.
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*/
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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#include <math.h>
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#include "poly2d.h"
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#include "poly2d.h"
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@ -47,7 +49,16 @@ struct path *area(const struct path *paths, double overlap)
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double z = HUGE_VAL, best_z;
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double z = HUGE_VAL, best_z;
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const struct path *path;
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const struct path *path;
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struct path *res = NULL, **last = &res;
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struct path *res = NULL, **last = &res;
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unsigned n = 0, bad = 0;
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for (path = paths; path; path = path->next) {
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bad += !path_is_closed(path);
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n++;
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}
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if (bad) {
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fprintf(stderr, "%u/%u open paths\n", bad, n);
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exit(1);
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}
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while (1) {
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while (1) {
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best_z = -HUGE_VAL;
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best_z = -HUGE_VAL;
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for (path = paths; path; path = path->next) {
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for (path = paths; path; path = path->next) {
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