mirror of
git://projects.qi-hardware.com/cae-tools.git
synced 2024-12-23 12:58:58 +02:00
d77b4c8570
- cameo/cameo.c (process_paths): explain the inside/outside path detection heuristics - cameo/path.h (struct path), cameo/path.c (path_new): added attribute "outside" to explicitly mark paths as outside edges - cameo/path.c (path_from): new function to make a path that takes the attributes of another path - cameo/path.c (path_reverse, path_offset): use path_from instead of path_new - cameo/gnuplot.c (gnuplot_read, gnuplot_do_write): read and write the #%outside hint
96 lines
2.0 KiB
C
96 lines
2.0 KiB
C
/*
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* cameo.c - Toolpath adaptation and machine control
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*
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* Written 2010 by Werner Almesberger
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* Copyright 2010 Werner Almesberger
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*
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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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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "path.h"
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#include "gnuplot.h"
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static void process_path(struct path *path, int inside)
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{
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int left;
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struct path *new;
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left = path_tool_is_left(path);
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if (inside)
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new = path_offset(path, !left, 0);
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else
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new = path_offset(path, left, 1);
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path_replace(path, new);
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}
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static void process_paths(struct path *paths)
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{
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struct path *leftmost, *path;
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/*
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* We don't have an algorithm (yet) that can detect which paths are
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* inside other paths. Therefore, we fake it by looking for the path
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* that contains lowest x coordinate. This ought to be the outer
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* boundary of the piece.
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*
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* Note that this heuristic falls apart when a job consists of
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* multiple pieces. In this case, the #%outside hint can be used to
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* explicitly tell cameo to treat the path as an outside edge.
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*/
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leftmost = path_find_leftmost(paths);
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for (path = paths; path; path = path->next)
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if (path != leftmost && !path->outside)
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process_path(path, 1);
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for (path = paths; path; path = path->next)
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if (path != leftmost && path->outside)
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process_path(path, 0);
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process_path(leftmost, 0);
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}
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static void usage(const char *name)
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{
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fprintf(stderr, "usage: %s r_mm [in.gnuplot [out.gnuplot]]\n",
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name);
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exit(1);
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}
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int main(int argc, char **argv)
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{
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char *in = NULL, *out = NULL;
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double r;
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struct path *paths;
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switch (argc) {
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case 4:
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out = argv[3];
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/* fall through */
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case 3:
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in = argv[2];
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/* fall through */
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case 2:
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r = atof(argv[1]);
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break;
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default:
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usage(*argv);
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}
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paths = gnuplot_read(in, r);
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process_paths(paths);
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gnuplot_write(out, paths);
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return 0;
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}
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