mirror of
git://projects.qi-hardware.com/cae-tools.git
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7354edee2b
Mainly for the M1 case design: http://projects.qi-hardware.com/index.php/p/m1/source/tree/master/cad/protocase_v7_laser.dxf
100 lines
2.0 KiB
Perl
Executable File
100 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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# dxf2gp - Convert simple DXF to Gnuplot
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#
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# Written 2011 by Werner Almesberger
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# Copyright 2011 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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#
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# Currently, only the directives LINE, CIRCLE, and ARC are supported.
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# Adjacent line segments are not merged. Arcs and circles are translated
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# to (multi-segment) lines.
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#
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# The main purpose of this script is currently to convert the M1 case
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# design:
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# http://projects.qi-hardware.com/index.php/p/m1/source/tree/master/cad/protocase_v7_laser.dxf
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#
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$S_SCAN = 0; # wait for LINE, CIRCLE, or ARC
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$S_ByLayer = 1; # next is ByLayer
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$S_INDEX = 2; # next is index
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$S_DATA = 3; # next is indexed data
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$S_MARKER = 4; # next is subclass marker
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sub line
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{
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print "$_[10] $_[20]\n$_[11] $_[21]\n\n";
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}
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sub circle
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{
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local ($x, $y, $r) = ($_[10], $_[20], $_[40]);
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for (my $i = 0; $i != 100; $i++) {
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local $v = 3.14159265*2/100*$i;
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print $x+$r*sin($v), " ", $y+$r*cos($v), "\n";
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}
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print $x, " ", $y+$r, "\n\n";
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}
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sub arc
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{
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local ($x, $y, $r) = ($_[10], $_[20], $_[40]);
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local ($a0, $a1) = ($_[50], $_[51]);
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$a1 += 360 if $a1 < $a0;
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for (my $a = $a0; $a <= $a1; $a += 2) {
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local $v = 3.14159265/180*$a;
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print $x+$r*cos($v), " ", $y+$r*sin($v), "\n";
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}
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print "\n";
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}
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$s = $S_SCAN;
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while (<>) {
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if ($s == $S_SCAN) {
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if (/^LINE\b/) {
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*fn = *line;
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} elsif (/^CIRCLE/) {
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*fn = *circle;
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} elsif (/^ARC/) {
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*fn = *arc;
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} else {
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next;
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}
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$s = $S_ByLayer;
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next;
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} elsif ($s == $S_ByLayer) {
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if (/^ByLayer/) {
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$s = $S_INDEX;
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}
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next;
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} elsif ($s == $S_INDEX) {
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if ($_ == 0) {
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&fn(@a);
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@a = ();
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$s = $S_SCAN;
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} elsif ($_ == 100) {
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$s = $S_MARKER;
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} else {
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$index = $_;
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$s = $S_DATA;
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}
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} elsif ($s == $S_DATA) {
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$a[$index] = $_+0;
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$s = $S_INDEX;
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} elsif ($s == $S_MARKER) {
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$s = $S_INDEX;
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} else {
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die;
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}
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}
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