15 our $output_layer= '*';
17 our $subsegmovfeatpos='f';
18 our $subsegcmapangscale;
20 our $ps_page_shift= 615;
21 our $ps_page_xmul= 765.354;
22 our $ps_page_ymul= 538.583;
28 our $drawers= 'arsclmnog';
29 our %chdraw_emap= qw(A ARScg
43 while (@ARGV && $ARGV[0] =~ m/^\-/) {
44 last if $ARGV[0] eq '-';
49 if (s/^D(\d+)//) { $debug= $1; }
50 elsif (s/^D//) { $debug++; }
51 elsif (s/^q//) { $quiet=1; }
52 elsif (s/^l(\d+|\*)//) { $output_layer=$1; }
53 elsif (s/^S([0-9.]+)$//) { $scale= $1 * 1.0; }
54 elsif (s/^P(\d+)x(\d+)$//) { $page_x= $1; $page_y= $2; }
55 elsif (s/^GR//) { $subsegcmapreq=1; }
56 elsif (s/^GP(\d+|f)$//) { $subsegmovfeatpos=$1; }
57 elsif (s/^GL(.*)$//) {
59 my ($sscmf, $datum, $csss, $angbits);
61 $sscmf= new IO::File $sscmfn, 'r'
62 or die "$sscmfn: cannot open: $!\n";
64 $!=0; $_= <$sscmf>; die $! unless defined $_;
67 m,^C\s+(\w*/(?:[A-Za-z_]+)?)\s+(0x[0-9a-f]+)\s+(\d+)\s*$,
68 or die "$sscmfn:$.: syntax error in subseg cmap\n";
69 ($csss,$datum,$angbits)= ($1,$2,$3);
70 if (!defined $subsegcmapangscale) {
71 $subsegcmapangscale= 1<<$angbits;
73 die "angbits varies" if $subsegcmapangscale != 1<<$angbits;
77 die "sorry, cannot put any movfeatpos or segment in red";
79 $subsegcmap{$csss}= sprintf("%.6f %.6f",
80 (($datum >> 8) & 0xff)/255.0,
81 (($datum >> 16) & 0xff)/255.0);
83 $sscmf->error and die "$sscmfn: error reading: $!\n";
86 ((?:[a-z]|\*|\?|\[[a-z][-a-z]*\])*?)
87 (\~?) (\d*) (\=*|\-+|\++) (\d*|\*)
89 my ($ee,$g,$n,$d,$c,$v,$cc) = ($1,$2,$3,$4,$5,$6,$7);
90 my ($eo, $invert, $lfn, $ccc, $sense,$limit);
91 $g =~ s/\?/\./g; $g =~ s/\*/\.\*/g;
92 die '-[eE]GND[=]* not allowed' if $v eq '*' && length $d;
93 $d= $output_layer if !length $d;
96 $c= '=' if !length $c;
97 if (length $v && $v ne '*') {
98 die '-[eE]GN[D]CCV not allowed' if length $c > 1;
101 if ($c =~ m/^[-+]/) {
102 die '-[eE]GN+/-* not allowed' if $v eq '*';
103 $sense= ($&.'1') + 0;
104 $limit= ($sense * $d) + length($c) - 1;
106 ($output_layer eq '*' ? $d
107 : $_[0]) * $sense >= $limit
110 } elsif ($v eq '*') {
111 $lfn= sub { !$invert; };
113 $limit= length($c) - 1;
116 ($output_layer eq '*' ? 1
117 : abs($_[0] - $d) <= $limit)
121 #print STDERR "output layer $output_layer; asking re $_[0] rel $d lim $limit invert $invert result $lfn_result\n";
126 foreach $c (split //, $cc) {
128 die "bad -e option $c" unless defined $chdraw_emap{$c};
129 $ccc .= $chdraw_emap{$c};
131 die "bad -E option $c" unless $c =~ m/[$drawers]/i;
136 $eo->{LayerCheck}= $lfn;
137 $eo->{DrawMods}= $ccc;
138 #print STDERR "created eo $eo re $eo->{GlobRe} n=$n d=$d v=$v c=$c limit=$limit cc=$cc\n";
141 die "-S option must come right at the start and have numeric arg";
143 die "unknown option -$_";
148 our $ptscale= 72/25.4 / $scale;
151 our $psu_edgelw= 0.5;
152 our $psu_ticklw= 0.1;
153 our $psu_ticksperu= 1;
154 our $psu_ticklen= 5.0;
156 our $psu_sleeperlen= 17;
157 our $psu_sleeperlw= 15;
158 our $psu_raillw= 1.0;
159 our $psu_thinlw= 1.0;
161 $psu_subseglw{'e'}= 20.0;
162 $psu_subseglw{'m'}= 15.0;
165 our $lmu_marktpt= 11;
166 our $lmu_txtboxtxty= $lmu_marktpt * 0.300;
167 our $lmu_txtboxh= $lmu_marktpt * 1.100;
168 our $lmu_txtboxpadx= $lmu_marktpt * 0.335;
169 our $lmu_txtboxoff= $lmu_marklw / 2;
170 our $lmu_txtboxlw= 1;
172 our $olu_left= 10 * $scale;
173 our $olu_right= 217 * $scale - $olu_left;
174 our $olu_bottom= 20 * $scale;
175 our $olu_top= 270 * $scale - $olu_bottom;
178 our $olu_textheight= 15;
179 our $olu_textallowperc= $lmu_marktpt * 5.0/11;
181 our $pi= atan2(0,-1);
185 return 27 unless defined $radius;
186 $radius= abs($radius);
187 return ($radius >= 450 ? 33 :
188 $radius >= 400 ? 35 :
191 sub allwidth ($) { return allwidth2($_[0]) * 0.5; }
193 our $allwidthmax= allwidth(0);
194 our $allwidthmin= allwidth(undef);
197 # $ctx->{CmdLog}= undef } not in defobj
198 # $ctx->{CmdLog}[]= [ command args ] } in defobj
199 # $ctx->{Parent}= $parent_ctx or undef
200 # $ctx->{LocsMade}[]{Id}= $id
201 # $ctx->{LocsMade}[]{Neg}= 1 or 0
202 # $ctx->{Loc}{$id}{X}
203 # $ctx->{Loc}{$id}{Y}
204 # $ctx->{Loc}{$id}{A}
205 # $ctx->{Loc}{$id}{LayerKind}
206 # $ctx->{Trans}{X} # transformation. is ev representing
207 # $ctx->{Trans}{Y} # new origin. (is applied at _input_
208 # $ctx->{Trans}{A} # not at plot-time)
209 # $ctx->{Trans}{R} # but multiply all y coords by this!
210 # $ctx->{Draw} # sequence of one or more chrs from uc $drawers
211 # # possibly including X meaning never draw
212 # # anything now (eg in defobj)
213 # $ctx->{DrawMap} # =$fn s.t.
214 # # &$fn($drawchrs_spec_by_layer_cmdline)
215 # # = $drawchrs_we_should_use_due_to_obj_etc
216 # $ctx->{SegName} # initial segment name (at start of object or file)
217 # # or nonexistent if in object in unknown segment
218 # # may have leading `-'
219 # $ctx->{SegMapN}{$s}= $o
220 # $ctx->{SegMapNM}{$s}= $o
221 # $ctx->{SavedSegment} # exists iff segment command used, is a $csss
222 # $ctx->{Layer}{Level}
223 # $ctx->{Layer}{Kind}
227 # $objs{$id}{Part} # 1 iff object is a part
229 # $eopts[]{GlobRe} # regexp for K
230 # $eopts[]{LayerCheck} # =$fn where &$fn($l) is true iff layer matches
231 # $eopts[]{DrawMods} # modifier chars for drawing
233 # @segments= ( $csss0, $dist0, $csss1, $dist1, ..., $csssn )
234 # # here each csss may have preceding `-'
236 # $subsegcmap{$csss} = "$green $blue"
237 # # $csss is canonical subseg spec; always has '/'
241 our @al; # current cmd
246 our $param; # for parametric_segment
250 # Operate on Enhanced Vectors which are a location (coordinates) and a
251 # direction at that location. Representation is a hash with members X
252 # Y and A (angle of the direction in radians, anticlockwise from
253 # East). May be absolute, or interpreted as relative, according to
256 # Each function's first argument is a hashref whose X Y A members will
257 # be created or overwritten; this hashref will be returned (so you can
258 # use it `functionally' by passing {}). The other arguments may be ev
259 # hashrefs, or other info. The results are in general undefined if
260 # one of the arguments is the same hash as the result.
262 sub ev_byang ($$;$) {
263 # ev_byang(R, ANG,[LEN])
264 # result is evec LEN (default=1.0) from origin pointing in direction ANG
265 my ($res,$ang,$len)=@_;
266 $len=1.0 unless defined $len;
267 $res->{X}= $len * cos($ang);
268 $res->{Y}= $len * sin($ang);
272 sub ev_compose ($$$) {
273 # ev_compose(SUM_R, A,B);
274 # appends B to A, result is end of new B
275 # (B's X is forwards from end of A, Y is translating left from end of A)
276 # A may have a member R, which if provided then it should be 1.0 or -1.0,
277 # and B's Y and A will be multiplied by R first (ie, we can reflect);
278 my ($sum,$a,$b) = @_;
280 $r= defined $a->{R} ? $a->{R} : 1.0;
281 $sum->{X}= $a->{X} + $b->{X} * cos($a->{A}) - $r * $b->{Y} * sin($a->{A});
282 $sum->{Y}= $a->{Y} + $r * $b->{Y} * cos($a->{A}) + $b->{X} * sin($a->{A});
283 $sum->{A}= $a->{A} + $r * $b->{A};
286 sub ev_decompose ($$$) {
287 # ev_decompose(B_R, A,SUM)
288 # computes B_R s.t. ev_compose({}, A, B_R) gives SUM
291 $r= defined $a->{R} ? $a->{R} : 1.0;
292 $brx= $sum->{X} - $a->{X};
293 $bry= $r * ($sum->{Y} - $a->{Y});
294 $b->{X}= $brx * cos($a->{A}) + $bry * sin($a->{A});
295 $b->{Y}= $bry * cos($a->{A}) - $brx * sin($a->{A});
296 $b->{A}= $r * ($sum->{A} - $a->{A});
299 sub ev_lincomb ($$$$) {
300 # ev_linkcomb(RES,A,B,P)
301 # gives P*A + (1-P)*B
302 my ($r,$a,$b,$p) = @_;
304 map { $r->{$_} = $q * $a->{$_} + $p * $b->{$_} } qw(X Y A);
307 sub a_normalise ($$) {
309 # adds or subtracts 2*$pi to/from A until it is in [ Z , Z+2*$pi >
312 $r= $z + fmod($a - $z, 2.0*$pi);
313 $r += 2*$pi if $r < $z;
316 sub ev_bearing ($$) {
318 # returns bearing of B from A
319 # value returned is in [ A->{A}, A->{A} + 2*$pi >
320 # A->{A} and B->{A} are otherwise ignored
323 $r= atan2($b->{Y} - $a->{Y},
325 $r= a_normalise($r,$a->{A});
329 sub v_rotateright ($) {
331 # returns image of A rotated 90 deg clockwise
333 return { X => $a->{Y}, Y => -$a->{X} };
335 sub v_dotproduct ($$) {
338 return $a->{X} * $b->{X} + $a->{Y} * $b->{Y};
340 sub v_scalarmult ($$) {
342 # multiplies V by scalar S and returns product
344 return { X => $s * $v->{X}, Y => $s * $v->{Y} };
348 # vector sum of all inputs
351 $r= { X => 0.0, Y => 0.0 };
352 foreach $i (@i) { $r->{X} += $i->{X}; $r->{Y} += $i->{Y}; }
355 sub v_subtract ($$) {
357 # returns vector from A to B, ie B - A
359 return { X => $b->{X} - $a->{X},
360 Y => $b->{Y} - $a->{Y} };
366 my ($x,$y) = ($v->{X}, $v->{Y});
367 return sqrt($x*$x + $y*$y);
371 # returns distance from A to B
372 return v_len(v_subtract($_[0],$_[1]));
377 $$limr= $now unless defined $$limr && $$limr <= $now;
381 $$limr= $now unless defined $$limr && $$limr >= $now;
385 my ($converter,$defaulter)=@_;
387 return &$defaulter unless @al;
389 $v= &$converter($spec);
390 dv('canf ','$spec',$spec, '$v',$v);
393 sub can ($) { my ($c)=@_; canf($c, sub { die "too few args"; }); }
394 sub cano ($$) { my ($c,$def)=@_; canf($c, sub { return $def }); }
396 sub signum ($) { return ($_[0] > 0) - ($_[0] < 0); }
400 my ($min_x, $max_x, $min_y, $max_y);
402 foreach $loc (values %$objhash) {
403 upd_min(\$min_x, $loc->{X} - abs($allwidthmax * sin($loc->{A})));
404 upd_max(\$max_x, $loc->{X} + abs($allwidthmax * sin($loc->{A})));
405 upd_min(\$min_y, $loc->{Y} - abs($allwidthmax * cos($loc->{A})));
406 upd_max(\$max_y, $loc->{Y} + abs($allwidthmax * cos($loc->{A})));
408 return ($min_x, $max_x, $min_y, $max_y);
411 our %units_len= qw(- mm mm 1 cm 10 m 1000);
412 our %units_ang= qw(- d r 1); $units_ang{'d'}= 2*$pi / 360;
414 sub cva_len ($) { my ($sp)=@_; cva_units($sp,\%units_len); }
415 sub cva_identity ($) { my ($sp)=@_; $sp; }
416 sub cva_ang ($) { my ($sp)=@_; cva_units($sp,\%units_ang); }
417 sub cva_absang ($) { input_absang(cva_ang($_[0])) }
421 $sp =~ m/^([-0-9eE.]*[0-9.])([A-Za-z]*)$/
422 or die "lexically invalid quantity";
424 $u=$ua->{'-'} unless length $u;
425 defined $ua->{$u} or die "unknown unit $u";
427 print DEBUG "cva_units($sp,)=$r ($n $u $ua->{$u})\n";
432 die "invalid id" unless $sp =~ m/^[a-z][_0-9A-Za-z]*$/;
437 my ($id,$r,$d,$k,$neg,$na,$obj_id,$vflip,$locs);
438 if ($sp =~ s/^(\^?)(\w+)\!//) {
441 die "invalid obj $obj_id in loc" unless exists $objs{$obj_id};
442 $locs= $objs{$obj_id}{Loc};
447 $neg= $sp =~ s/^\-//;
449 die "unknown $id" unless defined $locs->{$id};
452 foreach $k (sort keys %$r) { $d .= " $k=$r->{$k}"; }
453 printf DEBUG "%s\n", $d;
455 $r= { X => $r->{X}, Y => -$r->{Y}, A => -$r->{A} };
459 $na= a_normalise($na,0);
460 $r= { X => $r->{X}, Y => $r->{Y}, A => $na };
467 $neg = $sp =~ s/^\-//;
469 die "duplicate $id" if exists $ctx->{Loc}{$id};
470 $ctx->{Loc}{$id}{LayerKind}= $ctx->{Layer}{Kind};
471 push @{ $ctx->{LocsMade} }, {
475 return $ctx->{Loc}{$id};
477 sub cva_cmd ($) { return cva_idstr($_[0]); }
480 return $sp if grep { $_ eq $sp } @$el;
481 die "invalid option (permitted: @$el)";
483 sub cvam_enum { my (@e) = @_; return sub { cva__enum($_[0],\@e); }; }
487 $nl= can(\&cva_idnew);
488 $i->{X}= can(\&cva_len);
489 $i->{Y}= can(\&cva_len);
490 $i->{A}= can(\&cva_ang);
491 ev_compose($nl, $ctx->{Trans}, $i);
494 my ($from,$to,$len,$right,$turn);
495 $from= can(\&cva_idex);
496 $to= can(\&cva_idnew);
497 $len= cano(\&cva_len,0);
498 $right= cano(\&cva_len,0) * $ctx->{Trans}{R};
499 $turn= cano(\&cva_ang, 0) * $ctx->{Trans}{R};
500 my ($u)= ev_compose({}, $from, { X => $len, Y => -$right, A => 0 });
501 ev_compose($to, $u, { X => 0, Y => 0, A => $turn });
506 $pfx . ($pfx =~ m/\}$|\]$/ ? '' : '->');
510 return 'undef' if !defined $v;
511 return $v if $v !~ m/\W/ && $v =~ m/[A-Z]/ && $v =~ m/^[a-z_]/i;
512 return $v if $v =~ m/^[0-9.]+/;
513 $v =~ s/[\\\']/\\$&/g;
517 sub dv1_kind ($$$$$$$) {
518 my ($pfx,$expr,$ref,$ref_exp,$ixfmt,$ixesfn,$ixmapfn) = @_;
520 return 0 if $ref ne $ref_exp;
522 foreach $ix (&$ixesfn) {
524 my ($v)= &$ixmapfn($ix);
525 #print STDERR "dv1_kind($pfx,$expr,$ref,$ref_exp,$ixmapfn) ix=$ix v=$v\n";
526 dv1($pfx,$expr.sprintf($ixfmt,dv__evr($ix)),$v);
529 printf DEBUG "%s%s= $ixfmt\n", $pfx, $expr, ' ';
534 return 0 unless $debug;
535 my ($pfx,$expr,$v) = @_;
538 #print STDERR "dv1 >$pfx|$ref<\n";
540 printf DEBUG "%s%s= %s\n", $pfx,$expr, dv__evr($v);
542 } elsif ($ref eq 'SCALAR') {
543 dv1($pfx, ($expr =~ m/^\$/ ? "\$$expr" : '${'.$expr.'}'), $$v);
546 $expr.='->' unless $expr =~ m/\]$|\}$/;
547 return if dv1_kind($pfx,$expr,$ref,'ARRAY','[%s]',
548 sub { ($[ .. $#$v) },
549 sub { $v->[$_[0]] });
550 return if dv1_kind($pfx,$expr,$ref,'HASH','{%s}',
551 sub { sort keys %$v },
552 sub { $v->{$_[0]} });
553 printf DEBUG "%s%s is %s\n", $pfx, $expr, $ref;
565 sub o ($) { $o .= $_[0]; }
566 sub ol ($) { $ol .= $_[0]; }
568 return if $subsegcmapreq;
569 print $o, $ol, " showpage\n"
576 sub o_path_begin () {
578 $o_path_verb= 'moveto';
580 sub o_path_point ($) {
582 o(" $pt $o_path_verb\n");
583 $o_path_verb= 'lineto';
585 sub o_path_stroke ($) {
587 o(" $width setlinewidth stroke\n");
589 sub o_path_strokeonly () {
594 my ($a,$b,$width)=@_;
598 o_path_stroke($width);
601 sub current_draw () {
603 $r= $ctx->{Draw} =~ m/X/ ? '' : $ctx->{Draw};
607 sub psu_coords ($$$) {
608 my ($ends,$inunit,$across)=@_;
609 # $ends->[0]{X} etc.; $inunit 0 to 1 (but go to 1.5);
610 # $across in mm, +ve to right.
611 my (%ea_zo, $zo, $prop);
612 $ea_zo{X}=$ea_zo{Y}=0;
613 foreach $zo (qw(0 1)) {
614 $prop= $zo ? $inunit : (1.0 - $inunit);
615 $ea_zo{X} += $prop * ($ends->[$zo]{X} - $across * sin($ends->[0]{A}));
616 $ea_zo{Y} += $prop * ($ends->[$zo]{Y} + $across * cos($ends->[0]{A}));
618 # dv("psu_coords ", '$ends',$ends, '$inunit',$inunit, '$across',$across,
619 # '\\%ea_zo', \%ea_zo);
620 return $ea_zo{X}." ".$ea_zo{Y};
623 sub parametric__o_pt ($) {
625 o_path_point("$pt->{X} $pt->{Y}");
628 our $segused_incurrent;
629 our $segused_currentpt;
630 our $segmentpart_counter=0;
631 our $segused_restorecounter;
633 sub segment_used__print ($) {
635 if ($segused_incurrent > 0 && $segused_restorecounter==1) {
637 $segmentpart_counter++." ".
638 $ctx->{Layer}{Level}.$ctx->{Layer}{Kind}." ".
640 $segused_incurrent." ".
641 loc2dbg($segused_currentpt)." ".
644 $segused_incurrent= undef;
645 $segused_currentpt= undef;
648 sub segment_used__len ($$) {
650 $segused_incurrent++;
652 return if @segments < 3;
653 $segments[1] -= $used;
654 return if $segments[1] > 0;
656 segment_used__print($pt);
657 segment_used_begin($pt);
659 @segments= @segments[2..$#segments];
660 o("% segments @segments\n");
663 sub segment_state_save () {
664 return [ 0, $segused_incurrent, $segused_currentpt,
665 $segmentpart_counter, @segments ];
667 sub segment_state_restore ($) {
669 ($segused_restorecounter, $segused_incurrent, $segused_currentpt,
670 $segmentpart_counter, @segments) = @$r;
674 sub segment_used_begin ($) {
675 $segused_incurrent= 0;
676 $segused_currentpt= $_[0];
678 sub segment_used_middle ($$) {
680 segment_used__len($used,$pt);
682 sub segment_used_end ($$) {
684 segment_used__len($used,$pt);
685 segment_used__print($pt);
687 sub parametric_segment ($$$$$) {
688 my ($p0,$p1,$lenperp,$minradius,$calcfn) = @_;
689 # makes $p (global) go from $p0 to $p1 ($p1>$p0)
690 # $lenperp is the length of one unit p, ie the curve
691 # must have a uniform `density' in parameter space
692 # $calcfn is invoked with $p set and should return a loc
693 # (ie, ref to X =>, Y =>, A =>).
694 my ($pa,$pb,@ends,$side,$ppu,$e,$v,$tick,$draw,$allwidth);
695 return unless $ctx->{Draw} =~ m/[ARSCG]/;
696 $ppu= $psu_ulen/$lenperp;
697 $allwidth= allwidth($minradius);
698 my ($railctr)=($psu_gauge + $psu_raillw)*0.5;
699 my ($tickend)=($allwidth - $psu_ticklen);
700 my ($tickpitch)=($psu_ulen / $psu_ticksperu);
701 my ($sleeperctr)=($psu_ulen*0.5);
702 my ($sleeperend)=($psu_sleeperlen*0.5);
703 print DEBUG "ps $p0 $p1 $lenperp ($ppu)\n";
704 $draw= current_draw();
706 my ($pt,$going,$red,$csegbare,$movfeat,$movstroke);
707 my ($used_last,$me,$segsave);
708 $segsave= segment_state_save();
709 foreach $me (qw(e m)) {
710 segment_state_restore($segsave);
712 o("% segments @segments\n");
715 segment_used_begin($pt);
717 $movstroke= " cmapreq-stroke\n";
718 $csegbare= $segments[0];
719 $csegbare =~ s/^\-//;
720 if ($subsegcmapreq) {
721 if (!exists $subsegcmap{$csegbare}) {
722 print "$csegbare\n" or die $!;
723 $subsegcmap{$csegbare}++;
726 $movfeat= $csegbare =~ s,(/\D+)(\d+)$,$1, ? $2 : 'f';
727 die "unknown subsegment colour for $csegbare\n"
728 unless exists $subsegcmap{$csegbare};
729 $red= $pt->{A} / (2*$pi);
730 $red *= $subsegcmapangscale;
731 $red += $subsegcmapangscale*2;
732 $red += $subsegcmapangscale/2 if $segments[0] =~ m/^\-/;
733 $red %= $subsegcmapangscale;
734 $red += $subsegcmapangscale if $me eq 'e';
735 $red= sprintf("%f", $red / 255.0);
737 (" $red $subsegcmap{$csegbare} setrgbcolor\n".
738 " $psu_subseglw{$me} setlinewidth stroke\n");
739 if ($subsegmovfeatpos ne $movfeat ||
740 ($me eq 'e' && $csegbare =~ m,^/,)) {
741 $movstroke= "% no-stroke\n";
745 parametric__o_pt($pt);
750 segment_used_middle($psu_ulen,$pt);
751 parametric__o_pt($pt);
754 $used_last= $p1-($param-$ppu);
757 segment_used_end($used_last * $lenperp, $pt);
758 parametric__o_pt($pt);
764 o(" $psu_thinlw setlinewidth\n");
766 for ($param=$p0; $param<$p1; $param += $ppu) {
767 parametric__o_pt(&$calcfn);
770 parametric__o_pt(&$calcfn);
773 return unless $draw =~ m/[ARS]/;
774 for ($pa= $p0; $pa<$p1; $pa=$pb) {
776 $param= $pa; $ends[0]= @ends ? $ends[1] : &$calcfn;
777 $param= $pb; $ends[1]= &$calcfn;
778 #print DEBUG "pa $pa $ends[0]{X} $ends[0]{Y} $ends[0]{A}\n";
779 #print DEBUG "pb $pb $ends[1]{X} $ends[1]{Y} $ends[1]{A}\n";
780 $e= $pb<=$p1 ? 1.0 : ($p1-$pa)/$ppu;
783 o_path_point(psu_coords(\@ends,0,-$allwidth));
784 o_path_point(psu_coords(\@ends,0,$allwidth));
785 o_path_point(psu_coords(\@ends,$e,$allwidth));
786 o_path_point(psu_coords(\@ends,$e,-$allwidth));
787 o(" closepath clip\n");
788 foreach $side qw(-1 1) {
790 o_line(psu_coords(\@ends,0,$side*$railctr),
791 psu_coords(\@ends,1.5,$side*$railctr),
796 o_line(psu_coords(\@ends,$sleeperctr,-$sleeperend),
797 psu_coords(\@ends,$sleeperctr,+$sleeperend),
802 foreach $side qw(-1 1) {
803 o_line(psu_coords(\@ends,0,$side*$allwidth),
804 psu_coords(\@ends,1.5,$side*$allwidth),
806 for ($tick=0; $tick<1.5; $tick+=$tickpitch/$psu_ulen) {
807 o_line(psu_coords(\@ends,$tick,$side*$allwidth),
808 psu_coords(\@ends,$tick,$side*$tickend),
818 my ($to, $ctr,$from, $radius,$delta) = @_;
819 # does parametric_segment to draw an arc centred on $ctr
820 # ($ctr->{A} ignored)
821 # from $from with radius $radius (this must be consistent!)
822 # and directionally-subtending an angle $delta.
823 # sets $to->... to be the other end, and returns $to
825 $to->{A}= $beta= $from->{A} + $delta;
826 $to->{X}= $ctr->{X} - $radius * sin($beta);
827 $to->{Y}= $ctr->{Y} + $radius * cos($beta);
828 return if abs($delta*$radius) < 1e-9;
829 parametric_segment(0.0,1.0, abs($radius*$delta), $radius, sub {
830 my ($beta) = $from->{A} + $delta * $param;
831 return { X => $ctr->{X} - $radius * sin($beta),
832 Y => $ctr->{Y} + $radius * cos($beta),
837 # joins_xxx all take $results, $from, $to, $minradius
838 # where $results->[]{Path}{K} etc. and $results->[]{SolKinds}[]
840 sub joins_twoarcs ($$$$) {
841 my ($results, $from,$to,$minradius) = @_;
842 # two circular arcs of equal maximum possible radius
843 # algorithm courtesy of Simon Tatham (`Railway problem',
844 # pers.comm. to ijackson@chiark 23.1.2004)
845 my ($sigma,$distfact, $theta,$phi, $a,$b,$c,$d, $m,$r, $radius);
846 my ($cvec,$cfrom,$cto,$midpt, $delta1,$delta2, $path,$reverse);
847 $sigma= ev_bearing($from,$to);
848 $distfact= v_dist($from,$to);
849 $theta= 0.5 * $pi - ($from->{A} - $sigma);
850 $phi= 0.5 * $pi - ($to->{A} + $pi - $sigma);
851 $a= 2 * (1 + cos($theta - $phi));
852 $b= 2 * (cos($theta) - cos($phi));
854 $d= sqrt($b*$b - 4*$a*$c);
855 o("% twoarcs theta=".ang2deg($theta)." phi=".ang2deg($phi).
856 " ${a}r^2 + ${b}r + ${c} = 0\n");
857 foreach $m (qw(-1 1)) {
859 o("% twoarcs $m insoluble\n");
862 $r= -0.5 * (-$b + $m*$d) / $a;
863 $radius= -$r * $distfact;
864 o("% twoarcs $m radius $radius ");
865 if (abs($radius) < $minradius) { o("too-small\n"); next; }
866 $cfrom= ev_compose({}, $from, { X=>0, Y=>-$radius, A=>-0.5*$pi });
867 $cto= ev_compose({}, $to, { X=>0, Y=> $radius, A=> 0.5*$pi });
868 $midpt= ev_lincomb({}, $cfrom, $cto, 0.5);
869 $reverse= signum($r);
874 $delta1= ev_bearing($cfrom, $midpt) - $cfrom->{A};
875 $delta2= ev_bearing($cto, $midpt) - $cto->{A};
876 o("ok deltas ".ang2deg($delta1)." ".ang2deg($delta2)."\n");
882 $path= [{ T=>Arc, F=>$from, C=>$cfrom, R=> $radius, D=>$delta1 },
883 { T=>Arc, F=>$to, C=>$cto, R=>-$radius, D=>$delta2 }];
884 push @$results, { Path => $path,
885 SolKinds => [ 'twoarcs', 'cross' ] };
889 sub joins_arcsline ($$$$) {
890 my ($results, $from,$to,$minradius) = @_;
891 # two circular arcs of specified radius
892 # with an intervening straight
893 my ($lr,$inv, $c,$d,$alpha,$t,$k,$l,$rpmsina,$rcosa,$linelen, $path);
894 if ($minradius<=1e-6) { o("% arcsline no-radius\n"); return; }
895 foreach $lr (qw(-1 +1)) {
896 foreach $inv (qw(-1 +1)) {
897 $c=ev_compose({},$from,{X=>0,Y=>-$lr*$minradius, A=>0 });
898 $d=ev_compose({},$to,{X=>0, Y=>-$inv*$lr*$minradius, A=>$pi });
900 o("% arcsline $lr $inv t=$t ");
901 if ($t < 1e-6) { o("concentric"); next; }
902 $c->{A}= $d->{A}= ev_bearing($c,$d);
903 o("bearing ".ang2deg($c->{A}));
906 $k= ev_compose({}, $c, { X=>0, Y=>$lr*$minradius, A=>0 });
907 $l= ev_compose({}, $d, { X=>0, Y=>$lr*$minradius, A=>0 });
910 my ($cosalpha) = 2.0 * $minradius / $t;
911 if ($cosalpha > (1.0 - 1e-6)) { o(" too-close\n"); next; }
912 $alpha= acos($cosalpha);
913 $rpmsina= $lr * $minradius * sin($alpha);
914 $rcosa= $minradius * $cosalpha;
915 $k= ev_compose({}, $c, { X=>$rcosa, Y=>$rpmsina, A=>0 });
916 $l= ev_compose({}, $d, { X=>-$rcosa, Y=>-$rpmsina, A=>0 });
917 $k->{A}= $l->{A}= ev_bearing($k,$l);
918 o(" alpha=".ang2deg($alpha)." kl^=".ang2deg($k->{A})."\n");
919 $linelen= v_dist($k,$l);
921 $path= [{ T => Arc, F => $from, C => $c,
923 D => -$lr * a_normalise
924 ($lr * ($from->{A} - $k->{A}), 0) },
925 { T => Line, A => $k, B => $l, L => $linelen },
926 { T => Arc, F => $l, C => $d,
927 R => $inv*$lr*$minradius,
928 D => -$lr*$inv * a_normalise
929 (-$lr*$inv * ($to->{A} - $l->{A}), 0) }];
932 SolKinds => [ 'arcsline', ($inv<0 ? 'cross' : 'loop') ] };
937 sub joins_arcline ($$$$) {
938 my ($results, $from,$to,$minradius) = @_;
939 # one circular arc and a straight line
940 my ($swap,$echoice,$path, $ap,$bp,$av,$bv, $e,$f, $ae,$af,$afae);
941 my ($dak,$ak,$kj,$k,$j,$aja,$jl,$l,$jc,$lc,$c,$rj,$rb);
942 foreach $swap (qw(-1 +1)) {
943 foreach $echoice (qw(0 1)) {
944 $ap= $from; $bp= { %$to }; $bp->{A} += $pi;
945 ($ap,$bp)= ($bp,$ap) if $swap<0;
946 $av= ev_byang({}, $ap->{A});
947 $bv= ev_byang({}, $bp->{A});
948 $e= ev_byang({}, 0.5 * ($ap->{A} + $bp->{A} + $echoice * $pi));
949 $f= v_rotateright($e);
950 o("% arcline $swap $echoice e ".loc2dbg($e)."\n");
951 $ae= v_dotproduct($av,$e);
952 $af= v_dotproduct($av,$f);
953 o("% arcline $swap $echoice a.e=$ae a.f=$af ");
954 if (abs($ae) < 1e-6) { o(" singular\n"); next; }
956 o("a.f/a.e=$afae\n");
957 $dak= v_dotproduct(v_subtract($ap,$bp), $e);
958 $ak= v_scalarmult($dak, $e);
959 $kj= v_scalarmult($dak * $afae, $f);
962 $aja= v_dotproduct(v_subtract($ap,$j), $av);
963 o("% arcline $swap $echoice d_ak=$dak aj.a=$aja ");
964 if ($aja < 0) { o(" backwards aj\n"); next; }
965 $jl= v_scalarmult(0.5, v_subtract($j, $bp));
966 $lc= v_scalarmult(-v_dotproduct($jl, $f) * $afae, $e);
969 $rj= v_dotproduct(v_subtract($j,$c), v_rotateright($av));
970 $rb= v_dotproduct(v_subtract($c,$bp), v_rotateright($bv));
971 o("r_j=$rj r_b=$rb ");
972 if ($rj * $rb < 0) { o(" backwards b\n"); next; }
973 if (abs($rj) < $minradius) { o(" too-small\n"); next; }
977 $path= [{ T => Line, A => $ap, B => $j, L => $aja },
978 { T => Arc, F => $j, C => $c, R => $rj,
979 D => -signum($rj) * a_normalise
980 (-signum($rj) * ($bp->{A} + $pi - $j->{A}), 0) }];
981 $path= [ reverse @$path ] if $swap<0;
982 push @$results, { Path => $path, SolKinds => [ 'arcline' ] };
988 my ($from,$to,$minradius);
989 my (@results,$result);
990 my ($path,$segment,$bestpath,$len,$scores,$bestscores,@bends,$skl);
991 my ($crit,$cs,$i,$cmp);
992 $from= can(\&cva_idex);
993 $to= can(\&cva_idex);
994 $minradius= can(\&cva_len);
995 o("% join ".loc2dbg($from)."..".loc2dbg($to)." $minradius\n");
996 joins_twoarcs(\@results, $from,$to,$minradius);
997 joins_arcsline(\@results, $from,$to,$minradius);
998 joins_arcline(\@results, $from,$to,$minradius);
999 foreach $result (@results) {
1000 $path= $result->{Path};
1001 $skl= $result->{SolKinds};
1002 o("% possible path @$skl $path\n");
1005 foreach $segment (@$path) {
1006 if ($segment->{T} eq Arc) {
1007 o("% Arc C ".loc2dbg($segment->{C}).
1008 " R $segment->{R} D ".ang2deg($segment->{D})."\n");
1009 $len += abs($segment->{R} * $segment->{D});
1010 push @bends, -abs($segment->{R}) * $segment->{D}; # right +ve
1011 } elsif ($segment->{T} eq Line) {
1012 o("% Line A ".loc2dbg($segment->{A}).
1013 " B ".loc2dbg($segment->{A})." L $segment->{L}\n");
1014 $len += abs($segment->{L});
1016 die "unknown segment $segment->{T}";
1019 o("% length $len bends @bends.\n");
1021 foreach $crit (@al, 'short') {
1022 if ($crit eq 'long') { $cs= $len; }
1023 elsif ($crit eq 'short') { $cs= -$len; }
1024 elsif ($crit =~ m/^(begin|end|)(left|right)$/) {
1025 if ($1 eq 'begin') { $cs= $bends[0]; }
1026 elsif ($1 eq 'end') { $cs= $bends[$#bends]; }
1027 else { $cs=0; map { $cs += $_ } @bends; }
1028 $cs= -$cs if $2 eq 'left';
1029 } elsif ($crit =~ m/^(\!?)(twoarcs|arcs?line|cross|loop)$/) {
1030 $cs= !!(grep { $2 eq $_ } @$skl) != ($1 eq '!');
1032 die "unknown sort criterion $crit";
1036 o("% scores @$scores\n");
1037 if (defined $bestpath) {
1038 for ($i=0,$cmp=0; !$cmp && $i<@$scores; $i++) {
1039 $cmp= $scores->[$i] <=> $bestscores->[$i];
1044 $bestscores= $scores;
1046 die "no solution" unless defined $bestpath;
1047 o("% chose path $bestpath @al\n");
1049 foreach $segment (@$bestpath) {
1050 if ($segment->{T} eq 'Arc') {
1051 arc({}, $segment->{C},$segment->{F},$segment->{R},$segment->{D});
1052 } elsif ($segment->{T} eq 'Line') {
1053 line($segment->{A}, $segment->{B}, $segment->{L});
1055 die "unknown segment";
1061 my ($from,$to,$len) = @_;
1063 ($from,$to,$len) = ($to,$from,-$len);
1065 parametric_segment(0.0, 1.0, $len + 1e-6, undef, sub {
1066 ev_lincomb({}, $from, $to, $param);
1071 my ($from,$to,$radius,$len,$upto,$ctr,$beta,$ang,$how,$sign_r);
1072 $from= can(\&cva_idex);
1073 $to= can(\&cva_idnew);
1074 printf DEBUG "from $from->{X} $from->{Y} $from->{A}\n";
1075 $how= can(cvam_enum(qw(len upto ang uptoang parallel)));
1076 if ($how eq 'len') { $len= can(\&cva_len); }
1077 elsif ($how =~ m/ang$/) { $ang= can(\&cva_ang); }
1078 elsif ($how eq 'parallel' || $how eq 'upto') { $upto= can(\&cva_idex); }
1079 $radius= cano(\&cva_len, 'Inf'); # +ve is right hand bend
1080 if ($radius eq 'Inf') {
1081 # print DEBUG "extend inf $len\n";
1082 if ($how eq 'upto') {
1083 $len= ($upto->{X} - $from->{X}) * cos($from->{A})
1084 + ($upto->{Y} - $from->{Y}) * sin($from->{A});
1085 } elsif ($how eq 'len') {
1087 die "len of straight spec by angle";
1089 printf DEBUG "len $len\n";
1090 $to->{X}= $from->{X} + $len * cos($from->{A});
1091 $to->{Y}= $from->{Y} + $len * sin($from->{A});
1092 $to->{A}= $from->{A};
1093 line($from,$to,$len);
1095 my ($sign_r, $sign_ang, $ctr, $beta_interval, $beta, $delta);
1096 print DEBUG "radius >$radius<\n";
1097 $radius *= $ctx->{Trans}{R};
1098 $sign_r= signum($radius);
1100 $ctr->{X}= $from->{X} + $radius * sin($from->{A});
1101 $ctr->{Y}= $from->{Y} - $radius * cos($from->{A});
1102 if ($how eq 'upto') {
1103 $beta= atan2(-$sign_r * ($upto->{X} - $ctr->{X}),
1104 $sign_r * ($upto->{Y} - $ctr->{Y}));
1105 $beta_interval= 1.0;
1106 } elsif ($how eq 'parallel') {
1108 $beta_interval= 1.0;
1109 } elsif ($how eq 'uptoang') {
1110 $beta= input_absang($ang);
1111 $beta_interval= 2.0;
1112 } elsif ($how eq 'len') {
1113 $sign_ang= signum($len);
1114 $beta= $from->{A} - $sign_r * $len / abs($radius);
1115 $beta_interval= 2.0;
1117 $sign_ang= signum($ang);
1118 $beta= $from->{A} - $sign_r * $ang;
1119 $beta_interval= 2.0;
1121 printf DEBUG "ctr->{Y}=$ctr->{Y} radius=$radius beta=$beta\n";
1122 $beta += $sign_ang * $sign_r * 4.0 * $pi;
1124 $delta= $beta - $from->{A};
1125 last if $sign_ang * $sign_r * $delta <= 0;
1126 $beta -= $sign_ang * $sign_r * $beta_interval * $pi;
1128 printf DEBUG "ctr->{Y}=$ctr->{Y} radius=$radius beta=$beta\n";
1129 arc($to, ,$ctr,$from, $radius,$delta);
1131 printf DEBUG "to $to->{X} $to->{Y} $to->{A}\n";
1136 return "$loc->{X} $loc->{Y} ".ang2deg($loc->{A});
1139 return $_[0] * 180 / $pi;
1141 sub input_absang ($) {
1142 return $_[0] * $ctx->{Trans}{R} + $ctx->{Trans}{A};
1144 sub input_abscoords ($$) {
1146 ($in->{X}, $in->{Y}) = @_;
1148 $out= ev_compose({}, $ctx->{Trans}, $in);
1149 return ($out->{X}, $out->{Y});
1153 my ($ctx_save) = @_;
1155 Trans => { X => 0.0, Y => 0.0, A => 0.0, R => 1.0 },
1157 DrawMap => sub { $_[0]; },
1161 if (defined $ctx_save) {
1162 %{ $ctx->{Layer} }= %{ $ctx_save->{Layer} };
1163 $ctx->{Parent}= $ctx_save;
1170 sub cmd_defobj { cmd__defobj(0); }
1171 sub cmd_defpart { cmd__defobj(1); }
1172 sub cmd__defobj ($) {
1175 $id= can(\&cva_idstr);
1176 die "nested defobj" if $defobj_save;
1177 die "repeated defobj" if exists $objs{$id};
1179 $defobj_ispart= $ispart;
1180 newctx($defobj_save);
1181 $ctx->{CmdLog}= [ ];
1182 $ctx->{InDefObj}= $id;
1183 $ctx->{Draw}= $defobj_save->{Draw}.'X';
1184 $ctx->{DrawMap}= sub { ''; };
1185 $ctx->{Layer}= { Level => 5, Kind => '' };
1190 $id= $ctx->{InDefObj};
1191 die "unmatched enddef" unless defined $id;
1192 foreach $bit (qw(CmdLog Loc)) {
1193 $objs{$id}{$bit}= $ctx->{$bit};
1195 $objs{$id}{Part}= $defobj_ispart;
1197 $defobj_save= undef;
1198 $defobj_ispart= undef;
1201 sub cmd__runobj ($) {
1205 dv("cmd__runobj $obj_id ",'$ctx',$ctx);
1206 foreach $c (@{ $objs{$obj_id}{CmdLog} }) {
1208 next if $al[0] eq 'enddef';
1213 sub cva_subsegspec ($) {
1215 die "invalid subsegment spec" unless
1216 $sp =~ m,^(\-?)([0-9A-Za-z_]*)(?:/(?:([A-Za-z_]+)(\d+))?)?$,;
1217 my ($sign,$segname,$movfeat,$movconf)=($1,$2,$3,$4);
1219 if (!exists $ctx->{SegName}) {
1225 $ctx->{SegName} =~ m/^\-?/ or die;
1227 $segname= $'.$segname;
1229 for ($map_ctx= $ctx;
1231 $map_ctx= $map_ctx->{Parent}) {
1232 if (defined $movfeat &&
1233 exists $map_ctx->{SegMapNM}{"$segname/$movfeat"}) {
1234 $movfeat= $map_ctx->{SegMapNM}{"$segname/$movfeat"};
1236 if (exists $map_ctx->{SegMapN}{$segname}) {
1237 $map_ctx->{SegMapN}{$segname} =~ m/^\-?/ or die;
1245 return $sign.$segname.'/'.
1246 (defined $movfeat ? sprintf "%s%d", $movfeat, $movconf : '');
1251 $ctx->{SavedSegment}= pop @segments
1252 unless exists $ctx->{SavedSegment};
1255 $csss= can(\&cva_subsegspec);
1256 $length= can(\&cva_len);
1257 push @segments, $csss, $length;
1259 $csss= can(\&cva_subsegspec);
1260 push @segments, $csss;
1265 $sp =~ m,^\w+(?:/[a-zA-Z_]+)?$,
1266 or die "invalid (sub)segment mapping S \`$sp'";
1272 $sp =~ m,^\-?\w+$, or die "invalid segment mapping N' \`$sp'";
1278 $sp =~ m,^[a-zA-Z_]+$, or die "invalid segment mapping M' \`$sp'";
1285 $s= can(\&cva_segmap_s);
1287 $ctx->{SegMapNM}{$s}= can(\&cva_segmap_m);
1289 $ctx->{SegMapN}{$s}= can(\&cva_segmap_n);
1294 sub layer_draw ($$) {
1299 } elsif ($k eq 's') {
1301 } elsif ($k eq 'l') {
1306 foreach $eo (@eopts) {
1307 #print STDERR "$. layer $k$l eo $eo re $eo->{GlobRe} then $eo->{DrawMods} now $r\n";
1308 next unless $k =~ m/^$eo->{GlobRe}$/;
1309 #print STDERR "$. layer $k$l eo re $eo->{GlobRe} match\n";
1310 next unless &{ $eo->{LayerCheck} }($l);
1311 #print STDERR "$. layer $k$l eo re $eo->{GlobRe} checked\n";
1312 foreach $cc (split //, $eo->{DrawMods}) {
1314 $r .= $cc if $cc =~ m/[A-Z]/;
1317 #print STDERR "layer $k$l gives $r (before map)\n";
1318 $r= &{ $ctx->{DrawMap} }($r);
1324 $kl= can(\&cva_identity);
1325 $kl =~ m/^([A-Za-z_]*)(\d*|\=|\*)$/ or die "invalid layer spec";
1327 $l= $output_layer if $l eq '*';
1328 $l= $ctx->{Layer}{Level} if $l =~ m/^\=?$/;
1329 $ctx->{Layer}{Kind}= $k;
1330 $ctx->{Layer}{Level}= $l;
1331 $ctx->{Draw}= layer_draw($k,$l);
1334 sub cmd_part { cmd__obj(Part); }
1335 sub cmd_obj { cmd__obj(1); }
1336 sub cmd_objflip { cmd__obj(-1); }
1340 my ($obj_id, $ctx_save, $pfx, $actual, $formal_id, $formal, $formcv);
1341 my ($part_name, $ctx_inobj, $obj, $id, $newid, $newpt);
1343 $part_name= can(\&cva_idstr);
1344 $how= (@al && $al[0] =~ s/^\^//) ? -1 : +1;
1346 $obj_id= can(\&cva_idstr);
1347 if (defined $part_name) {
1348 $formal_id= can(\&cva_idstr);
1349 $actual= cano(\&cva_idex, undef);
1350 if (!defined $actual) {
1351 $actual= cva_idex("${part_name}_${formal_id}");
1354 $actual= can(\&cva_idex);
1355 $formal_id= can(\&cva_idstr);
1357 $obj= $objs{$obj_id};
1358 dv("cmd__obj ",'$obj',$obj);
1359 die "unknown obj $obj_id" unless $obj;
1360 $formal= $obj->{Loc}{$formal_id};
1361 die "unknown formal $formal_id" unless $formal;
1364 $how *= $ctx_save->{Trans}{R};
1365 $ctx->{Trans}{R}= $how;
1366 $ctx->{Trans}{A}= $actual->{A} - $formal->{A}/$how;
1367 $formcv= ev_compose({}, $ctx->{Trans},$formal);
1368 $ctx->{Trans}{X}= $actual->{X} - $formcv->{X};
1369 $ctx->{Trans}{Y}= $actual->{Y} - $formcv->{Y};
1370 if (defined $part_name) {
1371 $ctx->{InRunObj}= $ctx_save->{InRunObj}."${part_name}:";
1373 $ctx->{InRunObj}= $ctx_save->{InRunObj}."${obj_id}::";
1375 if ($segments[0] =~ m,(.*[^-]+)/,) {
1376 $ctx->{SegName}= $1;
1378 $ctx->{DrawMap}= sub {
1380 $i= &{ $ctx_save->{DrawMap} }($i);
1390 $ctx->{Draw}= &{ $ctx->{DrawMap} }($ctx_save->{Draw});
1391 cmd__runobj($obj_id);
1392 if (defined $part_name) {
1393 $pfx= $part_name.'_';
1395 if (@al && $al[0] eq '=') {
1396 $pfx= ''; shift @al;
1398 $pfx= cano(\&cva_idstr,undef);
1401 if (exists $ctx->{SavedSegment}) {
1402 @segments= ($ctx->{SavedSegment});
1407 foreach $id (keys %{ $ctx_inobj->{Loc} }) {
1408 next if $id eq $formal_id;
1410 next if exists $ctx_save->{Loc}{$newid};
1411 $newpt= cva_idnew($newid);
1412 %$newpt= %{ $ctx_inobj->{Loc}{$id} };
1415 if (defined $part_name) {
1416 my ($formalr_id, $actualr_id, $formalr, $actualr);
1418 die "part results come in pairs\n" unless @al>=2;
1419 ($formalr_id, $actualr_id, @al) = @al;
1420 if ($actualr_id =~ s/^\-//) {
1421 $formalr_id= "-$formalr_id";
1422 $formalr_id =~ s/^\-\-//;
1425 local ($ctx) = $ctx_inobj;
1426 $formalr= cva_idex($formalr_id);
1428 $actualr= cva_idnew($actualr_id);
1429 %$actualr= %$formalr;
1436 dv("cmd__do $ctx @al ",'$ctx',$ctx);
1437 $cmd= can(\&cva_cmd);
1438 my ($lm,$id,$loc,$io,$ad,$draw,$thendrawre);
1439 $io= defined $ctx->{InDefObj} ? "$ctx->{InDefObj}!" : $ctx->{InRunObj};
1440 o("%L cmd $io $cmd @al\n");
1441 $ctx->{LocsMade}= [ ];
1446 die "too many args" if @al;
1447 foreach $lm (@{ $ctx->{LocsMade} }) {
1449 $loc= $ctx->{Loc}{$id};
1450 $loc->{A} += $pi if $lm->{Neg};
1451 $ad= ang2deg($loc->{A});
1452 ol("%L point $io$id ".loc2dbg($loc)." ($lm->{Neg})\n");
1453 $draw= layer_draw($loc->{LayerKind}, $ctx->{Layer}{Level});
1454 if ($draw =~ m/[LM]/) {
1456 " $loc->{X} $loc->{Y} translate $ad rotate\n");
1457 if ($draw =~ m/M/) {
1458 ol(" 0 $allwidthmin newpath moveto\n".
1459 " 0 -$allwidthmin lineto\n".
1460 " $lmu_marklw setlinewidth stroke\n");
1462 if ($draw =~ m/L/) {
1463 ol(" /s ($id) def\n".
1465 " /sx5 s stringwidth pop\n".
1466 " 0.5 mul $lmu_txtboxpadx add def\n".
1467 " -90 rotate 0 $lmu_txtboxoff translate newpath\n".
1468 " sx5 neg 0 moveto\n".
1469 " sx5 neg $lmu_txtboxh lineto\n".
1470 " sx5 $lmu_txtboxh lineto\n".
1471 " sx5 0 lineto closepath\n".
1472 " gsave 1 setgray fill grestore\n".
1473 " $lmu_txtboxlw setlinewidth stroke\n".
1474 " sx5 neg $lmu_txtboxpadx add $lmu_txtboxtxty\n".
1475 " moveto s show\n");
1482 sub cmd_showlibrary {
1483 my ($obj_id, $y, $x, $ctx_save, $width, $height);
1484 my ($max_x, $min_x, $max_y, $min_y, $nxty, $obj, $loc, $pat, $got, $glob);
1486 $x=$olu_left; $y=$olu_bottom; undef $nxty;
1488 foreach $obj_id (sort keys %objs) {
1490 foreach $glob (@al) {
1492 $got= !($pat =~ s/^\!//);
1493 die "bad pat" if $pat =~ m/[^0-9a-zA-Z_*?]/;
1494 $pat =~ s/\*/\.*/g; $pat =~ s/\?/./g;
1495 last if $obj_id =~ m/^$pat$/;
1499 $obj= $objs{$obj_id};
1500 next unless $obj->{Part};
1501 ($min_x, $max_x, $min_y, $max_y) = bbox($obj->{Loc});
1505 $width= $max_x - $min_x;
1506 $height= $max_y - $min_y;
1507 if ($width < $height) {
1508 $ctx->{Trans}{A}= 0;
1509 $ctx->{Trans}{X}= $x - $min_x;
1510 $ctx->{Trans}{Y}= $y - $min_y + $olu_textheight;
1512 ($width,$height)=($height,$width);
1513 $ctx->{Trans}{A}= 0.5 * $pi;
1514 $ctx->{Trans}{X}= $x + $max_y;
1515 $ctx->{Trans}{Y}= $y - $min_x + $olu_textheight;
1517 $adj= length($obj_id) * $olu_textallowperc - $width;
1520 $ctx->{Trans}{X} += 0.5 * $adj;
1521 if ($x + $width > $olu_right && defined $nxty) {
1525 } elsif ($y + $height > $olu_top && $y > $olu_bottom) {
1527 $x= $olu_left; $y= $olu_bottom;
1534 $ctx->{InRunObj}= $ctx_save->{InRunObj}."${obj_id}//";
1535 $ctx->{Draw}= $ctx_save->{Draw};
1536 cmd__runobj($obj_id);
1538 " /s ($obj_id) def\n".
1540 ($x + 0.5*$width)." ".($y - $olu_textheight)." moveto\n".
1541 " s stringwidth pop -0.5 mul 0 rmoveto\n".
1542 " s show grestore\n");
1543 $x += $width + $olu_gap_x;
1544 upd_max(\$nxty, $y + $height + $olu_gap_y + $olu_textheight);
1555 " /lf /Courier-New findfont $lmu_marktpt scalefont def\n".
1556 " $ps_page_shift 0 translate 90 rotate\n");
1558 if ($page_x || $page_y) {
1559 o(" /Courier-New findfont 15 scalefont setfont\n".
1560 " 30 30 moveto (${page_x}x${page_y}) show\n");
1563 o(" -$ps_page_xmul $page_x mul -$ps_page_ymul $page_y mul translate\n".
1564 " $ptscale $ptscale scale\n");
1568 open DEBUG, ($debug ? ">&2" : ">/dev/null") or die $!;
1571 select(DEBUG); $|=1;
1572 select(STDOUT); $|=1;
1576 $ctx->{SegName}= '';
1583 chomp; s/^\s+//; s/\s+$//;
1584 @al= split /\s+/, $_;
1586 print DEBUG "=== @al\n";
1587 last if $al[0] eq 'eof';
1588 push @{ $ctx->{CmdLog} }, [ @al ] if exists $ctx->{CmdLog};
1593 my ($min_x, $max_x, $min_y, $max_y) = bbox($ctx->{Loc});
1595 if (defined $min_x) {
1596 $bboxstr= sprintf("width %.2d (%.2d..%2.d)\n".
1597 "height %.2d (%.2d..%2.d)\n",
1598 $max_x - $min_x, $min_x, $max_x,
1599 $max_y - $min_y, $min_y, $max_y);
1601 $bboxstr= "no locs, no bbox\n";
1603 if (!$quiet) { print STDERR $bboxstr; }
1604 $bboxstr =~ s/^/\%L bbox /mg;
1605 o($bboxstr) or die $!;
1608 my ($tick_x, $tick_y, $ticklen);
1610 printf(" gsave 0.5 setgray 0.33 setlinewidth\n".
1612 " newpath moveto\n".
1613 " -%d 0 rmoveto %d 0 rlineto\n".
1614 " -%d -%d rmoveto 0 %d rlineto stroke\n".
1616 $ticklen, $ticklen*2, $ticklen, $ticklen, $ticklen*2)
1618 for ($tick_x= $min_x; $tick_x < $max_x; $tick_x += 150) {
1619 for ($tick_y= $min_y; $tick_y < $max_y; $tick_y += 150) {
1620 printf(" %f %f regmark\n",
1625 printf(" grestore\n")