18 our $output_layer= '*';
20 our $subsegmovfeatpos='f';
21 our $subsegcmapangscale;
23 our $ps_page_shift= 615;
24 our $ps_page_xmul= 765.354;
25 our $ps_page_ymul= 538.583;
29 our @ident_strings= ();
33 our $drawers= 'arqscldmnog';
34 our %chdraw_emap= qw(A ARScgd
50 while (@ARGV && $ARGV[0] =~ m/^\-/) {
51 last if $ARGV[0] eq '-';
56 if (s/^D(\d+)//) { $debug= $1; }
57 elsif (s/^D//) { $debug++; }
58 elsif (s/^q//) { $quiet=1; }
59 elsif (s/^l(\d+|\*)//) { $output_layer=$1; }
60 elsif (s/^S([0-9.]+)$//) { $scale= $1 * 1.0; }
61 elsif (s/^P(\d+)x(\d+)$//) { $page_x= $1; $page_y= $2; }
62 elsif (s/^GR//) { $subsegcmapreq=1; }
63 elsif (s/^GP(\d+|f)$//) { $subsegmovfeatpos=$1; }
64 elsif (s/^GL(.*)$//) {
66 my ($sscmf, $datum, $csss, $angbits);
68 $sscmf= new IO::File $sscmfn, 'r'
69 or die "$sscmfn: cannot open: $!\n";
71 $!=0; $_= <$sscmf>; die $! unless defined $_;
74 m,^C\s+(\w*/(?:[A-Za-z_]+)?)\s+(0x[0-9a-f]+)\s+(\d+)\s*$,
75 or die "$sscmfn:$.: syntax error in subseg cmap\n";
76 ($csss,$datum,$angbits)= ($1,$2,$3);
77 if (!defined $subsegcmapangscale) {
78 $subsegcmapangscale= 1<<$angbits;
80 die "angbits varies" if $subsegcmapangscale != 1<<$angbits;
84 die "sorry, cannot put any movfeatpos or segment in red";
86 $subsegcmap{$csss}= sprintf("%.6f %.6f",
87 (($datum >> 8) & 0xff)/255.0,
88 (($datum >> 16) & 0xff)/255.0);
90 $sscmf->error and die "$sscmfn: error reading: $!\n";
93 ((?:[a-z]|\*|\?|\[[a-z][-a-z]*\])*?)
94 (\~?) (\d*) (\=*|\-+|\++) (\d*|\*)
96 my ($ee,$g,$n,$d,$c,$v,$cc) = ($1,$2,$3,$4,$5,$6,$7);
97 my ($eo, $invert, $lfn, $ccc, $sense,$limit);
98 $g =~ s/\?/\./g; $g =~ s/\*/\.\*/g;
99 die '-[eE]GND[=]* not allowed' if $v eq '*' && length $d;
100 $d= $output_layer if !length $d;
103 $c= '=' if !length $c;
104 if (length $v && $v ne '*') {
105 die '-[eE]GN[D]CCV not allowed' if length $c > 1;
108 if ($c =~ m/^[-+]/) {
109 die '-[eE]GN+/-* not allowed' if $v eq '*';
110 $sense= ($&.'1') + 0;
111 $limit= ($sense * $d) + length($c) - 1;
113 ($output_layer eq '*' ? $d
114 : $_[0]) * $sense >= $limit
117 } elsif ($v eq '*') {
118 $lfn= sub { !$invert; };
120 $limit= length($c) - 1;
123 ($output_layer eq '*' ? 1
124 : abs($_[0] - $d) <= $limit)
128 #print STDERR "output layer $output_layer; asking re $_[0] rel $d lim $limit invert $invert result $lfn_result\n";
133 foreach $c (split //, $cc) {
135 die "bad -e option $c" unless defined $chdraw_emap{$c};
136 $ccc .= $chdraw_emap{$c};
138 die "bad -E option $c" unless $c =~ m/[$drawers]/i;
143 $eo->{LayerCheck}= $lfn;
144 $eo->{DrawMods}= $ccc;
145 #print STDERR "created eo $eo re $eo->{GlobRe} n=$n d=$d v=$v c=$c limit=$limit cc=$cc\n";
148 die "-S option must come right at the start and have numeric arg";
150 die "unknown option -$_";
155 our $ptscale= 72/25.4 / $scale;
158 our $psu_edgelw= 0.5;
159 our $psu_ticklw= 0.1;
160 our $psu_ticksperu= 1;
161 our $psu_ticklen= 5.0;
163 our $psu_sleeperlen= 17;
164 our $psu_sleeperlw= 15;
165 our $psu_raillw= 1.0;
166 our $psu_thinlw= 1.0;
168 $psu_subseglw{'e'}= 20.0;
169 $psu_subseglw{'m'}= 15.0;
170 $psu_subseglw{'q'}= 20.0;
173 our $lmu_marktpt= 11;
174 our $lmu_txtboxtxty= $lmu_marktpt * 0.300;
175 our $lmu_txtboxh= $lmu_marktpt * 1.100;
176 our $lmu_txtboxpadx= $lmu_marktpt * 0.335;
177 our $lmu_txtboxoff= $lmu_marklw / 2;
178 our $lmu_txtboxlw= 1;
179 our $lmu_lenlabeloffctr= -$lmu_marklw * 1.0;
180 our $lmu_lenlabeloff= $lmu_marklw * 0.5;
182 our $olu_left= 10 * $scale;
183 our $olu_right= 217 * $scale - $olu_left;
184 our $olu_bottom= 25 * $scale;
185 our $olu_top= 270 * $scale - $olu_bottom;
188 our $olu_textheight= 15;
189 our $olu_textallowperc= $lmu_marktpt * 5.0/11;
191 our $pi= atan2(0,-1);
195 return 27 unless defined $radius;
196 $radius= abs($radius);
197 return ($radius >= 450 ? 33 :
198 $radius >= 400 ? 35 :
201 sub allwidth ($) { return allwidth2($_[0]) * 0.5; }
203 our $allwidthmax= allwidth(0);
204 our $allwidthmin= allwidth(undef);
207 # $ctx->{CmdLog}= undef } not in defobj
208 # $ctx->{CmdLog}[]= [ command args ] } in defobj
209 # $ctx->{Parent}= $parent_ctx or undef
210 # $ctx->{LocsMade}[]{Id}= $id
211 # $ctx->{LocsMade}[]{Neg}= 1 or 0
212 # $ctx->{Loc}{$id}{X}
213 # $ctx->{Loc}{$id}{Y}
214 # $ctx->{Loc}{$id}{A}
215 # $ctx->{Loc}{$id}{LayerKind}
216 # $ctx->{Trans}{X} # transformation. is ev representing
217 # $ctx->{Trans}{Y} # new origin. (is applied at _input_
218 # $ctx->{Trans}{A} # not at plot-time)
219 # $ctx->{Trans}{R} # but multiply all y coords by this!
220 # $ctx->{Draw} # sequence of one or more chrs from uc $drawers
221 # # possibly including X meaning never draw
222 # # anything now (eg in defobj)
223 # $ctx->{DrawMap} # =$fn s.t.
224 # # &$fn($drawchrs_spec_by_layer_cmdline)
225 # # = $drawchrs_we_should_use_due_to_obj_etc
226 # $ctx->{SegName} # initial segment name (at start of object or file)
227 # # or nonexistent if in object in unknown segment
228 # # may have leading `-'
229 # $ctx->{SegMapN}{$s}= $o
230 # $ctx->{SegMapNM}{$s}= $o
231 # $ctx->{SavedSegment} # exists iff segment command used, is a $csss
232 # $ctx->{Layer}{Level}
233 # $ctx->{Layer}{Kind}
237 # $objs{$id}{Part} # 1 iff object is a part
239 # $eopts[]{GlobRe} # regexp for K
240 # $eopts[]{LayerCheck} # =$fn where &$fn($l) is true iff layer matches
241 # $eopts[]{DrawMods} # modifier chars for drawing
243 # @segments= ( $csss0, $dist0, $csss1, $dist1, ..., $csssn )
244 # # here each csss may have preceding `-'
246 # $subsegcmap{$csss} = "$green $blue"
247 # # $csss is canonical subseg spec; always has '/'
251 our @al; # current cmd
256 our $param; # for parametric_segment
260 # Operate on Enhanced Vectors which are a location (coordinates) and a
261 # direction at that location. Representation is a hash with members X
262 # Y and A (angle of the direction in radians, anticlockwise from
263 # East). May be absolute, or interpreted as relative, according to
266 # Each function's first argument is a hashref whose X Y A members will
267 # be created or overwritten; this hashref will be returned (so you can
268 # use it `functionally' by passing {}). The other arguments may be ev
269 # hashrefs, or other info. The results are in general undefined if
270 # one of the arguments is the same hash as the result.
272 sub ev_byang ($$;$) {
273 # ev_byang(R, ANG,[LEN])
274 # result is evec LEN (default=1.0) from origin pointing in direction ANG
275 my ($res,$ang,$len)=@_;
276 $len=1.0 unless defined $len;
277 $res->{X}= $len * cos($ang);
278 $res->{Y}= $len * sin($ang);
282 sub ev_compose ($$$) {
283 # ev_compose(SUM_R, A,B);
284 # appends B to A, result is end of new B
285 # (B's X is forwards from end of A, Y is translating left from end of A)
286 # A may have a member R, which if provided then it should be 1.0 or -1.0,
287 # and B's Y and A will be multiplied by R first (ie, we can reflect);
288 my ($sum,$a,$b) = @_;
290 $r= defined $a->{R} ? $a->{R} : 1.0;
291 $sum->{X}= $a->{X} + $b->{X} * cos($a->{A}) - $r * $b->{Y} * sin($a->{A});
292 $sum->{Y}= $a->{Y} + $r * $b->{Y} * cos($a->{A}) + $b->{X} * sin($a->{A});
293 $sum->{A}= $a->{A} + $r * $b->{A};
296 sub ev_decompose ($$$) {
297 # ev_decompose(B_R, A,SUM)
298 # computes B_R s.t. ev_compose({}, A, B_R) gives SUM
301 $r= defined $a->{R} ? $a->{R} : 1.0;
302 $brx= $sum->{X} - $a->{X};
303 $bry= $r * ($sum->{Y} - $a->{Y});
304 $b->{X}= $brx * cos($a->{A}) + $bry * sin($a->{A});
305 $b->{Y}= $bry * cos($a->{A}) - $brx * sin($a->{A});
306 $b->{A}= $r * ($sum->{A} - $a->{A});
309 sub ev_lincomb ($$$$) {
310 # ev_linkcomb(RES,A,B,P)
311 # gives P*A + (1-P)*B
312 my ($r,$a,$b,$p) = @_;
314 map { $r->{$_} = $q * $a->{$_} + $p * $b->{$_} } qw(X Y A);
317 sub a_normalise ($$) {
319 # adds or subtracts 2*$pi to/from A until it is in [ Z , Z+2*$pi >
322 $r= $z + fmod($a - $z, 2.0*$pi);
323 $r += 2*$pi if $r < $z;
326 sub ev_bearing ($$) {
328 # returns bearing of B from A
329 # value returned is in [ A->{A}, A->{A} + 2*$pi >
330 # A->{A} and B->{A} are otherwise ignored
333 $r= atan2($b->{Y} - $a->{Y},
335 $r= a_normalise($r,$a->{A});
339 sub v_rotateright ($) {
341 # returns image of A rotated 90 deg clockwise
343 return { X => $a->{Y}, Y => -$a->{X} };
345 sub v_dotproduct ($$) {
348 return $a->{X} * $b->{X} + $a->{Y} * $b->{Y};
350 sub v_scalarmult ($$) {
352 # multiplies V by scalar S and returns product
354 return { X => $s * $v->{X}, Y => $s * $v->{Y} };
358 # vector sum of all inputs
361 $r= { X => 0.0, Y => 0.0 };
362 foreach $i (@i) { $r->{X} += $i->{X}; $r->{Y} += $i->{Y}; }
365 sub v_subtract ($$) {
367 # returns vector from A to B, ie B - A
369 return { X => $b->{X} - $a->{X},
370 Y => $b->{Y} - $a->{Y} };
376 my ($x,$y) = ($v->{X}, $v->{Y});
377 return sqrt($x*$x + $y*$y);
381 # returns distance from A to B
382 return v_len(v_subtract($_[0],$_[1]));
387 $$limr= $now unless defined $$limr && $$limr <= $now;
391 $$limr= $now unless defined $$limr && $$limr >= $now;
395 my ($converter,$defaulter)=@_;
397 return &$defaulter unless @al;
399 $v= &$converter($spec);
400 dv('canf ','$spec',$spec, '$v',$v);
403 sub can ($) { my ($c)=@_; canf($c, sub { die "too few args"; }); }
404 sub cano ($$) { my ($c,$def)=@_; canf($c, sub { return $def }); }
406 sub signum ($) { return ($_[0] > 0) - ($_[0] < 0); }
410 my ($min_x, $max_x, $min_y, $max_y);
412 foreach $loc (values %$objhash) {
413 upd_min(\$min_x, $loc->{X} - abs($allwidthmax * sin($loc->{A})));
414 upd_max(\$max_x, $loc->{X} + abs($allwidthmax * sin($loc->{A})));
415 upd_min(\$min_y, $loc->{Y} - abs($allwidthmax * cos($loc->{A})));
416 upd_max(\$max_y, $loc->{Y} + abs($allwidthmax * cos($loc->{A})));
418 return ($min_x, $max_x, $min_y, $max_y);
421 our %units_len= qw(- mm mm 1 cm 10 m 1000);
422 our %units_ang= qw(- d r 1); $units_ang{'d'}= 2*$pi / 360;
424 sub cva_len ($) { my ($sp)=@_; cva_units($sp,\%units_len); }
425 sub cva_identity ($) { my ($sp)=@_; $sp; }
426 sub cva_ang ($) { my ($sp)=@_; cva_units($sp,\%units_ang); }
427 sub cva_absang ($) { input_absang(cva_ang($_[0])) }
431 $sp =~ m/^([-0-9eE.]*[0-9.])([A-Za-z]*)$/
432 or die "lexically invalid quantity";
434 $u=$ua->{'-'} unless length $u;
435 defined $ua->{$u} or die "unknown unit $u";
437 print DEBUG "cva_units($sp,)=$r ($n $u $ua->{$u})\n";
442 die "invalid id" unless $sp =~ m/^[a-z][_0-9A-Za-z]*$/;
447 my ($id,$r,$d,$k,$neg,$na,$obj_id,$vflip,$locs);
448 if ($sp =~ s/^(\^?)(\w+)\!//) {
451 die "invalid obj $obj_id in loc" unless exists $objs{$obj_id};
452 $locs= $objs{$obj_id}{Loc};
457 $neg= $sp =~ s/^\-//;
459 die "unknown $id" unless defined $locs->{$id};
462 foreach $k (sort keys %$r) { $d .= " $k=$r->{$k}"; }
463 printf DEBUG "%s\n", $d;
465 $r= { X => $r->{X}, Y => -$r->{Y}, A => -$r->{A} };
469 $na= a_normalise($na,0);
470 $r= { X => $r->{X}, Y => $r->{Y}, A => $na };
477 $neg = $sp =~ s/^\-//;
479 die "duplicate $id" if exists $ctx->{Loc}{$id};
480 $ctx->{Loc}{$id}{LayerKind}= $ctx->{Layer}{Kind};
481 push @{ $ctx->{LocsMade} }, {
485 return $ctx->{Loc}{$id};
487 sub cva_cmd ($) { return cva_idstr($_[0]); }
490 return $sp if grep { $_ eq $sp } @$el;
491 die "invalid option (permitted: @$el)";
493 sub cvam_enum { my (@e) = @_; return sub { cva__enum($_[0],\@e); }; }
497 $nl= can(\&cva_idnew);
498 $i->{X}= can(\&cva_len);
499 $i->{Y}= can(\&cva_len);
500 $i->{A}= can(\&cva_ang);
501 ev_compose($nl, $ctx->{Trans}, $i);
504 my ($from,$to,$len,$right,$turn);
505 $from= can(\&cva_idex);
506 $to= can(\&cva_idnew);
507 $len= cano(\&cva_len,0);
508 $right= cano(\&cva_len,0) * $ctx->{Trans}{R};
509 $turn= cano(\&cva_ang, 0) * $ctx->{Trans}{R};
510 my ($u)= ev_compose({}, $from, { X => $len, Y => -$right, A => 0 });
511 ev_compose($to, $u, { X => 0, Y => 0, A => $turn });
516 $pfx . ($pfx =~ m/\}$|\]$/ ? '' : '->');
520 return 'undef' if !defined $v;
521 return $v if $v !~ m/\W/ && $v =~ m/[A-Z]/ && $v =~ m/^[a-z_]/i;
522 return $v if $v =~ m/^[0-9.]+/;
523 $v =~ s/[\\\']/\\$&/g;
527 sub dv1_kind ($$$$$$$) {
528 my ($pfx,$expr,$ref,$ref_exp,$ixfmt,$ixesfn,$ixmapfn) = @_;
530 return 0 if $ref ne $ref_exp;
532 foreach $ix (&$ixesfn) {
534 my ($v)= &$ixmapfn($ix);
535 #print STDERR "dv1_kind($pfx,$expr,$ref,$ref_exp,$ixmapfn) ix=$ix v=$v\n";
536 dv1($pfx,$expr.sprintf($ixfmt,dv__evr($ix)),$v);
539 printf DEBUG "%s%s= $ixfmt\n", $pfx, $expr, ' ';
544 return 0 unless $debug;
545 my ($pfx,$expr,$v) = @_;
548 #print STDERR "dv1 >$pfx|$ref<\n";
550 printf DEBUG "%s%s= %s\n", $pfx,$expr, dv__evr($v);
552 } elsif ($ref eq 'SCALAR') {
553 dv1($pfx, ($expr =~ m/^\$/ ? "\$$expr" : '${'.$expr.'}'), $$v);
556 $expr.='->' unless $expr =~ m/\]$|\}$/;
557 return if dv1_kind($pfx,$expr,$ref,'ARRAY','[%s]',
558 sub { ($[ .. $#$v) },
559 sub { $v->[$_[0]] });
560 return if dv1_kind($pfx,$expr,$ref,'HASH','{%s}',
561 sub { sort keys %$v },
562 sub { $v->{$_[0]} });
563 printf DEBUG "%s%s is %s\n", $pfx, $expr, $ref;
575 sub o ($) { $o .= $_[0]; }
576 sub ol ($) { $ol .= $_[0]; }
578 return if $subsegcmapreq;
580 print $o, $ol, " showpage\n"
587 sub o_path_begin () {
589 $o_path_verb= 'moveto';
591 sub o_path_point ($) {
593 o(" $pt $o_path_verb\n");
594 $o_path_verb= 'lineto';
596 sub o_path_stroke ($) {
598 o(" $width setlinewidth stroke\n");
600 sub o_path_strokeonly () {
605 my ($a,$b,$width)=@_;
609 o_path_stroke($width);
612 sub current_draw () {
614 $r= $ctx->{Draw} =~ m/X/ ? '' : $ctx->{Draw};
618 sub psu_coords ($$$) {
619 my ($ends,$inunit,$across)=@_;
620 # $ends->[0]{X} etc.; $inunit 0 to 1 (but go to 1.5);
621 # $across in mm, +ve to right.
622 my (%ea_zo, $zo, $prop);
623 $ea_zo{X}=$ea_zo{Y}=0;
624 foreach $zo (qw(0 1)) {
625 $prop= $zo ? $inunit : (1.0 - $inunit);
626 $ea_zo{X} += $prop * ($ends->[$zo]{X} - $across * sin($ends->[0]{A}));
627 $ea_zo{Y} += $prop * ($ends->[$zo]{Y} + $across * cos($ends->[0]{A}));
629 # dv("psu_coords ", '$ends',$ends, '$inunit',$inunit, '$across',$across,
630 # '\\%ea_zo', \%ea_zo);
631 return $ea_zo{X}." ".$ea_zo{Y};
634 sub parametric__o_pt ($) {
636 o_path_point("$pt->{X} $pt->{Y}");
639 our $segused_incurrent;
640 our $segused_currentpt;
641 our $segmentpart_counter=0;
642 our $segused_restorecounter;
644 sub segment_used__print ($) {
646 if ($segused_incurrent > 0 && $segused_restorecounter==1) {
648 $segmentpart_counter++." ".
649 $ctx->{Layer}{Level}.$ctx->{Layer}{Kind}." ".
651 $segused_incurrent." ".
652 loc2dbg($segused_currentpt)." ".
655 $segused_incurrent= undef;
656 $segused_currentpt= undef;
659 sub segment_used__len ($$) {
661 $segused_incurrent += $used;
663 return if @segments < 3;
664 $segments[1] -= $used;
665 return if $segments[1] > 0;
667 segment_used__print($pt);
668 segment_used_begin($pt);
670 @segments= @segments[2..$#segments];
671 o("% segments @segments\n");
674 sub segment_state_save () {
675 return [ 0, $segused_incurrent, $segused_currentpt,
676 $segmentpart_counter, @segments ];
678 sub segment_state_restore ($) {
680 ($segused_restorecounter, $segused_incurrent, $segused_currentpt,
681 $segmentpart_counter, @segments) = @$r;
685 sub segment_used_begin ($) {
686 $segused_incurrent= 0;
687 $segused_currentpt= $_[0];
689 sub segment_used_middle ($$) {
691 segment_used__len($used,$pt);
693 sub segment_used_end ($$) {
695 segment_used__len($used,$pt);
696 segment_used__print($pt);
698 sub parametric_segment ($$$$$) {
699 my ($p0,$p1,$lenperp,$minradius,$calcfn) = @_;
700 # makes $param (global) go from $p0 to $p1 ($p1>$p0)
701 # $lenperp is the length of one unit p, ie the curve
702 # must have a uniform `density' in parameter space
703 # $calcfn is invoked with $param set and should return a loc
704 # (ie, ref to X =>, Y =>, A =>).
705 my ($pa,$pb,@ends,$side,$ppu,$e,$v,$tick,$draw,$allwidth);
706 return unless $ctx->{Draw} =~ m/[ARSCGQ]/;
707 $ppu= $psu_ulen/$lenperp;
708 $allwidth= allwidth($minradius);
709 my ($railctr)=($psu_gauge + $psu_raillw)*0.5;
710 my ($tickend)=($allwidth - $psu_ticklen);
711 my ($tickpitch)=($psu_ulen / $psu_ticksperu);
712 my ($sleeperctr)=($psu_ulen*0.5);
713 my ($sleeperend)=($psu_sleeperlen*0.5);
714 print DEBUG "ps $p0 $p1 $lenperp ($ppu)\n";
715 $draw= current_draw();
716 if ($draw =~ m/[QG]/) {
717 my ($pt,$going,$red,$csegbare,$movfeat,$movstroke);
718 my ($used_last,$me,$segsave);
720 $segsave= segment_state_save();
721 foreach $me ($draw =~ m/Q/ ? qw(q) : qw(e m)) {
722 segment_state_restore($segsave);
724 o("% segments @segments\n");
727 segment_used_begin($pt);
729 $movstroke= " cmapreq-stroke\n";
730 $csegbare= $segments[0];
731 $csegbare =~ s/^\-//;
732 if ($subsegcmapreq) {
733 if (!exists $subsegcmap{$csegbare}) {
734 print "$csegbare\n" or die $!;
735 $subsegcmap{$csegbare}++;
739 $csegbare =~ m,^[^/]*,;
740 #print STDERR "looking for \`$&' $me\n";
741 $movstroke= $segcmap{$&};
742 $movstroke= "% no-colour "
743 unless defined $movstroke;
744 } elsif ($draw =~ m/G/) {
745 $movfeat= $csegbare =~ s,(/\D+)(\d+)$,$1, ? $2 : 'f';
746 die "unknown subsegment colour for $csegbare\n"
747 unless exists $subsegcmap{$csegbare};
748 $red= $pt->{A} / (2*$pi);
749 $red *= $subsegcmapangscale;
750 $red += $subsegcmapangscale*2;
751 $red += $subsegcmapangscale/2
752 if $segments[0] =~ m/^\-/;
753 $red %= $subsegcmapangscale;
754 $red += $subsegcmapangscale if $me eq 'e';
755 $red= sprintf("%f", $red / 255.0);
756 $movstroke= " $red $subsegcmap{$csegbare}".
758 if ($subsegmovfeatpos ne $movfeat ||
759 ($me eq 'e' && $csegbare =~ m,^/,)) {
760 $movstroke= "% no-stroke ";
764 " $psu_subseglw{$me} setlinewidth stroke\n";
767 parametric__o_pt($pt);
772 segment_used_middle($psu_ulen,$pt);
773 parametric__o_pt($pt);
776 $used_last= $p1-($param-$ppu);
779 segment_used_end($used_last * $lenperp, $pt);
780 parametric__o_pt($pt);
787 o(" $psu_thinlw setlinewidth\n");
789 for ($param=$p0; $param<$p1; $param += $ppu) {
790 parametric__o_pt(&$calcfn);
793 parametric__o_pt(&$calcfn);
796 if ($draw =~ m/[ARS]/) { for ($pa= $p0; $pa<$p1; $pa=$pb) {
798 $param= $pa; $ends[0]= @ends ? $ends[1] : &$calcfn;
799 $param= $pb; $ends[1]= &$calcfn;
800 #print DEBUG "pa $pa $ends[0]{X} $ends[0]{Y} $ends[0]{A}\n";
801 #print DEBUG "pb $pb $ends[1]{X} $ends[1]{Y} $ends[1]{A}\n";
802 $e= $pb<=$p1 ? 1.0 : ($p1-$pa)/$ppu;
805 o_path_point(psu_coords(\@ends,0,-$allwidth));
806 o_path_point(psu_coords(\@ends,0,$allwidth));
807 o_path_point(psu_coords(\@ends,$e,$allwidth));
808 o_path_point(psu_coords(\@ends,$e,-$allwidth));
809 o(" closepath clip\n");
810 foreach $side qw(-1 1) {
812 o_line(psu_coords(\@ends,0,$side*$railctr),
813 psu_coords(\@ends,1.5,$side*$railctr),
818 o_line(psu_coords(\@ends,$sleeperctr,-$sleeperend),
819 psu_coords(\@ends,$sleeperctr,+$sleeperend),
824 foreach $side qw(-1 1) {
825 o_line(psu_coords(\@ends,0,$side*$allwidth),
826 psu_coords(\@ends,1.5,$side*$allwidth),
828 for ($tick=0; $tick<1.5; $tick+=$tickpitch/$psu_ulen) {
829 o_line(psu_coords(\@ends,$tick,$side*$allwidth),
830 psu_coords(\@ends,$tick,$side*$tickend),
838 my ($pt,$ad,$len,$off);
839 $param= ($p0+$p1)*0.5;
841 $ad= ang2deg($pt->{A});
842 $len= sprintf "%.0f", $lenperp * abs($p1-$p0);
843 $off= $draw =~ m/C/ ? $lmu_lenlabeloff : $lmu_lenlabeloffctr;
845 " $pt->{X} $pt->{Y} translate\n".
855 my ($to, $ctr,$from, $radius,$delta) = @_;
856 # does parametric_segment to draw an arc centred on $ctr
857 # ($ctr->{A} ignored)
858 # from $from with radius $radius (this must be consistent!)
859 # and directionally-subtending an angle $delta.
860 # sets $to->... to be the other end, and returns $to
862 $to->{A}= $beta= $from->{A} + $delta;
863 $to->{X}= $ctr->{X} - $radius * sin($beta);
864 $to->{Y}= $ctr->{Y} + $radius * cos($beta);
865 return if abs($delta*$radius) < 1e-9;
866 parametric_segment(0.0,1.0, abs($radius*$delta), $radius, sub {
867 my ($beta) = $from->{A} + $delta * $param;
868 return { X => $ctr->{X} - $radius * sin($beta),
869 Y => $ctr->{Y} + $radius * cos($beta),
874 # joins_xxx all take $results, $from, $to, $minradius
875 # where $results->[]{Path}{K} etc. and $results->[]{SolKinds}[]
877 sub joins_twoarcs ($$$$) {
878 my ($results, $from,$to,$minradius) = @_;
879 # two circular arcs of equal maximum possible radius
880 # algorithm courtesy of Simon Tatham (`Railway problem',
881 # pers.comm. to ijackson@chiark 23.1.2004)
882 my ($sigma,$distfact, $theta,$phi, $a,$b,$c,$d, $m,$r, $radius);
883 my ($cvec,$cfrom,$cto,$midpt, $delta1,$delta2, $path,$reverse);
884 $sigma= ev_bearing($from,$to);
885 $distfact= v_dist($from,$to);
886 $theta= 0.5 * $pi - ($from->{A} - $sigma);
887 $phi= 0.5 * $pi - ($to->{A} + $pi - $sigma);
888 $a= 2 * (1 + cos($theta - $phi));
889 $b= 2 * (cos($theta) - cos($phi));
891 $d= sqrt($b*$b - 4*$a*$c);
892 o("% twoarcs theta=".ang2deg($theta)." phi=".ang2deg($phi).
893 " ${a}r^2 + ${b}r + ${c} = 0\n");
894 foreach $m (qw(-1 1)) {
896 o("% twoarcs $m insoluble\n");
899 $r= -0.5 * (-$b + $m*$d) / $a;
900 $radius= -$r * $distfact;
901 o("% twoarcs $m radius $radius ");
902 if (abs($radius) < $minradius) { o("too-small\n"); next; }
903 $cfrom= ev_compose({}, $from, { X=>0, Y=>-$radius, A=>-0.5*$pi });
904 $cto= ev_compose({}, $to, { X=>0, Y=> $radius, A=> 0.5*$pi });
905 $midpt= ev_lincomb({}, $cfrom, $cto, 0.5);
906 $reverse= signum($r);
911 $delta1= ev_bearing($cfrom, $midpt) - $cfrom->{A};
912 $delta2= ev_bearing($cto, $midpt) - $cto->{A};
913 o("ok deltas ".ang2deg($delta1)." ".ang2deg($delta2)."\n");
919 $path= [{ T=>Arc, F=>$from, C=>$cfrom, R=> $radius, D=>$delta1 },
920 { T=>Arc, F=>$to, C=>$cto, R=>-$radius, D=>$delta2 }];
921 push @$results, { Path => $path,
922 SolKinds => [ 'twoarcs', 'cross' ] };
926 sub joins_arcsline ($$$$) {
927 my ($results, $from,$to,$minradius) = @_;
928 # two circular arcs of specified radius
929 # with an intervening straight
930 my ($lr,$inv, $c,$d,$alpha,$t,$k,$l,$rpmsina,$rcosa,$linelen, $path);
931 if ($minradius<=1e-6) { o("% arcsline no-radius\n"); return; }
932 foreach $lr (qw(-1 +1)) {
933 foreach $inv (qw(-1 +1)) {
934 $c=ev_compose({},$from,{X=>0,Y=>-$lr*$minradius, A=>0 });
935 $d=ev_compose({},$to,{X=>0, Y=>-$inv*$lr*$minradius, A=>$pi });
937 o("% arcsline $lr $inv t=$t ");
938 if ($t < 1e-6) { o("concentric"); next; }
939 $c->{A}= $d->{A}= ev_bearing($c,$d);
940 o("bearing ".ang2deg($c->{A}));
943 $k= ev_compose({}, $c, { X=>0, Y=>$lr*$minradius, A=>0 });
944 $l= ev_compose({}, $d, { X=>0, Y=>$lr*$minradius, A=>0 });
947 my ($cosalpha) = 2.0 * $minradius / $t;
948 if ($cosalpha > (1.0 - 1e-6)) { o(" too-close\n"); next; }
949 $alpha= acos($cosalpha);
950 $rpmsina= $lr * $minradius * sin($alpha);
951 $rcosa= $minradius * $cosalpha;
952 $k= ev_compose({}, $c, { X=>$rcosa, Y=>$rpmsina, A=>0 });
953 $l= ev_compose({}, $d, { X=>-$rcosa, Y=>-$rpmsina, A=>0 });
954 $k->{A}= $l->{A}= ev_bearing($k,$l);
955 o(" alpha=".ang2deg($alpha)." kl^=".ang2deg($k->{A})."\n");
956 $linelen= v_dist($k,$l);
958 $path= [{ T => Arc, F => $from, C => $c,
960 D => -$lr * a_normalise
961 ($lr * ($from->{A} - $k->{A}), 0) },
962 { T => Line, A => $k, B => $l, L => $linelen },
963 { T => Arc, F => $l, C => $d,
964 R => $inv*$lr*$minradius,
965 D => -$lr*$inv * a_normalise
966 (-$lr*$inv * ($to->{A} - $l->{A}), 0) }];
969 SolKinds => [ 'arcsline', ($inv<0 ? 'cross' : 'loop') ] };
974 sub joins_arcline ($$$$) {
975 my ($results, $from,$to,$minradius) = @_;
976 # one circular arc and a straight line
977 my ($swap,$echoice,$path, $ap,$bp,$av,$bv, $e,$f, $ae,$af,$afae);
978 my ($dak,$ak,$kj,$k,$j,$aja,$jl,$l,$jc,$lc,$c,$rj,$rb);
979 foreach $swap (qw(-1 +1)) {
980 foreach $echoice (qw(0 1)) {
981 $ap= $from; $bp= { %$to }; $bp->{A} += $pi;
982 ($ap,$bp)= ($bp,$ap) if $swap<0;
983 $av= ev_byang({}, $ap->{A});
984 $bv= ev_byang({}, $bp->{A});
985 $e= ev_byang({}, 0.5 * ($ap->{A} + $bp->{A} + $echoice * $pi));
986 $f= v_rotateright($e);
987 o("% arcline $swap $echoice e ".loc2dbg($e)."\n");
988 $ae= v_dotproduct($av,$e);
989 $af= v_dotproduct($av,$f);
990 o("% arcline $swap $echoice a.e=$ae a.f=$af ");
991 if (abs($ae) < 1e-6) { o(" singular\n"); next; }
993 o("a.f/a.e=$afae\n");
994 $dak= v_dotproduct(v_subtract($ap,$bp), $e);
995 $ak= v_scalarmult($dak, $e);
996 $kj= v_scalarmult($dak * $afae, $f);
999 $aja= v_dotproduct(v_subtract($ap,$j), $av);
1000 o("% arcline $swap $echoice d_ak=$dak aj.a=$aja ");
1001 if ($aja < 0) { o(" backwards aj\n"); next; }
1002 $jl= v_scalarmult(0.5, v_subtract($j, $bp));
1003 $lc= v_scalarmult(-v_dotproduct($jl, $f) * $afae, $e);
1006 $rj= v_dotproduct(v_subtract($j,$c), v_rotateright($av));
1007 $rb= v_dotproduct(v_subtract($c,$bp), v_rotateright($bv));
1008 o("r_j=$rj r_b=$rb ");
1009 if ($rj * $rb < 0) { o(" backwards b\n"); next; }
1010 if (abs($rj) < $minradius) { o(" too-small\n"); next; }
1014 $path= [{ T => Line, A => $ap, B => $j, L => $aja },
1015 { T => Arc, F => $j, C => $c, R => $rj,
1016 D => -signum($rj) * a_normalise
1017 (-signum($rj) * ($bp->{A} + $pi - $j->{A}), 0) }];
1018 $path= [ reverse @$path ] if $swap<0;
1019 push @$results, { Path => $path, SolKinds => [ 'arcline' ] };
1025 my ($from,$to,$minradius);
1026 my (@results,$result);
1027 my ($path,$segment,$bestpath,$len,$scores,$bestscores,@bends,$skl);
1028 my ($crit,$cs,$i,$cmp);
1029 $from= can(\&cva_idex);
1030 $to= can(\&cva_idex);
1031 $minradius= can(\&cva_len);
1032 o("% join ".loc2dbg($from)."..".loc2dbg($to)." $minradius\n");
1033 joins_twoarcs(\@results, $from,$to,$minradius);
1034 joins_arcsline(\@results, $from,$to,$minradius);
1035 joins_arcline(\@results, $from,$to,$minradius);
1036 foreach $result (@results) {
1037 $path= $result->{Path};
1038 $skl= $result->{SolKinds};
1039 o("% possible path @$skl $path\n");
1042 foreach $segment (@$path) {
1043 if ($segment->{T} eq Arc) {
1044 o("% Arc C ".loc2dbg($segment->{C}).
1045 " R $segment->{R} D ".ang2deg($segment->{D})."\n");
1046 $len += abs($segment->{R} * $segment->{D});
1047 push @bends, -abs($segment->{R}) * $segment->{D}; # right +ve
1048 } elsif ($segment->{T} eq Line) {
1049 o("% Line A ".loc2dbg($segment->{A}).
1050 " B ".loc2dbg($segment->{A})." L $segment->{L}\n");
1051 $len += abs($segment->{L});
1053 die "unknown segment $segment->{T}";
1056 o("% length $len bends @bends.\n");
1058 foreach $crit (@al, 'short') {
1059 if ($crit eq 'long') { $cs= $len; }
1060 elsif ($crit eq 'short') { $cs= -$len; }
1061 elsif ($crit =~ m/^(begin|end|)(left|right)$/) {
1062 if ($1 eq 'begin') { $cs= $bends[0]; }
1063 elsif ($1 eq 'end') { $cs= $bends[$#bends]; }
1064 else { $cs=0; map { $cs += $_ } @bends; }
1065 $cs= -$cs if $2 eq 'left';
1066 } elsif ($crit =~ m/^(\!?)(twoarcs|arcs?line|cross|loop)$/) {
1067 $cs= !!(grep { $2 eq $_ } @$skl) != ($1 eq '!');
1069 die "unknown sort criterion $crit";
1073 o("% scores @$scores\n");
1074 if (defined $bestpath) {
1075 for ($i=0,$cmp=0; !$cmp && $i<@$scores; $i++) {
1076 $cmp= $scores->[$i] <=> $bestscores->[$i];
1081 $bestscores= $scores;
1083 die "no solution" unless defined $bestpath;
1084 o("% chose path $bestpath @al\n");
1086 foreach $segment (@$bestpath) {
1087 if ($segment->{T} eq 'Arc') {
1088 arc({}, $segment->{C},$segment->{F},$segment->{R},$segment->{D});
1089 } elsif ($segment->{T} eq 'Line') {
1090 line($segment->{A}, $segment->{B}, $segment->{L});
1092 die "unknown segment";
1098 my ($from,$to,$len) = @_;
1100 ($from,$to,$len) = ($to,$from,-$len);
1102 parametric_segment(0.0, 1.0, $len + 1e-6, undef, sub {
1103 ev_lincomb({}, $from, $to, $param);
1108 my ($from,$to,$radius,$len,$upto,$ctr,$beta,$ang,$how,$sign_r);
1109 $from= can(\&cva_idex);
1110 $to= can(\&cva_idnew);
1111 printf DEBUG "from $from->{X} $from->{Y} $from->{A}\n";
1112 $how= can(cvam_enum(qw(len upto ang uptoang parallel)));
1113 if ($how eq 'len') { $len= can(\&cva_len); }
1114 elsif ($how =~ m/ang$/) { $ang= can(\&cva_ang); }
1115 elsif ($how eq 'parallel' || $how eq 'upto') { $upto= can(\&cva_idex); }
1116 $radius= cano(\&cva_len, 'Inf'); # +ve is right hand bend
1117 if ($radius eq 'Inf') {
1118 # print DEBUG "extend inf $len\n";
1119 if ($how eq 'upto') {
1120 $len= ($upto->{X} - $from->{X}) * cos($from->{A})
1121 + ($upto->{Y} - $from->{Y}) * sin($from->{A});
1122 } elsif ($how eq 'len') {
1124 die "len of straight spec by angle";
1126 printf DEBUG "len $len\n";
1127 $to->{X}= $from->{X} + $len * cos($from->{A});
1128 $to->{Y}= $from->{Y} + $len * sin($from->{A});
1129 $to->{A}= $from->{A};
1130 line($from,$to,$len);
1132 my ($sign_r, $sign_ang, $ctr, $beta_interval, $beta, $delta);
1133 print DEBUG "radius >$radius<\n";
1134 $radius *= $ctx->{Trans}{R};
1135 $sign_r= signum($radius);
1137 $ctr->{X}= $from->{X} + $radius * sin($from->{A});
1138 $ctr->{Y}= $from->{Y} - $radius * cos($from->{A});
1139 if ($how eq 'upto') {
1140 $beta= atan2(-$sign_r * ($upto->{X} - $ctr->{X}),
1141 $sign_r * ($upto->{Y} - $ctr->{Y}));
1142 $beta_interval= 1.0;
1143 } elsif ($how eq 'parallel') {
1145 $beta_interval= 1.0;
1146 } elsif ($how eq 'uptoang') {
1147 $beta= input_absang($ang);
1148 $beta_interval= 2.0;
1149 } elsif ($how eq 'len') {
1150 $sign_ang= signum($len);
1151 $beta= $from->{A} - $sign_r * $len / abs($radius);
1152 $beta_interval= 2.0;
1154 $sign_ang= signum($ang);
1155 $beta= $from->{A} - $sign_r * $ang;
1156 $beta_interval= 2.0;
1158 printf DEBUG "ctr->{Y}=$ctr->{Y} radius=$radius beta=$beta\n";
1159 $beta += $sign_ang * $sign_r * 4.0 * $pi;
1161 $delta= $beta - $from->{A};
1162 last if $sign_ang * $sign_r * $delta <= 0;
1163 $beta -= $sign_ang * $sign_r * $beta_interval * $pi;
1165 printf DEBUG "ctr->{Y}=$ctr->{Y} radius=$radius beta=$beta\n";
1166 arc($to, ,$ctr,$from, $radius,$delta);
1168 printf DEBUG "to $to->{X} $to->{Y} $to->{A}\n";
1173 return "$loc->{X} $loc->{Y} ".ang2deg($loc->{A});
1176 return $_[0] * 180 / $pi;
1178 sub input_absang ($) {
1179 return $_[0] * $ctx->{Trans}{R} + $ctx->{Trans}{A};
1181 sub input_abscoords ($$) {
1183 ($in->{X}, $in->{Y}) = @_;
1185 $out= ev_compose({}, $ctx->{Trans}, $in);
1186 return ($out->{X}, $out->{Y});
1190 my ($ctx_save) = @_;
1192 Trans => { X => 0.0, Y => 0.0, A => 0.0, R => 1.0 },
1194 DrawMap => sub { $_[0]; },
1198 if (defined $ctx_save) {
1199 %{ $ctx->{Layer} }= %{ $ctx_save->{Layer} };
1200 $ctx->{Parent}= $ctx_save;
1207 sub cmd_defobj { cmd__defobj(0); }
1208 sub cmd_defpart { cmd__defobj(1); }
1209 sub cmd__defobj ($) {
1212 $id= can(\&cva_idstr);
1213 die "nested defobj" if $defobj_save;
1214 die "repeated defobj" if exists $objs{$id};
1216 $defobj_ispart= $ispart;
1217 newctx($defobj_save);
1218 $ctx->{CmdLog}= [ ];
1219 $ctx->{InDefObj}= $id;
1220 $ctx->{Draw}= $defobj_save->{Draw}.'X';
1221 $ctx->{DrawMap}= sub { ''; };
1222 $ctx->{Layer}= { Level => 5, Kind => '' };
1227 $id= $ctx->{InDefObj};
1228 die "unmatched enddef" unless defined $id;
1229 foreach $bit (qw(CmdLog Loc)) {
1230 $objs{$id}{$bit}= $ctx->{$bit};
1232 $objs{$id}{Part}= $defobj_ispart;
1234 $defobj_save= undef;
1235 $defobj_ispart= undef;
1238 sub cmd__runobj ($) {
1242 dv("cmd__runobj $obj_id ",'$ctx',$ctx);
1243 foreach $c (@{ $objs{$obj_id}{CmdLog} }) {
1245 next if $al[0] eq 'enddef';
1250 sub cva_segment ($) {
1252 die "invalid segment" if $sp =~ m/[^0-9A-Za-z_]/;
1256 sub cva_subsegspec ($) {
1258 die "invalid subsegment spec" unless
1259 $sp =~ m,^(\-?)([0-9A-Za-z_]*)(?:/(?:([A-Za-z_]+)(\d+))?)?$,;
1260 my ($sign,$segname,$movfeat,$movconf)=($1,$2,$3,$4);
1262 if (!exists $ctx->{SegName}) {
1268 $ctx->{SegName} =~ m/^\-?/ or die;
1270 $segname= $'.$segname;
1272 for ($map_ctx= $ctx;
1274 $map_ctx= $map_ctx->{Parent}) {
1275 if (defined $movfeat &&
1276 exists $map_ctx->{SegMapNM}{"$segname/$movfeat"}) {
1277 $movfeat= $map_ctx->{SegMapNM}{"$segname/$movfeat"};
1279 if (exists $map_ctx->{SegMapN}{$segname}) {
1280 $map_ctx->{SegMapN}{$segname} =~ m/^\-?/ or die;
1288 return $sign.$segname.'/'.
1289 (defined $movfeat ? sprintf "%s%d", $movfeat, $movconf : '');
1294 $ctx->{SavedSegment}= pop @segments
1295 unless exists $ctx->{SavedSegment};
1298 $csss= can(\&cva_subsegspec);
1299 $length= can(\&cva_len);
1300 push @segments, $csss, $length;
1302 $csss= can(\&cva_subsegspec);
1303 push @segments, $csss;
1308 $sp =~ m,^\w+(?:/[a-zA-Z_]+)?$,
1309 or die "invalid (sub)segment mapping S \`$sp'";
1315 $sp =~ m,^\-?\w+$, or die "invalid segment mapping N' \`$sp'";
1321 $sp =~ m,^[a-zA-Z_]+$, or die "invalid segment mapping M' \`$sp'";
1328 $s= can(\&cva_segmap_s);
1330 $ctx->{SegMapNM}{$s}= can(\&cva_segmap_m);
1332 $ctx->{SegMapN}{$s}= can(\&cva_segmap_n);
1343 $seg= can(\&cva_segment);
1344 $segcmap{$seg}= "@al";
1348 sub layer_draw ($$) {
1353 } elsif ($k eq 's') {
1355 } elsif ($k eq 'l') {
1360 foreach $eo (@eopts) {
1361 #print STDERR "$. layer $k$l eo $eo re $eo->{GlobRe} then $eo->{DrawMods} now $r\n";
1362 next unless $k =~ m/^$eo->{GlobRe}$/;
1363 #print STDERR "$. layer $k$l eo re $eo->{GlobRe} match\n";
1364 next unless &{ $eo->{LayerCheck} }($l);
1365 #print STDERR "$. layer $k$l eo re $eo->{GlobRe} checked\n";
1366 foreach $cc (split //, $eo->{DrawMods}) {
1368 $r .= $cc if $cc =~ m/[A-Z]/;
1371 #print STDERR "layer $k$l gives $r (before map)\n";
1372 $r= &{ $ctx->{DrawMap} }($r);
1378 $kl= can(\&cva_identity);
1379 $kl =~ m/^([A-Za-z_]*)(\d*|\=|\*)$/ or die "invalid layer spec";
1381 $l= $output_layer if $l eq '*';
1382 $l= $ctx->{Layer}{Level} if $l =~ m/^\=?$/;
1383 $ctx->{Layer}{Kind}= $k;
1384 $ctx->{Layer}{Level}= $l;
1385 $ctx->{Draw}= layer_draw($k,$l);
1388 sub cmd_part { cmd__obj(Part); }
1389 sub cmd_obj { cmd__obj(1); }
1390 sub cmd_objflip { cmd__obj(-1); }
1394 my ($obj_id, $ctx_save, $pfx, $actual, $formal_id, $formal, $formcv);
1395 my ($part_name, $ctx_inobj, $obj, $id, $newid, $newpt);
1397 $part_name= can(\&cva_idstr);
1398 $how= (@al && $al[0] =~ s/^\^//) ? -1 : +1;
1400 $obj_id= can(\&cva_idstr);
1401 if (defined $part_name) {
1402 $formal_id= can(\&cva_idstr);
1403 $actual= cano(\&cva_idex, undef);
1404 if (!defined $actual) {
1405 $actual= cva_idex("${part_name}_${formal_id}");
1408 $actual= can(\&cva_idex);
1409 $formal_id= can(\&cva_idstr);
1411 $obj= $objs{$obj_id};
1412 dv("cmd__obj ",'$obj',$obj);
1413 die "unknown obj $obj_id" unless $obj;
1414 $formal= $obj->{Loc}{$formal_id};
1415 die "unknown formal $formal_id" unless $formal;
1418 $how *= $ctx_save->{Trans}{R};
1419 $ctx->{Trans}{R}= $how;
1420 $ctx->{Trans}{A}= $actual->{A} - $formal->{A}/$how;
1421 $formcv= ev_compose({}, $ctx->{Trans},$formal);
1422 $ctx->{Trans}{X}= $actual->{X} - $formcv->{X};
1423 $ctx->{Trans}{Y}= $actual->{Y} - $formcv->{Y};
1424 if (defined $part_name) {
1425 $ctx->{InRunObj}= $ctx_save->{InRunObj}."${part_name}:";
1427 $ctx->{InRunObj}= $ctx_save->{InRunObj}."${obj_id}::";
1429 if ($segments[0] =~ m,(.*[^-]+)/,) {
1430 $ctx->{SegName}= $1;
1432 $ctx->{DrawMap}= sub {
1434 $i= &{ $ctx_save->{DrawMap} }($i);
1444 $ctx->{Draw}= &{ $ctx->{DrawMap} }($ctx_save->{Draw});
1445 cmd__runobj($obj_id);
1446 if (defined $part_name) {
1447 $pfx= $part_name.'_';
1449 if (@al && $al[0] eq '=') {
1450 $pfx= ''; shift @al;
1452 $pfx= cano(\&cva_idstr,undef);
1455 if (exists $ctx->{SavedSegment}) {
1456 @segments= ($ctx->{SavedSegment});
1461 foreach $id (keys %{ $ctx_inobj->{Loc} }) {
1462 next if $id eq $formal_id;
1464 next if exists $ctx_save->{Loc}{$newid};
1465 $newpt= cva_idnew($newid);
1466 %$newpt= %{ $ctx_inobj->{Loc}{$id} };
1469 if (defined $part_name) {
1470 my ($formalr_id, $actualr_id, $formalr, $actualr);
1472 die "part results come in pairs\n" unless @al>=2;
1473 ($formalr_id, $actualr_id, @al) = @al;
1474 if ($actualr_id =~ s/^\-//) {
1475 $formalr_id= "-$formalr_id";
1476 $formalr_id =~ s/^\-\-//;
1479 local ($ctx) = $ctx_inobj;
1480 $formalr= cva_idex($formalr_id);
1482 $actualr= cva_idnew($actualr_id);
1483 %$actualr= %$formalr;
1490 dv("cmd__do $ctx @al ",'$ctx',$ctx);
1491 $cmd= can(\&cva_cmd);
1492 my ($lm,$id,$loc,$io,$ad,$draw,$thendrawre);
1493 $io= defined $ctx->{InDefObj} ? "$ctx->{InDefObj}!" : $ctx->{InRunObj};
1494 o("%L cmd $io $cmd @al\n");
1495 $ctx->{LocsMade}= [ ];
1500 die "too many args" if @al;
1501 foreach $lm (@{ $ctx->{LocsMade} }) {
1503 $loc= $ctx->{Loc}{$id};
1504 $loc->{A} += $pi if $lm->{Neg};
1505 $ad= ang2deg($loc->{A});
1506 ol("%L point $io$id ".loc2dbg($loc)." ($lm->{Neg})\n");
1507 $draw= layer_draw($loc->{LayerKind}, $ctx->{Layer}{Level});
1508 if ($draw =~ m/[LM]/) {
1510 " $loc->{X} $loc->{Y} translate $ad rotate\n");
1511 if ($draw =~ m/M/) {
1512 ol(" 0 $allwidthmin newpath moveto\n".
1513 " 0 -$allwidthmin lineto\n".
1514 " $lmu_marklw setlinewidth stroke\n");
1516 if ($draw =~ m/L/) {
1517 ol(" /s ($id) def\n".
1519 " /sx5 s stringwidth pop\n".
1520 " 0.5 mul $lmu_txtboxpadx add def\n".
1521 " -90 rotate 0 $lmu_txtboxoff translate newpath\n".
1522 " sx5 neg 0 moveto\n".
1523 " sx5 neg $lmu_txtboxh lineto\n".
1524 " sx5 $lmu_txtboxh lineto\n".
1525 " sx5 0 lineto closepath\n".
1526 " gsave 1 setgray fill grestore\n".
1527 " $lmu_txtboxlw setlinewidth stroke\n".
1528 " sx5 neg $lmu_txtboxpadx add $lmu_txtboxtxty\n".
1529 " moveto s show\n");
1537 my ($vs, @lt, $inf, $strft);
1539 $vs= $1 if $vs =~ m/^\$Revision\: ([0-9.]+)\ \$$/;
1540 if (!defined $file_filename) {
1541 $inf= "$vs (unknown file: $file_lineno)";
1542 } elsif (!stat $file_filename ||
1543 !(@lt= localtime((stat _)[9]))) {
1544 $inf= "$file_filename ($1 $!)";
1546 $strft= strftime "%Y-%m-%d %H:%M:%S +%Z", @lt;
1547 $inf= "$file_filename ($1 $strft)";
1549 push @ident_strings, $inf;
1553 sub cmd_showlibrary {
1554 my ($obj_id, $y, $x, $ctx_save, $width, $height);
1555 my ($max_x, $min_x, $max_y, $min_y, $nxty, $obj, $loc, $pat, $got, $glob);
1557 $x=$olu_left; $y=$olu_bottom; undef $nxty;
1559 foreach $obj_id (sort keys %objs) {
1561 foreach $glob (@al) {
1563 $got= !($pat =~ s/^\!//);
1564 die "bad pat" if $pat =~ m/[^0-9a-zA-Z_*?]/;
1565 $pat =~ s/\*/\.*/g; $pat =~ s/\?/./g;
1566 last if $obj_id =~ m/^$pat$/;
1570 $obj= $objs{$obj_id};
1571 next unless $obj->{Part};
1572 ($min_x, $max_x, $min_y, $max_y) = bbox($obj->{Loc});
1576 $width= $max_x - $min_x;
1577 $height= $max_y - $min_y;
1578 if ($width < $height) {
1579 $ctx->{Trans}{A}= 0;
1580 $ctx->{Trans}{X}= $x - $min_x;
1581 $ctx->{Trans}{Y}= $y - $min_y + $olu_textheight;
1583 ($width,$height)=($height,$width);
1584 $ctx->{Trans}{A}= 0.5 * $pi;
1585 $ctx->{Trans}{X}= $x + $max_y;
1586 $ctx->{Trans}{Y}= $y - $min_x + $olu_textheight;
1588 $adj= length($obj_id) * $olu_textallowperc - $width;
1591 $ctx->{Trans}{X} += 0.5 * $adj;
1592 if ($x + $width > $olu_right && defined $nxty) {
1596 } elsif ($y + $height > $olu_top && $y > $olu_bottom) {
1598 $x= $olu_left; $y= $olu_bottom;
1605 $ctx->{InRunObj}= $ctx_save->{InRunObj}."${obj_id}//";
1606 $ctx->{Draw}= $ctx_save->{Draw};
1607 cmd__runobj($obj_id);
1609 " /s ($obj_id) def\n".
1611 ($x + 0.5*$width)." ".($y - $olu_textheight)." moveto\n".
1612 " s stringwidth pop -0.5 mul 0 rmoveto\n".
1613 " s show grestore\n");
1614 $x += $width + $olu_gap_x;
1615 upd_max(\$nxty, $y + $height + $olu_gap_y + $olu_textheight);
1626 " /lf /Courier-New findfont $lmu_marktpt scalefont def\n".
1627 " $ps_page_shift 0 translate 90 rotate\n".
1630 if ($page_x || $page_y) {
1631 o(" /Courier-New findfont 15 scalefont setfont\n".
1632 " 30 30 moveto (${page_x}x${page_y}) show\n");
1635 o(" -$ps_page_xmul $page_x mul -$ps_page_ymul $page_y mul translate\n".
1636 " $ptscale $ptscale scale\n");
1640 open DEBUG, ($debug ? ">&2" : ">/dev/null") or die $!;
1643 select(DEBUG); $|=1;
1644 select(STDOUT); $|=1;
1648 $ctx->{SegName}= '';
1655 if (m/^\#line (\d+)$/) { $file_lineno= $1; next; }
1656 if (m/^\#line (\d+) (.*)$/) {
1659 $file_filename =~ s/^\"(.*)\"$/$1/;
1663 chomp; s/^\s+//; s/\s+$//;
1664 @al= split /\s+/, $_;
1666 print DEBUG "=== @al\n";
1667 last if $al[0] eq 'eof';
1668 push @{ $ctx->{CmdLog} }, [ @al ] if exists $ctx->{CmdLog};
1673 my ($min_x, $max_x, $min_y, $max_y) = bbox($ctx->{Loc});
1675 if (defined $min_x) {
1676 $bboxstr= sprintf("width %.2d (%.2d..%2.d)\n".
1677 "height %.2d (%.2d..%2.d)\n",
1678 $max_x - $min_x, $min_x, $max_x,
1679 $max_y - $min_y, $min_y, $max_y);
1681 $bboxstr= "no locs, no bbox\n";
1683 if (!$quiet) { print STDERR $bboxstr; }
1684 $bboxstr =~ s/^/\%L bbox /mg;
1685 o($bboxstr) or die $!;
1688 my ($tick_x, $tick_y, $ticklen);
1691 " gsave 0.5 setgray 0.33 setlinewidth\n".
1693 " newpath moveto\n".
1694 " -%d 0 rmoveto %d 0 rlineto\n".
1695 " -%d -%d rmoveto 0 %d rlineto stroke\n".
1697 $ticklen, $ticklen*2, $ticklen, $ticklen, $ticklen*2);
1698 for ($tick_x= $min_x; $tick_x < $max_x; $tick_x += 150) {
1699 for ($tick_y= $min_y; $tick_y < $max_y; $tick_y += 150) {
1700 o(sprintf " %f %f regmark\n", $tick_x, $tick_y);
1709 if (@ident_strings) {
1711 $is= join('; ', @ident_strings);
1712 $is =~ s/[()\\]/\\$&/g;
1714 "/Courier-New findfont 6 scalefont setfont\n".