#!/usr/bin/perl -w
use POSIX;
+use IO::Handle;
+use IO::File;
+
+use strict;
+no strict 'subs';
+
+our $scale= 7.0;
+our $page_x= 0;
+our $page_y= 0;
+our $quiet=0;
+our $debug=0;
+our $output_layer= '*';
+our $subsegcmapreq=0;
+our $subsegmovfeatpos='f';
+our $subsegcmapangscale;
+
+our $ps_page_shift= 615;
+our $ps_page_xmul= 765.354;
+our $ps_page_ymul= 538.583;
+
+our @eopts;
+our @segments= ('/');
+our %subsegcmap;
+
+our $drawers= 'arscldmnog';
+our %chdraw_emap= qw(A ARScgd
+ R aRscgD
+ S aRScgd
+ C arsCgd
+ c Arscgd
+ r arcs
+ L LMg
+ l l
+ M Mnog
+ N MNog
+ O MNOg
+ m mnol
+ G Garsclmno);
+
+while (@ARGV && $ARGV[0] =~ m/^\-/) {
+ last if $ARGV[0] eq '-';
+ $_= shift @ARGV;
+ last if $_ eq '--';
+ s/^\-//;
+ while (length) {
+ if (s/^D(\d+)//) { $debug= $1; }
+ elsif (s/^D//) { $debug++; }
+ elsif (s/^q//) { $quiet=1; }
+ elsif (s/^l(\d+|\*)//) { $output_layer=$1; }
+ elsif (s/^S([0-9.]+)$//) { $scale= $1 * 1.0; }
+ elsif (s/^P(\d+)x(\d+)$//) { $page_x= $1; $page_y= $2; }
+ elsif (s/^GR//) { $subsegcmapreq=1; }
+ elsif (s/^GP(\d+|f)$//) { $subsegmovfeatpos=$1; }
+ elsif (s/^GL(.*)$//) {
+ my ($sscmfn) = $1;
+ my ($sscmf, $datum, $csss, $angbits);
+ local ($_);
+ $sscmf= new IO::File $sscmfn, 'r'
+ or die "$sscmfn: cannot open: $!\n";
+ for (;;) {
+ $!=0; $_= <$sscmf>; die $! unless defined $_;
+ last if m/^E/;
+ next unless m/^C/;
+ m,^C\s+(\w*/(?:[A-Za-z_]+)?)\s+(0x[0-9a-f]+)\s+(\d+)\s*$,
+ or die "$sscmfn:$.: syntax error in subseg cmap\n";
+ ($csss,$datum,$angbits)= ($1,$2,$3);
+ if (!defined $subsegcmapangscale) {
+ $subsegcmapangscale= 1<<$angbits;
+ } else {
+ die "angbits varies" if $subsegcmapangscale != 1<<$angbits;
+ }
+ $datum= hex($datum);
+ if ($datum & 0x0ff) {
+ die "sorry, cannot put any movfeatpos or segment in red";
+ }
+ $subsegcmap{$csss}= sprintf("%.6f %.6f",
+ (($datum >> 8) & 0xff)/255.0,
+ (($datum >> 16) & 0xff)/255.0);
+ }
+ $sscmf->error and die "$sscmfn: error reading: $!\n";
+ close $sscmf;
+ } elsif (s/^(e)
+ ((?:[a-z]|\*|\?|\[[a-z][-a-z]*\])*?)
+ (\~?) (\d*) (\=*|\-+|\++) (\d*|\*)
+ ([a-z]+)$//ix) {
+ my ($ee,$g,$n,$d,$c,$v,$cc) = ($1,$2,$3,$4,$5,$6,$7);
+ my ($eo, $invert, $lfn, $ccc, $sense,$limit);
+ $g =~ s/\?/\./g; $g =~ s/\*/\.\*/g;
+ die '-[eE]GND[=]* not allowed' if $v eq '*' && length $d;
+ $d= $output_layer if !length $d;
+ $d= 5 if $d eq '*';
+ $invert= length $n;
+ $c= '=' if !length $c;
+ if (length $v && $v ne '*') {
+ die '-[eE]GN[D]CCV not allowed' if length $c > 1;
+ $c= $c x $v;
+ }
+ if ($c =~ m/^[-+]/) {
+ die '-[eE]GN+/-* not allowed' if $v eq '*';
+ $sense= ($&.'1') + 0;
+ $limit= ($sense * $d) + length($c) - 1;
+ $lfn= sub {
+ ($output_layer eq '*' ? $d
+ : $_[0]) * $sense >= $limit
+ xor $invert;
+ };
+ } elsif ($v eq '*') {
+ $lfn= sub { !$invert; };
+ } else {
+ $limit= length($c) - 1;
+ $lfn= sub {
+#my ($lfn_result)=(
+ ($output_layer eq '*' ? 1
+ : abs($_[0] - $d) <= $limit)
+ xor $invert
+#)
+ ;
+#print STDERR "output layer $output_layer; asking re $_[0] rel $d lim $limit invert $invert result $lfn_result\n";
+#$lfn_result;
+ };
+ }
+ $ccc= '';
+ foreach $c (split //, $cc) {
+ if ($ee eq 'e') {
+ die "bad -e option $c" unless defined $chdraw_emap{$c};
+ $ccc .= $chdraw_emap{$c};
+ } else {
+ die "bad -E option $c" unless $c =~ m/[$drawers]/i;
+ $ccc .= $c;
+ }
+ }
+ $eo->{GlobRe}= $g;
+ $eo->{LayerCheck}= $lfn;
+ $eo->{DrawMods}= $ccc;
+#print STDERR "created eo $eo re $eo->{GlobRe} n=$n d=$d v=$v c=$c limit=$limit cc=$cc\n";
+ push @eopts, $eo;
+ } elsif (m/^S/) {
+ die "-S option must come right at the start and have numeric arg";
+ } else {
+ die "unknown option -$_";
+ }
+ }
+}
+
+our $ptscale= 72/25.4 / $scale;
+
+our $psu_ulen= 4.5;
+our $psu_edgelw= 0.5;
+our $psu_ticklw= 0.1;
+our $psu_ticksperu= 1;
+our $psu_ticklen= 5.0;
+our $psu_gauge= 9;
+our $psu_sleeperlen= 17;
+our $psu_sleeperlw= 15;
+our $psu_raillw= 1.0;
+our $psu_thinlw= 1.0;
+our %psu_subseglw;
+$psu_subseglw{'e'}= 20.0;
+$psu_subseglw{'m'}= 15.0;
+
+our $lmu_marklw= 4;
+our $lmu_marktpt= 11;
+our $lmu_txtboxtxty= $lmu_marktpt * 0.300;
+our $lmu_txtboxh= $lmu_marktpt * 1.100;
+our $lmu_lenboxh= $lmu_marktpt * 1.100;
+our $lmu_txtboxpadx= $lmu_marktpt * 0.335;
+our $lmu_lenboxpadx= $lmu_marktpt * 0.005;
+our $lmu_txtboxoff= $lmu_marklw / 2;
+our $lmu_lenboxoff= -$lmu_marklw * 1.0;
+our $lmu_txtboxlw= 1;
+
+our $olu_left= 10 * $scale;
+our $olu_right= 217 * $scale - $olu_left;
+our $olu_bottom= 20 * $scale;
+our $olu_top= 270 * $scale - $olu_bottom;
+our $olu_gap_x= 30;
+our $olu_gap_y= 60;
+our $olu_textheight= 15;
+our $olu_textallowperc= $lmu_marktpt * 5.0/11;
+
+our $pi= atan2(0,-1);
+
+sub allwidth2 ($) {
+ my ($radius)= @_;
+ return 27 unless defined $radius;
+ $radius= abs($radius);
+ return ($radius >= 450 ? 33 :
+ $radius >= 400 ? 35 :
+ 37);
+}
+sub allwidth ($) { return allwidth2($_[0]) * 0.5; }
+
+our $allwidthmax= allwidth(0);
+our $allwidthmin= allwidth(undef);
# Data structures:
# $ctx->{CmdLog}= undef } not in defobj
# $ctx->{CmdLog}[]= [ command args ] } in defobj
-# $ctx->{LocsMade}[]= $id
+# $ctx->{Parent}= $parent_ctx or undef
+# $ctx->{LocsMade}[]{Id}= $id
+# $ctx->{LocsMade}[]{Neg}= 1 or 0
# $ctx->{Loc}{$id}{X}
# $ctx->{Loc}{$id}{Y}
# $ctx->{Loc}{$id}{A}
+# $ctx->{Loc}{$id}{LayerKind}
# $ctx->{Trans}{X} # transformation. is ev representing
# $ctx->{Trans}{Y} # new origin. (is applied at _input_
# $ctx->{Trans}{A} # not at plot-time)
# $ctx->{Trans}{R} # but multiply all y coords by this!
-# $ctx->{Draw}{T} # 1 or '' for drawing track
-# $ctx->{Draw}{L} # L1 or 1 or '' for labelling or drawing locs
+# $ctx->{Draw} # sequence of one or more chrs from uc $drawers
+# # possibly including X meaning never draw
+# # anything now (eg in defobj)
+# $ctx->{DrawMap} # =$fn s.t.
+# # &$fn($drawchrs_spec_by_layer_cmdline)
+# # = $drawchrs_we_should_use_due_to_obj_etc
+# $ctx->{SegName} # initial segment name (at start of object or file)
+# # or nonexistent if in object in unknown segment
+# # may have leading `-'
+# $ctx->{SegMapN}{$s}= $o
+# $ctx->{SegMapNM}{$s}= $o
+# $ctx->{SavedSegment} # exists iff segment command used, is a $csss
+# $ctx->{Layer}{Level}
+# $ctx->{Layer}{Kind}
#
# $objs{$id}{CmdLog}
# $objs{$id}{Loc}
+# $objs{$id}{Part} # 1 iff object is a part
+#
+# $eopts[]{GlobRe} # regexp for K
+# $eopts[]{LayerCheck} # =$fn where &$fn($l) is true iff layer matches
+# $eopts[]{DrawMods} # modifier chars for drawing
+#
+# @segments= ( $csss0, $dist0, $csss1, $dist1, ..., $csssn )
+# # here each csss may have preceding `-'
+#
+# $subsegcmap{$csss} = "$green $blue"
+# # $csss is canonical subseg spec; always has '/'
-#$debug=1;
-open DEBUG, ($debug ? ">&2" : ">/dev/null") or die $!;
+our $ctx;
+our %objs;
+our @al; # current cmd
-if ($debug) {
- select(DEBUG); $|=1;
- select(STDOUT); $|=1;
-}
+our $o='';
+our $ol='';
+
+our $param; # for parametric_segment
# ev_... functions
#
sub ev_byang ($$;$) {
# ev_byang(R, ANG,[LEN])
- # result is evec of specified angle and length (default=1.0)
+ # result is evec LEN (default=1.0) from origin pointing in direction ANG
my ($res,$ang,$len)=@_;
$len=1.0 unless defined $len;
$res->{X}= $len * cos($ang);
}
sub ev_compose ($$$) {
# ev_compose(SUM_R, A,B);
- # appends B to A, result is end of B'
+ # appends B to A, result is end of new B
+ # (B's X is forwards from end of A, Y is translating left from end of A)
# A may have a member R, which if provided then it should be 1.0 or -1.0,
# and B's Y and A will be multiplied by R first (ie, we can reflect);
my ($sum,$a,$b) = @_;
map { $r->{$_} = $q * $a->{$_} + $p * $b->{$_} } qw(X Y A);
$r;
}
-sub v_bearing ($$) {
- # v_bearing(A,B)
- # returns bearing of B from A (in radians)
- # A->{A} and B->{A} are ignored
+sub a_normalise ($$) {
+ # a_normalise(A,Z)
+ # adds or subtracts 2*$pi to/from A until it is in [ Z , Z+2*$pi >
+ my ($a,$z)=@_;
+ my ($r);
+ $r= $z + fmod($a - $z, 2.0*$pi);
+ $r += 2*$pi if $r < $z;
+ return $r;
+}
+sub ev_bearing ($$) {
+ # ev_bearing(A,B)
+ # returns bearing of B from A
+ # value returned is in [ A->{A}, A->{A} + 2*$pi >
+ # A->{A} and B->{A} are otherwise ignored
my ($a,$b)= @_;
- return atan2($b->{Y} - $a->{Y},
- $b->{X} - $a->{X});
-}
+ my ($r);
+ $r= atan2($b->{Y} - $a->{Y},
+ $b->{X} - $a->{X});
+ $r= a_normalise($r,$a->{A});
+ return $r;
+}
+
+sub v_rotateright ($) {
+ # v_rotateright(A)
+ # returns image of A rotated 90 deg clockwise
+ my ($a)= @_;
+ return { X => $a->{Y}, Y => -$a->{X} };
+}
+sub v_dotproduct ($$) {
+ # v_dotproduct(A,B)
+ my ($a,$b)= @_;
+ return $a->{X} * $b->{X} + $a->{Y} * $b->{Y};
+}
+sub v_scalarmult ($$) {
+ # v_scalarmult(S,V)
+ # multiplies V by scalar S and returns product
+ my ($s,$v)=@_;
+ return { X => $s * $v->{X}, Y => $s * $v->{Y} };
+}
+sub v_add ($;@) {
+ # v_add(A,B,...)
+ # vector sum of all inputs
+ my (@i) = @_;
+ my ($r,$i);
+ $r= { X => 0.0, Y => 0.0 };
+ foreach $i (@i) { $r->{X} += $i->{X}; $r->{Y} += $i->{Y}; }
+ return $r;
+}
+sub v_subtract ($$) {
+ # v_subtract(A,B)
+ # returns vector from A to B, ie B - A
+ my ($a,$b)= @_;
+ return { X => $b->{X} - $a->{X},
+ Y => $b->{Y} - $a->{Y} };
+}
+sub v_len ($) {
+ # v_len(V)
+ # scalar length of V
+ my ($v)=@_;
+ my ($x,$y) = ($v->{X}, $v->{Y});
+ return sqrt($x*$x + $y*$y);
+}
sub v_dist ($$) {
# v_dist(A,B)
# returns distance from A to B
- # A->{A} and B->{A} are ignored
- my ($a,$b)= @_;
- my ($xd,$yd);
- $xd= $b->{X} - $a->{X};
- $yd= $b->{Y} - $a->{Y};
- return sqrt($xd*$xd + $yd*$yd);
-}
+ return v_len(v_subtract($_[0],$_[1]));
+}
+
+sub upd_min ($$) {
+ my ($limr,$now)=@_;
+ $$limr= $now unless defined $$limr && $$limr <= $now;
+}
+sub upd_max ($$) {
+ my ($limr,$now)=@_;
+ $$limr= $now unless defined $$limr && $$limr >= $now;
+}
sub canf ($$) {
my ($converter,$defaulter)=@_;
sub can ($) { my ($c)=@_; canf($c, sub { die "too few args"; }); }
sub cano ($$) { my ($c,$def)=@_; canf($c, sub { return $def }); }
-$pi= atan2(0,-1);
sub signum ($) { return ($_[0] > 0) - ($_[0] < 0); }
-%units_len= qw(- mm mm 1 cm 10 m 1000);
-%units_ang= qw(- d r 1); $units_ang{'d'}= 2*$pi / 360;
+sub bbox ($) {
+ my ($objhash) = @_;
+ my ($min_x, $max_x, $min_y, $max_y);
+ my ($loc);
+ foreach $loc (values %$objhash) {
+ upd_min(\$min_x, $loc->{X} - abs($allwidthmax * sin($loc->{A})));
+ upd_max(\$max_x, $loc->{X} + abs($allwidthmax * sin($loc->{A})));
+ upd_min(\$min_y, $loc->{Y} - abs($allwidthmax * cos($loc->{A})));
+ upd_max(\$max_y, $loc->{Y} + abs($allwidthmax * cos($loc->{A})));
+ }
+ return ($min_x, $max_x, $min_y, $max_y);
+}
+
+our %units_len= qw(- mm mm 1 cm 10 m 1000);
+our %units_ang= qw(- d r 1); $units_ang{'d'}= 2*$pi / 360;
sub cva_len ($) { my ($sp)=@_; cva_units($sp,\%units_len); }
+sub cva_identity ($) { my ($sp)=@_; $sp; }
sub cva_ang ($) { my ($sp)=@_; cva_units($sp,\%units_ang); }
sub cva_absang ($) { input_absang(cva_ang($_[0])) }
sub cva_units ($$) {
return $&;
}
sub cva_idex ($) {
- my ($sp,$id)=@_;
- my ($r,$d,$k,$neg,$na);
+ my ($sp)=@_;
+ my ($id,$r,$d,$k,$neg,$na,$obj_id,$vflip,$locs);
+ if ($sp =~ s/^(\^?)(\w+)\!//) {
+ $vflip= length($1);
+ $obj_id= $2;
+ die "invalid obj $obj_id in loc" unless exists $objs{$obj_id};
+ $locs= $objs{$obj_id}{Loc};
+ } else {
+ $locs= $ctx->{Loc};
+ $vflip= 0;
+ }
$neg= $sp =~ s/^\-//;
$id= cva_idstr($sp);
- die "unknown $id" unless defined $ctx->{Loc}{$id};
- $r= $ctx->{Loc}{$id};
+ die "unknown $id" unless defined $locs->{$id};
+ $r= $locs->{$id};
$d= "idex $id";
foreach $k (sort keys %$r) { $d .= " $k=$r->{$k}"; }
printf DEBUG "%s\n", $d;
+ if ($vflip) {
+ $r= { X => $r->{X}, Y => -$r->{Y}, A => -$r->{A} };
+ }
if ($neg) {
$na= $r->{A} + $pi;
- $na -= 2*$pi if $na >= 2*$pi;
+ $na= a_normalise($na,0);
$r= { X => $r->{X}, Y => $r->{Y}, A => $na };
}
return $r;
}
sub cva_idnew ($) {
my ($sp)=@_;
- my ($id);
+ my ($id, $neg);
+ $neg = $sp =~ s/^\-//;
$id=cva_idstr($sp);
die "duplicate $id" if exists $ctx->{Loc}{$id};
- exists $ctx->{Loc}{$id}{X};
- push @{ $ctx->{LocsMade} }, $id;
+ $ctx->{Loc}{$id}{LayerKind}= $ctx->{Layer}{Kind};
+ push @{ $ctx->{LocsMade} }, {
+ Id => $id,
+ Neg => $neg,
+ };
return $ctx->{Loc}{$id};
}
sub cva_cmd ($) { return cva_idstr($_[0]); }
my ($from,$to,$len,$right,$turn);
$from= can(\&cva_idex);
$to= can(\&cva_idnew);
- $len= can(\&cva_len);
- $right= can(\&cva_len);
- $turn= cano(\&cva_absang, 0);
+ $len= cano(\&cva_len,0);
+ $right= cano(\&cva_len,0) * $ctx->{Trans}{R};
+ $turn= cano(\&cva_ang, 0) * $ctx->{Trans}{R};
my ($u)= ev_compose({}, $from, { X => $len, Y => -$right, A => 0 });
ev_compose($to, $u, { X => 0, Y => 0, A => $turn });
}
sub dv1 ($$$) {
return 0 unless $debug;
my ($pfx,$expr,$v) = @_;
+ my ($ref);
$ref= ref $v;
#print STDERR "dv1 >$pfx|$ref<\n";
if (!$ref) {
}
}
-$ptscale= 72/25.4 / 7.0;
-
-$psu_ulen= 4.5;
-$psu_edgelw= 0.5;
-$psu_ticklw= 0.1;
-$psu_ticksperu= 1;
-$psu_ticklen= 5.0;
-$psu_allwidth= 37.0/2;
-$psu_gauge= 9;
-$psu_sleeperlen= 17;
-$psu_sleeperlw= 15;
-$psu_raillw= 1.0;
-
-$lmu_marklw= 4;
-$lmu_marktpt= 11;
-$lmu_txtboxtxty= $lmu_marktpt * 0.300;
-$lmu_txtboxh= $lmu_marktpt * 1.100;
-$lmu_txtboxpadx= $lmu_marktpt * 0.335;
-$lmu_txtboxoff= $lmu_marklw / 2;
-$lmu_txtboxlw= 1;
-
sub o ($) { $o .= $_[0]; }
sub ol ($) { $ol .= $_[0]; }
+sub oflushpage () {
+ return if $subsegcmapreq;
+ print $o, $ol, " showpage\n"
+ or die $!;
+ $o=$ol='';
+}
+
+our $o_path_verb;
sub o_path_begin () {
o(" newpath\n");
sub o_path_stroke ($) {
my ($width)=@_;
o(" $width setlinewidth stroke\n");
-}
+}
+sub o_path_strokeonly () {
+ o(" stroke\n");
+}
sub o_line ($$$) {
my ($a,$b,$width)=@_;
o_path_stroke($width);
}
+sub current_draw () {
+ my ($r);
+ $r= $ctx->{Draw} =~ m/X/ ? '' : $ctx->{Draw};
+ $r;
+}
+
sub psu_coords ($$$) {
my ($ends,$inunit,$across)=@_;
# $ends->[0]{X} etc.; $inunit 0 to 1 (but go to 1.5);
# $across in mm, +ve to right.
- my (%ea_zo);
+ my (%ea_zo, $zo, $prop);
$ea_zo{X}=$ea_zo{Y}=0;
foreach $zo (qw(0 1)) {
$prop= $zo ? $inunit : (1.0 - $inunit);
return $ea_zo{X}." ".$ea_zo{Y};
}
+sub parametric__o_pt ($) {
+ my ($pt)=@_;
+ o_path_point("$pt->{X} $pt->{Y}");
+}
+
+our $segused_incurrent;
+our $segused_currentpt;
+our $segmentpart_counter=0;
+our $segused_restorecounter;
+
+sub segment_used__print ($) {
+ my ($pt) = @_;
+ if ($segused_incurrent > 0 && $segused_restorecounter==1) {
+ o("%L segmentpart ".
+ $segmentpart_counter++." ".
+ $ctx->{Layer}{Level}.$ctx->{Layer}{Kind}." ".
+ $segments[0]." ".
+ $segused_incurrent." ".
+ loc2dbg($segused_currentpt)." ".
+ loc2dbg($pt)."\n");
+ }
+ $segused_incurrent= undef;
+ $segused_currentpt= undef;
+}
+
+sub segment_used__len ($$) {
+ my ($used,$pt) = @_;
+ $segused_incurrent++;
+
+ return if @segments < 3;
+ $segments[1] -= $used;
+ return if $segments[1] > 0;
+
+ segment_used__print($pt);
+ segment_used_begin($pt);
+
+ @segments= @segments[2..$#segments];
+ o("% segments @segments\n");
+}
+
+sub segment_state_save () {
+ return [ 0, $segused_incurrent, $segused_currentpt,
+ $segmentpart_counter, @segments ];
+}
+sub segment_state_restore ($) {
+ my ($r) = @_;
+ ($segused_restorecounter, $segused_incurrent, $segused_currentpt,
+ $segmentpart_counter, @segments) = @$r;
+ $r->[0]++;
+}
+
+sub segment_used_begin ($) {
+ $segused_incurrent= 0;
+ $segused_currentpt= $_[0];
+}
+sub segment_used_middle ($$) {
+ my ($used,$pt) = @_;
+ segment_used__len($used,$pt);
+}
+sub segment_used_end ($$) {
+ my ($used,$pt) = @_;
+ segment_used__len($used,$pt);
+ segment_used__print($pt);
+}
sub parametric_segment ($$$$$) {
- my ($endstatuses,$p0,$p1,$lenperp,$calcfn) = @_;
- # makes $p (global) go from $p0 to $p1 ($p1>$p0)
- # $ends is II, SI, IS, SS (I=actual lineobj end, S=in mid of lineobj)
+ my ($p0,$p1,$lenperp,$minradius,$calcfn) = @_;
+ # makes $param (global) go from $p0 to $p1 ($p1>$p0)
# $lenperp is the length of one unit p, ie the curve
# must have a uniform `density' in parameter space
- # $calcfn is invoked with $p set and should return a loc
+ # $calcfn is invoked with $param set and should return a loc
# (ie, ref to X =>, Y =>, A =>).
- my ($pa,$pb,@ends,$side,$ppu,$e,$v,$tick);
- return unless $ctx->{Draw}{T} =~ m/1/;
+ my ($pa,$pb,@ends,$side,$ppu,$e,$v,$tick,$draw,$allwidth);
+ return unless $ctx->{Draw} =~ m/[ARSCG]/;
$ppu= $psu_ulen/$lenperp;
+ $allwidth= allwidth($minradius);
my ($railctr)=($psu_gauge + $psu_raillw)*0.5;
- my ($tickend)=($psu_allwidth - $psu_ticklen);
+ my ($tickend)=($allwidth - $psu_ticklen);
my ($tickpitch)=($psu_ulen / $psu_ticksperu);
my ($sleeperctr)=($psu_ulen*0.5);
my ($sleeperend)=($psu_sleeperlen*0.5);
print DEBUG "ps $p0 $p1 $lenperp ($ppu)\n";
+ $draw= current_draw();
+ if ($draw =~ m/G/) {
+ my ($pt,$going,$red,$csegbare,$movfeat,$movstroke);
+ my ($used_last,$me,$segsave);
+ $segsave= segment_state_save();
+ foreach $me (qw(e m)) {
+ segment_state_restore($segsave);
+ $going=0;
+ o("% segments @segments\n");
+ $param=$p0;
+ $pt= &$calcfn;
+ segment_used_begin($pt);
+ for (;;) {
+ $movstroke= " cmapreq-stroke\n";
+ $csegbare= $segments[0];
+ $csegbare =~ s/^\-//;
+ if ($subsegcmapreq) {
+ if (!exists $subsegcmap{$csegbare}) {
+ print "$csegbare\n" or die $!;
+ $subsegcmap{$csegbare}++;
+ }
+ } else {
+ $movfeat= $csegbare =~ s,(/\D+)(\d+)$,$1, ? $2 : 'f';
+ die "unknown subsegment colour for $csegbare\n"
+ unless exists $subsegcmap{$csegbare};
+ $red= $pt->{A} / (2*$pi);
+ $red *= $subsegcmapangscale;
+ $red += $subsegcmapangscale*2;
+ $red += $subsegcmapangscale/2 if $segments[0] =~ m/^\-/;
+ $red %= $subsegcmapangscale;
+ $red += $subsegcmapangscale if $me eq 'e';
+ $red= sprintf("%f", $red / 255.0);
+ $movstroke=
+ (" $red $subsegcmap{$csegbare} setrgbcolor\n".
+ " $psu_subseglw{$me} setlinewidth stroke\n");
+ if ($subsegmovfeatpos ne $movfeat ||
+ ($me eq 'e' && $csegbare =~ m,^/,)) {
+ $movstroke= "% no-stroke\n";
+ }
+ }
+ o_path_begin();
+ parametric__o_pt($pt);
+
+ $param += $ppu;
+ last if $param>=$p1;
+ $pt= &$calcfn;
+ segment_used_middle($psu_ulen,$pt);
+ parametric__o_pt($pt);
+ o($movstroke);
+ }
+ $used_last= $p1-($param-$ppu);
+ $param=$p1;
+ $pt= &$calcfn;
+ segment_used_end($used_last * $lenperp, $pt);
+ parametric__o_pt($pt);
+ o($movstroke);
+ }
+ }
+ if ($draw =~ m/C/) {
+ my ($pt);
+ o(" $psu_thinlw setlinewidth\n");
+ o_path_begin();
+ for ($param=$p0; $param<$p1; $param += $ppu) {
+ parametric__o_pt(&$calcfn);
+ }
+ $param=$p1;
+ parametric__o_pt(&$calcfn);
+ o(" stroke\n");
+ }
+ if ($draw =~ m/D/) {
+ my ($pt,$ad,$len);
+ $param= ($p0+$p1)*0.5;
+ $pt= &$calcfn;
+ $ad= ang2deg($pt->{A});
+ $len= sprintf "%.0f", $lenperp * abs($p1-$p0);
+ ol(" gsave\n".
+ " $pt->{X} $pt->{Y} translate\n".
+ " $ad rotate\n".
+ " lf setfont 0 $lmu_lenboxoff moveto ($len) show\n".
+ " grestore\n");
+ }
+ return unless $draw =~ m/[ARS]/;
for ($pa= $p0; $pa<$p1; $pa=$pb) {
$pb= $pa + $ppu;
- $p= $pa; $ends[0]= @ends ? $ends[1] : &$calcfn;
- $p= $pb; $ends[1]= &$calcfn;
+ $param= $pa; $ends[0]= @ends ? $ends[1] : &$calcfn;
+ $param= $pb; $ends[1]= &$calcfn;
#print DEBUG "pa $pa $ends[0]{X} $ends[0]{Y} $ends[0]{A}\n";
#print DEBUG "pb $pb $ends[1]{X} $ends[1]{Y} $ends[1]{A}\n";
$e= $pb<=$p1 ? 1.0 : ($p1-$pa)/$ppu;
o(" gsave\n");
o_path_begin();
- o_path_point(psu_coords(\@ends,0,-$psu_allwidth));
- o_path_point(psu_coords(\@ends,0,$psu_allwidth));
- o_path_point(psu_coords(\@ends,$e,$psu_allwidth));
- o_path_point(psu_coords(\@ends,$e,-$psu_allwidth));
+ o_path_point(psu_coords(\@ends,0,-$allwidth));
+ o_path_point(psu_coords(\@ends,0,$allwidth));
+ o_path_point(psu_coords(\@ends,$e,$allwidth));
+ o_path_point(psu_coords(\@ends,$e,-$allwidth));
o(" closepath clip\n");
foreach $side qw(-1 1) {
- o_line(psu_coords(\@ends,0,$side*$psu_allwidth),
- psu_coords(\@ends,1.5,$side*$psu_allwidth),
- $psu_edgelw);
- o_line(psu_coords(\@ends,0,$side*$railctr),
- psu_coords(\@ends,1.5,$side*$railctr),
- $psu_raillw);
- for ($tick=0; $tick<1.5; $tick+=$tickpitch/$psu_ulen) {
- o_line(psu_coords(\@ends,$tick,$side*$psu_allwidth),
- psu_coords(\@ends,$tick,$side*$tickend),
- $psu_ticklw);
+ if ($draw =~ m/R/) {
+ o_line(psu_coords(\@ends,0,$side*$railctr),
+ psu_coords(\@ends,1.5,$side*$railctr),
+ $psu_raillw);
+ }
+ }
+ if ($draw =~ m/S/) {
+ o_line(psu_coords(\@ends,$sleeperctr,-$sleeperend),
+ psu_coords(\@ends,$sleeperctr,+$sleeperend),
+ $psu_sleeperlw);
+ }
+ if ($draw =~ m/A/) {
+ o(" 0.5 setgray\n");
+ foreach $side qw(-1 1) {
+ o_line(psu_coords(\@ends,0,$side*$allwidth),
+ psu_coords(\@ends,1.5,$side*$allwidth),
+ $psu_edgelw);
+ for ($tick=0; $tick<1.5; $tick+=$tickpitch/$psu_ulen) {
+ o_line(psu_coords(\@ends,$tick,$side*$allwidth),
+ psu_coords(\@ends,$tick,$side*$tickend),
+ $psu_ticklw);
+ }
}
}
- o_line(psu_coords(\@ends,$sleeperctr,-$sleeperend),
- psu_coords(\@ends,$sleeperctr,+$sleeperend),
- $psu_sleeperlw);
o(" grestore\n");
}
}
-sub arc ($$$$$$$) {
- my ($to, $endstatuses, $ctr,$from,$fromsense, $radius,$delta) = @_;
+sub arc ($$$$$) {
+ my ($to, $ctr,$from, $radius,$delta) = @_;
# does parametric_segment to draw an arc centred on $ctr
+ # ($ctr->{A} ignored)
# from $from with radius $radius (this must be consistent!)
- # and subtending an angle $delta.
+ # and directionally-subtending an angle $delta.
# sets $to->... to be the other end, and returns $to
- # $fromsense is 1 or -1, and affects only the interpretation
- # of $from->{A} (not the result).
- my ($beta, $fromadj);
- $fromadj= (1.0 - $fromsense) * $pi;
- $to->{A}= $beta= $from->{A} + $fromadj + $delta;
+ my ($beta);
+ $to->{A}= $beta= $from->{A} + $delta;
$to->{X}= $ctr->{X} - $radius * sin($beta);
$to->{Y}= $ctr->{Y} + $radius * cos($beta);
- parametric_segment($endstatuses, 0.0,1.0, abs($radius*$delta), sub {
- my ($beta) = $from->{A} + $delta * $p;
+ return if abs($delta*$radius) < 1e-9;
+ parametric_segment(0.0,1.0, abs($radius*$delta), $radius, sub {
+ my ($beta) = $from->{A} + $delta * $param;
return { X => $ctr->{X} - $radius * sin($beta),
Y => $ctr->{Y} + $radius * cos($beta),
A => $beta }
});
}
+# joins_xxx all take $results, $from, $to, $minradius
+# where $results->[]{Path}{K} etc. and $results->[]{SolKinds}[]
+
+sub joins_twoarcs ($$$$) {
+ my ($results, $from,$to,$minradius) = @_;
+ # two circular arcs of equal maximum possible radius
+ # algorithm courtesy of Simon Tatham (`Railway problem',
+ # pers.comm. to ijackson@chiark 23.1.2004)
+ my ($sigma,$distfact, $theta,$phi, $a,$b,$c,$d, $m,$r, $radius);
+ my ($cvec,$cfrom,$cto,$midpt, $delta1,$delta2, $path,$reverse);
+ $sigma= ev_bearing($from,$to);
+ $distfact= v_dist($from,$to);
+ $theta= 0.5 * $pi - ($from->{A} - $sigma);
+ $phi= 0.5 * $pi - ($to->{A} + $pi - $sigma);
+ $a= 2 * (1 + cos($theta - $phi));
+ $b= 2 * (cos($theta) - cos($phi));
+ $c= -1;
+ $d= sqrt($b*$b - 4*$a*$c);
+ o("% twoarcs theta=".ang2deg($theta)." phi=".ang2deg($phi).
+ " ${a}r^2 + ${b}r + ${c} = 0\n");
+ foreach $m (qw(-1 1)) {
+ if ($a < 1e-6) {
+ o("% twoarcs $m insoluble\n");
+ next;
+ }
+ $r= -0.5 * (-$b + $m*$d) / $a;
+ $radius= -$r * $distfact;
+ o("% twoarcs $m radius $radius ");
+ if (abs($radius) < $minradius) { o("too-small\n"); next; }
+ $cfrom= ev_compose({}, $from, { X=>0, Y=>-$radius, A=>-0.5*$pi });
+ $cto= ev_compose({}, $to, { X=>0, Y=> $radius, A=> 0.5*$pi });
+ $midpt= ev_lincomb({}, $cfrom, $cto, 0.5);
+ $reverse= signum($r);
+ if ($reverse<0) {
+ $cfrom->{A} += $pi;
+ $cto->{A} += $pi;
+ }
+ $delta1= ev_bearing($cfrom, $midpt) - $cfrom->{A};
+ $delta2= ev_bearing($cto, $midpt) - $cto->{A};
+ o("ok deltas ".ang2deg($delta1)." ".ang2deg($delta2)."\n");
+ if ($reverse<0) {
+ $delta1 -= 2*$pi;
+ $delta2 -= 2*$pi;
+ }
+ my ($fs);
+ $path= [{ T=>Arc, F=>$from, C=>$cfrom, R=> $radius, D=>$delta1 },
+ { T=>Arc, F=>$to, C=>$cto, R=>-$radius, D=>$delta2 }];
+ push @$results, { Path => $path,
+ SolKinds => [ 'twoarcs', 'cross' ] };
+ }
+}
+
+sub joins_arcsline ($$$$) {
+ my ($results, $from,$to,$minradius) = @_;
+ # two circular arcs of specified radius
+ # with an intervening straight
+ my ($lr,$inv, $c,$d,$alpha,$t,$k,$l,$rpmsina,$rcosa,$linelen, $path);
+ if ($minradius<=1e-6) { o("% arcsline no-radius\n"); return; }
+ foreach $lr (qw(-1 +1)) {
+ foreach $inv (qw(-1 +1)) {
+ $c=ev_compose({},$from,{X=>0,Y=>-$lr*$minradius, A=>0 });
+ $d=ev_compose({},$to,{X=>0, Y=>-$inv*$lr*$minradius, A=>$pi });
+ $t= v_dist($c,$d);
+ o("% arcsline $lr $inv t=$t ");
+ if ($t < 1e-6) { o("concentric"); next; }
+ $c->{A}= $d->{A}= ev_bearing($c,$d);
+ o("bearing ".ang2deg($c->{A}));
+ if ($inv>0) {
+ o("\n");
+ $k= ev_compose({}, $c, { X=>0, Y=>$lr*$minradius, A=>0 });
+ $l= ev_compose({}, $d, { X=>0, Y=>$lr*$minradius, A=>0 });
+ $linelen= $t;
+ } else {
+ my ($cosalpha) = 2.0 * $minradius / $t;
+ if ($cosalpha > (1.0 - 1e-6)) { o(" too-close\n"); next; }
+ $alpha= acos($cosalpha);
+ $rpmsina= $lr * $minradius * sin($alpha);
+ $rcosa= $minradius * $cosalpha;
+ $k= ev_compose({}, $c, { X=>$rcosa, Y=>$rpmsina, A=>0 });
+ $l= ev_compose({}, $d, { X=>-$rcosa, Y=>-$rpmsina, A=>0 });
+ $k->{A}= $l->{A}= ev_bearing($k,$l);
+ o(" alpha=".ang2deg($alpha)." kl^=".ang2deg($k->{A})."\n");
+ $linelen= v_dist($k,$l);
+ }
+ $path= [{ T => Arc, F => $from, C => $c,
+ R =>$lr*$minradius,
+ D => -$lr * a_normalise
+ ($lr * ($from->{A} - $k->{A}), 0) },
+ { T => Line, A => $k, B => $l, L => $linelen },
+ { T => Arc, F => $l, C => $d,
+ R => $inv*$lr*$minradius,
+ D => -$lr*$inv * a_normalise
+ (-$lr*$inv * ($to->{A} - $l->{A}), 0) }];
+ push @$results,
+ { Path => $path,
+ SolKinds => [ 'arcsline', ($inv<0 ? 'cross' : 'loop') ] };
+ }
+ }
+}
+
+sub joins_arcline ($$$$) {
+ my ($results, $from,$to,$minradius) = @_;
+ # one circular arc and a straight line
+ my ($swap,$echoice,$path, $ap,$bp,$av,$bv, $e,$f, $ae,$af,$afae);
+ my ($dak,$ak,$kj,$k,$j,$aja,$jl,$l,$jc,$lc,$c,$rj,$rb);
+ foreach $swap (qw(-1 +1)) {
+ foreach $echoice (qw(0 1)) {
+ $ap= $from; $bp= { %$to }; $bp->{A} += $pi;
+ ($ap,$bp)= ($bp,$ap) if $swap<0;
+ $av= ev_byang({}, $ap->{A});
+ $bv= ev_byang({}, $bp->{A});
+ $e= ev_byang({}, 0.5 * ($ap->{A} + $bp->{A} + $echoice * $pi));
+ $f= v_rotateright($e);
+ o("% arcline $swap $echoice e ".loc2dbg($e)."\n");
+ $ae= v_dotproduct($av,$e);
+ $af= v_dotproduct($av,$f);
+ o("% arcline $swap $echoice a.e=$ae a.f=$af ");
+ if (abs($ae) < 1e-6) { o(" singular\n"); next; }
+ $afae= $af/$ae;
+ o("a.f/a.e=$afae\n");
+ $dak= v_dotproduct(v_subtract($ap,$bp), $e);
+ $ak= v_scalarmult($dak, $e);
+ $kj= v_scalarmult($dak * $afae, $f);
+ $k= v_add($ap, $ak);
+ $j= v_add($k, $kj);
+ $aja= v_dotproduct(v_subtract($ap,$j), $av);
+ o("% arcline $swap $echoice d_ak=$dak aj.a=$aja ");
+ if ($aja < 0) { o(" backwards aj\n"); next; }
+ $jl= v_scalarmult(0.5, v_subtract($j, $bp));
+ $lc= v_scalarmult(-v_dotproduct($jl, $f) * $afae, $e);
+ $l= v_add($j, $jl);
+ $c= v_add($l, $lc);
+ $rj= v_dotproduct(v_subtract($j,$c), v_rotateright($av));
+ $rb= v_dotproduct(v_subtract($c,$bp), v_rotateright($bv));
+ o("r_j=$rj r_b=$rb ");
+ if ($rj * $rb < 0) { o(" backwards b\n"); next; }
+ if (abs($rj) < $minradius) { o(" too-small\n"); next; }
+ o("ok\n");
+ $j->{A}= $ap->{A};
+ $c->{A}= 0;
+ $path= [{ T => Line, A => $ap, B => $j, L => $aja },
+ { T => Arc, F => $j, C => $c, R => $rj,
+ D => -signum($rj) * a_normalise
+ (-signum($rj) * ($bp->{A} + $pi - $j->{A}), 0) }];
+ $path= [ reverse @$path ] if $swap<0;
+ push @$results, { Path => $path, SolKinds => [ 'arcline' ] };
+ }
+ }
+}
+
sub cmd_join {
- my ($from,$to,$how);
+ my ($from,$to,$minradius);
+ my (@results,$result);
+ my ($path,$segment,$bestpath,$len,$scores,$bestscores,@bends,$skl);
+ my ($crit,$cs,$i,$cmp);
$from= can(\&cva_idex);
$to= can(\&cva_idex);
- $how= can(cvam_enum(qw(arcs arcsm)));
- my ($sigma,$distfact, $theta,$phi, $a,$b,$c,$d2, $r,$cfrom);
- $sigma= v_bearing($from,$to);
- $distfact= v_dist($from,$to);
- $theta= $from - $sigma;
- $phi= $to + 2 * $pi - $sigma;
- $a= 2 * (1 + sin($theta - $phi));
- $b= 2 * (sin($theta) - sin($phi));
- $c= -1;
- die "too close" if $a<1.1e-10;
- $d2= $b*$b - 4*$a*$c;
- $pm = $how =~ /m$/ ? -1 : +1;
- $r= (-$b + $pm*sqrt($d2))/$a;
- $rf= $r*$distfact;
- $cfrom= ev_compose({}, $from, { Y => $rf, X => 0, A => 0 });
- $cto= ev_compose({}, $to, { Y => -$rf, X => 0, A => 0 });
- $cbearing= v_bearing($cfrom,$cto);
- arc({}, IS, $cfrom,$from,1.0, $rf, $cbearing - $cfrom->{A});
- arc({}, IS, $cto, $to, -1.0, -$rf, $cbearing - $cfrom->{A} + 2*$pi);
+ $minradius= can(\&cva_len);
+ o("% join ".loc2dbg($from)."..".loc2dbg($to)." $minradius\n");
+ joins_twoarcs(\@results, $from,$to,$minradius);
+ joins_arcsline(\@results, $from,$to,$minradius);
+ joins_arcline(\@results, $from,$to,$minradius);
+ foreach $result (@results) {
+ $path= $result->{Path};
+ $skl= $result->{SolKinds};
+ o("% possible path @$skl $path\n");
+ $len= 0;
+ @bends= ();
+ foreach $segment (@$path) {
+ if ($segment->{T} eq Arc) {
+ o("% Arc C ".loc2dbg($segment->{C}).
+ " R $segment->{R} D ".ang2deg($segment->{D})."\n");
+ $len += abs($segment->{R} * $segment->{D});
+ push @bends, -abs($segment->{R}) * $segment->{D}; # right +ve
+ } elsif ($segment->{T} eq Line) {
+ o("% Line A ".loc2dbg($segment->{A}).
+ " B ".loc2dbg($segment->{A})." L $segment->{L}\n");
+ $len += abs($segment->{L});
+ } else {
+ die "unknown segment $segment->{T}";
+ }
+ }
+ o("% length $len bends @bends.\n");
+ $scores= [];
+ foreach $crit (@al, 'short') {
+ if ($crit eq 'long') { $cs= $len; }
+ elsif ($crit eq 'short') { $cs= -$len; }
+ elsif ($crit =~ m/^(begin|end|)(left|right)$/) {
+ if ($1 eq 'begin') { $cs= $bends[0]; }
+ elsif ($1 eq 'end') { $cs= $bends[$#bends]; }
+ else { $cs=0; map { $cs += $_ } @bends; }
+ $cs= -$cs if $2 eq 'left';
+ } elsif ($crit =~ m/^(\!?)(twoarcs|arcs?line|cross|loop)$/) {
+ $cs= !!(grep { $2 eq $_ } @$skl) != ($1 eq '!');
+ } else {
+ die "unknown sort criterion $crit";
+ }
+ push @$scores, $cs;
+ }
+ o("% scores @$scores\n");
+ if (defined $bestpath) {
+ for ($i=0,$cmp=0; !$cmp && $i<@$scores; $i++) {
+ $cmp= $scores->[$i] <=> $bestscores->[$i];
+ }
+ next if $cmp < 0;
+ }
+ $bestpath= $path;
+ $bestscores= $scores;
+ }
+ die "no solution" unless defined $bestpath;
+ o("% chose path $bestpath @al\n");
+ @al= ();
+ foreach $segment (@$bestpath) {
+ if ($segment->{T} eq 'Arc') {
+ arc({}, $segment->{C},$segment->{F},$segment->{R},$segment->{D});
+ } elsif ($segment->{T} eq 'Line') {
+ line($segment->{A}, $segment->{B}, $segment->{L});
+ } else {
+ die "unknown segment";
+ }
+ }
+}
+
+sub line ($$$) {
+ my ($from,$to,$len) = @_;
+ if ($len < 0) {
+ ($from,$to,$len) = ($to,$from,-$len);
+ }
+ parametric_segment(0.0, 1.0, $len + 1e-6, undef, sub {
+ ev_lincomb({}, $from, $to, $param);
+ });
}
sub cmd_extend {
- my ($from,$to,$radius,$ctr,$beta,$ang,$how,$sign_r);
+ my ($from,$to,$radius,$len,$upto,$ctr,$beta,$ang,$how,$sign_r);
$from= can(\&cva_idex);
$to= can(\&cva_idnew);
printf DEBUG "from $from->{X} $from->{Y} $from->{A}\n";
elsif ($how eq 'parallel' || $how eq 'upto') { $upto= can(\&cva_idex); }
$radius= cano(\&cva_len, 'Inf'); # +ve is right hand bend
if ($radius eq 'Inf') {
- print DEBUG "extend inf $len\n";
- if ($how eq 'ang') { die "len of straight spec by angle"; }
+# print DEBUG "extend inf $len\n";
if ($how eq 'upto') {
$len= ($upto->{X} - $from->{X}) * cos($from->{A})
+ ($upto->{Y} - $from->{Y}) * sin($from->{A});
+ } elsif ($how eq 'len') {
+ } else {
+ die "len of straight spec by angle";
}
printf DEBUG "len $len\n";
$to->{X}= $from->{X} + $len * cos($from->{A});
$to->{Y}= $from->{Y} + $len * sin($from->{A});
$to->{A}= $from->{A};
- parametric_segment(II, 0.0, 1.0, abs($len), sub {
- ev_lincomb({}, $from, $to, $p);
- });
+ line($from,$to,$len);
} else {
+ my ($sign_r, $sign_ang, $ctr, $beta_interval, $beta, $delta);
print DEBUG "radius >$radius<\n";
$radius *= $ctx->{Trans}{R};
$sign_r= signum($radius);
$delta= $beta - $from->{A};
last if $sign_ang * $sign_r * $delta <= 0;
$beta -= $sign_ang * $sign_r * $beta_interval * $pi;
- }
+ }
printf DEBUG "ctr->{Y}=$ctr->{Y} radius=$radius beta=$beta\n";
- arc($to, II, ,$ctr,$from,1.0, $radius,$delta);
+ arc($to, ,$ctr,$from, $radius,$delta);
}
printf DEBUG "to $to->{X} $to->{Y} $to->{A}\n";
}
+sub loc2dbg ($) {
+ my ($loc) = @_;
+ return "$loc->{X} $loc->{Y} ".ang2deg($loc->{A});
+}
sub ang2deg ($) {
return $_[0] * 180 / $pi;
}
return ($out->{X}, $out->{Y});
}
-sub newctx () {
+sub newctx (;$) {
+ my ($ctx_save) = @_;
$ctx= {
Trans => { X => 0.0, Y => 0.0, A => 0.0, R => 1.0 },
InRunObj => "",
- Draw => { T => 1, L => L1 }
+ DrawMap => sub { $_[0]; },
+ SegMapN => { },
+ SegMapNM => { }
};
+ if (defined $ctx_save) {
+ %{ $ctx->{Layer} }= %{ $ctx_save->{Layer} };
+ $ctx->{Parent}= $ctx_save;
+ }
}
-sub cmd_defobj {
+our $defobj_save;
+our $defobj_ispart;
+
+sub cmd_defobj { cmd__defobj(0); }
+sub cmd_defpart { cmd__defobj(1); }
+sub cmd__defobj ($) {
+ my ($ispart) = @_;
my ($id);
$id= can(\&cva_idstr);
die "nested defobj" if $defobj_save;
die "repeated defobj" if exists $objs{$id};
$defobj_save= $ctx;
- newctx();
+ $defobj_ispart= $ispart;
+ newctx($defobj_save);
$ctx->{CmdLog}= [ ];
$ctx->{InDefObj}= $id;
- $ctx->{Draw}= { T => '', L => '' }
+ $ctx->{Draw}= $defobj_save->{Draw}.'X';
+ $ctx->{DrawMap}= sub { ''; };
+ $ctx->{Layer}= { Level => 5, Kind => '' };
}
-sub cmd_enddefobj {
+sub cmd_enddef {
my ($bit,$id);
$id= $ctx->{InDefObj};
- die "unmatched enddefobj" unless defined $id;
+ die "unmatched enddef" unless defined $id;
foreach $bit (qw(CmdLog Loc)) {
$objs{$id}{$bit}= $ctx->{$bit};
}
+ $objs{$id}{Part}= $defobj_ispart;
$ctx= $defobj_save;
$defobj_save= undef;
+ $defobj_ispart= undef;
+}
+
+sub cmd__runobj ($) {
+ my ($obj_id)=@_;
+ my ($c);
+ local (@al);
+ dv("cmd__runobj $obj_id ",'$ctx',$ctx);
+ foreach $c (@{ $objs{$obj_id}{CmdLog} }) {
+ @al= @$c;
+ next if $al[0] eq 'enddef';
+ cmd__one();
+ }
+}
+
+sub cva_subsegspec ($) {
+ my ($sp)=@_;
+ die "invalid subsegment spec" unless
+ $sp =~ m,^(\-?)([0-9A-Za-z_]*)(?:/(?:([A-Za-z_]+)(\d+))?)?$,;
+ my ($sign,$segname,$movfeat,$movconf)=($1,$2,$3,$4);
+
+ if (!exists $ctx->{SegName}) {
+ $segname= '';
+ $sign= '';
+ } else {
+ my ($map_ctx);
+
+ $ctx->{SegName} =~ m/^\-?/ or die;
+ $sign .= $&;
+ $segname= $'.$segname;
+
+ for ($map_ctx= $ctx;
+ defined $map_ctx;
+ $map_ctx= $map_ctx->{Parent}) {
+ if (defined $movfeat &&
+ exists $map_ctx->{SegMapNM}{"$segname/$movfeat"}) {
+ $movfeat= $map_ctx->{SegMapNM}{"$segname/$movfeat"};
+ }
+ if (exists $map_ctx->{SegMapN}{$segname}) {
+ $map_ctx->{SegMapN}{$segname} =~ m/^\-?/ or die;
+ $sign .= $&;
+ $segname= $';
+ }
+ }
+ $sign =~ s/\-\-//g;
+ }
+
+ return $sign.$segname.'/'.
+ (defined $movfeat ? sprintf "%s%d", $movfeat, $movconf : '');
+}
+
+sub cmd_segment {
+ my ($csss,$length);
+ $ctx->{SavedSegment}= pop @segments
+ unless exists $ctx->{SavedSegment};
+ @segments= ();
+ while (@al>1) {
+ $csss= can(\&cva_subsegspec);
+ $length= can(\&cva_len);
+ push @segments, $csss, $length;
+ }
+ $csss= can(\&cva_subsegspec);
+ push @segments, $csss;
+}
+
+sub cva_segmap_s {
+ my ($sp) = @_;
+ $sp =~ m,^\w+(?:/[a-zA-Z_]+)?$,
+ or die "invalid (sub)segment mapping S \`$sp'";
+ return $sp;
+}
+
+sub cva_segmap_n {
+ my ($sp) = @_;
+ $sp =~ m,^\-?\w+$, or die "invalid segment mapping N' \`$sp'";
+ return $sp;
+}
+
+sub cva_segmap_m {
+ my ($sp) = @_;
+ $sp =~ m,^[a-zA-Z_]+$, or die "invalid segment mapping M' \`$sp'";
+ return $sp;
+}
+
+sub cmd_segmap {
+ my ($s,$d);
+ while (@al) {
+ $s= can(\&cva_segmap_s);
+ if ($s =~ m,/,) {
+ $ctx->{SegMapNM}{$s}= can(\&cva_segmap_m);
+ } else {
+ $ctx->{SegMapN}{$s}= can(\&cva_segmap_n);
+ }
+ }
+}
+
+sub layer_draw ($$) {
+ my ($k,$l) = @_;
+ my ($eo,$cc, $r);
+ if ($k eq '') {
+ $r= 'RLMN';
+ } elsif ($k eq 's') {
+ $r= '';
+ } elsif ($k eq 'l') {
+ $r= 'CLMN';
+ } else {
+ $r= 'ARSCLMNO';
+ }
+ foreach $eo (@eopts) {
+#print STDERR "$. layer $k$l eo $eo re $eo->{GlobRe} then $eo->{DrawMods} now $r\n";
+ next unless $k =~ m/^$eo->{GlobRe}$/;
+#print STDERR "$. layer $k$l eo re $eo->{GlobRe} match\n";
+ next unless &{ $eo->{LayerCheck} }($l);
+#print STDERR "$. layer $k$l eo re $eo->{GlobRe} checked\n";
+ foreach $cc (split //, $eo->{DrawMods}) {
+ $r =~ s/$cc//ig;
+ $r .= $cc if $cc =~ m/[A-Z]/;
+ }
+ }
+#print STDERR "layer $k$l gives $r (before map)\n";
+ $r= &{ $ctx->{DrawMap} }($r);
+ return $r;
}
+sub cmd_layer {
+ my ($kl, $k,$l);
+ $kl= can(\&cva_identity);
+ $kl =~ m/^([A-Za-z_]*)(\d*|\=|\*)$/ or die "invalid layer spec";
+ ($k,$l)=($1,$2);
+ $l= $output_layer if $l eq '*';
+ $l= $ctx->{Layer}{Level} if $l =~ m/^\=?$/;
+ $ctx->{Layer}{Kind}= $k;
+ $ctx->{Layer}{Level}= $l;
+ $ctx->{Draw}= layer_draw($k,$l);
+}
+
+sub cmd_part { cmd__obj(Part); }
sub cmd_obj { cmd__obj(1); }
sub cmd_objflip { cmd__obj(-1); }
+
sub cmd__obj ($) {
- my ($flipsignum)=@_;
+ my ($how)=@_;
my ($obj_id, $ctx_save, $pfx, $actual, $formal_id, $formal, $formcv);
- my ($c, $ctx_inobj);
+ my ($part_name, $ctx_inobj, $obj, $id, $newid, $newpt);
+ if ($how eq Part) {
+ $part_name= can(\&cva_idstr);
+ $how= (@al && $al[0] =~ s/^\^//) ? -1 : +1;
+ }
$obj_id= can(\&cva_idstr);
- $actual= can(\&cva_idex);
- $formal_id= can(\&cva_idstr);
+ if (defined $part_name) {
+ $formal_id= can(\&cva_idstr);
+ $actual= cano(\&cva_idex, undef);
+ if (!defined $actual) {
+ $actual= cva_idex("${part_name}_${formal_id}");
+ }
+ } else {
+ $actual= can(\&cva_idex);
+ $formal_id= can(\&cva_idstr);
+ }
$obj= $objs{$obj_id};
dv("cmd__obj ",'$obj',$obj);
die "unknown obj $obj_id" unless $obj;
$formal= $obj->{Loc}{$formal_id};
die "unknown formal $formal_id" unless $formal;
$ctx_save= $ctx;
- newctx();
- $ctx->{Trans}{R}= $flipsignum;
- $ctx->{Trans}{A}= $actual->{A} - $formal->{A}/$flipsignum;
+ newctx($ctx_save);
+ $how *= $ctx_save->{Trans}{R};
+ $ctx->{Trans}{R}= $how;
+ $ctx->{Trans}{A}= $actual->{A} - $formal->{A}/$how;
$formcv= ev_compose({}, $ctx->{Trans},$formal);
$ctx->{Trans}{X}= $actual->{X} - $formcv->{X};
$ctx->{Trans}{Y}= $actual->{Y} - $formcv->{Y};
- $ctx->{InRunObj}= $ctx_save->{InRunObj}."${obj_id}::";
- $ctx->{Draw}{L} =~ s/L//;
-dv("cmd__obj $obj_id ",'$ctx',$ctx);
- {
- local (@al);
- foreach $c (@{ $obj->{CmdLog} }) {
- @al= @$c;
- next if $al[0] eq 'enddefobj';
- cmd__one();
+ if (defined $part_name) {
+ $ctx->{InRunObj}= $ctx_save->{InRunObj}."${part_name}:";
+ } else {
+ $ctx->{InRunObj}= $ctx_save->{InRunObj}."${obj_id}::";
+ }
+ if ($segments[0] =~ m,(.*[^-]+)/,) {
+ $ctx->{SegName}= $1;
+ }
+ $ctx->{DrawMap}= sub {
+ my ($i) = @_;
+ $i= &{ $ctx_save->{DrawMap} }($i);
+ if ($obj->{Part}) {
+ $i =~ s/[LMN]//g;
+ $i =~ s/O/MNO/;
+ } else {
+ $i =~ s/[LM]//g;
+ $i =~ s/N/MN/;
}
+ return $i;
};
- $pfx= cano(\&cva_idstr,'');
+ $ctx->{Draw}= &{ $ctx->{DrawMap} }($ctx_save->{Draw});
+ cmd__runobj($obj_id);
+ if (defined $part_name) {
+ $pfx= $part_name.'_';
+ } else {
+ if (@al && $al[0] eq '=') {
+ $pfx= ''; shift @al;
+ } else {
+ $pfx= cano(\&cva_idstr,undef);
+ }
+ }
+ if (exists $ctx->{SavedSegment}) {
+ @segments= ($ctx->{SavedSegment});
+ }
$ctx_inobj= $ctx;
$ctx= $ctx_save;
- if (length $pfx) {
+ if (defined $pfx) {
foreach $id (keys %{ $ctx_inobj->{Loc} }) {
next if $id eq $formal_id;
$newid= $pfx.$id;
%$newpt= %{ $ctx_inobj->{Loc}{$id} };
}
}
+ if (defined $part_name) {
+ my ($formalr_id, $actualr_id, $formalr, $actualr);
+ while (@al) {
+ die "part results come in pairs\n" unless @al>=2;
+ ($formalr_id, $actualr_id, @al) = @al;
+ if ($actualr_id =~ s/^\-//) {
+ $formalr_id= "-$formalr_id";
+ $formalr_id =~ s/^\-\-//;
+ }
+ {
+ local ($ctx) = $ctx_inobj;
+ $formalr= cva_idex($formalr_id);
+ }
+ $actualr= cva_idnew($actualr_id);
+ %$actualr= %$formalr;
+ }
+ }
}
sub cmd__do {
my ($cmd);
dv("cmd__do $ctx @al ",'$ctx',$ctx);
$cmd= can(\&cva_cmd);
- my ($id,$loc,$io,$ad);
+ my ($lm,$id,$loc,$io,$ad,$draw,$thendrawre);
$io= defined $ctx->{InDefObj} ? "$ctx->{InDefObj}!" : $ctx->{InRunObj};
o("%L cmd $io $cmd @al\n");
$ctx->{LocsMade}= [ ];
- &{ "cmd_$cmd" };
+ {
+ no strict 'refs';
+ &{ "cmd_$cmd" };
+ };
die "too many args" if @al;
- foreach $id (@{ $ctx->{LocsMade} }) {
+ foreach $lm (@{ $ctx->{LocsMade} }) {
+ $id= $lm->{Id};
$loc= $ctx->{Loc}{$id};
+ $loc->{A} += $pi if $lm->{Neg};
$ad= ang2deg($loc->{A});
- ol("%L point $io$id $loc->{X} $loc->{Y} $ad\n");
- if (length $ctx->{Draw}{L}) {
+ ol("%L point $io$id ".loc2dbg($loc)." ($lm->{Neg})\n");
+ $draw= layer_draw($loc->{LayerKind}, $ctx->{Layer}{Level});
+ if ($draw =~ m/[LM]/) {
ol(" gsave\n".
" $loc->{X} $loc->{Y} translate $ad rotate\n");
- if ($ctx->{Draw}{L} =~ m/1/) {
- ol(" 0 $psu_allwidth newpath moveto\n".
- " 0 -$psu_allwidth lineto\n".
+ if ($draw =~ m/M/) {
+ ol(" 0 $allwidthmin newpath moveto\n".
+ " 0 -$allwidthmin lineto\n".
" $lmu_marklw setlinewidth stroke\n");
}
- if ($ctx->{Draw}{L} =~ m/L/) {
- ol(" /s ($id) def\n".
- " lf setfont\n".
- " /sx5 s stringwidth pop\n".
- " 0.5 mul $lmu_txtboxpadx add def\n".
- " -90 rotate 0 $lmu_txtboxoff translate newpath\n".
- " sx5 neg 0 moveto\n".
- " sx5 neg $lmu_txtboxh lineto\n".
- " sx5 $lmu_txtboxh lineto\n".
- " sx5 0 lineto closepath\n".
- " gsave 1 setgray fill grestore\n".
- " $lmu_txtboxlw setlinewidth stroke\n".
- " sx5 neg $lmu_txtboxpadx add $lmu_txtboxtxty\n".
- " moveto s show\n");
+ if ($draw =~ m/L/) {
+ ol(" $lmu_txtboxlw $lmu_txtboxh $lmu_txtboxpadx".
+ " $lmu_txtboxoff ($id) label_in_box\n");
}
ol(" grestore\n");
}
}
}
+sub cmd_showlibrary {
+ my ($obj_id, $y, $x, $ctx_save, $width, $height);
+ my ($max_x, $min_x, $max_y, $min_y, $nxty, $obj, $loc, $pat, $got, $glob);
+ my ($adj);
+ $x=$olu_left; $y=$olu_bottom; undef $nxty;
+ $ctx_save= $ctx;
+ foreach $obj_id (sort keys %objs) {
+ $got= 1;
+ foreach $glob (@al) {
+ $pat= $glob;
+ $got= !($pat =~ s/^\!//);
+ die "bad pat" if $pat =~ m/[^0-9a-zA-Z_*?]/;
+ $pat =~ s/\*/\.*/g; $pat =~ s/\?/./g;
+ last if $obj_id =~ m/^$pat$/;
+ $got= !$got;
+ }
+ next unless $got;
+ $obj= $objs{$obj_id};
+ next unless $obj->{Part};
+ ($min_x, $max_x, $min_y, $max_y) = bbox($obj->{Loc});
+ newctx($ctx_save);
+
+ for (;;) {
+ $width= $max_x - $min_x;
+ $height= $max_y - $min_y;
+ if ($width < $height) {
+ $ctx->{Trans}{A}= 0;
+ $ctx->{Trans}{X}= $x - $min_x;
+ $ctx->{Trans}{Y}= $y - $min_y + $olu_textheight;
+ } else {
+ ($width,$height)=($height,$width);
+ $ctx->{Trans}{A}= 0.5 * $pi;
+ $ctx->{Trans}{X}= $x + $max_y;
+ $ctx->{Trans}{Y}= $y - $min_x + $olu_textheight;
+ }
+ $adj= length($obj_id) * $olu_textallowperc - $width;
+ $adj=0 if $adj<0;
+ $width += $adj;
+ $ctx->{Trans}{X} += 0.5 * $adj;
+ if ($x + $width > $olu_right && defined $nxty) {
+ $x= $olu_left;
+ $y= $nxty;
+ undef $nxty;
+ } elsif ($y + $height > $olu_top && $y > $olu_bottom) {
+ oflushpage();
+ $x= $olu_left; $y= $olu_bottom;
+ undef $nxty;
+ } else {
+ last;
+ }
+ }
+
+ $ctx->{InRunObj}= $ctx_save->{InRunObj}."${obj_id}//";
+ $ctx->{Draw}= $ctx_save->{Draw};
+ cmd__runobj($obj_id);
+ ol(" gsave\n".
+ " /s ($obj_id) def\n".
+ " lf setfont\n ".
+ ($x + 0.5*$width)." ".($y - $olu_textheight)." moveto\n".
+ " s stringwidth pop -0.5 mul 0 rmoveto\n".
+ " s show grestore\n");
+ $x += $width + $olu_gap_x;
+ upd_max(\$nxty, $y + $height + $olu_gap_y + $olu_textheight);
+ }
+ @al= ();
+ $ctx= $ctx_save;
+}
+
sub cmd__one {
cmd__do();
}
-print
- "%!\n".
- " /lf /Courier-New findfont $lmu_marktpt scalefont def\n".
- " $ptscale $ptscale scale\n"
- or die $!;
+o("%!\n".
+ " /lf /Courier-New findfont $lmu_marktpt scalefont def\n".
+ " $ps_page_shift 0 translate 90 rotate\n");
+
+if ($page_x || $page_y) {
+ o(" /Courier-New findfont 15 scalefont setfont\n".
+ " 30 30 moveto (${page_x}x${page_y}) show\n");
+}
+
+o(" -$ps_page_xmul $page_x mul -$ps_page_ymul $page_y mul translate\n".
+ " $ptscale $ptscale scale\n");
+
+o("/label_in_box {\n".
+ '% linewidth $lmu_*boxh $lmu_*padx $lmu_*boxoff (s)'.
+ ' label_in_box => _'."\n".
+ " /s exch def\n".
+ " /boxoff exch def\n".
+ " /padx exch def\n".
+ " /boxh exch def\n".
+ " setlinewidth\n".
+ " lf setfont\n".
+ " /sx5 s stringwidth pop\n".
+ " 0.5 mul padx add def\n".
+ " -90 rotate 0 boxoff translate newpath\n".
+ " sx5 neg 0 moveto\n".
+ " sx5 neg boxh lineto\n".
+ " sx5 boxh lineto\n".
+ " sx5 0 lineto closepath\n".
+ " gsave 1 setgray fill grestore\n".
+ " stroke\n".
+ " sx5 neg padx add $lmu_txtboxtxty\n".
+ " moveto s show\n".
+ "} def\n");
newctx();
-
+
+open DEBUG, ($debug ? ">&2" : ">/dev/null") or die $!;
+
+if ($debug) {
+ select(DEBUG); $|=1;
+ select(STDOUT); $|=1;
+}
+
+$ctx->{Draw}= '';
+$ctx->{SegName}= '';
+
+@al= qw(layer 5);
+cmd__one();
+
while (<>) {
next if m/^\s*\#/;
chomp; s/^\s+//; s/\s+$//;
@al= split /\s+/, $_;
next unless @al;
print DEBUG "=== @al\n";
+ last if $al[0] eq 'eof';
push @{ $ctx->{CmdLog} }, [ @al ] if exists $ctx->{CmdLog};
cmd__one();
}
-print $o, $ol, " showpage\n"
- or die $!;
+{
+ my ($min_x, $max_x, $min_y, $max_y) = bbox($ctx->{Loc});
+ my ($bboxstr);
+ if (defined $min_x) {
+ $bboxstr= sprintf("width %.2d (%.2d..%2.d)\n".
+ "height %.2d (%.2d..%2.d)\n",
+ $max_x - $min_x, $min_x, $max_x,
+ $max_y - $min_y, $min_y, $max_y);
+ } else {
+ $bboxstr= "no locs, no bbox\n";
+ }
+ if (!$quiet) { print STDERR $bboxstr; }
+ $bboxstr =~ s/^/\%L bbox /mg;
+ o($bboxstr) or die $!;
+
+ if ($scale < 1.5) {
+ my ($tick_x, $tick_y, $ticklen);
+ $ticklen= 10;
+ printf(" gsave 0.5 setgray 0.33 setlinewidth\n".
+ " /regmark {\n".
+ " newpath moveto\n".
+ " -%d 0 rmoveto %d 0 rlineto\n".
+ " -%d -%d rmoveto 0 %d rlineto stroke\n".
+ " } def\n",
+ $ticklen, $ticklen*2, $ticklen, $ticklen, $ticklen*2)
+ or die $!;
+ for ($tick_x= $min_x; $tick_x < $max_x; $tick_x += 150) {
+ for ($tick_y= $min_y; $tick_y < $max_y; $tick_y += 150) {
+ printf(" %f %f regmark\n",
+ $tick_x, $tick_y)
+ or die $!;
+ }
+ }
+ printf(" grestore\n")
+ or die $!;
+ }
+}
+
+oflushpage();
~ijackson / trains.git / blobdiff