3 # Reads the special comments in the subsegment encoding output from
4 # layout, determines the segment graph, and outputs a description of
9 # We read the segenco.ps and each time we find a `%L segmentpart'
10 # comment we add it to an annotated graph we construct. Each node in
11 # the annotated graph is a tuple consisting of a loc and range of
12 # layer levels. Each edge is a segment part from a %L comment. Each
13 # node has a `front' and a `back', and each edget attach either to
16 # Only segment parts with certain layer kinds are processed: by
17 # default, only the empty layer kind.
19 # When a loc is found in the input, as one end of a segmentpart, it
20 # is considered identical to a existing node (if its details are
21 # sufficiently similar) or creates a new node (if its details are
22 # sufficiently different). If the segmentpart's end is considered
23 # identical to an existing node then the existing node's layer level
24 # range is extended, but the existing node's X Y and A are not
27 # A loc and layer level are compared with a node as follows:
29 # The difference between each of the loc's details and the node's
30 # details is computed. If any of the differences is at least the
31 # min clearance, then the loc/layerb is a new node. Otherwise, all
32 # of the differences must be within the max tolerance and the
33 # loc/layer is the same as the node (coming out of the back if the
34 # 180deg was added to make the angle difference). Otherwise it is
37 # The detail differences are:
38 # Position difference: horizontal distance between loc and node
39 # Angle difference: difference betwen loc's and node's A, or
40 # difference minus 180deg between loc's and node's A, whichever
41 # is the smaller (both reduced mod 360deg to value with
42 # smallest magnitude).
43 # Level difference: 0 if layer level is within node's range
44 # or distance by which it is outside that range.
49 $conf{MinClearLayer}= 6;
50 $conf{MaxTolerLayer}= 4;
51 $conf{MinClearDist}= 0.5;
52 $conf{MaxTolerDist}= 0.05;
53 $conf{MinClearAngle}= 5.0;
54 $conf{MaxTolerAngle}= 0.5;
55 $conf{LayerKinds}= ','; # comma-separated list as for split /\,/, ..., -1;
56 $conf{EvenUnknownSegments}= 0;
59 @layerkinds= split /\,/, $conf{LayerKinds}, -1;
67 # $nodes[]{"Edges$back"}[] = [ \$edges[], $far ]
70 # $edges[]{"Node$far"}= [ \$nodes[], $back ]
72 # $edges[]{SubSegSpec}
75 # $segments{$segname}{MovFeats}[$movfeatnum]{Name}
76 # $segments{$segname}{MovFeats}[$movfeatnum]{Positions}
77 # $segments{$segname}{MovFeatMap}{$movfeatname}= $movfeatnum
80 print "/* $_[0] */\n";
83 sub sqr ($) { return $_[0]*$_[0]; }
86 my ($lni,$isdest,$l,$x,$y,$a) = @_;
87 my ($any_outside_toler, $any_outside_clear, $updlayer);
88 my ($ni, $node, %diff, $back, $d, $k);
90 $diff{Layer}= (($d = $l - $node->{LayerMin}) < 0 ? $d :
91 ($d = $l - $node->{LayerMax}) > 0 ? $d :
93 $diff{Dist}= sqrt(sqr($x - $node->{X}) +
94 sqr($y - $node->{Y}));
95 $diff{Angle}= $a - $node->{A}; # <-360,360>
96 if ($diff{Angle} < 0) { $diff{Angle} += 360; } # [0,360>
97 $back= $diff{Angle} >= 90 && $diff{Angle} < 270; # $back <=> [90,270>
98 $back= !!$isdest != !!$back; # logical xor
100 if ($back) { $diff{Angle} -= 180; } # [0,90> or [270,360>
101 if ($diff{Angle} > 180) { $diff{Angle} -= 360; } # [-90,90>
102 $any_outside_clear= 0;
103 $any_outside_toler= 0;
104 foreach $k (keys %diff) {
105 if (abs($diff{$k}) >= $conf{"MinClear$k"}) {
106 $any_outside_clear=1; last;
107 } elsif (abs($diff{$k}) <= $conf{"MaxToler$k"}) {
109 $any_outside_toler=1;
112 if ($any_outside_clear) {
113 } elsif ($any_outside_toler) {
114 die ("mismatch/clash:\n".
115 " $lni has L=$l XY=$x,$y A=$a\n".
116 " $node->{LineInfo} has ".
117 "L=$node->{LayerMin}..$node->{LayerMax}".
118 " XY=$node->{X},$node->{Y} A=$node->{A}\n ");
120 $updlayer= ($diff{Layer} < 0 ? "Min" :
121 $diff{Layer} > 0 ? "Max" :
124 $node->{"Layer$updlayer"}= $l;
125 $node->{LineInfo}.="($l<-$lni)";
127 comment("nodulated $lni ex.$node/$back");
128 return ($node,$back);
131 $node= { X => $x, Y => $y, A => $a,
132 LayerMin => $l, LayerMax => $l, LineInfo => $lni };
135 comment("nodulated $lni new$node/$back");
136 return ($node,$back);
140 my ($layerkind, $level, $subsegspec, $numbers, @numbers, $dist);
141 my ($node,$back,$far,@nodeinfo,@endnums,$edge);
143 next unless m/^\%L /;
144 die unless m/^\%L (\w+)\b/;
145 next unless $1 eq 'segmentpart';
146 die unless m/^\%L segmentpart ([A-Za-z_]*)(\d+) (\S+) ([-.eE0-9 ]+)$/;
147 ($layerkind, $level, $subsegspec, $numbers) = ($1,$2,$3,$4);
148 next unless grep { $layerkind eq $_ } @layerkinds;
149 next unless $subsegspec =~ m,^[^/], or $conf{EvenUnknownSegments};
150 @numbers = map { $_ + 0 } split / /, $numbers;
151 $dist= shift @numbers;
152 @numbers == 6 or die;
153 $edge= { Dist => $dist, SubSegSpec => $subsegspec };
154 for ($far=0; $far<2; $far++) {
155 @endnums= @numbers[($far*3)..($far*3+2)];
156 ($node,$back)= find_node("$.:$far",$far,$level,@endnums);
157 $edge->{"Node$far"}= [ $node, $back ];
158 push @{ $node->{"Edges$back"} }, [ $edge, $far ];
165 print join('',@_) or die $!;
169 my ($kind,$ref) = @_;
172 return lc $ref.lc $kind;
177 my ($edge,$end) = @$edgeend;
179 $endnum= $end ^ !!($edge->{SubSegSpec} =~ m/^\-/);
180 return pr(Edge,$edge).".ends[$endnum]";
185 my ($segname, $movfeatpos, $movfeat, $movpos);
186 my ($movfeatnum, $movfeatref);
188 $sss= $edge->{SubSegSpec};
189 $sss =~ m,^\-?(\w*)/(([A-Za-z]*)(\d*))$, or die "$sss ?";
190 ($segname, $movfeatpos, $movfeat, $movpos) = ($1,$2,$3,$4);
191 if (!exists $segments{$segname}) {
192 $segments{$segname}= {
193 MovFeatMap => { '' => 0 },
194 MovFeats => [ { Name => '', Positions => 1 } ]
197 $movfeatnum= $segments{$segname}{MovFeatMap}{$movfeat};
198 if (!defined $movfeatnum) {
199 $movfeatnum= @{ $segments{$segname}{MovFeats} };
200 push @{ $segments{$segname}{MovFeats} },
201 { Name => $movfeat, Positions => 0 };
202 $segments{$segname}{MovFeatMap}{$movfeat}= $movfeatnum;
204 $movfeatref= $segments{$segname}{MovFeats}[$movfeatnum];
205 if (length $movfeat && $movpos >= $movfeatref->{Positions}) {
206 $movfeatref->{Positions}= $movpos + 1;
212 my ($node, $edge, $i, $side, $sideedges);
213 my ($end, $endnum, $sss, $reverse, $nodeside, $connectnum, $j, $edgeend);
214 my ($segname, $segment, $movfeats, $movfeat, $delim);
215 my ($movfeatpos, $movpos);
217 o("#include \"graph-data.h\"\n");
218 for $node (@nodes) { o("static Node ",pr(Node,$node),";\n"); }
219 for $edge (@edges) { o("static Edge ",pr(Edge,$edge),";\n"); }
221 for $segname (keys %segments) {
222 $segment= $segments{$segname};
223 $movfeats= $segment->{MovFeats};
224 o("static MovFeat movfeats_${segname}[];\n");
225 o("static Segment segment_$segname= {");
227 o(" ",scalar(@$movfeats),", movfeats_$segname");
229 o("static MovFeat movfeats_${segname}[]= {");
231 for $movfeat (@$movfeats) {
233 o(" { &segment_$segname, ");
234 o(length $movfeat->{Name} ? "\"$movfeat->{Name}\"" : 0);
235 o(", ", $movfeat->{Positions}+0);
242 for ($i=0; $i<@nodes; $i++) {
244 o("static Node ",pr(Node,$node),"= { \n");
245 o(" ".($i>0 ? '&'.pr(Node,$nodes[$i-1]) : '0').
246 ", ".($i<$#nodes ? '&'.pr(Node,$nodes[$i+1]) : '0'));
249 for ($side=0; $side<2; $side++) {
250 o("$delim\n { &".pr(Node,$node).", $side,");
251 $sideedges= $node->{"Edges$side"};
252 if (defined $sideedges && @$sideedges) {
254 '&'.pr_edgeend($sideedges->[0]),
256 '&'.pr_edgeend($sideedges->[$#$sideedges]));
267 o("static Edge ",pr(Edge,$edge),"= {\n");
268 o(" $edge->{Dist}, ");
269 $sss= $edge->{SubSegSpec};
270 $reverse= !!($sss =~ s/^\-//);
271 if ($reverse) { o("/*reverse*/ "); }
272 $sss =~ m,^(\w*)/(([A-Za-z]*)(\d*))$, or die;
273 ($segname, $movfeatpos, $movfeat, $movpos) = ($1,$2,$3,$4);
274 o("&movfeats_${segname}[",
275 $segments{$segname}{MovFeatMap}{$movfeat},
277 (length $movfeat ? $movpos : 0),
280 for ($endnum=0; $endnum<2; $endnum++) {
281 $end= $endnum ^ $reverse;
283 $nodeside= $edge->{"Node$end"};
284 $node= $nodeside->[0]; $side= $nodeside->[1];
285 $sideedges= $node->{"Edges$side"};
287 for ($j=0; $j<@$sideedges; $j++) {
288 $edgeend= $sideedges->[$j];
289 if ($edgeend->[0] == $edge &&
290 $edgeend->[1] == $end) {
291 die if defined $connectnum;
295 die unless defined $connectnum;
296 o(" ".($connectnum > 0 ?
297 '&'.pr_edgeend($sideedges->[$connectnum-1]) : '0'),
298 ", ".($connectnum < $#$sideedges ?
299 '&'.pr_edgeend($sideedges->[$connectnum+1]) : '0'));
300 o(",\n &".pr(Edge,$edge),", $end, ",
301 "&".pr(Node,$node).".sides[$side]");
308 o("Node *nodes_head= ",(@nodes ? '&'.pr(Node,$nodes[0]) : 0),";\n");
309 o("Node *nodes_tail= ",(@nodes ? '&'.pr(Node,$nodes[$#nodes]) : 0),";\n");
312 o("/*autogenerated - do not edit*/\n\n");
318 # ($pts[0]{X}, $pts[0]{Y}, $pts[0]{A},
319 # $pts[1]{X}, $pts[1]{Y}, $pts[1]{A}) =
322 #(\w+(?:(?:\/([A-Za-z]+)(\d+))?)?)