6 use Math::GSL::Vector qw/:all/;
7 use Math::GSL::Matrix qw/:all/;
9 use Math::GSL::BLAS qw/:all/;
10 use Math::GSL::CBLAS qw/:all/;
11 use Math::GSL::Machine qw/:all/;
15 BEGIN { unshift @INC, qw(.); }
20 our %vxname2pos; # $vxname2pos{VXNAME} = Math::GSL::Vector
22 sub TAU { M_PI * 2.0; }
23 sub MM2PT { 72.0 / 25.4; }
27 # ----- region names from plag, incl. reverse mapping -----
31 sub prep_region_rmap () {
32 foreach my $rn (keys %region) {
33 my $prs = plag_prs($rn);
34 die if $prs2region{$prs};
35 $prs2region{$prs} = $rn;
38 # bodgery for the sea and land
39 $prs2region{'NZ | L'} = 'NZ';
40 $prs2region{'L | NZ'} = 'NZ';
43 our $sre = qr{(?:(\")|(?=\w))(.*)\1$}; # 2 captures, $2 is the name
45 sub prs2r ($) { $prs2region{$_[0]} // confess "@_ ?" }
46 sub prs2rr ($) { $region{prs2r($_[0])} }
48 #----- file reader for plag output -----
52 # $region{NAME}{Adj}[]{Ends}[]{VxName}
53 # $region{NAME}{Adj}[]{Ends}[]{Pos}
54 # $region{NAME}{Polygon}{Pos}
55 # $region{NAME}{Special}
58 # $region{NAME}{Adj}[]{Ends}[]{Adjoins}
59 # $region{NAME}{Polygon}{Adjoins}
60 # which should be ignored
62 open P, "<", $facesf or die $!;
63 while (<P>) { last if m/^\&faces$/; }
66 my $process_rr = sub {
68 if ($rr->{Name} eq 'NZ') {
69 # We combined L and NZ; now we must split them again
70 # in fact, we just throw away L entirely.
71 # Here, when processing NZ, we keep only vertices that
74 my $evxname = $_->{VxName};
75 my @eregions = split / \| ?/, $evxname;
76 grep { $_ eq 'NZ' } @eregions
79 $rr->{Polygon} = [ @edges ];
80 if ($rr->{Name} ne 'NZ') {
81 for my $ei (0..$#edges) {
82 my $ej = $ei % @edges;
83 if (!defined $last_ai) {
85 for my $ai (0..$#{ $rr->{Adj} }) {
86 next unless $rr->{Adj}[$ai]{Name} eq $edges[$ei]{Adjoins};
89 confess $edges[$ei]{Adjoins}.' ?' unless defined $last_ai;
91 my $ai = ($last_ai-1+@edges) % @edges;
93 my $adj = $rr->{Adj}[$ai];
94 confess Dumper($rr, \@edges, $ei, $ej, $adj, $last_ai, $ai)." ?"
95 unless $adj->{Name} eq $edges[$ei]{Adjoins};
98 $adj->{Ends}[$endi] = $edges[ ($ei + $endi) % @edges ];
107 $!=0; $_=<P> // confess $!;
111 $process_rr->() if $rr;
112 $rr= prs2rr($new_face);
113 } elsif (m/^\s+$sre$/) {
116 push @edges, { VxName => $vxname };
117 } elsif (m/^\s+\^adjoins\s+$sre$/) {
118 $edges[-1]{Adjoins} = prs2r($2);
119 } elsif (m/^\s+\^\@([-e.0-9]+)\,([-e.0-9]+)$/) {
120 my $pos = mkvec($1,$2);
121 confess unless defined $vxname;
122 $edges[-1]{Pos} = $pos;
123 $vxname2pos{$vxname} = $pos;
128 $region{$_}{Special} = 1 foreach qw(NZ L);
131 #----- geometry mangling -----
133 sub calculate_centres () {
135 # $region{NAME}{Centre}
136 foreach my $rr (values %region) {
137 next if $rr->{Special};
138 my $poly = $rr->{Polygon};
139 my $sum = Math::GSL::Vector->new(2);
140 $sum += $_->{Pos} foreach @$poly;
141 $rr->{Centre} = $sum * (1.0 / @$poly);
145 sub for_each_pos ($) {
148 my ($pr,$rr,$why) = @_;
149 return unless defined $$pr;
152 foreach my $rr (values %region) {
153 $call->( \ $rr->{Centre}, $rr, $rr->{Name}." C" );
154 foreach my $vertex (@{ $rr->{Polygon} }) {
155 $call->( \ $vertex->{Pos}, $rr, $rr->{Name}." | ".$vertex->{Adjoins} );
163 sprintf "%g,%g", $v->get(0), $v->get(1);
166 sub mkvec ($$) { Math::GSL::Vector->new(\@_) }
168 sub transform_coordinates () {
169 # Adjusts coordinates in graph to be [0,0] .. top right (scaled)
170 # until it's all in PostScript points
171 my @or = map { $region{$_}{Centre} } @{ $c{OrientRegions} };
172 my $dir = $or[1] - $or[0];
173 my $theta = atan2 $dir->get(1), $dir->get(0);
174 my $rotateby = (90. - $c{OrientBearing}) * ((TAU)/360.) - $theta;
175 my $s = sin($rotateby);
176 my $c = cos($rotateby);
177 my $transform = Math::GSL::Matrix->new(2,2);
178 $transform->set_row(0, [ $c, -$s ]);
179 $transform->set_row(1, [ $s, $c ]);
180 print STDERR "rotate was=",prvec($dir)," theta=$theta",
181 " rotateby=$rotateby s=$s c=$c\n";
183 foreach my $topend (qw(0 1)) {
184 my $v = $topend ? -$GSL_DBL_MAX : $GSL_DBL_MAX;
185 $lims[$topend] = mkvec($v,$v);
188 my ($pr, $rr, $why) = @_;
189 my $y = Math::GSL::Vector->new(2);
190 gsl_blas_dgemv($CblasNoTrans,
191 1.0, $transform->raw,
195 #print STDERR "gsl_blas_dgemv ",prvec($$pr)," => ",prvec($y),"\n";
196 gsl_blas_dcopy($y->raw, $$pr->raw)
198 foreach my $topend (qw(0 1)) {
199 foreach my $xy (qw(0 1)) {
200 my $now = $y->get($xy);
201 my $lim = $lims[$topend]->get($xy);
202 #print STDERR "?set $topend $xy $now $lim\n";
203 next if $topend ? ($now <= $lim) : ($now >= $lim);
204 $lims[$topend]->set([$xy], [$now]);
205 #print STDERR "set $topend $xy $now\n";
209 print STDERR "lims ",prvec($lims[0])," .. ",prvec($lims[1]),"\n";
210 my $translate = -$lims[0];
211 print STDERR "translate ",prvec($translate),"\n";
212 my $scale = $c{GraphScale} * MM2PT;
215 gsl_vector_add($$pr->raw, $translate->raw) and confess;
216 gsl_vector_scale($$pr->raw, $scale) and confess;
218 $mid = ($lims[1] - $lims[0]) * 0.5;
222 my $poly = $region{NZ}{Polygon};
224 foreach my $v (@$poly) {
225 $occurs{$v->{VxName}}++
227 foreach my $v (@$poly) {
228 $v->{NZ_Occurs} = $occurs{$v->{VxName}};
230 print STDERR " nz ".(scalar @$poly)."\n";
233 $poly->[($ei+@$poly) % @$poly]{NZ_Occurs} > 1
235 for my $ei (0..$#$poly) {
236 next if $occurs_m->($ei);
237 next unless $occurs_m->($ei-1);
238 next unless $occurs_m->($ei+1);
239 print STDERR " nz would adjust $poly->[$ei]{VxName}\n";
240 # adjust coord outwards
242 for my $ei (0..$#$poly) {
243 next unless $occurs_m->($ei);
244 print STDERR " nz occurs_m $ei $poly->[$ei]{VxName}\n";
245 next unless $occurs_m->($ei-1);
246 my $dleft = mkvec(-1000,0);
247 foreach my $which (0,-1) {
248 my $ej = ($ei + $which + @$poly) % @$poly;
249 my $ek = ($ei + +1 + 3*$which + @$poly) % @$poly;
250 my $posj = \ $poly->[$ej]{Pos};
251 my $posk = \ $poly->[$ek]{Pos};
252 my $dout = $$posk - $$posj;
253 print STDERR " nz adj j=$ej ",prvec($$posj)," $poly->[$ej]{VxName}\n";
254 print STDERR " nz adj k=$ek ",prvec($$posk)," $poly->[$ek]{VxName}\n";
255 $$posj = $$posj + $dleft + $dout*10;
256 $$posk = $$posk + $dout*10;
263 sprintf "%20.6f %20.6f", $pos->get(0),$pos->get(1)
268 o("% $rr->{Name}\n");
271 foreach my $vertex (@{ $rr->{Polygon} }) {
272 my $pos = $vertex->{Pos};
273 o(sprintf " %s %s\n", psvec($pos), $xto);
281 confess unless defined $spec;
283 (map { sprintf "%.6f ", hex($_) / 15.0 }
290 o(" 0.52 dup scale\n"); # xxx bodge, want boundingbox or something
294 o("clippath ", pscolour($c{Colours}{land}), " fill\n");
295 foreach my $rr (values %region) {
296 next if $rr->{Name} eq 'L';
298 o(" ", pscolour($c{Colours}{$rr->{Colour}}), " eofill\n");
303 o("5 setlinewidth 1 setlinejoin 0 setgray\n");
304 foreach my $rr (values %region) {
305 next if $rr->{Name} eq 'L';
313 o(" /Helvetica-Bold findfont $sz scalefont setfont\n");
314 foreach my $rr (values %region) {
315 next if $rr->{Special};
317 my $words = $rr->{DisplayName};
318 my $pos = $rr->{Centre} + mkvec( 0, 0.5 * $sz * @$words );
319 foreach my $word (@$words) {
320 $pos += mkvec(0,-$sz);
321 o(" ", psvec($pos), " moveto");
324 ($word) dup stringwidth pop % word xw
325 -0.5 mul 0 rmoveto % word
332 % 0 setgray 0 10 359 { } bind for
333 1 setgray 0 0 words pop pop
338 #----- main program -----
340 ($facesf, @ARGV) = @ARGV or die;
345 transform_coordinates();
353 print STDERR Dumper(\%region) if $ENV{'GENERATE_BOARD_DUP'};
356 # cperl-indent-level: 2