X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=poster-tube-lid-parametric.scad.pl;h=64d4d00ebe9f5b472789f5411155e6457b95d8ec;hp=c4d105cb415f53bc9e0db9cf390e8a0eed6e464b;hb=c827170d69910df04bc8b620f2ed53ed5164e633;hpb=06123bfe46174b100cfedf21df117e77ab4ab9ae

diff --git a/poster-tube-lid-parametric.scad.pl b/poster-tube-lid-parametric.scad.pl
index c4d105c..64d4d00 100755
--- a/poster-tube-lid-parametric.scad.pl
+++ b/poster-tube-lid-parametric.scad.pl
@@ -169,20 +169,29 @@ our @points;
 our %point_indices;
 our @triangles;
 
+my @ipts;
+my @jpts;
+
+my $qi;
+my $qj;
+
 sub triangle {
     my @pixs;
     foreach my $pval (@_) {
 	my $pix = $point_indices{$pval}
 	    //= ((push @points, $pval), $#points);
-	return if grep { $pix eq $_ } @pixs;
+	if (grep { $pix eq $_ } @pixs) {
+	    print "// elide @{ $ipts[$qi] } @{ $jpts[$qj] }\n";
+	    return;
+	}
 	push @pixs, $pix;
     }
-    push @triangles, \@pixs;
+    push @triangles, [ $qi,$qj, \@pixs ];
 }
 
 sub make_sheet () {
-    my @ipts = get_sections_ptvals(@i_sections);
-    my @jpts = get_sections_ptvals(@j_sections);
+    @ipts = get_sections_ptvals(@i_sections);
+    @jpts = get_sections_ptvals(@j_sections);
     my @sheet;
     foreach my $ipt (@ipts) {
 	my @row = ();
@@ -191,9 +200,9 @@ sub make_sheet () {
 	}
 	push @sheet, \@row;
     }
-    foreach (my $qi=0; $qi<$#ipts; $qi++) { # i direction does not wrap
+    foreach ($qi=0; $qi<$#ipts; $qi++) { # i direction does not wrap
 	my $qi2 = $qi+1;
-	foreach (my $qj=0; $qj<@jpts; $qj++) { # j direction does wrap
+	foreach ($qj=0; $qj<@jpts; $qj++) { # j direction does wrap
 	    my $qj2 = ($qj+1) % @jpts;
 	    my $p0 = $sheet[$qi][$qj];
 	    triangle($p0, $sheet[$qi2][$qj], $sheet[$qi2][$qj2]);
@@ -211,7 +220,9 @@ sub write_out () {
     print "module ImplHeadCup(){ polyhedron(points=[\n" or die $!;
     print pv($_),",\n" or die $! foreach @points;
     print "],faces=[\n" or die $!;
-    print pv($_),",\n" or die $! foreach @triangles;
+    foreach (@triangles) {
+	print pv($_->[2]),", // @{ $ipts[$_->[0]] } @{ $jpts[$_->[1]] }\n" or die $!;
+    }
     print "],convexity=10); }\n" or die $!;
     print <<END or die $!;
 implheadcup_large_dia = $large_dia;