X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=distort-stl;h=68290c410a6ae4738d680d6409abd8f3464c008e;hp=d893057b135fe601de0d09725dcf1a89d2c19b16;hb=77c39f4394b1ede3825b88234a0d9832cc6d3b78;hpb=2aac4e057110032839bf1245c88fec48c33094fc

diff --git a/distort-stl b/distort-stl
index d893057..68290c4 100755
--- a/distort-stl
+++ b/distort-stl
@@ -32,7 +32,7 @@ use Data::Dumper;
 
 sub TAU () { M_PI * 2; }
 
-our $debug = $ENV{DISTORT_DEBUG};
+our $debug = $ENV{DISTORT_DEBUG} // 0 ;
 
 my $ps = $ENV{DISTORT_PS};
 if ($ps) {
@@ -180,7 +180,7 @@ sub project_cylinder_tri {
     my $radius = $project_cylinder_radius;
 
     my @ot;
-    foreach my $p (@$t) {
+    foreach my $p (@$t[0..2]) {
 	my ($x,$y,$z) = @$p;
 	my $r = $radius - $y;
 	my $theta = $x / $radius;
@@ -188,6 +188,7 @@ sub project_cylinder_tri {
 		    -$r * cos($theta),
 		    $z ];
     }
+    push @ot, $t->[3].'P';
     append_triangle \@ot;
 }
 
@@ -275,8 +276,8 @@ print "solid distort-stl\n";
 foreach my $t (@$triangles) {
     print "  facet normal 0 0 0\n";
     print "    outer loop\n";
-    die unless @$t==3;
-    foreach my $p (@$t) {
+    die unless @$t==4;
+    foreach my $p (@$t[0..2]) {
 	die unless @$p==3;
 	print "      vertex";
 	printf " %.18g", $_ foreach @$p;