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Fix of https://github.com/prusa3d/Slic3r/issues/20

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Slicing preview incorrect in terms of visible solid layers
This commit is contained in:
bubnikv 2016-11-08 15:33:13 +01:00
parent 443e900e07
commit b8590180d8
2 changed files with 17 additions and 18 deletions
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22
lib/Slic3r/GUI/3DScene.pm
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@ -978,32 +978,30 @@ sub draw_volumes {
}
my $qverts_begin = 0;
my $qverts_end = defined($volume->qverts) ? $volume->qverts->size() : 0;
my $qverts_end = defined($volume->qverts) ? $volume->qverts->size() : 0;
my $tverts_begin = 0;
my $tverts_end = defined($volume->tverts) ? $volume->tverts->size() : 0;
if ($volume->range && $volume->offsets && @{$volume->offsets}) {
my $tverts_end = defined($volume->tverts) ? $volume->tverts->size() : 0;
my $n_offsets = ($volume->range && $volume->offsets) ? scalar(@{$volume->offsets}) : 0;
if ($n_offsets) {
# The Z layer range is specified.
# First test whether the Z span of this object is not out of ($min_z, $max_z) completely.
my ($min_z, $max_z) = @{$volume->range};
next if ($volume->offsets->[0] > $max_z || $volume->offsets->[-3] < $min_z);
# Then find the lowest layer to be displayed.
my $i = 0;
while ($i < @{$volume->offsets} && $volume->offsets->[$i] < $min_z) {
while ($i < $n_offsets && $volume->offsets->[$i] < $min_z) {
$i += 3;
}
# This shall not happen.
next if ($i == @{$volume->offsets});
next if ($i == $n_offsets);
# Remember start of the layer.
if ($i >= 3) {
# Get end of the preceding layer, which is the start of the current layer.
$qverts_begin = $volume->offsets->[$i-2];
$tverts_begin = $volume->offsets->[$i-1];
}
$qverts_begin = $volume->offsets->[$i+1];
$tverts_begin = $volume->offsets->[$i+2];
# Some layers are above $min_z. Which?
while ($i < @{$volume->offsets} && $volume->offsets->[$i] <= $max_z) {
while ($i < $n_offsets && $volume->offsets->[$i] <= $max_z) {
$i += 3;
}
if ($i < @{$volume->offsets}) {
if ($i < $n_offsets) {
$qverts_end = $volume->offsets->[$i+1];
$tverts_end = $volume->offsets->[$i+2];
}