3DPrinting/PrusaSlicer-NonPlainar
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Because of numerical instability, lower_bound() was not including a layer having z == 0.8 even if the facet's min_z == 0.8. #1672

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Alessandro Ranellucci 2014-01-12 16:01:14 +01:00
parent bac743a602
commit 69f1f65a8b
1 changed files with 2 additions and 2 deletions
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4
xs/src/TriangleMesh.cpp
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@ -276,8 +276,8 @@ TriangleMesh::slice(const std::vector<double> &z, std::vector<Polygons>* layers)
// find layer extents
std::vector<double>::const_iterator min_layer, max_layer;
min_layer = std::lower_bound(z.begin(), z.end(), min_z); // first layer whose slice_z is >= min_z
max_layer = std::upper_bound(z.begin() + (min_layer - z.begin()), z.end(), max_z) - 1; // last layer whose slice_z is <= max_z
min_layer = std::lower_bound(z.begin(), z.end(), min_z - EPSILON); // first layer whose slice_z is >= min_z
max_layer = std::upper_bound(z.begin() + (min_layer - z.begin()), z.end(), max_z + EPSILON) - 1; // last layer whose slice_z is <= max_z
#ifdef SLIC3R_DEBUG
printf("layers: min = %d, max = %d\n", (int)(min_layer - z.begin()), (int)(max_layer - z.begin()));
#endif