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SLA archive import with miniz, marching square bugfixes

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Fix compilation on Windows


Fix array subscript out of range error in MarchingSquares


Fix normals of mesh constructed from slices


Improve performance of mesh construction from slices
This commit is contained in:
tamasmeszaros 2020-04-23 19:12:07 +02:00
parent 247fca6d55
commit 217477a9ff
17 changed files with 690 additions and 373 deletions
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9
src/libslic3r/SLA/RasterToPolygons.cpp
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@ -33,15 +33,15 @@ template<class Fn> void foreach_vertex(ExPolygon &poly, Fn &&fn)
for (auto &p : h.points) fn(p);
}
ExPolygons raster_to_polygons(const RasterGrayscaleAA &rst, float accuracy)
ExPolygons raster_to_polygons(const RasterGrayscaleAA &rst, Vec2i windowsize)
{
size_t rows = rst.resolution().height_px, cols = rst.resolution().width_px;
if (rows < 2 || cols < 2) return {};
Polygons polys;
size_t w_rows = (2 + rows / 8) - size_t(accuracy * rows / 8);
size_t w_cols = std::max(size_t(2), w_rows * cols / rows);
long w_rows = std::max(2l, long(windowsize.y()));
long w_cols = std::max(2l, long(windowsize.x()));
std::vector<marchsq::Ring> rings =
marchsq::execute(rst, 128, {w_rows, w_cols});
@ -49,6 +49,9 @@ ExPolygons raster_to_polygons(const RasterGrayscaleAA &rst, float accuracy)
polys.reserve(rings.size());
auto pxd = rst.pixel_dimensions();
pxd.w_mm = (rst.resolution().width_px * pxd.w_mm) / (rst.resolution().width_px - 1);
pxd.h_mm = (rst.resolution().height_px * pxd.h_mm) / (rst.resolution().height_px - 1);
for (const marchsq::Ring &ring : rings) {
Polygon poly; Points &pts = poly.points;
pts.reserve(ring.size());