Optimized and improved rectilinear fill.

xs/src/libslic3r/Fill/FillRectilinear2.hpp

@@ -0,0 +1,27 @@
+#ifndef slic3r_FillRectilinear2_hpp_
+#define slic3r_FillRectilinear2_hpp_
+
+#include "../libslic3r.h"
+
+#include "FillBase.hpp"
+
+namespace Slic3r {
+
+class Surface;
+
+class FillRectilinear2 : public FillWithDirection
+{
+public:
+    virtual ~FillRectilinear2() {}
+    virtual Polylines fill_surface(const Surface *surface, const FillParams &params);
+
+protected:
+	coord_t _min_spacing;
+	coord_t _line_spacing;
+	// distance threshold for allowing the horizontal infill lines to be connected into a continuous path
+	coord_t _diagonal_distance;
+};
+
+}; // namespace Slic3r
+
+#endif // slic3r_FillRectilinear2_hpp_