Renamed FillRectilinear.cpp,h to FillLine.cpp,h

src/libslic3r/Fill/FillLine.hpp

@@ -0,0 +1,49 @@
+#ifndef slic3r_FillRectilinear_hpp_
+#define slic3r_FillRectilinear_hpp_
+
+#include "../libslic3r.h"
+
+#include "FillBase.hpp"
+
+namespace Slic3r {
+
+class Surface;
+
+class FillLine : public Fill
+{
+public:
+    Fill* clone() const override { return new FillLine(*this); };
+    ~FillLine() override = default;
+
+protected:
+	void _fill_surface_single(
+	    const FillParams                &params, 
+	    unsigned int                     thickness_layers,
+	    const std::pair<float, Point>   &direction, 
+	    ExPolygon    		             expolygon,
+	    Polylines                       &polylines_out) override;
+
+	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;
+	// only for line infill
+	coord_t _line_oscillation;
+
+	Line _line(int i, coord_t x, coord_t y_min, coord_t y_max) const {
+		coord_t osc = (i & 1) ? this->_line_oscillation : 0;
+		return Line(Point(x - osc, y_min), Point(x + osc, y_max));
+	}
+
+	bool _can_connect(coord_t dist_X, coord_t dist_Y)
+	{
+	    coord_t TOLERANCE = 10 * SCALED_EPSILON;
+    	return (dist_X >= (this->_line_spacing - this->_line_oscillation) - TOLERANCE)
+        	&& (dist_X <= (this->_line_spacing + this->_line_oscillation) + TOLERANCE)
+        	&& (dist_Y <= this->_diagonal_distance);
+    }
+};
+
+}; // namespace Slic3r
+
+#endif // slic3r_FillRectilinear_hpp_