Fixes after the merge of changes by @alexrj.

xs/src/libslic3r/Slicing.hpp

@@ -0,0 +1,44 @@
+// Based on implementation by @platsch
+
+#ifndef slic3r_Slicing_hpp_
+#define slic3r_Slicing_hpp_
+
+#include "libslic3r.h"
+
+namespace Slic3r
+{
+
+struct SlicingParameters
+{
+	SlicingParameters() { memset(this, 0, sizeof(SlicingParameters)); }
+
+	// The regular layer height, applied for all but the first layer, if not overridden by layer ranges
+	// or by the variable layer thickness table.
+    coordf_t    layer_height;
+
+    // Thickness of the first layer. This is either the first print layer thickness if printed without a raft,
+    // or a bridging flow thickness if printed over a non-soluble raft,
+    // or a normal layer height if printed over a soluble raft.
+    coordf_t    first_layer_height;
+
+    // If the object is printed over a non-soluble raft, the first layer may be printed with a briding flow.
+    bool 		first_layer_bridging;
+
+    // Minimum / maximum layer height, to be used for the automatic adaptive layer height algorithm,
+    // or by an interactive layer height editor.
+    coordf_t    min_layer_height;
+    coordf_t    max_layer_height;
+
+    // Bottom and top of the printed object.
+    // If printed without a raft, object_print_z_min = 0 and object_print_z_max = object height.
+    // Otherwise object_print_z_min is equal to the raft height.
+    coordf_t 	object_print_z_min;
+    coordf_t 	object_print_z_max;
+};
+
+typedef std::pair<coordf_t,coordf_t> t_layer_height_range;
+typedef std::map<t_layer_height_range,coordf_t> t_layer_height_ranges;
+
+}; // namespace Slic3r
+
+#endif /* slic3r_Slicing_hpp_ */