New --export-pov option (C++ only)

src/slic3r.cpp

@@ -70,6 +70,13 @@ main(const int argc, const char **argv)
             TriangleMesh mesh = model->mesh();
             Slic3r::IO::OBJ::write(mesh, outfile);
             printf("File exported to %s\n", outfile.c_str());
+        } else if (cli_config.export_pov) {
+            std::string outfile = cli_config.output.value;
+            if (outfile.empty()) outfile = model->objects.front()->input_file + ".pov";
+    
+            TriangleMesh mesh = model->mesh();
+            Slic3r::IO::POV::write(mesh, outfile);
+            printf("File exported to %s\n", outfile.c_str());
         } else if (cli_config.export_svg) {
             std::string outfile = cli_config.output.value;
             if (outfile.empty()) outfile = model->objects.front()->input_file + ".svg";

xs/src/libslic3r/IO.cpp

@@ -1,5 +1,7 @@
 #include "IO.hpp"
 #include <stdexcept>
+#include <fstream>
+#include <iostream>
 
 namespace Slic3r { namespace IO {
 
@@ -44,4 +46,22 @@ OBJ::write(TriangleMesh& mesh, std::string output_file)
     return true;
 }
 
+bool
+POV::write(TriangleMesh& mesh, std::string output_file)
+{
+    using namespace std;
+    ofstream pov;
+    pov.open(output_file.c_str(), ios::out | ios::trunc);
+    for (int i = 0; i < mesh.stl.stats.number_of_facets; ++i) {
+        const stl_facet &f = mesh.stl.facet_start[i];
+        pov << "triangle { ";
+        pov << "<" << f.vertex[0].x << "," << f.vertex[0].y << "," << f.vertex[0].z << ">,";
+        pov << "<" << f.vertex[1].x << "," << f.vertex[1].y << "," << f.vertex[1].z << ">,";
+        pov << "<" << f.vertex[2].x << "," << f.vertex[2].y << "," << f.vertex[2].z << ">";
+        pov << " }" << endl;
+    }
+    pov.close();
+    return true;
+}
+
 } }

xs/src/libslic3r/IO.hpp

@@ -21,6 +21,12 @@ class OBJ
     static bool write(TriangleMesh& mesh, std::string output_file);
 };
 
+class POV
+{
+    public:
+    static bool write(TriangleMesh& mesh, std::string output_file);
+};
+
 } }
 
 #endif

xs/src/libslic3r/PrintConfig.cpp

@@ -1359,10 +1359,16 @@ CLIConfigDef::CLIConfigDef()
     
     def = this->add("export_obj", coBool);
     def->label = "Export SVG";
-    def->tooltip = "Export the model to OBJ.";
+    def->tooltip = "Export the model as OBJ.";
     def->cli = "export-obj";
     def->default_value = new ConfigOptionBool(false);
     
+    def = this->add("export_pov", coBool);
+    def->label = "Export POV";
+    def->tooltip = "Export the model as POV-Ray definition.";
+    def->cli = "export-pov";
+    def->default_value = new ConfigOptionBool(false);
+    
     def = this->add("export_svg", coBool);
     def->label = "Export SVG";
     def->tooltip = "Slice the model and export slices as SVG.";

xs/src/libslic3r/PrintConfig.hpp

@@ -502,6 +502,7 @@ class CLIConfig
 {
     public:
     ConfigOptionBool                export_obj;
+    ConfigOptionBool                export_pov;
     ConfigOptionBool                export_svg;
     ConfigOptionBool                info;
     ConfigOptionString              output;
@@ -515,6 +516,7 @@ class CLIConfig
     
     virtual ConfigOption* optptr(const t_config_option_key &opt_key, bool create = false) {
         OPT_PTR(export_obj);
+        OPT_PTR(export_pov);
         OPT_PTR(export_svg);
         OPT_PTR(info);
         OPT_PTR(output);