Merge with master

xs/src/libslic3r/GCode/Analyzer.hpp

@@ -1,152 +1,227 @@
-#ifndef slic3r_GCode_PressureEqualizer_hpp_
-#define slic3r_GCode_PressureEqualizer_hpp_
+#ifndef slic3r_GCode_Analyzer_hpp_
+#define slic3r_GCode_Analyzer_hpp_
 
 #include "../libslic3r.h"
 #include "../PrintConfig.hpp"
 #include "../ExtrusionEntity.hpp"
 
+#include "Point.hpp"
+#include "GCodeReader.hpp"
+
 namespace Slic3r {
 
-enum GCodeMoveType
-{
-    GCODE_MOVE_TYPE_NOOP,
-    GCODE_MOVE_TYPE_RETRACT,
-    GCODE_MOVE_TYPE_UNRETRACT,
-    GCODE_MOVE_TYPE_TOOL_CHANGE,
-    GCODE_MOVE_TYPE_MOVE,
-    GCODE_MOVE_TYPE_EXTRUDE,
-};
+class GCodePreviewData;
 
-// For visualization purposes, for the purposes of the G-code analysis and timing.
-// The size of this structure is 56B.
-// Keep the size of this structure as small as possible, because all moves of a complete print
-// may be held in RAM.
-struct GCodeMove
-{
-    bool        moving_xy(const float* pos_start)   const { return fabs(pos_end[0] - pos_start[0]) > 0.f || fabs(pos_end[1] - pos_start[1]) > 0.f; }
-    bool        moving_xy()                         const { return moving_xy(get_pos_start()); }
-    bool        moving_z (const float* pos_start)   const { return fabs(pos_end[2] - pos_start[2]) > 0.f; }
-    bool        moving_z ()                         const { return moving_z(get_pos_start()); }
-    bool        extruding(const float* pos_start)   const { return moving_xy() && pos_end[3] > pos_start[3]; }
-    bool        extruding()                         const { return extruding(get_pos_start()); }
-    bool        retracting(const float* pos_start)  const { return pos_end[3] < pos_start[3]; }
-    bool        retracting()                        const { return retracting(get_pos_start()); }    
-    bool        deretracting(const float* pos_start)  const { return ! moving_xy() && pos_end[3] > pos_start[3]; }
-    bool        deretracting()                      const { return deretracting(get_pos_start()); }
-
-    float       dist_xy2(const float* pos_start)    const { return (pos_end[0] - pos_start[0]) * (pos_end[0] - pos_start[0]) + (pos_end[1] - pos_start[1]) * (pos_end[1] - pos_start[1]); }
-    float       dist_xy2()                          const { return dist_xy2(get_pos_start()); }
-    float       dist_xyz2(const float* pos_start)   const { return (pos_end[0] - pos_start[0]) * (pos_end[0] - pos_start[0]) + (pos_end[1] - pos_start[1]) * (pos_end[1] - pos_start[1]) + (pos_end[2] - pos_start[2]) * (pos_end[2] - pos_start[2]); }
-    float       dist_xyz2()                         const { return dist_xyz2(get_pos_start()); }
-
-    float       dist_xy(const float* pos_start)     const { return sqrt(dist_xy2(pos_start)); }
-    float       dist_xy()                           const { return dist_xy(get_pos_start()); }
-    float       dist_xyz(const float* pos_start)    const { return sqrt(dist_xyz2(pos_start)); }
-    float       dist_xyz()                          const { return dist_xyz(get_pos_start()); }
-
-    float       dist_e(const float* pos_start)      const { return fabs(pos_end[3] - pos_start[3]); }
-    float       dist_e()                            const { return dist_e(get_pos_start()); }
-
-    float       feedrate()                          const { return pos_end[4]; }
-    float       time(const float* pos_start)        const { return dist_xyz(pos_start) / feedrate(); }
-    float       time()                              const { return time(get_pos_start()); }
-    float       time_inv(const float* pos_start)    const { return feedrate() / dist_xyz(pos_start); }
-    float       time_inv()                          const { return time_inv(get_pos_start()); }
-
-    const float*    get_pos_start() const { assert(type != GCODE_MOVE_TYPE_NOOP); return this[-1].pos_end; }
-
-    // Pack the enums to conserve space. With C++x11 the allocation size could be declared for enums, but for old C++ this is the only portable way.
-    // GCodeLineType
-    uint8_t         type;
-    // Index of the active extruder.
-    uint8_t         extruder_id;
-    // ExtrusionRole
-    uint8_t         extrusion_role;
-    // For example, is it a bridge flow? Is the fan on?
-    uint8_t         flags;
-    // X,Y,Z,E,F. Storing the state of the currently active extruder only.
-    float           pos_end[5];
-    // Extrusion width, height for this segment in um.
-    uint16_t        extrusion_width;
-    uint16_t        extrusion_height;
-};
-
-typedef std::vector<GCodeMove> GCodeMoves;
-
-struct GCodeLayer
-{
-    // Index of an object printed.
-    size_t                  object_idx;
-    // Index of an object instance printed.
-    size_t                  object_instance_idx;
-    // Index of the layer printed.
-    size_t                  layer_idx;
-    // Top z coordinate of the layer printed.
-    float                   layer_z_top;
-
-    // Moves over this layer. The 0th move is always of type GCODELINETYPE_NOOP and
-    // it sets the initial position and tool for the layer.
-    GCodeMoves              moves;
-
-    // Indices into m_moves, where the tool changes happen.
-    // This is useful, if one wants to display just only a piece of the path quickly.
-    std::vector<size_t>     tool_changes;
-};
-
-typedef std::vector<GCodeLayer*> GCodeLayerPtrs;
-
-class GCodeMovesDB
-{
-public:
-    GCodeMovesDB() {};
-    ~GCodeMovesDB() { reset(); }
-    void reset();
-    GCodeLayerPtrs      m_layers;
-};
-
-// Processes a G-code to extract moves and their types.
-// This information is then used to render the print simulation colored by the extrusion type
-// or various speeds.
-// The GCodeAnalyzer is employed as a G-Code filter. It reads the G-code as it is generated,
-// parses the comments generated by Slic3r just for the analyzer, and removes these comments.
 class GCodeAnalyzer
 {
 public:
-    GCodeAnalyzer(const Slic3r::GCodeConfig *config);
-    ~GCodeAnalyzer();
+    static const std::string Extrusion_Role_Tag;
+    static const std::string Mm3_Per_Mm_Tag;
+    static const std::string Width_Tag;
+    static const std::string Height_Tag;
 
-    void reset();
+    static const double Default_mm3_per_mm;
+    static const float Default_Width;
+    static const float Default_Height;
 
-    // Process a next batch of G-code lines. Flush the internal buffers if asked for.
-    const char* process(const char *szGCode, bool flush);
-    // Length of the buffer returned by process().
-    size_t get_output_buffer_length() const { return output_buffer_length; }
+    enum EUnits : unsigned char
+    {
+        Millimeters,
+        Inches
+    };
+
+    enum EAxis : unsigned char
+    {
+        X,
+        Y,
+        Z,
+        E,
+        Num_Axis
+    };
+
+    enum EPositioningType : unsigned char
+    {
+        Absolute,
+        Relative
+    };
+
+    struct Metadata
+    {
+        ExtrusionRole extrusion_role;
+        unsigned int extruder_id;
+        double mm3_per_mm;
+        float width;     // mm
+        float height;    // mm
+        float feedrate;  // mm/s
+
+        Metadata();
+        Metadata(ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, float width, float height, float feedrate);
+
+        bool operator != (const Metadata& other) const;
+    };
+
+    struct GCodeMove
+    {
+        enum EType : unsigned char
+        {
+            Noop,
+            Retract,
+            Unretract,
+            Tool_change,
+            Move,
+            Extrude,
+            Num_Types
+        };
+
+        EType type;
+        Metadata data;
+        Pointf3 start_position;
+        Pointf3 end_position;
+        float delta_extruder;
+
+        GCodeMove(EType type, ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, float width, float height, float feedrate, const Pointf3& start_position, const Pointf3& end_position, float delta_extruder);
+        GCodeMove(EType type, const Metadata& data, const Pointf3& start_position, const Pointf3& end_position, float delta_extruder);
+    };
+
+    typedef std::vector<GCodeMove> GCodeMovesList;
+    typedef std::map<GCodeMove::EType, GCodeMovesList> TypeToMovesMap;
 
 private:
-    // Keeps the reference, does not own the config.
-    const Slic3r::GCodeConfig      *m_config;
+    struct State
+    {
+        EUnits units;
+        EPositioningType positioning_xyz_type;
+        EPositioningType positioning_e_type;
+        Metadata data;
+        Pointf3 start_position;
+        float start_extrusion;
+        float position[Num_Axis];
+    };
 
-    // Internal data.
-    // X,Y,Z,E,F
-    float                           m_current_pos[5];
-    size_t                          m_current_extruder;
-    ExtrusionRole                   m_current_extrusion_role;
-    uint16_t                        m_current_extrusion_width;
-    uint16_t                        m_current_extrusion_height;
-    bool                            m_retracted;
+private:
+    State m_state;
+    GCodeReader m_parser;
+    TypeToMovesMap m_moves_map;
 
-    GCodeMovesDB                   *m_moves;
+    // The output of process_layer()
+    std::string m_process_output;
 
-    // Output buffer will only grow. It will not be reallocated over and over.
-    std::vector<char>               output_buffer;
-    size_t                          output_buffer_length;
+public:
+    GCodeAnalyzer();
 
-    bool process_line(const char *line, const size_t len);
+    // Reinitialize the analyzer
+    void reset();
 
-    // Push the text to the end of the output_buffer.
-    void push_to_output(const char *text, const size_t len, bool add_eol = true);
+    // Adds the gcode contained in the given string to the analysis and returns it after removing the workcodes
+    const std::string& process_gcode(const std::string& gcode);
+
+    // Calculates all data needed for gcode visualization
+    void calc_gcode_preview_data(GCodePreviewData& preview_data);
+
+    static bool is_valid_extrusion_role(ExtrusionRole role);
+
+private:
+    // Processes the given gcode line
+    void _process_gcode_line(GCodeReader& reader, const GCodeReader::GCodeLine& line);
+
+    // Move
+    void _processG1(const GCodeReader::GCodeLine& line);
+
+    // Firmware controlled Retract
+    void _processG22(const GCodeReader::GCodeLine& line);
+
+    // Firmware controlled Unretract
+    void _processG23(const GCodeReader::GCodeLine& line);
+
+    // Set to Absolute Positioning
+    void _processG90(const GCodeReader::GCodeLine& line);
+
+    // Set to Relative Positioning
+    void _processG91(const GCodeReader::GCodeLine& line);
+
+    // Set Position
+    void _processG92(const GCodeReader::GCodeLine& line);
+
+    // Set extruder to absolute mode
+    void _processM82(const GCodeReader::GCodeLine& line);
+
+    // Set extruder to relative mode
+    void _processM83(const GCodeReader::GCodeLine& line);
+
+    // Processes T line (Select Tool)
+    void _processT(const GCodeReader::GCodeLine& line);
+
+    // Processes the tags
+    // Returns true if any tag has been processed
+    bool _process_tags(const GCodeReader::GCodeLine& line);
+
+    // Processes extrusion role tag
+    void _process_extrusion_role_tag(const std::string& comment, size_t pos);
+
+    // Processes mm3_per_mm tag
+    void _process_mm3_per_mm_tag(const std::string& comment, size_t pos);
+
+    // Processes width tag
+    void _process_width_tag(const std::string& comment, size_t pos);
+
+    // Processes height tag
+    void _process_height_tag(const std::string& comment, size_t pos);
+
+    void _set_units(EUnits units);
+    EUnits _get_units() const;
+
+    void _set_positioning_xyz_type(EPositioningType type);
+    EPositioningType _get_positioning_xyz_type() const;
+
+    void _set_positioning_e_type(EPositioningType type);
+    EPositioningType _get_positioning_e_type() const;
+
+    void _set_extrusion_role(ExtrusionRole extrusion_role);
+    ExtrusionRole _get_extrusion_role() const;
+
+    void _set_extruder_id(unsigned int id);
+    unsigned int _get_extruder_id() const;
+
+    void _set_mm3_per_mm(double value);
+    double _get_mm3_per_mm() const;
+
+    void _set_width(float width);
+    float _get_width() const;
+
+    void _set_height(float height);
+    float _get_height() const;
+
+    void _set_feedrate(float feedrate_mm_sec);
+    float _get_feedrate() const;
+
+    void _set_axis_position(EAxis axis, float position);
+    float _get_axis_position(EAxis axis) const;
+
+    // Sets axes position to zero
+    void _reset_axes_position();
+
+    void _set_start_position(const Pointf3& position);
+    const Pointf3& _get_start_position() const;
+
+    void _set_start_extrusion(float extrusion);
+    float _get_start_extrusion() const;
+    float _get_delta_extrusion() const;
+
+    // Returns current xyz position (from m_state.position[])
+    Pointf3 _get_end_position() const;
+
+    // Adds a new move with the given data
+    void _store_move(GCodeMove::EType type);
+
+    // Checks if the given int is a valid extrusion role (contained into enum ExtrusionRole)
+    bool _is_valid_extrusion_role(int value) const;
+
+    void _calc_gcode_preview_extrusion_layers(GCodePreviewData& preview_data);
+    void _calc_gcode_preview_travel(GCodePreviewData& preview_data);
+    void _calc_gcode_preview_retractions(GCodePreviewData& preview_data);
+    void _calc_gcode_preview_unretractions(GCodePreviewData& preview_data);
 };
 
 } // namespace Slic3r
 
-#endif /* slic3r_GCode_PressureEqualizer_hpp_ */
+#endif /* slic3r_GCode_Analyzer_hpp_ */

xs/src/libslic3r/GCode/PreviewData.cpp

@@ -0,0 +1,408 @@
+#include "Analyzer.hpp"
+#include "PreviewData.hpp"
+#include <float.h>
+
+namespace Slic3r {
+
+const GCodePreviewData::Color GCodePreviewData::Color::Dummy(0.0f, 0.0f, 0.0f, 0.0f);
+
+GCodePreviewData::Color::Color()
+{
+    rgba[0] = 1.0f;
+    rgba[1] = 1.0f;
+    rgba[2] = 1.0f;
+    rgba[3] = 1.0f;
+}
+
+GCodePreviewData::Color::Color(float r, float g, float b, float a)
+{
+    rgba[0] = r;
+    rgba[1] = g;
+    rgba[2] = b;
+    rgba[3] = a;
+}
+
+std::vector<unsigned char> GCodePreviewData::Color::as_bytes() const
+{
+    std::vector<unsigned char> ret;
+    for (unsigned int i = 0; i < 4; ++i)
+    {
+        ret.push_back((unsigned char)(255.0f * rgba[i]));
+    }
+    return ret;
+}
+
+GCodePreviewData::Extrusion::Layer::Layer(float z, const ExtrusionPaths& paths)
+    : z(z)
+    , paths(paths)
+{
+}
+
+GCodePreviewData::Travel::Polyline::Polyline(EType type, EDirection direction, float feedrate, unsigned int extruder_id, const Polyline3& polyline)
+    : type(type)
+    , direction(direction)
+    , feedrate(feedrate)
+    , extruder_id(extruder_id)
+    , polyline(polyline)
+{
+}
+
+const GCodePreviewData::Color GCodePreviewData::Range::Default_Colors[Colors_Count] =
+{
+    Color(0.043f, 0.173f, 0.478f, 1.0f),
+    Color(0.075f, 0.349f, 0.522f, 1.0f),
+    Color(0.110f, 0.533f, 0.569f, 1.0f),
+    Color(0.016f, 0.839f, 0.059f, 1.0f),
+    Color(0.667f, 0.949f, 0.000f, 1.0f),
+    Color(0.988f, 0.975f, 0.012f, 1.0f),
+    Color(0.961f, 0.808f, 0.039f, 1.0f),
+    Color(0.890f, 0.533f, 0.125f, 1.0f),
+    Color(0.820f, 0.408f, 0.188f, 1.0f),
+    Color(0.761f, 0.322f, 0.235f, 1.0f)
+};
+
+GCodePreviewData::Range::Range()
+{
+    reset();
+}
+
+void GCodePreviewData::Range::reset()
+{
+    min = FLT_MAX;
+    max = -FLT_MAX;
+}
+
+bool GCodePreviewData::Range::empty() const
+{
+    return min == max;
+}
+
+void GCodePreviewData::Range::update_from(float value)
+{
+    min = std::min(min, value);
+    max = std::max(max, value);
+}
+
+void GCodePreviewData::Range::set_from(const Range& other)
+{
+    min = other.min;
+    max = other.max;
+}
+
+float GCodePreviewData::Range::step_size() const
+{
+    return (max - min) / (float)Colors_Count;
+}
+
+const GCodePreviewData::Color& GCodePreviewData::Range::get_color_at_max() const
+{
+    return colors[Colors_Count - 1];
+}
+
+const GCodePreviewData::Color& GCodePreviewData::Range::get_color_at(float value) const
+{
+    return empty() ? get_color_at_max() : colors[clamp((unsigned int)0, Colors_Count - 1, (unsigned int)((value - min) / step_size()))];
+}
+
+GCodePreviewData::LegendItem::LegendItem(const std::string& text, const GCodePreviewData::Color& color)
+    : text(text)
+    , color(color)
+{
+}
+
+const GCodePreviewData::Color GCodePreviewData::Extrusion::Default_Extrusion_Role_Colors[Num_Extrusion_Roles] =
+{
+    Color(0.0f, 0.0f, 0.0f, 1.0f),   // erNone
+    Color(1.0f, 0.0f, 0.0f, 1.0f),   // erPerimeter
+    Color(0.0f, 1.0f, 0.0f, 1.0f),   // erExternalPerimeter
+    Color(0.0f, 0.0f, 1.0f, 1.0f),   // erOverhangPerimeter
+    Color(1.0f, 1.0f, 0.0f, 1.0f),   // erInternalInfill
+    Color(1.0f, 0.0f, 1.0f, 1.0f),   // erSolidInfill
+    Color(0.0f, 1.0f, 1.0f, 1.0f),   // erTopSolidInfill
+    Color(0.5f, 0.5f, 0.5f, 1.0f),   // erBridgeInfill
+    Color(1.0f, 1.0f, 1.0f, 1.0f),   // erGapFill
+    Color(0.5f, 0.0f, 0.0f, 1.0f),   // erSkirt
+    Color(0.0f, 0.5f, 0.0f, 1.0f),   // erSupportMaterial
+    Color(0.0f, 0.0f, 0.5f, 1.0f),   // erSupportMaterialInterface
+    Color(0.7f, 0.89f, 0.67f, 1.0f), // erWipeTower
+    Color(0.0f, 0.0f, 0.0f, 1.0f)    // erMixed
+};
+
+// todo: merge with Slic3r::ExtrusionRole2String() from GCode.cpp
+const std::string GCodePreviewData::Extrusion::Default_Extrusion_Role_Names[Num_Extrusion_Roles]
+{
+    "None",
+    "Perimeter",
+    "External perimeter",
+    "Overhang perimeter",
+    "Internal infill",
+    "Solid infill",
+    "Top solid infill",
+    "Bridge infill",
+    "Gap fill",
+    "Skirt",
+    "Support material",
+    "Support material interface",
+    "Wipe tower",
+    "Mixed"
+};
+
+const GCodePreviewData::Extrusion::EViewType GCodePreviewData::Extrusion::Default_View_Type = GCodePreviewData::Extrusion::FeatureType;
+
+void GCodePreviewData::Extrusion::set_default()
+{
+    view_type = Default_View_Type;
+
+    ::memcpy((void*)role_colors, (const void*)Default_Extrusion_Role_Colors, Num_Extrusion_Roles * sizeof(Color));
+    ::memcpy((void*)ranges.height.colors, (const void*)Range::Default_Colors, Range::Colors_Count * sizeof(Color));
+    ::memcpy((void*)ranges.width.colors, (const void*)Range::Default_Colors, Range::Colors_Count * sizeof(Color));
+    ::memcpy((void*)ranges.feedrate.colors, (const void*)Range::Default_Colors, Range::Colors_Count * sizeof(Color));
+
+    for (unsigned int i = 0; i < Num_Extrusion_Roles; ++i)
+    {
+        role_names[i] = Default_Extrusion_Role_Names[i];
+    }
+
+    role_flags = 0;
+    for (unsigned int i = 0; i < Num_Extrusion_Roles; ++i)
+    {
+        role_flags |= 1 << i;
+    }
+}
+
+bool GCodePreviewData::Extrusion::is_role_flag_set(ExtrusionRole role) const
+{
+    return is_role_flag_set(role_flags, role);
+}
+
+bool GCodePreviewData::Extrusion::is_role_flag_set(unsigned int flags, ExtrusionRole role)
+{
+    return GCodeAnalyzer::is_valid_extrusion_role(role) && (flags & (1 << (role - erPerimeter))) != 0;
+}
+
+const float GCodePreviewData::Travel::Default_Width = 0.075f;
+const float GCodePreviewData::Travel::Default_Height = 0.075f;
+const GCodePreviewData::Color GCodePreviewData::Travel::Default_Type_Colors[Num_Types] =
+{
+    Color(0.0f, 0.0f, 0.75f, 1.0f), // Move
+    Color(0.0f, 0.75f, 0.0f, 1.0f), // Extrude
+    Color(0.75f, 0.0f, 0.0f, 1.0f), // Retract
+};
+
+void GCodePreviewData::Travel::set_default()
+{
+    width = Default_Width;
+    height = Default_Height;
+    ::memcpy((void*)type_colors, (const void*)Default_Type_Colors, Num_Types * sizeof(Color));
+    is_visible = false;
+}
+
+const GCodePreviewData::Color GCodePreviewData::Retraction::Default_Color = GCodePreviewData::Color(1.0f, 1.0f, 1.0f, 1.0f);
+
+GCodePreviewData::Retraction::Position::Position(const Point3& position, float width, float height)
+    : position(position)
+    , width(width)
+    , height(height)
+{
+}
+
+void GCodePreviewData::Retraction::set_default()
+{
+    color = Default_Color;
+    is_visible = false;
+}
+
+void GCodePreviewData::Shell::set_default()
+{
+    is_visible = false;
+}
+
+GCodePreviewData::GCodePreviewData()
+{
+    set_default();
+}
+
+void GCodePreviewData::set_default()
+{
+    extrusion.set_default();
+    travel.set_default();
+    retraction.set_default();
+    unretraction.set_default();
+    shell.set_default();
+}
+
+void GCodePreviewData::reset()
+{
+    extrusion.layers.clear();
+    travel.polylines.clear();
+    retraction.positions.clear();
+    unretraction.positions.clear();
+}
+
+bool GCodePreviewData::empty() const
+{
+    return extrusion.layers.empty() && travel.polylines.empty() && retraction.positions.empty() && unretraction.positions.empty();
+}
+
+const GCodePreviewData::Color& GCodePreviewData::get_extrusion_role_color(ExtrusionRole role) const
+{
+    return extrusion.role_colors[role];
+}
+
+const GCodePreviewData::Color& GCodePreviewData::get_extrusion_height_color(float height) const
+{
+    return extrusion.ranges.height.get_color_at(height);
+}
+
+const GCodePreviewData::Color& GCodePreviewData::get_extrusion_width_color(float width) const
+{
+    return extrusion.ranges.width.get_color_at(width);
+}
+
+const GCodePreviewData::Color& GCodePreviewData::get_extrusion_feedrate_color(float feedrate) const
+{
+    return extrusion.ranges.feedrate.get_color_at(feedrate);
+}
+
+void GCodePreviewData::set_extrusion_role_color(const std::string& role_name, float red, float green, float blue, float alpha)
+{
+    for (unsigned int i = 0; i < Extrusion::Num_Extrusion_Roles; ++i)
+    {
+        if (role_name == extrusion.role_names[i])
+        {
+            extrusion.role_colors[i] = Color(red, green, blue, alpha);
+            break;
+        }
+    }
+}
+
+void GCodePreviewData::set_extrusion_paths_colors(const std::vector<std::string>& colors)
+{
+    unsigned int size = (unsigned int)colors.size();
+
+    if (size % 2 != 0)
+        return;
+
+    for (unsigned int i = 0; i < size; i += 2)
+    {
+        const std::string& color_str = colors[i + 1];
+
+        if (color_str.size() == 6)
+        {
+            bool valid = true;
+            for (int c = 0; c < 6; ++c)
+            {
+                if (::isxdigit(color_str[c]) == 0)
+                {
+                    valid = false;
+                    break;
+                }
+            }
+
+            if (valid)
+            {
+                unsigned int color;
+                std::stringstream ss;
+                ss << std::hex << color_str;
+                ss >> color;
+
+                float den = 1.0f / 255.0f;
+
+                float r = (float)((color & 0xFF0000) >> 16) * den;
+                float g = (float)((color & 0x00FF00) >> 8) * den;
+                float b = (float)(color & 0x0000FF) * den;
+
+                this->set_extrusion_role_color(colors[i], r, g, b, 1.0f);
+            }
+        }
+    }
+}
+
+std::string GCodePreviewData::get_legend_title() const
+{
+    switch (extrusion.view_type)
+    {
+    case Extrusion::FeatureType:
+        return "Feature type";
+    case Extrusion::Height:
+        return "Height (mm)";
+    case Extrusion::Width:
+        return "Width (mm)";
+    case Extrusion::Feedrate:
+        return "Speed (mm/s)";
+    case Extrusion::Tool:
+        return "Tool";
+    }
+
+    return "";
+}
+
+GCodePreviewData::LegendItemsList GCodePreviewData::get_legend_items(const std::vector<float>& tool_colors) const
+{
+    struct Helper
+    {
+        static void FillListFromRange(LegendItemsList& list, const Range& range, unsigned int decimals, float scale_factor)
+        {
+            list.reserve(Range::Colors_Count);
+            float step = range.step_size();
+            for (unsigned int i = 0; i < Range::Colors_Count; ++i)
+            {
+                char buf[32];
+                sprintf(buf, "%.*f/%.*f", decimals, scale_factor * (range.min + (float)i * step), decimals, scale_factor * (range.min + (float)(i + 1) * step));
+                list.emplace_back(buf, range.colors[i]);
+            }
+        }
+    };
+
+    LegendItemsList items;
+
+    switch (extrusion.view_type)
+    {
+    case Extrusion::FeatureType:
+        {
+            items.reserve(erMixed - erPerimeter + 1);
+            for (unsigned int i = (unsigned int)erPerimeter; i < (unsigned int)erMixed; ++i)
+            {
+                items.emplace_back(extrusion.role_names[i], extrusion.role_colors[i]);
+            }
+
+            break;
+        }
+    case Extrusion::Height:
+        {
+            Helper::FillListFromRange(items, extrusion.ranges.height, 3, 1.0f);            
+            break;
+        }
+    case Extrusion::Width:
+        {
+            Helper::FillListFromRange(items, extrusion.ranges.width, 3, 1.0f);
+            break;
+        }
+    case Extrusion::Feedrate:
+        {
+            Helper::FillListFromRange(items, extrusion.ranges.feedrate, 0, 1.0f);
+            break;
+        }
+    case Extrusion::Tool:
+        {
+            unsigned int tools_colors_count = tool_colors.size() / 4;
+            items.reserve(tools_colors_count);
+            for (unsigned int i = 0; i < tools_colors_count; ++i)
+            {
+                char buf[32];
+                sprintf(buf, "Extruder %d", i + 1);
+
+                GCodePreviewData::Color color;
+                ::memcpy((void*)color.rgba, (const void*)(tool_colors.data() + i * 4), 4 * sizeof(float));
+
+                items.emplace_back(buf, color);
+            }
+
+            break;
+        }
+    }
+
+    return items;
+}
+
+} // namespace Slic3r

xs/src/libslic3r/GCode/PreviewData.hpp

@@ -0,0 +1,205 @@
+#ifndef slic3r_GCode_PreviewData_hpp_
+#define slic3r_GCode_PreviewData_hpp_
+
+#include "../libslic3r.h"
+#include "../ExtrusionEntity.hpp"
+
+#include "Point.hpp"
+
+namespace Slic3r {
+
+class GCodePreviewData
+{
+public:
+    struct Color
+    {
+        float rgba[4];
+
+        Color();
+        Color(float r, float g, float b, float a);
+
+        std::vector<unsigned char> as_bytes() const;
+
+        static const Color Dummy;
+    };
+
+    struct Range
+    {
+        static const unsigned int Colors_Count = 10;
+        static const Color Default_Colors[Colors_Count];
+
+        Color colors[Colors_Count];
+        float min;
+        float max;
+
+        Range();
+
+        void reset();
+        bool empty() const;
+        void update_from(float value);
+        void set_from(const Range& other);
+        float step_size() const;
+
+        const Color& get_color_at(float value) const;
+        const Color& get_color_at_max() const;
+    };
+
+    struct LegendItem
+    {
+        std::string text;
+        Color color;
+
+        LegendItem(const std::string& text, const Color& color);
+    };
+
+    typedef std::vector<LegendItem> LegendItemsList;
+
+    struct Extrusion
+    {
+        enum EViewType : unsigned char
+        {
+            FeatureType,
+            Height,
+            Width,
+            Feedrate,
+            Tool,
+            Num_View_Types
+        };
+
+        static const unsigned int Num_Extrusion_Roles = (unsigned int)erMixed + 1;
+        static const Color Default_Extrusion_Role_Colors[Num_Extrusion_Roles];
+        static const std::string Default_Extrusion_Role_Names[Num_Extrusion_Roles];
+        static const EViewType Default_View_Type;
+
+        struct Ranges
+        {
+            Range height;
+            Range width;
+            Range feedrate;
+        };
+
+        struct Layer
+        {
+            float z;
+            ExtrusionPaths paths;
+
+            Layer(float z, const ExtrusionPaths& paths);
+        };
+
+        typedef std::vector<Layer> LayersList;
+
+        EViewType view_type;
+        Color role_colors[Num_Extrusion_Roles];
+        std::string role_names[Num_Extrusion_Roles];
+        Ranges ranges;
+        LayersList layers;
+        unsigned int role_flags;
+
+        void set_default();
+        bool is_role_flag_set(ExtrusionRole role) const;
+
+        static bool is_role_flag_set(unsigned int flags, ExtrusionRole role);
+    };
+
+    struct Travel
+    {
+        enum EType : unsigned char
+        {
+            Move,
+            Extrude,
+            Retract,
+            Num_Types
+        };
+
+        static const float Default_Width;
+        static const float Default_Height;
+        static const Color Default_Type_Colors[Num_Types];
+
+        struct Polyline
+        {
+            enum EDirection
+            {
+                Vertical,
+                Generic,
+                Num_Directions
+            };
+
+            EType type;
+            EDirection direction;
+            float feedrate;
+            unsigned int extruder_id;
+            Polyline3 polyline;
+
+            Polyline(EType type, EDirection direction, float feedrate, unsigned int extruder_id, const Polyline3& polyline);
+        };
+
+        typedef std::vector<Polyline> PolylinesList;
+
+        PolylinesList polylines;
+        float width;
+        float height;
+        Color type_colors[Num_Types];
+        bool is_visible;
+
+        void set_default();
+    };
+
+    struct Retraction
+    {
+        static const Color Default_Color;
+
+        struct Position
+        {
+            Point3 position;
+            float width;
+            float height;
+
+            Position(const Point3& position, float width, float height);
+        };
+
+        typedef std::vector<Position> PositionsList;
+
+        PositionsList positions;
+        Color color;
+        bool is_visible;
+
+        void set_default();
+    };
+
+    struct Shell
+    {
+        bool is_visible;
+
+        void set_default();
+    };
+
+    Extrusion extrusion;
+    Travel travel;
+    Retraction retraction;
+    Retraction unretraction;
+    Shell shell;
+
+    GCodePreviewData();
+
+    void set_default();
+    void reset();
+    bool empty() const;
+
+    const Color& get_extrusion_role_color(ExtrusionRole role) const;
+    const Color& get_extrusion_height_color(float height) const;
+    const Color& get_extrusion_width_color(float width) const;
+    const Color& get_extrusion_feedrate_color(float feedrate) const;
+
+    void set_extrusion_role_color(const std::string& role_name, float red, float green, float blue, float alpha);
+    void set_extrusion_paths_colors(const std::vector<std::string>& colors);
+
+    std::string get_legend_title() const;
+    LegendItemsList get_legend_items(const std::vector<float>& tool_colors) const;
+};
+
+GCodePreviewData::Color operator + (const GCodePreviewData::Color& c1, const GCodePreviewData::Color& c2);
+GCodePreviewData::Color operator * (float f, const GCodePreviewData::Color& color);
+
+} // namespace Slic3r
+
+#endif /* slic3r_GCode_PreviewData_hpp_ */

xs/src/libslic3r/GCode/SpiralVase.cpp

@@ -4,17 +4,7 @@
 
 namespace Slic3r {
 
-std::string
-_format_z(float z)
-{
-    std::ostringstream ss;
-    ss << std::fixed << std::setprecision(3)
-       << z;
-    return ss.str();
-}
-
-std::string
-SpiralVase::process_layer(const std::string &gcode)
+std::string SpiralVase::process_layer(const std::string &gcode)
 {
     /*  This post-processor relies on several assumptions:
         - all layers are processed through it, including those that are not supposed
@@ -27,7 +17,7 @@ SpiralVase::process_layer(const std::string &gcode)
     // If we're not going to modify G-code, just feed it to the reader
     // in order to update positions.
     if (!this->enable) {
-        this->_reader.parse(gcode, {});
+        this->_reader.parse_buffer(gcode);
         return gcode;
     }
     
@@ -38,16 +28,17 @@ SpiralVase::process_layer(const std::string &gcode)
     bool set_z = false;
     
     {
+        //FIXME Performance warning: This copies the GCodeConfig of the reader.
         GCodeReader r = this->_reader;  // clone
-        r.parse(gcode, [&total_layer_length, &layer_height, &z, &set_z]
-            (GCodeReader &, const GCodeReader::GCodeLine &line) {
-            if (line.cmd == "G1") {
-                if (line.extruding()) {
-                    total_layer_length += line.dist_XY();
-                } else if (line.has('Z')) {
-                    layer_height += line.dist_Z();
+        r.parse_buffer(gcode, [&total_layer_length, &layer_height, &z, &set_z]
+            (GCodeReader &reader, const GCodeReader::GCodeLine &line) {
+            if (line.cmd_is("G1")) {
+                if (line.extruding(reader)) {
+                    total_layer_length += line.dist_XY(reader);
+                } else if (line.has(Z)) {
+                    layer_height += line.dist_Z(reader);
                     if (!set_z) {
-                        z = line.new_Z();
+                        z = line.new_Z(reader);
                         set_z = true;
                     }
                 }
@@ -59,23 +50,23 @@ SpiralVase::process_layer(const std::string &gcode)
     z -= layer_height;
     
     std::string new_gcode;
-    this->_reader.parse(gcode, [&new_gcode, &z, &layer_height, &total_layer_length]
-        (GCodeReader &, GCodeReader::GCodeLine line) {
-        if (line.cmd == "G1") {
-            if (line.has('Z')) {
+    this->_reader.parse_buffer(gcode, [&new_gcode, &z, &layer_height, &total_layer_length]
+        (GCodeReader &reader, GCodeReader::GCodeLine line) {
+        if (line.cmd_is("G1")) {
+            if (line.has_z()) {
                 // If this is the initial Z move of the layer, replace it with a
                 // (redundant) move to the last Z of previous layer.
-                line.set('Z', _format_z(z));
-                new_gcode += line.raw + '\n';
+                line.set(reader, Z, z);
+                new_gcode += line.raw() + '\n';
                 return;
             } else {
-                float dist_XY = line.dist_XY();
+                float dist_XY = line.dist_XY(reader);
                 if (dist_XY > 0) {
                     // horizontal move
-                    if (line.extruding()) {
+                    if (line.extruding(reader)) {
                         z += dist_XY * layer_height / total_layer_length;
-                        line.set('Z', _format_z(z));
-                        new_gcode += line.raw + '\n';
+                        line.set(reader, Z, z);
+                        new_gcode += line.raw() + '\n';
                     }
                     return;
                 
@@ -87,7 +78,7 @@ SpiralVase::process_layer(const std::string &gcode)
                 }
             }
         }
-        new_gcode += line.raw + '\n';
+        new_gcode += line.raw() + '\n';
     });
     
     return new_gcode;

xs/src/libslic3r/GCode/SpiralVase.hpp

@@ -13,7 +13,7 @@ class SpiralVase {
     SpiralVase(const PrintConfig &config)
         : enable(false), _config(&config)
     {
-        this->_reader.Z = this->_config->z_offset;
+        this->_reader.z() = this->_config->z_offset;
         this->_reader.apply_config(*this->_config);
     };
     std::string process_layer(const std::string &gcode);

xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp

@@ -21,6 +21,8 @@ TODO LIST
 #include <iostream>
 #include <vector>
 
+#include "Analyzer.hpp"
+
 #if defined(__linux) || defined(__GNUC__ )
 #include <strings.h>
 #endif /* __linux */
@@ -510,6 +512,11 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::prime(
 		.travel(cleaning_box.ld, 7200)
 		.set_extruder_trimpot(750); 			// Increase the extruder driver current to allow fast ramming.
 
+    // adds tag for analyzer
+    char buf[32];
+    sprintf(buf, ";%s%d\n", GCodeAnalyzer::Extrusion_Role_Tag.c_str(), erWipeTower);
+    writer.append(buf);
+
 	if (purpose == PURPOSE_EXTRUDE || purpose == PURPOSE_MOVE_TO_TOWER_AND_EXTRUDE) {
 		for (size_t idx_tool = 0; idx_tool < tools.size(); ++ idx_tool) {
 			unsigned int tool = tools[idx_tool];
@@ -658,6 +665,11 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::tool_change(unsigned int tool, boo
 		writer.set_initial_position(initial_position);
 	}
 
+    // adds tag for analyzer
+    char buf[32];
+    sprintf(buf, ";%s%d\n", GCodeAnalyzer::Extrusion_Role_Tag.c_str(), erWipeTower);
+    writer.append(buf);
+
 	if (purpose == PURPOSE_EXTRUDE || purpose == PURPOSE_MOVE_TO_TOWER_AND_EXTRUDE) {
 		// Increase the extruder driver current to allow fast ramming.
 		writer.set_extruder_trimpot(750);
@@ -735,6 +747,11 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::toolchange_Brim(Purpose purpose, b
 	else 
 		writer.set_initial_position(initial_position);
 
+    // adds tag for analyzer
+    char buf[32];
+    sprintf(buf, ";%s%d\n", GCodeAnalyzer::Extrusion_Role_Tag.c_str(), erWipeTower);
+    writer.append(buf);
+
 	if (purpose == PURPOSE_EXTRUDE || purpose == PURPOSE_MOVE_TO_TOWER_AND_EXTRUDE) {
 
 		writer.extrude_explicit(wipeTower_box.ld - xy(m_perimeter_width * 6.f, 0), // Prime the extruder left of the wipe tower.