Slic3r::anonymous_namespace{GCode.cpp} Namespace Reference

Classes
struct	PrecomputedLayer

Functions
std::optional< Vec2d >	emitted_xy_after_gcode (const std::string &gcode, const Vec2d &initial_xy)

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Class Documentation

Slic3r::anonymous_namespace{GCode.cpp}::PrecomputedLayer

struct Slic3r::anonymous_namespace{GCode.cpp}::PrecomputedLayer

Collaboration diagram for Slic3r::anonymous_namespace{GCode.cpp}::PrecomputedLayer:

Class Members
size_t	index {size_t(-1)}
vector< PrecomputedOverhangLayer >	overhang_layers

Function Documentation

emitted_xy_after_gcode()

std::optional< Vec2d > Slic3r::anonymous_namespace{GCode.cpp}::emitted_xy_after_gcode	(	const std::string &	gcode,
		const Vec2d &	initial_xy )

{
    Vec2d position = initial_xy;
    bool  absolute = true;
    bool  coordinate_frame_known = true;
 
    GCodeReader reader;
    reader.parse_buffer(gcode, [&position, &absolute, &coordinate_frame_known](GCodeReader &, const GCodeReader::GCodeLine &line) {
        if (line.cmd_is("G90")) {
            absolute = true;
            return;
        }
        if (line.cmd_is("G91")) {
            absolute = false;
            return;
        }
 
        const bool is_motion = line.cmd_is("G0") || line.cmd_is("G1") || line.cmd_is("G2") || line.cmd_is("G3");
        if (is_motion) {
            if (line.has_x())
                position.x() = absolute ? line.x() : position.x() + line.x();
            if (line.has_y())
                position.y() = absolute ? line.y() : position.y() + line.y();
            return;
        }
 
        // G92 changes the coordinate system without moving the machine, and
        // G28 moves to a firmware-defined position. Do not invent a position
        // if either command affects XY.
        if (line.cmd_is("G92")) {
            coordinate_frame_known = coordinate_frame_known && !line.has_x() && !line.has_y();
        } else if (line.cmd_is("G28")) {
            const bool homes_all = !line.has_x() && !line.has_y() && !line.has_z();
            coordinate_frame_known = coordinate_frame_known && !homes_all && !line.has_x() && !line.has_y();
        }
    });
 
    return coordinate_frame_known ? std::optional<Vec2d>(position) : std::nullopt;
}

References Slic3r::GCodeReader::GCodeLine::cmd_is(), emitted_xy_after_gcode(), Slic3r::GCodeReader::GCodeLine::has_x(), Slic3r::GCodeReader::GCodeLine::has_y(), Slic3r::GCodeReader::GCodeLine::has_z(), Slic3r::GCodeReader::parse_buffer(), Slic3r::GCodeReader::GCodeLine::x(), and Slic3r::GCodeReader::GCodeLine::y().

Referenced by emitted_xy_after_gcode().

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