416 lines
15 KiB
C++
416 lines
15 KiB
C++
#ifndef slic3r_SLAPrint_hpp_
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#define slic3r_SLAPrint_hpp_
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#include <mutex>
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#include "PrintBase.hpp"
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#include "PrintExport.hpp"
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#include "Point.hpp"
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#include "MTUtils.hpp"
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#include <iterator>
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namespace Slic3r {
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enum SLAPrintStep : unsigned int {
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slapsRasterize,
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slapsValidate,
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slapsCount
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};
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enum SLAPrintObjectStep : unsigned int {
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slaposObjectSlice,
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slaposSupportPoints,
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slaposSupportTree,
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slaposBasePool,
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slaposSliceSupports,
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slaposIndexSlices,
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slaposCount
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};
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class SLAPrint;
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class GLCanvas;
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using _SLAPrintObjectBase =
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PrintObjectBaseWithState<SLAPrint, SLAPrintObjectStep, slaposCount>;
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// Layers according to quantized height levels. This will be consumed by
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// the printer (rasterizer) in the SLAPrint class.
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// using coord_t = long long;
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enum SliceOrigin { soSupport, soModel };
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class SLAPrintObject;
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// The public Slice record structure. It corresponds to one printable layer.
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class SliceRecord {
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public:
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// this will be the max limit of size_t
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static const size_t NONE = size_t(-1);
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static const SliceRecord EMPTY;
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private:
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coord_t m_print_z = 0; // Top of the layer
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float m_slice_z = 0.f; // Exact level of the slice
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float m_height = 0.f; // Height of the sliced layer
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size_t m_model_slices_idx = NONE;
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size_t m_support_slices_idx = NONE;
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const SLAPrintObject *m_po = nullptr;
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public:
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SliceRecord(coord_t key, float slicez, float height):
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m_print_z(key), m_slice_z(slicez), m_height(height) {}
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// The key will be the integer height level of the top of the layer.
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coord_t print_level() const { return m_print_z; }
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// Returns the exact floating point Z coordinate of the slice
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float slice_level() const { return m_slice_z; }
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// Returns the current layer height
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float layer_height() const { return m_height; }
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bool is_valid() const { return std::isnan(m_slice_z); }
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const SLAPrintObject* print_obj() const { return m_po; }
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// Methods for setting the indices into the slice vectors.
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void set_model_slice_idx(const SLAPrintObject &po, size_t id) {
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m_po = &po; m_model_slices_idx = id;
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}
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void set_support_slice_idx(const SLAPrintObject& po, size_t id) {
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m_po = &po; m_support_slices_idx = id;
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}
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const ExPolygons& get_slice(SliceOrigin o) const;
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};
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class SLAPrintObject : public _SLAPrintObjectBase
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{
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private: // Prevents erroneous use by other classes.
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using Inherited = _SLAPrintObjectBase;
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public:
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// I refuse to grantee copying (Tamas)
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SLAPrintObject(const SLAPrintObject&) = delete;
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SLAPrintObject& operator=(const SLAPrintObject&) = delete;
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const SLAPrintObjectConfig& config() const { return m_config; }
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const Transform3d& trafo() const { return m_trafo; }
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struct Instance {
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Instance(ModelID instance_id, const Point &shift, float rotation) : instance_id(instance_id), shift(shift), rotation(rotation) {}
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bool operator==(const Instance &rhs) const { return this->instance_id == rhs.instance_id && this->shift == rhs.shift && this->rotation == rhs.rotation; }
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// ID of the corresponding ModelInstance.
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ModelID instance_id;
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// Slic3r::Point objects in scaled G-code coordinates
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Point shift;
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// Rotation along the Z axis, in radians.
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float rotation;
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};
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const std::vector<Instance>& instances() const { return m_instances; }
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bool has_mesh(SLAPrintObjectStep step) const;
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TriangleMesh get_mesh(SLAPrintObjectStep step) const;
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// Get a support mesh centered around origin in XY, and with zero rotation around Z applied.
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// Support mesh is only valid if this->is_step_done(slaposSupportTree) is true.
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const TriangleMesh& support_mesh() const;
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// Get a pad mesh centered around origin in XY, and with zero rotation around Z applied.
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// Support mesh is only valid if this->is_step_done(slaposBasePool) is true.
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const TriangleMesh& pad_mesh() const;
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// This will return the transformed mesh which is cached
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const TriangleMesh& transformed_mesh() const;
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std::vector<sla::SupportPoint> transformed_support_points() const;
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// Get the needed Z elevation for the model geometry if supports should be
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// displayed. This Z offset should also be applied to the support
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// geometries. Note that this is not the same as the value stored in config
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// as the pad height also needs to be considered.
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double get_elevation() const;
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// This method returns the needed elevation according to the processing
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// status. If the supports are not ready, it is zero, if they are and the
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// pad is not, then without the pad, otherwise the full value is returned.
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double get_current_elevation() const;
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// This method returns the support points of this SLAPrintObject.
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const std::vector<sla::SupportPoint>& get_support_points() const;
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private:
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template <class T> inline static T level(const SliceRecord& sr) {
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static_assert(std::is_arithmetic<T>::value, "Arithmetic only!");
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return std::is_integral<T>::value ? T(sr.print_level()) : T(sr.slice_level());
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}
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template <class T> inline static SliceRecord create_slice_record(T val) {
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static_assert(std::is_arithmetic<T>::value, "Arithmetic only!");
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return std::is_integral<T>::value ? SliceRecord{ coord_t(val), 0.f, 0.f } : SliceRecord{ 0, float(val), 0.f };
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}
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// This is a template method for searching the slice index either by
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// an integer key: print_level or a floating point key: slice_level.
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// The eps parameter gives the max deviation in + or - direction.
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//
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// This method can be used in const or non-const contexts as well.
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template<class Container, class T>
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static auto closest_slice_record(Container& cont, T lvl, T eps) -> decltype (cont.begin())
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{
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if(cont.empty()) return cont.end();
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if(cont.size() == 1 && std::abs(level<T>(cont.front()) - lvl) > eps)
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return cont.end();
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SliceRecord query = create_slice_record(lvl);
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auto it = std::lower_bound(cont.begin(), cont.end(), query,
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[](const SliceRecord& r1,
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const SliceRecord& r2)
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{
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return level<T>(r1) < level<T>(r2);
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});
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T diff = std::abs(level<T>(*it) - lvl);
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if(it != cont.begin()) {
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auto it_prev = std::prev(it);
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T diff_prev = std::abs(level<T>(*it_prev) - lvl);
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if(diff_prev < diff) { diff = diff_prev; it = it_prev; }
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}
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if(diff > eps) it = cont.end();
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return it;
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}
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public:
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// /////////////////////////////////////////////////////////////////////////
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//
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// These methods should be callable on the client side (e.g. UI thread)
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// when the appropriate steps slaposObjectSlice and slaposSliceSupports
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// are ready. All the print objects are processed before slapsRasterize so
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// it is safe to call them during and/or after slapsRasterize.
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//
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// /////////////////////////////////////////////////////////////////////////
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// Retrieve the slice index.
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const std::vector<SliceRecord>& get_slice_index() const;
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const std::vector<ExPolygons>& get_model_slices() const;
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const std::vector<ExPolygons>& get_support_slices() const;
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// Search slice index for the closest slice to given print_level.
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// max_epsilon gives the allowable deviation of the returned slice record's
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// level.
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const SliceRecord& closest_slice_to_print_level(
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coord_t print_level, coord_t max_epsilon = coord_t(SCALED_EPSILON)) const
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{
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auto it = closest_slice_record(m_slice_index, print_level, max_epsilon);
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if (it == m_slice_index.end()) return SliceRecord::EMPTY;
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return *it;
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}
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// Search slice index for the closest slice to given slice_level.
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// max_epsilon gives the allowable deviation of the returned slice record's
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// level.
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const SliceRecord& closest_slice_to_slice_level(
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float slice_level, float max_epsilon = float(EPSILON)) const
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{
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auto it = closest_slice_record(m_slice_index, slice_level, max_epsilon);
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if (it == m_slice_index.end()) return SliceRecord::EMPTY;
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return *it;
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}
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protected:
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// to be called from SLAPrint only.
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friend class SLAPrint;
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SLAPrintObject(SLAPrint* print, ModelObject* model_object);
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~SLAPrintObject();
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void config_apply(const ConfigBase &other, bool ignore_nonexistent = false) { this->m_config.apply(other, ignore_nonexistent); }
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void config_apply_only(const ConfigBase &other, const t_config_option_keys &keys, bool ignore_nonexistent = false)
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{ this->m_config.apply_only(other, keys, ignore_nonexistent); }
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void set_trafo(const Transform3d& trafo) {
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m_transformed_rmesh.invalidate([this, &trafo](){ m_trafo = trafo; });
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}
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void set_instances(const std::vector<Instance> &instances) { m_instances = instances; }
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// Invalidates the step, and its depending steps in SLAPrintObject and SLAPrint.
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bool invalidate_step(SLAPrintObjectStep step);
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bool invalidate_all_steps();
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// Invalidate steps based on a set of parameters changed.
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bool invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys);
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// Which steps have to be performed. Implicitly: all
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// to be accessible from SLAPrint
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std::vector<bool> m_stepmask;
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private:
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// Object specific configuration, pulled from the configuration layer.
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SLAPrintObjectConfig m_config;
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// Translation in Z + Rotation by Y and Z + Scaling / Mirroring.
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Transform3d m_trafo = Transform3d::Identity();
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std::vector<Instance> m_instances;
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// Individual 2d slice polygons from lower z to higher z levels
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std::vector<ExPolygons> m_model_slices;
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// Exact (float) height levels mapped to the slices. Each record contains
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// the index to the model and the support slice vectors.
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std::vector<SliceRecord> m_slice_index;
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std::vector<float> m_model_height_levels;
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// Caching the transformed (m_trafo) raw mesh of the object
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mutable CachedObject<TriangleMesh> m_transformed_rmesh;
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class SupportData;
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std::unique_ptr<SupportData> m_supportdata;
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};
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using PrintObjects = std::vector<SLAPrintObject*>;
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class TriangleMesh;
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struct SLAPrintStatistics
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{
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SLAPrintStatistics() { clear(); }
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std::string estimated_print_time;
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double objects_used_material;
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double support_used_material;
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size_t slow_layers_count;
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size_t fast_layers_count;
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double total_cost;
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double total_weight;
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// Config with the filled in print statistics.
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DynamicConfig config() const;
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// Config with the statistics keys populated with placeholder strings.
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static DynamicConfig placeholders();
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// Replace the print statistics placeholders in the path.
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std::string finalize_output_path(const std::string &path_in) const;
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void clear() {
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estimated_print_time.clear();
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objects_used_material = 0.;
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support_used_material = 0.;
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slow_layers_count = 0;
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fast_layers_count = 0;
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total_cost = 0.;
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total_weight = 0.;
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}
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};
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/**
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* @brief This class is the high level FSM for the SLA printing process.
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*
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* It should support the background processing framework and contain the
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* metadata for the support geometries and their slicing. It should also
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* dispatch the SLA printing configuration values to the appropriate calculation
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* steps.
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*/
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class SLAPrint : public PrintBaseWithState<SLAPrintStep, slapsCount>
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{
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private: // Prevents erroneous use by other classes.
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typedef PrintBaseWithState<SLAPrintStep, slapsCount> Inherited;
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public:
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// An aggregation of SliceRecord-s from all the print objects for each
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// occupied layer. Slice record levels dont have to match exactly.
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// They are unified if the level difference is within +/- SCALED_EPSILON
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struct PrintLayer {
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coord_t level;
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// The collection of slice records for the current level.
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std::vector<std::reference_wrapper<const SliceRecord>> slices;
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explicit PrintLayer(coord_t lvl) : level(lvl) {}
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// for being sorted in their container (see m_printer_input)
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bool operator<(const PrintLayer& other) const {
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return level < other.level;
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}
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};
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SLAPrint(): m_stepmask(slapsCount, true) {}
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virtual ~SLAPrint() override { this->clear(); }
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PrinterTechnology technology() const noexcept override { return ptSLA; }
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void clear() override;
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bool empty() const override { return m_objects.empty(); }
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ApplyStatus apply(const Model &model, const DynamicPrintConfig &config) override;
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void set_task(const TaskParams ¶ms) override;
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void process() override;
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void finalize() override;
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// Returns true if an object step is done on all objects and there's at least one object.
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bool is_step_done(SLAPrintObjectStep step) const;
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// Returns true if the last step was finished with success.
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bool finished() const override { return this->is_step_done(slaposIndexSlices) && this->Inherited::is_step_done(slapsRasterize); }
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template<class Fmt> void export_raster(const std::string& fname) {
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if(m_printer) m_printer->save<Fmt>(fname);
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}
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const PrintObjects& objects() const { return m_objects; }
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const SLAPrintConfig& print_config() const { return m_print_config; }
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const SLAPrinterConfig& printer_config() const { return m_printer_config; }
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const SLAMaterialConfig& material_config() const { return m_material_config; }
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const SLAPrintObjectConfig& default_object_config() const { return m_default_object_config; }
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std::string output_filename() const override;
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const SLAPrintStatistics& print_statistics() const { return m_print_statistics; }
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std::string validate() const override;
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// The aggregated and leveled print records from various objects.
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// TODO: use this structure for the preview in the future.
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const std::vector<PrintLayer>& print_layers() const { return m_printer_input; }
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private:
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using SLAPrinter = FilePrinter<FilePrinterFormat::SLA_PNGZIP>;
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using SLAPrinterPtr = std::unique_ptr<SLAPrinter>;
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// Invalidate steps based on a set of parameters changed.
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bool invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys);
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void fill_statistics();
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SLAPrintConfig m_print_config;
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SLAPrinterConfig m_printer_config;
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SLAMaterialConfig m_material_config;
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SLAPrintObjectConfig m_default_object_config;
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PrintObjects m_objects;
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std::vector<bool> m_stepmask;
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// Ready-made data for rasterization.
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std::vector<PrintLayer> m_printer_input;
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// The printer itself
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SLAPrinterPtr m_printer;
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// Estimated print time, material consumed.
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SLAPrintStatistics m_print_statistics;
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friend SLAPrintObject;
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};
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} // namespace Slic3r
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#endif /* slic3r_SLAPrint_hpp_ */
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