ceea9de8b8
'thick_bridges' to switch between the Slic3r vs. S3D/Cura/Ideamaker way of printing 1st object layer over supports. Simplified the PresetHints.
247 lines
11 KiB
C++
247 lines
11 KiB
C++
#include "Flow.hpp"
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#include "I18N.hpp"
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#include "Print.hpp"
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#include <cmath>
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#include <assert.h>
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#include <boost/algorithm/string/predicate.hpp>
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// Overlap factor of perimeter lines. Currently no overlap.
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// #define HAS_PERIMETER_LINE_OVERLAP
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#ifdef HAS_PERIMETER_LINE_OVERLAP
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#define PERIMETER_LINE_OVERLAP_FACTOR 1.0
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#endif
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// Mark string for localization and translate.
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#define L(s) Slic3r::I18N::translate(s)
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namespace Slic3r {
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FlowErrorNegativeSpacing::FlowErrorNegativeSpacing() :
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FlowError("Flow::spacing() produced negative spacing. Did you set some extrusion width too small?") {}
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FlowErrorNegativeFlow::FlowErrorNegativeFlow() :
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FlowError("Flow::mm3_per_mm() produced negative flow. Did you set some extrusion width too small?") {}
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// This static method returns a sane extrusion width default.
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float Flow::auto_extrusion_width(FlowRole role, float nozzle_diameter)
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{
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switch (role) {
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case frSupportMaterial:
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case frSupportMaterialInterface:
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case frTopSolidInfill:
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return nozzle_diameter;
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default:
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case frExternalPerimeter:
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case frPerimeter:
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case frSolidInfill:
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case frInfill:
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return 1.125f * nozzle_diameter;
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}
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}
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// Used by the Flow::extrusion_width() funtion to provide hints to the user on default extrusion width values,
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// and to provide reasonable values to the PlaceholderParser.
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static inline FlowRole opt_key_to_flow_role(const std::string &opt_key)
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{
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if (opt_key == "perimeter_extrusion_width" ||
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// or all the defaults:
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opt_key == "extrusion_width" || opt_key == "first_layer_extrusion_width")
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return frPerimeter;
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else if (opt_key == "external_perimeter_extrusion_width")
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return frExternalPerimeter;
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else if (opt_key == "infill_extrusion_width")
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return frInfill;
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else if (opt_key == "solid_infill_extrusion_width")
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return frSolidInfill;
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else if (opt_key == "top_infill_extrusion_width")
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return frTopSolidInfill;
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else if (opt_key == "support_material_extrusion_width")
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return frSupportMaterial;
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else
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throw Slic3r::RuntimeError("opt_key_to_flow_role: invalid argument");
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};
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static inline void throw_on_missing_variable(const std::string &opt_key, const char *dependent_opt_key)
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{
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throw FlowErrorMissingVariable((boost::format(L("Cannot calculate extrusion width for %1%: Variable \"%2%\" not accessible.")) % opt_key % dependent_opt_key).str());
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}
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// Used to provide hints to the user on default extrusion width values, and to provide reasonable values to the PlaceholderParser.
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double Flow::extrusion_width(const std::string& opt_key, const ConfigOptionFloatOrPercent* opt, const ConfigOptionResolver& config, const unsigned int first_printing_extruder)
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{
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assert(opt != nullptr);
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bool first_layer = boost::starts_with(opt_key, "first_layer_");
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#if 0
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// This is the logic used for skit / brim, but not for the rest of the 1st layer.
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if (opt->value == 0. && first_layer) {
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// The "first_layer_extrusion_width" was set to zero, try a substitute.
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opt = config.option<ConfigOptionFloatOrPercent>("perimeter_extrusion_width");
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if (opt == nullptr)
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throw_on_missing_variable(opt_key, "perimeter_extrusion_width");
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}
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#endif
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if (opt->value == 0.) {
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// The role specific extrusion width value was set to zero, try the role non-specific extrusion width.
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opt = config.option<ConfigOptionFloatOrPercent>("extrusion_width");
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if (opt == nullptr)
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throw_on_missing_variable(opt_key, "extrusion_width");
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// Use the "layer_height" instead of "first_layer_height".
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first_layer = false;
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}
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if (opt->percent) {
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auto opt_key_layer_height = first_layer ? "first_layer_height" : "layer_height";
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auto opt_layer_height = config.option(opt_key_layer_height);
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if (opt_layer_height == nullptr)
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throw_on_missing_variable(opt_key, opt_key_layer_height);
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double layer_height = opt_layer_height->getFloat();
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if (first_layer && static_cast<const ConfigOptionFloatOrPercent*>(opt_layer_height)->percent) {
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// first_layer_height depends on layer_height.
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opt_layer_height = config.option("layer_height");
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if (opt_layer_height == nullptr)
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throw_on_missing_variable(opt_key, "layer_height");
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layer_height *= 0.01 * opt_layer_height->getFloat();
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}
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return opt->get_abs_value(layer_height);
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}
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if (opt->value == 0.) {
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// If user left option to 0, calculate a sane default width.
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auto opt_nozzle_diameters = config.option<ConfigOptionFloats>("nozzle_diameter");
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if (opt_nozzle_diameters == nullptr)
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throw_on_missing_variable(opt_key, "nozzle_diameter");
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return auto_extrusion_width(opt_key_to_flow_role(opt_key), float(opt_nozzle_diameters->get_at(first_printing_extruder)));
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}
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return opt->value;
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}
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// Used to provide hints to the user on default extrusion width values, and to provide reasonable values to the PlaceholderParser.
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double Flow::extrusion_width(const std::string& opt_key, const ConfigOptionResolver &config, const unsigned int first_printing_extruder)
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{
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return extrusion_width(opt_key, config.option<ConfigOptionFloatOrPercent>(opt_key), config, first_printing_extruder);
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}
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// This constructor builds a Flow object from an extrusion width config setting
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// and other context properties.
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Flow Flow::new_from_config_width(FlowRole role, const ConfigOptionFloatOrPercent &width, float nozzle_diameter, float height)
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{
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if (height <= 0)
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throw Slic3r::InvalidArgument("Invalid flow height supplied to new_from_config_width()");
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float w;
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if (! width.percent && width.value == 0.) {
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// If user left option to 0, calculate a sane default width.
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w = auto_extrusion_width(role, nozzle_diameter);
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} else {
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// If user set a manual value, use it.
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w = float(width.get_abs_value(height));
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}
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return Flow(w, height, nozzle_diameter, false);
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}
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// This constructor builds a Flow object from a given centerline spacing.
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Flow Flow::new_from_spacing(float spacing, float nozzle_diameter, float height)
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{
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if (height <= 0)
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throw Slic3r::InvalidArgument("Invalid flow height supplied to new_from_spacing()");
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// Calculate width from spacing.
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// For normal extrusons, extrusion width is wider than the spacing due to the rounding and squishing of the extrusions.
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float width = float(
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#ifdef HAS_PERIMETER_LINE_OVERLAP
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(spacing + PERIMETER_LINE_OVERLAP_FACTOR * height * (1. - 0.25 * PI));
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#else
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(spacing + height * (1. - 0.25 * PI)));
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#endif
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return Flow(width, height, nozzle_diameter);
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}
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// This method returns the centerline spacing between two adjacent extrusions
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// having the same extrusion width (and other properties).
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float Flow::spacing() const
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{
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#ifdef HAS_PERIMETER_LINE_OVERLAP
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if (m_bridge)
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return m_width + BRIDGE_EXTRA_SPACING;
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// rectangle with semicircles at the ends
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float min_flow_spacing = m_width - m_height * (1. - 0.25 * PI);
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float res = m_width - PERIMETER_LINE_OVERLAP_FACTOR * (m_width - min_flow_spacing);
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#else
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float res = float(m_bridge ? (m_width + BRIDGE_EXTRA_SPACING) : (m_width - m_height * (1. - 0.25 * PI)));
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#endif
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// assert(res > 0.f);
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if (res <= 0.f)
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throw FlowErrorNegativeSpacing();
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return res;
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}
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// This method returns the centerline spacing between an extrusion using this
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// flow and another one using another flow.
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// this->spacing(other) shall return the same value as other.spacing(*this)
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float Flow::spacing(const Flow &other) const
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{
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assert(m_height == other.m_height);
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assert(m_bridge == other.m_bridge);
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float res = float(m_bridge ?
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0.5 * m_width + 0.5 * other.m_width + BRIDGE_EXTRA_SPACING :
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0.5 * this->spacing() + 0.5 * other.spacing());
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// assert(res > 0.f);
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if (res <= 0.f)
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throw FlowErrorNegativeSpacing();
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return res;
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}
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// This method returns extrusion volume per head move unit.
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double Flow::mm3_per_mm() const
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{
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float res = m_bridge ?
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// Area of a circle with dmr of this->width.
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float((m_width * m_width) * 0.25 * PI) :
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// Rectangle with semicircles at the ends. ~ h (w - 0.215 h)
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float(m_height * (m_width - m_height * (1. - 0.25 * PI)));
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//assert(res > 0.);
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if (res <= 0.)
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throw FlowErrorNegativeFlow();
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return res;
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}
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Flow support_material_flow(const PrintObject *object, float layer_height)
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{
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return Flow::new_from_config_width(
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frSupportMaterial,
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// The width parameter accepted by new_from_config_width is of type ConfigOptionFloatOrPercent, the Flow class takes care of the percent to value substitution.
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(object->config().support_material_extrusion_width.value > 0) ? object->config().support_material_extrusion_width : object->config().extrusion_width,
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// if object->config().support_material_extruder == 0 (which means to not trigger tool change, but use the current extruder instead), get_at will return the 0th component.
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float(object->print()->config().nozzle_diameter.get_at(object->config().support_material_extruder-1)),
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(layer_height > 0.f) ? layer_height : float(object->config().layer_height.value));
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}
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Flow support_material_1st_layer_flow(const PrintObject *object, float layer_height)
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{
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const auto &width = (object->print()->config().first_layer_extrusion_width.value > 0) ? object->print()->config().first_layer_extrusion_width : object->config().support_material_extrusion_width;
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return Flow::new_from_config_width(
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frSupportMaterial,
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// The width parameter accepted by new_from_config_width is of type ConfigOptionFloatOrPercent, the Flow class takes care of the percent to value substitution.
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(width.value > 0) ? width : object->config().extrusion_width,
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float(object->print()->config().nozzle_diameter.get_at(object->config().support_material_extruder-1)),
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(layer_height > 0.f) ? layer_height : float(object->config().first_layer_height.get_abs_value(object->config().layer_height.value)));
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}
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Flow support_material_interface_flow(const PrintObject *object, float layer_height)
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{
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return Flow::new_from_config_width(
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frSupportMaterialInterface,
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// The width parameter accepted by new_from_config_width is of type ConfigOptionFloatOrPercent, the Flow class takes care of the percent to value substitution.
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(object->config().support_material_extrusion_width > 0) ? object->config().support_material_extrusion_width : object->config().extrusion_width,
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// if object->config().support_material_interface_extruder == 0 (which means to not trigger tool change, but use the current extruder instead), get_at will return the 0th component.
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float(object->print()->config().nozzle_diameter.get_at(object->config().support_material_interface_extruder-1)),
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(layer_height > 0.f) ? layer_height : float(object->config().layer_height.value));
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}
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}
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