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ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE -> Added 'keep min' option to smoothing algorithm

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This commit is contained in:
Enrico Turri 2019-11-20 14:06:30 +01:00
parent 955439b3ba
commit aea32ffe72
5 changed files with 48 additions and 28 deletions
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24
src/libslic3r/Slicing.cpp
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@ -346,9 +346,9 @@ std::vector<coordf_t> layer_height_profile_adaptive(
return layer_height_profile; return layer_height_profile;
} }
std::vector<double> smooth_height_profile(const std::vector<double>& profile, const SlicingParameters& slicing_params, unsigned int radius) std::vector<double> smooth_height_profile(const std::vector<double>& profile, const SlicingParameters& slicing_params, const HeightProfileSmoothingParams& smoothing_params)
{ {
auto gauss_blur = [&slicing_params](const std::vector<double>& profile, unsigned int radius) -> std::vector<double> { auto gauss_blur = [&slicing_params](const std::vector<double>& profile, const HeightProfileSmoothingParams& smoothing_params) -> std::vector<double> {
auto gauss_kernel = [] (unsigned int radius) -> std::vector<double> { auto gauss_kernel = [] (unsigned int radius) -> std::vector<double> {
unsigned int size = 2 * radius + 1; unsigned int size = 2 * radius + 1;
std::vector<double> ret; std::vector<double> ret;
@ -375,6 +375,7 @@ std::vector<double> smooth_height_profile(const std::vector<double>& profile, co
if ((int)profile.size() - (int)skip_count < 6) if ((int)profile.size() - (int)skip_count < 6)
return profile; return profile;
unsigned int radius = std::max(smoothing_params.radius, (unsigned int)1);
std::vector<double> kernel = gauss_kernel(radius); std::vector<double> kernel = gauss_kernel(radius);
int two_radius = 2 * (int)radius; int two_radius = 2 * (int)radius;
@ -388,15 +389,16 @@ std::vector<double> smooth_height_profile(const std::vector<double>& profile, co
ret.push_back(profile[i]); ret.push_back(profile[i]);
} }
// smooth the rest of the profile // smooth the rest of the profile by biasing a gaussian blur
double med_h = 0.5 * (slicing_params.min_layer_height + slicing_params.max_layer_height); // the bias moves the smoothed profile closer to the min_layer_height
double half_delta_h = 0.5 * (slicing_params.max_layer_height - slicing_params.min_layer_height); double delta_h = slicing_params.max_layer_height - slicing_params.min_layer_height;
double inv_half_delta_h = (half_delta_h > 0.0) ? 1.0 / half_delta_h : 1.0; double inv_delta_h = (delta_h != 0.0) ? 1.0 / delta_h : 1.0;
double max_dz_band = (double)radius * slicing_params.layer_height; double max_dz_band = (double)radius * slicing_params.layer_height;
for (size_t i = skip_count; i < size; i += 2) for (size_t i = skip_count; i < size; i += 2)
{ {
double zi = profile[i]; double zi = profile[i];
double hi = profile[i + 1];
ret.push_back(zi); ret.push_back(zi);
ret.push_back(0.0); ret.push_back(0.0);
double& height = ret.back(); double& height = ret.back();
@ -409,20 +411,22 @@ std::vector<double> smooth_height_profile(const std::vector<double>& profile, co
double dz = std::abs(zi - profile[j]); double dz = std::abs(zi - profile[j]);
if (dz * slicing_params.layer_height <= max_dz_band) if (dz * slicing_params.layer_height <= max_dz_band)
{ {
double dh = std::abs(profile[j + 1] - med_h); double dh = std::abs(slicing_params.max_layer_height - profile[j + 1]);
double weight = kernel[kernel_id] * dh * inv_half_delta_h; double weight = kernel[kernel_id] * sqrt(dh * inv_delta_h);
height += weight * profile[j + 1]; height += weight * profile[j + 1];
weight_total += weight; weight_total += weight;
} }
} }
height = clamp(slicing_params.min_layer_height, slicing_params.max_layer_height, (weight_total != 0.0) ? height /= weight_total : profile[i + 1]); height = clamp(slicing_params.min_layer_height, slicing_params.max_layer_height, (weight_total != 0.0) ? height /= weight_total : hi);
if (smoothing_params.keep_min)
height = std::min(height, hi);
} }
return ret; return ret;
}; };
return gauss_blur(profile, std::max(radius, (unsigned int)1)); return gauss_blur(profile, smoothing_params);
} }
void adjust_layer_height_profile( void adjust_layer_height_profile(

14
src/libslic3r/Slicing.hpp
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@ -147,10 +147,18 @@ extern std::vector<double> layer_height_profile_adaptive(
const SlicingParameters& slicing_params, const SlicingParameters& slicing_params,
const ModelObject& object, float cusp_value); const ModelObject& object, float cusp_value);
struct HeightProfileSmoothingParams
{
unsigned int radius;
bool keep_min;
HeightProfileSmoothingParams() : radius(5), keep_min(false) {}
HeightProfileSmoothingParams(unsigned int radius, bool keep_min) : radius(radius), keep_min(keep_min) {}
};
extern std::vector<double> smooth_height_profile( extern std::vector<double> smooth_height_profile(
const std::vector<double>& profile, const std::vector<double>& profile, const SlicingParameters& slicing_params,
const SlicingParameters& slicing_params, const HeightProfileSmoothingParams& smoothing_params);
unsigned int radius);
#else #else
extern std::vector<coordf_t> layer_height_profile_adaptive( extern std::vector<coordf_t> layer_height_profile_adaptive(
const SlicingParameters &slicing_params, const SlicingParameters &slicing_params,

24
src/slic3r/GUI/GLCanvas3D.cpp
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@ -132,7 +132,6 @@ GLCanvas3D::LayersEditing::LayersEditing()
, m_layer_height_profile_modified(false) , m_layer_height_profile_modified(false)
#if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
, m_adaptive_cusp(0.2f) , m_adaptive_cusp(0.2f)
, m_smooth_radius(5)
#endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
, state(Unknown) , state(Unknown)
, band_width(2.0f) , band_width(2.0f)
@ -283,7 +282,7 @@ void GLCanvas3D::LayersEditing::render_overlay(const GLCanvas3D& canvas) const
ImGui::Separator(); ImGui::Separator();
if (imgui.button(_(L("Smooth")))) if (imgui.button(_(L("Smooth"))))
wxPostEvent((wxEvtHandler*)canvas.get_wxglcanvas(), Event<unsigned int>(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, m_smooth_radius)); wxPostEvent((wxEvtHandler*)canvas.get_wxglcanvas(), HeightProfileSmoothEvent(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, m_smooth_params ));
ImGui::SameLine(); ImGui::SameLine();
ImGui::SetCursorPosX(text_align); ImGui::SetCursorPosX(text_align);
@ -291,9 +290,16 @@ void GLCanvas3D::LayersEditing::render_overlay(const GLCanvas3D& canvas) const
ImGui::SameLine(); ImGui::SameLine();
ImGui::PushItemWidth(120.0f); ImGui::PushItemWidth(120.0f);
ImGui::SetCursorPosX(widget_align); ImGui::SetCursorPosX(widget_align);
int radius = (int)m_smooth_radius; int radius = (int)m_smooth_params.radius;
if (ImGui::SliderInt("##1", &radius, 1, 10)) if (ImGui::SliderInt("##1", &radius, 1, 10))
m_smooth_radius = (unsigned int)radius; m_smooth_params.radius = (unsigned int)radius;
ImGui::SetCursorPosX(text_align);
imgui.text(_(L("Keep min")));
ImGui::SameLine();
ImGui::PushItemWidth(120.0f);
ImGui::SetCursorPosX(widget_align);
imgui.checkbox("##2", m_smooth_params.keep_min);
ImGui::Separator(); ImGui::Separator();
if (imgui.button(_(L("Reset")))) if (imgui.button(_(L("Reset"))))
@ -609,9 +615,9 @@ void GLCanvas3D::LayersEditing::adaptive_layer_height_profile(GLCanvas3D& canvas
canvas.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS)); canvas.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS));
} }
void GLCanvas3D::LayersEditing::smooth_layer_height_profile(GLCanvas3D& canvas, unsigned int radius) void GLCanvas3D::LayersEditing::smooth_layer_height_profile(GLCanvas3D& canvas, const HeightProfileSmoothingParams& smoothing_params)
{ {
m_layer_height_profile = smooth_height_profile(m_layer_height_profile, *m_slicing_parameters, radius); m_layer_height_profile = smooth_height_profile(m_layer_height_profile, *m_slicing_parameters, smoothing_params);
const_cast<ModelObject*>(m_model_object)->layer_height_profile = m_layer_height_profile; const_cast<ModelObject*>(m_model_object)->layer_height_profile = m_layer_height_profile;
m_layers_texture.valid = false; m_layers_texture.valid = false;
canvas.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS)); canvas.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS));
@ -1245,7 +1251,7 @@ wxDEFINE_EVENT(EVT_GLCANVAS_REDO, SimpleEvent);
#if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
wxDEFINE_EVENT(EVT_GLCANVAS_RESET_LAYER_HEIGHT_PROFILE, SimpleEvent); wxDEFINE_EVENT(EVT_GLCANVAS_RESET_LAYER_HEIGHT_PROFILE, SimpleEvent);
wxDEFINE_EVENT(EVT_GLCANVAS_ADAPTIVE_LAYER_HEIGHT_PROFILE, Event<float>); wxDEFINE_EVENT(EVT_GLCANVAS_ADAPTIVE_LAYER_HEIGHT_PROFILE, Event<float>);
wxDEFINE_EVENT(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, Event<unsigned int>); wxDEFINE_EVENT(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, HeightProfileSmoothEvent);
#endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
#if ENABLE_THUMBNAIL_GENERATOR #if ENABLE_THUMBNAIL_GENERATOR
@ -1564,9 +1570,9 @@ void GLCanvas3D::adaptive_layer_height_profile(float cusp)
m_dirty = true; m_dirty = true;
} }
void GLCanvas3D::smooth_layer_height_profile(unsigned int radius) void GLCanvas3D::smooth_layer_height_profile(const HeightProfileSmoothingParams& smoothing_params)
{ {
m_layers_editing.smooth_layer_height_profile(*this, radius); m_layers_editing.smooth_layer_height_profile(*this, smoothing_params);
m_layers_editing.state = LayersEditing::Completed; m_layers_editing.state = LayersEditing::Completed;
m_dirty = true; m_dirty = true;
} }

10
src/slic3r/GUI/GLCanvas3D.hpp
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@ -81,6 +81,8 @@ template <size_t N> using Vec2dsEvent = ArrayEvent<Vec2d, N>;
using Vec3dEvent = Event<Vec3d>; using Vec3dEvent = Event<Vec3d>;
template <size_t N> using Vec3dsEvent = ArrayEvent<Vec3d, N>; template <size_t N> using Vec3dsEvent = ArrayEvent<Vec3d, N>;
using HeightProfileSmoothEvent = Event<HeightProfileSmoothingParams>;
wxDECLARE_EVENT(EVT_GLCANVAS_INIT, SimpleEvent); wxDECLARE_EVENT(EVT_GLCANVAS_INIT, SimpleEvent);
wxDECLARE_EVENT(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS, SimpleEvent); wxDECLARE_EVENT(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS, SimpleEvent);
wxDECLARE_EVENT(EVT_GLCANVAS_RIGHT_CLICK, RBtnEvent); wxDECLARE_EVENT(EVT_GLCANVAS_RIGHT_CLICK, RBtnEvent);
@ -107,7 +109,7 @@ wxDECLARE_EVENT(EVT_GLCANVAS_REDO, SimpleEvent);
#if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
wxDECLARE_EVENT(EVT_GLCANVAS_RESET_LAYER_HEIGHT_PROFILE, SimpleEvent); wxDECLARE_EVENT(EVT_GLCANVAS_RESET_LAYER_HEIGHT_PROFILE, SimpleEvent);
wxDECLARE_EVENT(EVT_GLCANVAS_ADAPTIVE_LAYER_HEIGHT_PROFILE, Event<float>); wxDECLARE_EVENT(EVT_GLCANVAS_ADAPTIVE_LAYER_HEIGHT_PROFILE, Event<float>);
wxDECLARE_EVENT(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, Event<unsigned int>); wxDECLARE_EVENT(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, HeightProfileSmoothEvent);
#endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
class GLCanvas3D class GLCanvas3D
@ -182,7 +184,7 @@ private:
#if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
mutable float m_adaptive_cusp; mutable float m_adaptive_cusp;
mutable unsigned int m_smooth_radius; mutable HeightProfileSmoothingParams m_smooth_params;
#endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
class LayersTexture class LayersTexture
@ -233,7 +235,7 @@ private:
void reset_layer_height_profile(GLCanvas3D& canvas); void reset_layer_height_profile(GLCanvas3D& canvas);
#if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
void adaptive_layer_height_profile(GLCanvas3D& canvas, float cusp); void adaptive_layer_height_profile(GLCanvas3D& canvas, float cusp);
void smooth_layer_height_profile(GLCanvas3D& canvas, unsigned int radius); void smooth_layer_height_profile(GLCanvas3D& canvas, const HeightProfileSmoothingParams& smoothing_paramsn);
#endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
static float get_cursor_z_relative(const GLCanvas3D& canvas); static float get_cursor_z_relative(const GLCanvas3D& canvas);
@ -531,7 +533,7 @@ public:
#if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
void reset_layer_height_profile(); void reset_layer_height_profile();
void adaptive_layer_height_profile(float cusp); void adaptive_layer_height_profile(float cusp);
void smooth_layer_height_profile(unsigned int radius); void smooth_layer_height_profile(const HeightProfileSmoothingParams& smoothing_params);
#endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
bool is_reload_delayed() const; bool is_reload_delayed() const;

2
src/slic3r/GUI/Plater.cpp
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@ -2090,7 +2090,7 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
#if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #if ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
view3D_canvas->Bind(EVT_GLCANVAS_RESET_LAYER_HEIGHT_PROFILE, [this](SimpleEvent&) { this->view3D->get_canvas3d()->reset_layer_height_profile(); }); view3D_canvas->Bind(EVT_GLCANVAS_RESET_LAYER_HEIGHT_PROFILE, [this](SimpleEvent&) { this->view3D->get_canvas3d()->reset_layer_height_profile(); });
view3D_canvas->Bind(EVT_GLCANVAS_ADAPTIVE_LAYER_HEIGHT_PROFILE, [this](Event<float>& evt) { this->view3D->get_canvas3d()->adaptive_layer_height_profile(evt.data); }); view3D_canvas->Bind(EVT_GLCANVAS_ADAPTIVE_LAYER_HEIGHT_PROFILE, [this](Event<float>& evt) { this->view3D->get_canvas3d()->adaptive_layer_height_profile(evt.data); });
view3D_canvas->Bind(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, [this](Event<unsigned int>& evt) { this->view3D->get_canvas3d()->smooth_layer_height_profile(evt.data); }); view3D_canvas->Bind(EVT_GLCANVAS_SMOOTH_LAYER_HEIGHT_PROFILE, [this](HeightProfileSmoothEvent& evt) { this->view3D->get_canvas3d()->smooth_layer_height_profile(evt.data); });
#endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE #endif // ENABLE_ADAPTIVE_LAYER_HEIGHT_PROFILE
// 3DScene/Toolbar: // 3DScene/Toolbar: