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As an example of using the enum_bitmask infrastructure for type safe

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sets of optional boolean parameters, the cut function "keep upper",
"keep lower" and "flip lower" boolean parameters were converted into
a single type safe enum_bitmask. Such a coding style is certainly
wordier than the original code, but much safer and more readable
than the error prone "boolean, boolean, boolean" function call
parameter list.
This commit is contained in:
Vojtech Bubnik 2021-06-27 17:36:25 +02:00
parent 0f3cabb5d9
commit e4e8c5df12
6 changed files with 38 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

35
src/libslic3r/Model.cpp
View file

@ -1143,17 +1143,18 @@ bool ModelObject::needed_repair() const
return false;
}
ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, bool keep_lower, bool rotate_lower)
ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, ModelObjectCutAttributes attributes)
{
if (!keep_upper && !keep_lower) { return {}; }
if (! attributes.has(ModelObjectCutAttribute::KeepUpper) && ! attributes.has(ModelObjectCutAttribute::KeepLower))
return {};
BOOST_LOG_TRIVIAL(trace) << "ModelObject::cut - start";
// Clone the object to duplicate instances, materials etc.
ModelObject* upper = keep_upper ? ModelObject::new_clone(*this) : nullptr;
ModelObject* lower = keep_lower ? ModelObject::new_clone(*this) : nullptr;
ModelObject* upper = attributes.has(ModelObjectCutAttribute::KeepUpper) ? ModelObject::new_clone(*this) : nullptr;
ModelObject* lower = attributes.has(ModelObjectCutAttribute::KeepLower) ? ModelObject::new_clone(*this) : nullptr;
if (keep_upper) {
if (attributes.has(ModelObjectCutAttribute::KeepUpper)) {
upper->set_model(nullptr);
upper->sla_support_points.clear();
upper->sla_drain_holes.clear();
@ -1162,7 +1163,7 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
upper->input_file.clear();
}
if (keep_lower) {
if (attributes.has(ModelObjectCutAttribute::KeepLower)) {
lower->set_model(nullptr);
lower->sla_support_points.clear();
lower->sla_drain_holes.clear();
@ -1202,8 +1203,10 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
volume->set_transformation(Geometry::Transformation(instance_matrix * volume_matrix));
if (keep_upper) { upper->add_volume(*volume); }
if (keep_lower) { lower->add_volume(*volume); }
if (attributes.has(ModelObjectCutAttribute::KeepUpper))
upper->add_volume(*volume);
if (attributes.has(ModelObjectCutAttribute::KeepLower))
lower->add_volume(*volume);
}
else if (! volume->mesh().empty()) {
@ -1223,19 +1226,19 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
indexed_triangle_set upper_its, lower_its;
mesh.require_shared_vertices();
cut_mesh(mesh.its, float(z), &upper_its, &lower_its);
if (keep_upper) {
if (attributes.has(ModelObjectCutAttribute::KeepUpper)) {
upper_mesh = TriangleMesh(upper_its);
upper_mesh.repair();
upper_mesh.reset_repair_stats();
}
if (keep_lower) {
if (attributes.has(ModelObjectCutAttribute::KeepLower)) {
lower_mesh = TriangleMesh(lower_its);
lower_mesh.repair();
lower_mesh.reset_repair_stats();
}
}
if (keep_upper && upper_mesh.facets_count() > 0) {
if (attributes.has(ModelObjectCutAttribute::KeepUpper) && upper_mesh.facets_count() > 0) {
ModelVolume* vol = upper->add_volume(upper_mesh);
vol->name = volume->name;
// Don't copy the config's ID.
@ -1244,7 +1247,7 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
assert(vol->config.id() != volume->config.id());
vol->set_material(volume->material_id(), *volume->material());
}
if (keep_lower && lower_mesh.facets_count() > 0) {
if (attributes.has(ModelObjectCutAttribute::KeepLower) && lower_mesh.facets_count() > 0) {
ModelVolume* vol = lower->add_volume(lower_mesh);
vol->name = volume->name;
// Don't copy the config's ID.
@ -1255,7 +1258,7 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
// Compute the lower part instances' bounding boxes to figure out where to place
// the upper part
if (keep_upper) {
if (attributes.has(ModelObjectCutAttribute::KeepUpper)) {
for (size_t i = 0; i < instances.size(); i++) {
lower_bboxes[i].merge(instances[i]->transform_mesh_bounding_box(lower_mesh, true));
}
@ -1266,7 +1269,7 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
ModelObjectPtrs res;
if (keep_upper && upper->volumes.size() > 0) {
if (attributes.has(ModelObjectCutAttribute::KeepUpper) && upper->volumes.size() > 0) {
upper->invalidate_bounding_box();
upper->center_around_origin();
@ -1286,7 +1289,7 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
res.push_back(upper);
}
if (keep_lower && lower->volumes.size() > 0) {
if (attributes.has(ModelObjectCutAttribute::KeepLower) && lower->volumes.size() > 0) {
lower->invalidate_bounding_box();
lower->center_around_origin();
@ -1297,7 +1300,7 @@ ModelObjectPtrs ModelObject::cut(size_t instance, coordf_t z, bool keep_upper, b
instance->set_transformation(Geometry::Transformation());
instance->set_offset(offset);
instance->set_rotation(Vec3d(rotate_lower ? Geometry::deg2rad(180.0) : 0.0, 0.0, rot_z));
instance->set_rotation(Vec3d(attributes.has(ModelObjectCutAttribute::FlipLower) ? Geometry::deg2rad(180.0) : 0.0, 0.0, rot_z));
}
res.push_back(lower);

7
src/libslic3r/Model.hpp
View file

@ -2,6 +2,7 @@
#define slic3r_Model_hpp_
#include "libslic3r.h"
#include "enum_bitmask.hpp"
#include "Geometry.hpp"
#include "ObjectID.hpp"
#include "Point.hpp"
@ -227,6 +228,10 @@ enum class ModelVolumeType : int {
SUPPORT_ENFORCER,
};
enum class ModelObjectCutAttribute : int { KeepUpper, KeepLower, FlipLower };
using ModelObjectCutAttributes = enum_bitmask<ModelObjectCutAttribute>;
ENABLE_ENUM_BITMASK_OPERATORS(ModelObjectCutAttribute);
// A printable object, possibly having multiple print volumes (each with its own set of parameters and materials),
// and possibly having multiple modifier volumes, each modifier volume with its set of parameters and materials.
// Each ModelObject may be instantiated mutliple times, each instance having different placement on the print bed,
@ -345,7 +350,7 @@ public:
size_t materials_count() const;
size_t facets_count() const;
bool needed_repair() const;
ModelObjectPtrs cut(size_t instance, coordf_t z, bool keep_upper = true, bool keep_lower = true, bool rotate_lower = false); // Note: z is in world coordinates
ModelObjectPtrs cut(size_t instance, coordf_t z, ModelObjectCutAttributes attributes);
void split(ModelObjectPtrs* new_objects);
void merge();
// Support for non-uniform scaling of instances. If an instance is rotated by angles, which are not multiples of ninety degrees,