Slic3r::Polyline ClipperPath_to_Slic3rPolyline(const ClipperLib::Path &input)
{
Polyline retval;
for (ClipperLib::Path::const_iterator pit = input.begin(); pit != input.end(); ++pit)
retval.points.emplace_back(pit->X, pit->Y);
return retval;
}
void buildMansardShape(const utymap::meshing::Polygon& polygon, ClipperLib::Path& offsetShape, std::size_t index)
{
std::reverse(offsetShape.begin(), offsetShape.end());
// build top
utymap::meshing::Polygon topShape(offsetShape.size(), 0);
std::vector<utymap::meshing::Vector2> topShapeVertices;
topShapeVertices.reserve(offsetShape.size());
for (const auto& p : offsetShape) {
topShapeVertices.push_back(utymap::meshing::Vector2(p.X / Scale, p.Y/ Scale));
}
topShape.addContour(topShapeVertices);
auto topOptions = utymap::meshing::MeshBuilder::Options{ 0, 0, colorNoiseFreq_, height_, getColorGradient(), minHeight_ };
builderContext_.meshBuilder.addPolygon(meshContext_.mesh, topShape, topOptions);
// build sides
auto sideOptions = utymap::meshing::MeshBuilder::Options { 0, 0, colorNoiseFreq_, 0, getColorGradient(), 0 };
double topHeight = minHeight_ + height_;
auto size = polygon.points.size();
for (std::size_t i = 0; i < size; i += 2) {
auto topIndex = i;
auto bottomIndex = (index + i) % size;
auto nextTopIndex = (i + 2) % size;
auto nextBottomIndex = (index + i + 2) % size;
auto v0 = utymap::meshing::Vector3(polygon.points[bottomIndex], minHeight_, polygon.points[bottomIndex + 1]);
auto v1 = utymap::meshing::Vector3(polygon.points[nextBottomIndex], minHeight_, polygon.points[nextBottomIndex + 1]);
auto v2 = utymap::meshing::Vector3(topShape.points[nextTopIndex], topHeight, topShape.points[nextTopIndex + 1]);
auto v3 = utymap::meshing::Vector3(topShape.points[topIndex], topHeight, topShape.points[topIndex + 1]);
builderContext_.meshBuilder.addTriangle(meshContext_.mesh, v0, v2, v3, sideOptions, false);
builderContext_.meshBuilder.addTriangle(meshContext_.mesh, v2, v0, v1, sideOptions, false);
}
}
void BooleanTool::pathObjectToPolygons(
const PathObject* object,
ClipperLib::Paths& polygons,
PolyMap& polymap)
{
object->update();
polygons.reserve(polygons.size() + object->parts().size());
for (const auto& part : object->parts())
{
const PathCoordVector& path_coords = part.path_coords;
auto path_coords_end = path_coords.size();
if (part.isClosed())
--path_coords_end;
ClipperLib::Path polygon;
for (auto i = 0u; i < path_coords_end; ++i)
{
auto point = MapCoord { path_coords[i].pos };
polygon.push_back(ClipperLib::IntPoint(point.nativeX(), point.nativeY()));
polymap.insertMulti(polygon.back(), std::make_pair(&part, &path_coords[i]));
}
bool orientation = Orientation(polygon);
if ( (&part == &object->parts().front()) != orientation )
{
std::reverse(polygon.begin(), polygon.end());
}
// Push_back shall move the polygon.
static_assert(std::is_nothrow_move_constructible<ClipperLib::Path>::value, "ClipperLib::Path must be nothrow move constructible");
polygons.push_back(polygon);
}
}
void
ClipperPath_to_Slic3rMultiPoint(const ClipperLib::Path &input, T &output)
{
output.points.clear();
for (ClipperLib::Path::const_iterator pit = input.begin(); pit != input.end(); ++pit) {
output.points.push_back(Slic3r::Point( (*pit).X, (*pit).Y ));
}
}
void scaleClipperPolygon(ClipperLib::Path &polygon)
{
PROFILE_FUNC();
for (ClipperLib::Path::iterator pit = polygon.begin(); pit != polygon.end(); ++pit) {
pit->X <<= CLIPPER_OFFSET_POWER_OF_2;
pit->Y <<= CLIPPER_OFFSET_POWER_OF_2;
}
}
T
ClipperPath_to_Slic3rMultiPoint(const ClipperLib::Path &input)
{
T retval;
for (ClipperLib::Path::const_iterator pit = input.begin(); pit != input.end(); ++pit)
retval.points.push_back(Point( (*pit).X, (*pit).Y ));
return retval;
}
DLL_PUBLIC double CDECL area(ClipperLib::IntPoint* path, size_t count) {
ClipperLib::Path v = ClipperLib::Path();
for(size_t i = 0; i < count; i++) {
v.emplace(v.end(), path[i].X, path[i].Y);
}
return ClipperLib::Area(v);
}
//==============================================================
// Static functions
//==============================================================
DLL_PUBLIC bool CDECL orientation(ClipperLib::IntPoint* path, size_t count) {
ClipperLib::Path v = ClipperLib::Path();
for(size_t i = 0; i < count; i++) {
v.emplace(v.end(), path[i].X, path[i].Y);
}
return ClipperLib::Orientation(v);
}
void
ClipperPath_to_Slic3rMultiPoint(const ClipperLib::Path &input, T* output)
{
PROFILE_FUNC();
output->points.clear();
output->points.reserve(input.size());
for (ClipperLib::Path::const_iterator pit = input.begin(); pit != input.end(); ++pit)
output->points.push_back(Slic3r::Point( (*pit).X, (*pit).Y ));
}
void unscaleClipperPolygon(ClipperLib::Path &polygon)
{
PROFILE_FUNC();
for (ClipperLib::Path::iterator pit = polygon.begin(); pit != polygon.end(); ++pit) {
pit->X += CLIPPER_OFFSET_SCALE_ROUNDING_DELTA;
pit->Y += CLIPPER_OFFSET_SCALE_ROUNDING_DELTA;
pit->X >>= CLIPPER_OFFSET_POWER_OF_2;
pit->Y >>= CLIPPER_OFFSET_POWER_OF_2;
}
}
std::string
SVG::get_path_d(const ClipperLib::Path &path, double scale, bool closed) const
{
std::ostringstream d;
d << "M ";
for (ClipperLib::Path::const_iterator p = path.begin(); p != path.end(); ++p) {
d << COORD(scale * p->X - origin.x) << " ";
d << COORD(scale * p->Y - origin.y) << " ";
}
if (closed) d << "z";
return d.str();
}
void Grasp_Calculator::path_to_double_polygon(DPolygon2D &double_polygon, ClipperLib::Path int_polygon)
{
ClipperLib::cInt factor = 100000;
double_polygon.clear();
for (std::vector<IntPoint>::iterator ip = int_polygon.begin(); ip != int_polygon.end(); ++ip)
{
DoublePoint2D d2p;
d2p.x = ((double)ip->X) / factor;
d2p.y = ((double)ip->Y) / factor;
double_polygon.push_back(d2p);
}
}
DLL_PUBLIC void CDECL add_offset_path(ClipperLib::ClipperOffset *ptr, ClipperLib::IntPoint* path, size_t count,
ClipperLib::JoinType joinType, ClipperLib::EndType endType) {
ClipperLib::Path v = ClipperLib::Path();
for(size_t i = 0; i < count; i++) {
v.emplace(v.end(), path[i].X, path[i].Y);
}
try {
ptr->AddPath(v, joinType, endType);
} catch(ClipperLib::clipperException e) {
printf(e.what());
}
}
DLL_PUBLIC bool CDECL add_path(ClipperLib::Clipper *ptr, ClipperLib::IntPoint* path, size_t count, ClipperLib::PolyType polyType, bool closed) {
ClipperLib::Path v = ClipperLib::Path();
for(size_t i = 0; i < count; i++) {
v.emplace(v.end(), path[i].X, path[i].Y);
}
bool result = false;
try {
result = ptr->AddPath(v, polyType, closed);
} catch(ClipperLib::clipperException e) {
printf(e.what());
}
return result;
}
geo::Polygon<geo::Ring<Vector>> Environment::subtract(geo::Polygon<geo::Ring<Vector>> const& poly, geo::Ring<Vector> const& ring) {
ClipperLib::Path subj;
ClipperLib::Paths solution;
ClipperLib::Clipper c;
for (Vector const& v : poly.ering)
subj.push_back(ClipperLib::IntPoint((int)v.x, (int)v.y));
c.AddPath(subj, ClipperLib::ptSubject, true);
for (Ring const& ring : poly.irings) {
subj.clear();
for (Vector const& v : ring)
subj.push_back(ClipperLib::IntPoint((int)v.x, (int)v.y));
std::reverse(subj.begin(), subj.end());
c.AddPath(subj, ClipperLib::ptSubject, true);
}
subj.clear();
for (Vector const& v : ring)
subj.push_back(ClipperLib::IntPoint((int)v.x, (int)v.y));
c.AddPath(subj, ClipperLib::ptClip, true);
c.Execute(ClipperLib::ctDifference, solution);
geo::Polygon<geo::Ring<Vector>> ans;
for (ClipperLib::IntPoint const& pt : solution[0]) {
ans.ering.push_back({pt.X, pt.Y});
}
for (int i = 1; i < solution.size(); ++i) {
ClipperLib::Path const& path = solution[i];
geo::Ring<Vector> ring;
for (ClipperLib::IntPoint const& pt : path)
ring.push_back({pt.X, pt.Y});
ans.irings.push_back(ring);
}
geo::correct(ans);
return ans;
}
