mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-11 02:02:22 +00:00
Richard Brice
503 lines
15 KiB
C++
503 lines
15 KiB
C++
#include "taxonomy.h"
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#include "profile_helper.h"
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using namespace ifcopenshell::geometry::taxonomy;
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namespace {
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bool compare(const trimmed_curve& a, const trimmed_curve& b);
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bool compare(const collection& a, const collection& b);
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bool compare(const loop& a, const loop& b);
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bool compare(const face& a, const face& b);
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bool compare(const shell& a, const shell& b);
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bool compare(const solid& a, const solid& b);
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bool compare(const loft& a, const loft& b);
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bool compare(const boolean_result& a, const boolean_result& b);
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template <typename T>
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bool compare(const eigen_base<T>& t, const eigen_base<T>& u) {
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if (t.components_ == nullptr && u.components_ == nullptr) {
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return false;
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}
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else if (t.components_ == nullptr && u.components_ != nullptr) {
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return true;
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}
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else if (t.components_ != nullptr && u.components_ == nullptr) {
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return false;
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}
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auto t_begin = t.components_->data();
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auto t_end = t.components_->data() + t.components_->size();
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auto u_begin = u.components_->data();
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auto u_end = u.components_->data() + u.components_->size();
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return std::lexicographical_compare(t_begin, t_end, u_begin, u_end);
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}
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bool compare(const line& a, const line& b) {
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return compare(*a.matrix, *b.matrix);
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}
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bool compare(const plane& a, const plane& b) {
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return compare(*a.matrix, *b.matrix);
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}
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bool compare(const circle& a, const circle& b) {
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if (a.radius == b.radius) {
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return compare(*a.matrix, *b.matrix);
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}
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return a.radius < b.radius;
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}
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bool compare(const ellipse& a, const ellipse& b) {
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if (a.radius == b.radius && a.radius2 == b.radius2) {
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return compare(*a.matrix, *b.matrix);
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}
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return
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std::tie(a.radius, a.radius2) <
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std::tie(b.radius, b.radius2);
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}
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bool compare(const bspline_curve&, const bspline_curve&) {
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throw std::runtime_error("not implemented");
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}
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template <typename T>
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typename std::enable_if<std::is_base_of<item, T>::value, int>::type less_to_order(const T& a, const T& b) {
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const bool a_lt_b = compare(a, b);
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const bool b_lt_a = compare(b, a);
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return a_lt_b ?
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-1 : (!b_lt_a ? 0 : 1);
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}
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template <typename T>
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typename std::enable_if<!std::is_base_of<item, T>::value, int>::type less_to_order(const T& a, const T& b) {
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const bool a_lt_b = a < b;
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const bool b_lt_a = b < a;
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return a_lt_b ?
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-1 : (!b_lt_a ? 0 : 1);
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}
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template <typename T>
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int less_to_order_optional(const boost::optional<T>& a, const boost::optional<T>& b) {
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if (a && b) {
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return less_to_order(*a, *b);
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}
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else if (!a && !b) {
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return 0;
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}
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else if (a) {
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return 1;
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}
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else {
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return -1;
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}
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}
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int compare(const boost::variant<point3::ptr, double>& a, const boost::variant<point3::ptr, double>& b) {
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bool a_lt_b, b_lt_a;
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if (a.which() == 0) {
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a_lt_b = compare(*boost::get<point3::ptr>(a), *boost::get<point3::ptr>(b));
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b_lt_a = compare(*boost::get<point3::ptr>(b), *boost::get<point3::ptr>(a));
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}
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else {
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a_lt_b = std::less<double>()(boost::get<double>(a), boost::get<double>(b));
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b_lt_a = std::less<double>()(boost::get<double>(b), boost::get<double>(a));
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}
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return a_lt_b ?
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-1 : (!b_lt_a ? 0 : 1);
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}
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bool compare(const extrusion& a, const extrusion& b) {
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// @todo extrusions can also have non-identity matrices right? perhaps it's time
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// for a dedicated transform node and not on the abstract geom_item.
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const int order[3] = {
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less_to_order(a.basis, b.basis),
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less_to_order(a.direction, b.direction),
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a.depth < b.depth ? -1 : (a.depth == b.depth ? 0 : 1)
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};
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auto it = std::find_if(std::begin(order), std::end(order), [](int x) { return x; });
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if (it == std::end(order)) return false;
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return *it == -1;
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}
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bool compare(const node&, const node&) {
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throw std::runtime_error("not implemented");
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}
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bool compare(const offset_curve&, const offset_curve&) {
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throw std::runtime_error("not implemented");
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}
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bool compare(const revolve&, const revolve&) {
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throw std::runtime_error("not implemented");
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}
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bool compare(const bspline_surface&, const bspline_surface&) {
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throw std::runtime_error("not implemented");
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}
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bool compare(const cylinder&, const cylinder&) {
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throw std::runtime_error("not implemented");
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}
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bool compare(const surface_curve_sweep&, const surface_curve_sweep&) {
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throw std::runtime_error("not implemented");
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}
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bool compare(const piecewise_function&, const piecewise_function&) {
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throw std::runtime_error("not implemented");
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}
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bool compare(const style& a, const style& b) {
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const int order[5] = {
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less_to_order(a.name, b.name),
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less_to_order(a.diffuse, b.diffuse),
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less_to_order(a.specular, b.specular),
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less_to_order(a.specularity, b.specularity),
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less_to_order(a.transparency, b.transparency)
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};
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auto it = std::find_if(std::begin(order), std::end(order), [](int x) { return x; });
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if (it == std::end(order)) return false;
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return *it == -1;
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}
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/* A compile-time for loop over the taxonomy kinds */
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template <size_t N>
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struct dispatch_comparison {
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static bool dispatch(const item* a, const item* b) {
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if (N == a->kind() && N == b->kind()) {
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auto A = static_cast<const type_by_kind::type<N>*>(a);
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auto B = static_cast<const type_by_kind::type<N>*>(b);
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return compare(*A, *B);
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}
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else {
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return dispatch_comparison<N + 1>::dispatch(a, b);
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}
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}
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};
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template <>
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struct dispatch_comparison<type_by_kind::max> {
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static bool dispatch(const item*, const item*) {
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return false;
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}
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};
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}
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bool ifcopenshell::geometry::taxonomy::less(item::const_ptr a, item::const_ptr b) {
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if (a == b) {
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return false;
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}
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int a_kind = a->kind();
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int b_kind = b->kind();
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if (a_kind != b_kind) {
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return a_kind < b_kind;
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}
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#ifdef TAXONOMY_USE_SHARED_PTR
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return dispatch_comparison<0>::dispatch(a.get(), b.get());
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#endif
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}
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namespace {
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bool compare(const trimmed_curve& a, const trimmed_curve& b) {
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int a_which_start = a.start.which();
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int a_which_end = a.end.which();
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int b_which_start = b.start.which();
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int b_which_end = b.end.which();
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if (std::tie(a.orientation, a_which_start, a_which_end) ==
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std::tie(b.orientation, b_which_start, b_which_end)) {
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int start_state = compare(a.start, b.start);
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if (start_state == 0) {
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int end_state = compare(a.end, b.end);
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if (end_state == 0) {
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int a_has_basis = !!a.basis;
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int b_has_basis = !!a.basis;
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if (a_has_basis == b_has_basis) {
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if (!a_has_basis) {
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// Finally, equality
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return false;
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}
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else {
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return less(a.basis, b.basis);
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}
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}
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else {
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return a_has_basis < b_has_basis;
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}
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}
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else {
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return end_state == -1;
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}
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}
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else {
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return start_state == -1;
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}
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}
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else {
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return
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std::tie(a.orientation, a_which_start, a_which_end) <
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std::tie(b.orientation, b_which_start, b_which_end);
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}
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}
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template <typename T>
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bool compare_collection(const collection_base<T>& a, const collection_base<T>& b) {
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if (a.children.size() == b.children.size()) {
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auto at = a.children.begin();
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auto bt = b.children.begin();
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for (; at != a.children.end(); ++at, ++bt) {
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const bool a_lt_b = less(*at, *bt);
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const bool b_lt_a = less(*bt, *at);
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if (!a_lt_b && !b_lt_a) {
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// Elements equal.
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continue;
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}
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return a_lt_b;
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}
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// Vectors equal, compare matrix (in case of mapped items).
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return compare(*a.matrix, *b.matrix);
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}
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else {
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return a.children.size() < b.children.size();
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}
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}
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bool compare(const loop& a, const loop& b) {
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return compare_collection<edge>(a, b);
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}
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bool compare(const face& a, const face& b) {
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return compare_collection<loop>(a, b);
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}
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bool compare(const shell& a, const shell& b) {
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return compare_collection<face>(a, b);
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}
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bool compare(const solid& a, const solid& b) {
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return compare_collection<shell>(a, b);
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}
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bool compare(const loft& a, const loft& b) {
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return compare_collection<face>(a, b);
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}
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bool compare(const collection& a, const collection& b) {
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return compare_collection<geom_item>(a, b);
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}
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bool compare(const boolean_result& a, const boolean_result& b) {
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return compare_collection<geom_item>(a, b);
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}
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}
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ifcopenshell::geometry::taxonomy::solid::ptr ifcopenshell::geometry::create_box(double dx, double dy, double dz) {
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return create_box(0., 0., 0., dx, dy, dz);
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}
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ifcopenshell::geometry::taxonomy::solid::ptr ifcopenshell::geometry::create_box(double x, double y, double z, double dx, double dy, double dz) {
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auto solid = make<taxonomy::solid>();
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auto shell = make<taxonomy::shell>();
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solid->children.push_back(shell);
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// x = 0
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{
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auto face = make<taxonomy::face>();
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auto loop = make<taxonomy::loop>();
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face->children.push_back(loop);
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loop->external = true;
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shell->children.push_back(face);
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std::array<taxonomy::point3::ptr, 4> points{
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taxonomy::make<taxonomy::point3>(x + 0, y + 0, z + 0),
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taxonomy::make<taxonomy::point3>(x + 0, y + dy, z + 0),
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taxonomy::make<taxonomy::point3>(x + 0, y + dy, z + dz),
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taxonomy::make<taxonomy::point3>(x + 0, y + 0, z + dz)
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};
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loop->children.push_back(make<taxonomy::edge>(points[0], points[1]));
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loop->children.push_back(make<taxonomy::edge>(points[1], points[2]));
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loop->children.push_back(make<taxonomy::edge>(points[2], points[3]));
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loop->children.push_back(make<taxonomy::edge>(points[3], points[0]));
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}
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// x = dx
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{
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auto face = make<taxonomy::face>();
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auto loop = make<taxonomy::loop>();
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face->children.push_back(loop);
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loop->external = true;
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shell->children.push_back(face);
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std::array<taxonomy::point3::ptr, 4> points{
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taxonomy::make<taxonomy::point3>(x + dx, y + 0, z + 0),
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taxonomy::make<taxonomy::point3>(x + dx, y + 0, z + dz),
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taxonomy::make<taxonomy::point3>(x + dx, y + dy, z + dz),
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taxonomy::make<taxonomy::point3>(x + dx, y + dy, z + 0)
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};
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loop->children.push_back(make<taxonomy::edge>(points[0], points[1]));
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loop->children.push_back(make<taxonomy::edge>(points[1], points[2]));
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loop->children.push_back(make<taxonomy::edge>(points[2], points[3]));
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loop->children.push_back(make<taxonomy::edge>(points[3], points[0]));
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}
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// y = 0
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{
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auto face = make<taxonomy::face>();
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auto loop = make<taxonomy::loop>();
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face->children.push_back(loop);
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loop->external = true;
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shell->children.push_back(face);
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std::array<taxonomy::point3::ptr, 4> points{
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taxonomy::make<taxonomy::point3>(x + 0, y + 0, z + 0),
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taxonomy::make<taxonomy::point3>(x + 0, y + 0, z + dz),
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taxonomy::make<taxonomy::point3>(x + dx, y + 0, z + dz),
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taxonomy::make<taxonomy::point3>(x + dx, y + 0, z + 0)
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};
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loop->children.push_back(make<taxonomy::edge>(points[0], points[1]));
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loop->children.push_back(make<taxonomy::edge>(points[1], points[2]));
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loop->children.push_back(make<taxonomy::edge>(points[2], points[3]));
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loop->children.push_back(make<taxonomy::edge>(points[3], points[0]));
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}
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// y = dy
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{
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auto face = make<taxonomy::face>();
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auto loop = make<taxonomy::loop>();
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face->children.push_back(loop);
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loop->external = true;
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shell->children.push_back(face);
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std::array<taxonomy::point3::ptr, 4> points{
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taxonomy::make<taxonomy::point3>(x + 0, y + dy, z + 0),
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taxonomy::make<taxonomy::point3>(x + dx, y + dy, z + 0),
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taxonomy::make<taxonomy::point3>(x + dx, y + dy, z + dz),
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taxonomy::make<taxonomy::point3>(x + 0, y + dy, z + dz)
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};
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loop->children.push_back(make<taxonomy::edge>(points[0], points[1]));
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loop->children.push_back(make<taxonomy::edge>(points[1], points[2]));
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loop->children.push_back(make<taxonomy::edge>(points[2], points[3]));
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loop->children.push_back(make<taxonomy::edge>(points[3], points[0]));
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}
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// z = 0
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{
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auto face = make<taxonomy::face>();
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auto loop = make<taxonomy::loop>();
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face->children.push_back(loop);
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loop->external = true;
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shell->children.push_back(face);
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std::array<taxonomy::point3::ptr, 4> points{
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taxonomy::make<taxonomy::point3>(x + 0, y + 0, z + 0),
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taxonomy::make<taxonomy::point3>(x + dx, y + 0, z + 0),
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taxonomy::make<taxonomy::point3>(x + dx, y + dy, z + 0),
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taxonomy::make<taxonomy::point3>(x + 0, y + dy, z + 0)
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};
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loop->children.push_back(make<taxonomy::edge>(points[0], points[1]));
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loop->children.push_back(make<taxonomy::edge>(points[1], points[2]));
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loop->children.push_back(make<taxonomy::edge>(points[2], points[3]));
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loop->children.push_back(make<taxonomy::edge>(points[3], points[0]));
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}
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// z = dz
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{
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auto face = make<taxonomy::face>();
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auto loop = make<taxonomy::loop>();
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face->children.push_back(loop);
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loop->external = true;
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shell->children.push_back(face);
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std::array<taxonomy::point3::ptr, 4> points{
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taxonomy::make<taxonomy::point3>(x + 0, y + 0, z + dz),
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taxonomy::make<taxonomy::point3>(x + 0, y + dy, z + dz),
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taxonomy::make<taxonomy::point3>(x + dx, y + dy, z + dz),
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taxonomy::make<taxonomy::point3>(x + dx, y + 0, z + dz)
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};
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loop->children.push_back(make<taxonomy::edge>(points[0], points[1]));
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loop->children.push_back(make<taxonomy::edge>(points[1], points[2]));
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loop->children.push_back(make<taxonomy::edge>(points[2], points[3]));
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loop->children.push_back(make<taxonomy::edge>(points[3], points[0]));
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}
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return solid;
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}
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ifcopenshell::geometry::taxonomy::item::ptr ifcopenshell::geometry::taxonomy::piecewise_function::evaluate() const {
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// @todo configure resolution
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double length = 0.0;
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for (auto& s : spans)
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length += s.first;
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std::vector<taxonomy::point3::ptr> polygon;
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static const double target_resolution = 0.5;
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int num_steps = (int)std::ceil(length / target_resolution);
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auto resolution = length / num_steps;
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for (int i = 0; i <= num_steps; ++i) {
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auto u = resolution * i;
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Eigen::Matrix4d m = evaluate(u);
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polygon.push_back(taxonomy::make<taxonomy::point3>(m.col(3)(0), m.col(3)(1), m.col(3)(2)));
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}
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return polygon_from_points(polygon);
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}
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Eigen::Matrix4d ifcopenshell::geometry::taxonomy::piecewise_function::evaluate(double u) const {
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// @todo: rb optimize, assume monotonic evaluation and store last evaluated segment?
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for (auto& [length, fn] : spans) {
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if (u < length + 0.001) { // @todo: rb - need to use consistent tolerance
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return fn(u);
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}
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u -= length;
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}
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}
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|
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ifcopenshell::geometry::taxonomy::collection::ptr ifcopenshell::geometry::flatten(taxonomy::collection::ptr deep) {
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auto flat = make<taxonomy::collection>();
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ifcopenshell::geometry::visit<taxonomy::collection>(deep, [&flat](taxonomy::ptr i) {
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flat->children.push_back(taxonomy::cast<taxonomy::geom_item>(clone(i)));
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});
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|
return flat;
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|
}
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|
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const std::string& ifcopenshell::geometry::taxonomy::kind_to_string(kinds k) {
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using namespace std::string_literals;
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|
|
|
static std::string values[] = {
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|
"matrix4"s, "point3"s, "direction3"s, "line"s, "circle"s, "ellipse"s, "bspline_curve"s, "offset_curve"s, "plane"s, "cylinder"s, "bspline_surface"s, "edge"s, "loop"s, "face"s, "shell"s, "solid"s, "loft"s, "extrusion"s, "revolve"s, "surface_curve_sweep"s, "node"s, "collection"s, "boolean_result"s, "piecewise_function"s, "colour"s, "style"s,
|
|
};
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|
|
|
return values[k];
|
|
}
|
|
|
|
std::atomic_uint32_t item::counter_(0); |