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Preserve information about big components

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This uses a bit flag to differenciate between small and big components
and keeps the ids for both. This makes it possible to give better
error messages.
This commit is contained in:
Patrick Niklaus
2015-11-18 17:47:37 +01:00
parent 420369fe13
commit d843521839
8 changed files with 60 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files
data_structures/edge_based_node.hpp
+7 -5
View File
@@ -46,7 +46,7 @@ struct EdgeBasedNode
u(SPECIAL_NODEID), v(SPECIAL_NODEID), name_id(0),
forward_weight(INVALID_EDGE_WEIGHT >> 1), reverse_weight(INVALID_EDGE_WEIGHT >> 1),
forward_offset(0), reverse_offset(0), packed_geometry_id(SPECIAL_EDGEID),
component_id(-1), fwd_segment_position(std::numeric_limits<unsigned short>::max()),
component{false, INVALID_COMPONENTID}, fwd_segment_position(std::numeric_limits<unsigned short>::max()),
forward_travel_mode(TRAVEL_MODE_INACCESSIBLE),
backward_travel_mode(TRAVEL_MODE_INACCESSIBLE)
{
@@ -62,6 +62,7 @@ struct EdgeBasedNode
int forward_offset,
int reverse_offset,
unsigned packed_geometry_id,
bool is_tiny_component,
unsigned component_id,
unsigned short fwd_segment_position,
TravelMode forward_travel_mode,
@@ -70,7 +71,7 @@ struct EdgeBasedNode
reverse_edge_based_node_id(reverse_edge_based_node_id), u(u), v(v), name_id(name_id),
forward_weight(forward_weight), reverse_weight(reverse_weight),
forward_offset(forward_offset), reverse_offset(reverse_offset),
packed_geometry_id(packed_geometry_id), component_id(component_id),
packed_geometry_id(packed_geometry_id), component{is_tiny_component, component_id},
fwd_segment_position(fwd_segment_position), forward_travel_mode(forward_travel_mode),
backward_travel_mode(backward_travel_mode)
{
@@ -90,8 +91,6 @@ struct EdgeBasedNode
bool IsCompressed() const { return packed_geometry_id != SPECIAL_EDGEID; }
bool is_in_tiny_cc() const { return 0 != component_id; }
NodeID forward_edge_based_node_id; // needed for edge-expanded graph
NodeID reverse_edge_based_node_id; // needed for edge-expanded graph
NodeID u; // indices into the coordinates array
@@ -102,7 +101,10 @@ struct EdgeBasedNode
int forward_offset; // prefix sum of the weight up the edge TODO: short must suffice
int reverse_offset; // prefix sum of the weight from the edge TODO: short must suffice
unsigned packed_geometry_id; // if set, then the edge represents a packed geometry
unsigned component_id;
struct {
bool is_tiny : 1;
unsigned id : 31;
} component;
unsigned short fwd_segment_position; // segment id in a compressed geometry
TravelMode forward_travel_mode : 4;
TravelMode backward_travel_mode : 4;
data_structures/phantom_node.cpp
+4 -5
View File
@@ -42,6 +42,7 @@ PhantomNode::PhantomNode(NodeID forward_node_id,
int forward_offset,
int reverse_offset,
unsigned packed_geometry_id,
bool is_tiny_component,
unsigned component_id,
FixedPointCoordinate &location,
unsigned short fwd_segment_position,
@@ -50,7 +51,7 @@ PhantomNode::PhantomNode(NodeID forward_node_id,
: forward_node_id(forward_node_id), reverse_node_id(reverse_node_id), name_id(name_id),
forward_weight(forward_weight), reverse_weight(reverse_weight),
forward_offset(forward_offset), reverse_offset(reverse_offset),
packed_geometry_id(packed_geometry_id), component_id(component_id), location(location),
packed_geometry_id(packed_geometry_id), component{is_tiny_component, component_id}, location(location),
fwd_segment_position(fwd_segment_position), forward_travel_mode(forward_travel_mode),
backward_travel_mode(backward_travel_mode)
{
@@ -60,7 +61,7 @@ PhantomNode::PhantomNode()
: forward_node_id(SPECIAL_NODEID), reverse_node_id(SPECIAL_NODEID),
name_id(std::numeric_limits<unsigned>::max()), forward_weight(INVALID_EDGE_WEIGHT),
reverse_weight(INVALID_EDGE_WEIGHT), forward_offset(0), reverse_offset(0),
packed_geometry_id(SPECIAL_EDGEID), component_id(std::numeric_limits<unsigned>::max()),
packed_geometry_id(SPECIAL_EDGEID), component{false, INVALID_COMPONENTID},
fwd_segment_position(0), forward_travel_mode(TRAVEL_MODE_INACCESSIBLE),
backward_travel_mode(TRAVEL_MODE_INACCESSIBLE)
{
@@ -96,11 +97,9 @@ bool PhantomNode::is_valid(const unsigned number_of_nodes) const
return location.is_valid() &&
((forward_node_id < number_of_nodes) || (reverse_node_id < number_of_nodes)) &&
((forward_weight != INVALID_EDGE_WEIGHT) || (reverse_weight != INVALID_EDGE_WEIGHT)) &&
(name_id != INVALID_NAMEID);
(component.id != INVALID_COMPONENTID) && (name_id != INVALID_NAMEID);
}
bool PhantomNode::is_in_tiny_component() const { return component_id != 0; }
bool PhantomNode::is_valid() const { return location.is_valid() && (name_id != INVALID_NAMEID); }
bool PhantomNode::operator==(const PhantomNode &other) const { return location == other.location; }
data_structures/phantom_node.hpp
+9 -5
View File
@@ -47,6 +47,7 @@ struct PhantomNode
int forward_offset,
int reverse_offset,
unsigned packed_geometry_id,
bool is_tiny_component,
unsigned component_id,
FixedPointCoordinate &location,
unsigned short fwd_segment_position,
@@ -68,7 +69,9 @@ struct PhantomNode
reverse_offset = other.reverse_offset;
packed_geometry_id = other.packed_geometry_id;
component_id = other.component_id;
component.id = other.component.id;
component.is_tiny = other.component.is_tiny;
location = foot_point;
fwd_segment_position = other.fwd_segment_position;
@@ -85,7 +88,10 @@ struct PhantomNode
int forward_offset;
int reverse_offset;
unsigned packed_geometry_id;
unsigned component_id;
struct {
bool is_tiny : 1;
unsigned id : 31;
} component;
FixedPointCoordinate location;
unsigned short fwd_segment_position;
// note 4 bits would suffice for each,
@@ -105,8 +111,6 @@ struct PhantomNode
bool is_valid() const;
bool is_in_tiny_component() const;
bool operator==(const PhantomNode &other) const;
};
@@ -147,7 +151,7 @@ inline std::ostream &operator<<(std::ostream &out, const PhantomNode &pn)
<< "fwd-o: " << pn.forward_offset << ", "
<< "rev-o: " << pn.reverse_offset << ", "
<< "geom: " << pn.packed_geometry_id << ", "
<< "comp: " << pn.component_id << ", "
<< "comp: " << pn.component.is_tiny << " / " << pn.component.id << ", "
<< "pos: " << pn.fwd_segment_position << ", "
<< "loc: " << pn.location;
return out;
data_structures/static_rtree.hpp
+6 -25
View File
@@ -603,7 +603,7 @@ class StaticRTree
for (uint32_t i = 0; i < current_leaf_node.object_count; ++i)
{
EdgeDataT const &current_edge = current_leaf_node.objects[i];
if (ignore_tiny_components && current_edge.component_id != 0)
if (ignore_tiny_components && current_edge.component.is_tiny)
{
continue;
}
@@ -767,7 +767,7 @@ class StaticRTree
// continue searching for the first segment from a big component
if (number_of_elements_from_big_cc == 0 &&
number_of_elements_from_tiny_cc >= max_number_of_phantom_nodes &&
current_segment.is_in_tiny_cc())
current_segment.component.is_tiny)
{
continue;
}
@@ -821,7 +821,7 @@ class StaticRTree
result_phantom_node_vector.back());
// update counts on what we found from which result class
if (current_segment.is_in_tiny_cc())
if (current_segment.component.is_tiny)
{ // found an element in tiny component
++number_of_elements_from_tiny_cc;
}
@@ -976,14 +976,7 @@ class StaticRTree
// store phantom node in result vector
result_phantom_node_vector.emplace_back(
PhantomNode(
current_segment.forward_edge_based_node_id,
current_segment.reverse_edge_based_node_id, current_segment.name_id,
current_segment.forward_weight, current_segment.reverse_weight,
current_segment.forward_offset, current_segment.reverse_offset,
current_segment.packed_geometry_id, current_segment.component_id,
foot_point_coordinate_on_segment, current_segment.fwd_segment_position,
current_segment.forward_travel_mode, current_segment.backward_travel_mode),
PhantomNode {current_segment, foot_point_coordinate_on_segment},
current_perpendicular_distance);
if (!forward_bearing_valid)
@@ -1043,7 +1036,7 @@ class StaticRTree
for (uint32_t i = 0; i < current_leaf_node.object_count; ++i)
{
const EdgeDataT &current_edge = current_leaf_node.objects[i];
if (ignore_tiny_components && current_edge.component_id != 0)
if (ignore_tiny_components && current_edge.component.is_tiny != 0)
{
continue;
}
@@ -1062,19 +1055,7 @@ class StaticRTree
!osrm::epsilon_compare(current_perpendicular_distance, min_dist))
{ // found a new minimum
min_dist = current_perpendicular_distance;
result_phantom_node = {current_edge.forward_edge_based_node_id,
current_edge.reverse_edge_based_node_id,
current_edge.name_id,
current_edge.forward_weight,
current_edge.reverse_weight,
current_edge.forward_offset,
current_edge.reverse_offset,
current_edge.packed_geometry_id,
current_edge.component_id,
nearest,
current_edge.fwd_segment_position,
current_edge.forward_travel_mode,
current_edge.backward_travel_mode};
result_phantom_node = {current_edge, nearest};
nearest_edge = current_edge;
}
}