mirror of
https://github.com/felt/tippecanoe.git
synced 2026-10-02 16:35:40 +02:00
Erica Fischer
e2a7a409c7
* Add a way to run tippecanoe single-threaded for profiling * Do less work when the tilestats sample values list is already full * Save a copy when retrieving the attribute key * Fewer atomic operations * Move string hashing from mbtiles to text * Only do approximate attribute deduplication when writing tiles * Feature dropping tests are sensitive to exact tile size * All tile creators now create a string pool for the tile * Features clipped away to nothing should not participate in that tile * Revert "Only do approximate attribute deduplication when writing tiles" This reverts commitc42b34b498. * Also revert the related test changes * Revert "Revert "Only do approximate attribute deduplication when writing tiles"" This reverts commit18509876c3. * Be more specific about the string hash function * Use fnv1a instead of std::hash for everything * Reduce the chance of hash collisions * Stick a hash search on the front of the tree search in addpool * Eliminate repeated hashing of the same string * Switch instead of ifs in json parsing * A few more cases to populate the hash in addpool * Store the hash in the tree instead of recalculating * Add explanatory comment for mysterious argument * Fewer copies in attribute stringification * Clean up ancient weirdness in JSON attribute stringification * More serial_val cleanup * Pass a serial_feature to rewrite instead of many broken-down arguments * Get rid of the multiple geometries within `partial` * Revert "Pass a serial_feature to rewrite instead of many broken-down arguments" This reverts commit6f4ab9b725. * Goodbye, struct coalesce * Revert "Features clipped away to nothing should not participate in that tile" This reverts commit124462fbdc. * Migrating fields from partial to serial_feature * Name reconciliation between serial_feature and partial * Replace struct partial with an augmented serial_feature * Fix some overzealous search-and-replace renaming * Don't say struct so often * Remove more of the former partial construction * Commenting and cleaning up * Trying again to avoid all these arguments to rewrite * I swear I did this same thing before and it didn't work. * More rewrite cleanup * Exile --detect-shared-borders to its own file * Add missing headers * More commenting and cleanup * More comments * Sprinkle consts around * Emplacing and std::moving * More cleanup * That shouldn't have worked after a std::move * Don't need to allocate memory to compare keys * Reduce use of the global string pool in tiling * Another avoidable mvt_value construction * Further reduction to explicit string pool passing * These reverses are no longer optimizations * These layernames can all be references * Don't drag an unused layername string around with every feature * Heed a compiler warning about potential buffer overflow * Fix my confusion about which feature's string pool is relevant * Avoid some unnecessary allocations in attribute accumulation * Maybe faster serialization? * Eliminate a comparison * Do the same here * Save a couple of allocations when parsing numbers in JSON * Immediately assign features to layers instead of subdividing later * Maintain tilestats for tippecanoe:retain_points_multiplier_sequence * Crunch out more duplicate attribute values when writing out the tile * Do tilestats for tippecanoe:retain_points_multiplier_first too * Shell filters need to be real threads, even if nothing else does * Simplify tippecanoe_minzoom/maxzoom representation * Update version and changelog
116 lines
4.6 KiB
C++
116 lines
4.6 KiB
C++
#ifndef GEOMETRY_HPP
|
|
#define GEOMETRY_HPP
|
|
|
|
#include <vector>
|
|
#include <atomic>
|
|
#include <set>
|
|
#include <string>
|
|
#include <sqlite3.h>
|
|
#include <stdio.h>
|
|
#include <mvt.hpp>
|
|
#include "jsonpull/jsonpull.h"
|
|
#include "attribute.hpp"
|
|
|
|
#define VT_POINT 1
|
|
#define VT_LINE 2
|
|
#define VT_POLYGON 3
|
|
|
|
#define VT_END 0
|
|
#define VT_MOVETO 1
|
|
#define VT_LINETO 2
|
|
#define VT_CLOSEPATH 7
|
|
|
|
// The bitfield is to make sizeof(draw) be 16 instead of 24
|
|
// at the cost, apparently, of a 0.7% increase in running time
|
|
// for packing and unpacking.
|
|
struct draw {
|
|
long long x : 40;
|
|
signed char op;
|
|
long long y : 40;
|
|
signed char necessary;
|
|
|
|
draw(int nop, long long nx, long long ny)
|
|
: x(nx),
|
|
op(nop),
|
|
y(ny),
|
|
necessary(0) {
|
|
}
|
|
|
|
draw()
|
|
: x(0),
|
|
op(0),
|
|
y(0),
|
|
necessary(0) {
|
|
}
|
|
|
|
bool operator<(draw const &s) const {
|
|
if (y < s.y || (y == s.y && x < s.x)) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool operator>(draw const &s) const {
|
|
return s < *this;
|
|
}
|
|
|
|
bool operator==(draw const &s) const {
|
|
return y == s.y && x == s.x;
|
|
}
|
|
|
|
bool operator!=(draw const &s) const {
|
|
return y != s.y || x != s.x;
|
|
}
|
|
};
|
|
|
|
typedef std::vector<draw> drawvec;
|
|
struct serial_feature;
|
|
|
|
drawvec decode_geometry(const char **meta, int z, unsigned tx, unsigned ty, long long *bbox, unsigned initial_x, unsigned initial_y);
|
|
void to_tile_scale(drawvec &geom, int z, int detail);
|
|
drawvec from_tile_scale(drawvec const &geom, int z, int detail);
|
|
drawvec remove_noop(drawvec geom, int type, int shift);
|
|
drawvec clip_point(drawvec &geom, int z, long long buffer);
|
|
drawvec clean_or_clip_poly(drawvec &geom, int z, int buffer, bool clip, bool try_scaling);
|
|
drawvec close_poly(drawvec &geom);
|
|
drawvec reduce_tiny_poly(const drawvec &geom, int z, int detail, bool *still_needs_simplification, bool *reduced_away, double *accum_area, serial_feature *this_feature, serial_feature *tiny_feature);
|
|
int clip(long long *x0, long long *y0, long long *x1, long long *y1, long long xmin, long long ymin, long long xmax, long long ymax);
|
|
drawvec clip_lines(drawvec &geom, int z, long long buffer);
|
|
drawvec stairstep(drawvec &geom, int z, int detail);
|
|
bool point_within_tile(long long x, long long y, int z);
|
|
int quick_check(const long long *bbox, int z, long long buffer);
|
|
drawvec simplify_lines(drawvec &geom, int z, int tx, int ty, int detail, bool mark_tile_bounds, double simplification, size_t retain, drawvec const &shared_nodes, struct node *shared_nodes_map, size_t nodepos);
|
|
drawvec reorder_lines(const drawvec &geom);
|
|
drawvec fix_polygon(const drawvec &geom);
|
|
std::vector<drawvec> chop_polygon(std::vector<drawvec> &geoms);
|
|
void check_polygon(drawvec &geom);
|
|
double get_area(const drawvec &geom, size_t i, size_t j);
|
|
double get_mp_area(drawvec &geom);
|
|
drawvec polygon_to_anchor(const drawvec &geom);
|
|
drawvec checkerboard_anchors(drawvec const &geom, int tx, int ty, int z, unsigned long long label_point);
|
|
|
|
drawvec simple_clip_poly(drawvec &geom, int z, int buffer, drawvec &shared_nodes, bool prevent_simplify_shared_nodes);
|
|
drawvec simple_clip_poly(drawvec &geom, long long x1, long long y1, long long x2, long long y2, bool prevent_simplify_shared_nodes);
|
|
drawvec simple_clip_poly(drawvec &geom, long long x1, long long y1, long long x2, long long y2,
|
|
long long ax, long long ay, long long bx, long long by, drawvec &shared_nodes, bool prevent_simplify_shared_nodes);
|
|
drawvec clip_lines(drawvec &geom, long long x1, long long y1, long long x2, long long y2);
|
|
drawvec clip_point(drawvec &geom, long long x1, long long y1, long long x2, long long y2);
|
|
void visvalingam(drawvec &ls, size_t start, size_t end, double threshold, size_t retain);
|
|
int pnpoly(const drawvec &vert, size_t start, size_t nvert, long long testx, long long testy);
|
|
double distance_from_line(long long point_x, long long point_y, long long segA_x, long long segA_y, long long segB_x, long long segB_y);
|
|
|
|
std::string overzoom(const mvt_tile &tile, int oz, int ox, int oy, int nz, int nx, int ny,
|
|
int detail, int buffer, std::set<std::string> const &keep, bool do_compress,
|
|
std::vector<std::pair<unsigned, unsigned>> *next_overzoomed_tiles,
|
|
bool demultiply, json_object *filter, bool preserve_input_order,
|
|
std::unordered_map<std::string, attribute_op> const &attribute_accum);
|
|
|
|
std::string overzoom(const std::string &s, int oz, int ox, int oy, int nz, int nx, int ny,
|
|
int detail, int buffer, std::set<std::string> const &keep, bool do_compress,
|
|
std::vector<std::pair<unsigned, unsigned>> *next_overzoomed_tiles,
|
|
bool demultiply, json_object *filter, bool preserve_input_order,
|
|
std::unordered_map<std::string, attribute_op> const &attribute_accum);
|
|
|
|
#endif
|