mirror of
https://github.com/mapbox/tippecanoe.git
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112 lines
2.6 KiB
C++
112 lines
2.6 KiB
C++
#include <stdlib.h>
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#include "geocsv.hpp"
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#include "mvt.hpp"
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#include "serial.hpp"
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#include "projection.hpp"
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#include "main.hpp"
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#include "text.hpp"
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#include "csv.hpp"
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#include "milo/dtoa_milo.h"
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void parse_geocsv(std::vector<struct serialization_state> &sst, std::string fname, int layer, std::string layername) {
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FILE *f = fopen(fname.c_str(), "r");
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if (f == NULL) {
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perror(fname.c_str());
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exit(EXIT_FAILURE);
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}
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std::string s;
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std::vector<std::string> header;
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ssize_t latcol = -1, loncol = -1;
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if ((s = csv_getline(f)).size() > 0) {
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std::string err = check_utf8(s);
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if (err != "") {
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fprintf(stderr, "%s: %s\n", fname.c_str(), err.c_str());
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exit(EXIT_FAILURE);
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}
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header = csv_split(s.c_str());
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for (size_t i = 0; i < header.size(); i++) {
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header[i] = csv_dequote(header[i]);
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if (header[i] == "lat" || header[i] == "latitude") {
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latcol = i;
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}
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if (header[i] == "lon" || header[i] == "longitude" || header[i] == "long") {
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loncol = i;
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}
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}
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}
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if (latcol < 0 || loncol < 0) {
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fprintf(stderr, "%s: Can't find \"lat\" and \"lon\" columns\n", fname.c_str());
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exit(EXIT_FAILURE);
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}
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size_t seq = 0;
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while ((s = csv_getline(f)).size() > 0) {
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std::string err = check_utf8(s);
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if (err != "") {
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fprintf(stderr, "%s: %s\n", fname.c_str(), err.c_str());
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exit(EXIT_FAILURE);
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}
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seq++;
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std::vector<std::string> line = csv_split(s.c_str());
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if (line.size() != header.size()) {
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fprintf(stderr, "%s:%zu: Mismatched column count: %zu in line, %zu in header\n", fname.c_str(), seq, line.size(), header.size());
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exit(EXIT_FAILURE);
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}
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double lon = atof(line[loncol].c_str());
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double lat = atof(line[latcol].c_str());
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long long x, y;
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projection->project(lon, lat, 32, &x, &y);
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drawvec dv;
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dv.push_back(draw(VT_MOVETO, x, y));
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std::vector<std::string> full_keys;
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std::vector<serial_val> full_values;
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for (size_t i = 0; i < line.size(); i++) {
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if (i != (size_t) latcol && i != (size_t) loncol) {
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full_keys.push_back(header[i]);
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serial_val sv;
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sv.type = mvt_string;
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sv.s = line[i];
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full_values.push_back(sv);
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}
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}
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serial_feature sf;
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sf.layer = layer;
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sf.layername = layername;
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sf.segment = sst[0].segment;
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sf.has_id = false;
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sf.id = 0;
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sf.has_tippecanoe_minzoom = false;
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sf.has_tippecanoe_maxzoom = false;
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sf.feature_minzoom = false;
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sf.seq = *(sst[0].layer_seq);
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sf.geometry = dv;
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sf.t = 1; // POINT
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sf.full_keys = full_keys;
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sf.full_values = full_values;
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sf.m = sf.full_values.size();
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serialize_feature(&sst[0], sf);
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}
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if (fclose(f) != 0) {
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perror("fclose");
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exit(EXIT_FAILURE);
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}
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}
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