Complete sample file generator

test-data/generator/generate.cpp

@@ -1,19 +1,47 @@
 #include <iostream>
+#include <fstream>
+#include <string>
 
 #include "s2/s2earth.h"
+#include "s2/s2cell_id.h"
 #include "s2/s1angle.h"
 
-int main(int argc, char **argv) {
-    S1Angle lat = S1Angle::Degrees(10.0);
-    S1Angle lon = S1Angle::Degrees(15.0);
-    S2LatLng s = S2LatLng(lat, lon);
-    S2LatLng g = s.Normalized();
+using namespace std;
 
-    std::cout << "hi\n";
+uint64 latLonStringsToCellId(string latString, string lonString) {
+    S1Angle lat = S1Angle::Degrees(atof(latString.c_str()));
+    S1Angle lon = S1Angle::Degrees(atof(lonString.c_str()));
+
+    S2LatLng latLng = S2LatLng(lat, lon).Normalized();
+
+    S2CellId s2CellId = S2CellId(latLng);
+
+    return s2CellId.id();
+}
+
+int main(int argc, char **argv) {
+    fstream file;
+    file.open("./sample-lat-lon.csv", fstream::in);
+
+    if (!file) {
+        cerr << "Could not open input file" << endl;
+        exit(1);
+    }
+
+    string latString = "";
+    string lonString = "";
+
+    string header;
+    getline(file, header, '\n');
+
+    cout << header << ",cellid" << "\n";
+
+    while (getline(file, latString, ',')) {
+        getline(file, lonString, '\n') ;
+        uint64 generatedCellId = latLonStringsToCellId(latString, lonString);
+
+        cout << latString << "," << lonString << "," << generatedCellId << "\n";
+    }
 
     return 0;
 }
-
-S2LatLng randomLatLon() {
-    
-}