/**
* 最寄りの施設をさがす．<br>
*
* @author n-yuuta<br>
* @param lan 経度<br>
* @param lon 緯度<br>
* @return building
*/
public Building getNearestBuilding(double longitude, double latitude) {
int minBuildId = 0;
double minLan = 0.0;
double minLon = 0.0;
int minCount = 0;
String minName = "";
double minDistance = 0.0;
double distance = 0.0;
ArrayList<Building> buildingList = DBUtils.convertDBToBuildingList();
for (int i = 0; i < buildingList.size(); i++) {
distance =
this.calcDistance(
longitude,
latitude,
buildingList.get(i).getLongitude(),
buildingList.get(i).getLatitude(),
5);
if (i == 0) {
minDistance = distance;
minBuildId = buildingList.get(i).getBuildId();
minLan = buildingList.get(i).getLongitude();
minLon = buildingList.get(i).getLatitude();
minCount = buildingList.get(i).getCount();
minName = buildingList.get(i).getName();
} else {
if (distance < minDistance) {
minDistance = distance;
minBuildId = buildingList.get(i).getBuildId();
minLan = buildingList.get(i).getLongitude();
minLon = buildingList.get(i).getLatitude();
minCount = buildingList.get(i).getCount();
minName = buildingList.get(i).getName();
}
}
}
Building building = new Building();
building.setBuildId(minBuildId);
building.setLongitude(minLan);
building.setLatitude(minLon);
building.setCount(minCount);
building.setName(minName);
return building;
}
/**
* 近くの施設をまとめて返す（おそらく正式に使うBuildingList版）
*
* @author 2015020 賀数
* @param lon 緯度
* @param lat 経度
* @return 施設群
*/
public BuildingList searchBuildings(double longitude, double latitude) {
BuildingList buildingList = new BuildingList();
List<Building> buildings = new ArrayList<Building>();
DBCursor cursor = coll.find(new BasicDBObject());
buildingList.setBuildNum(cursor.count());
for (DBObject test : cursor) {
Building bld = new Building();
bld.setBuildId((int) test.get("buildId"));
bld.setCount((int) test.get("count"));
bld.setLatitude((double) test.get("latitude"));
bld.setLongitude((double) test.get("longitude"));
bld.setName((String) test.get("name"));
buildings.add(bld);
}
buildingList.setBuildings(buildings);
return buildingList;
}
