bdq/mechanism/validate/biogeolocation.js

Biodiversity Data Quality Mechanisms

var general =  require("./general");
var improve = require("../improve/biogeolocation");

exports.isGMSCoordinate = function(str) {
    if(str.trim()==""){
        return null;
    }
    var parsed = improve.DMSCoordinateParser(str);
    if ((parsed.direction == "S" ||
        parsed.direction == "W" ||
        parsed.direction == "N" ||
        parsed.direction == "E") &&
        general.isNumeric(parsed.degrees) &&
        general.isNumeric(parsed.minutes) &&
        general.isNumeric(parsed.seconds)) {
        return true;
    }else{
        return false
    }
};
exports.isValidLatitude = function(str) {
    if(str.trim()==""){
        return null;
    }
    if(general.isNumeric(str)){
        var lat = parseFloat(str);
        return (lat<=90 && lat>=-90);
    }else{
        return false;
    }
};
exports.isValidLongitude = function(str) {
    if(str.trim()==""){
        return null;
    }
    if(general.isNumeric(str)){
        var lng = parseFloat(str);
        return (lng<=180 && lng>=-180);
    }else{
        return false;
    }
};