terriajs/lib/Map/zoomRectangleFromPoint.js

Geospatial data visualization platform.

var Rectangle = require('terriajs-cesium/Source/Core/Rectangle');
var defaultValue = require('terriajs-cesium/Source/Core/defaultValue');

// Server does not return information of a bounding box, just a location.
// BOUNDING_BOX_SIZE is used to expand a point
var DEFAULT_BOUNDING_BOX_SIZE = 0.2;

module.exports = function createZoomToFunction(latitude, longitude, boundingBoxSize) {
    boundingBoxSize = defaultValue(boundingBoxSize, DEFAULT_BOUNDING_BOX_SIZE);

    var south = parseFloat(latitude) - boundingBoxSize / 2;
    var west = parseFloat(longitude) - boundingBoxSize / 2;
    var north = parseFloat(latitude) + boundingBoxSize / 2;
    var east = parseFloat(longitude) + boundingBoxSize / 2;
    return Rectangle.fromDegrees(west, south, east, north);
};