diff options
Diffstat (limited to 'framework/src/onos/web/gui/src/main/webapp/app/fw/svg/geodata.js')
| -rw-r--r-- | framework/src/onos/web/gui/src/main/webapp/app/fw/svg/geodata.js | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/framework/src/onos/web/gui/src/main/webapp/app/fw/svg/geodata.js b/framework/src/onos/web/gui/src/main/webapp/app/fw/svg/geodata.js deleted file mode 100644 index 6c54bb45..00000000 --- a/framework/src/onos/web/gui/src/main/webapp/app/fw/svg/geodata.js +++ /dev/null @@ -1,186 +0,0 @@ -/* - * Copyright 2015 Open Networking Laboratory - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - ONOS GUI -- SVG -- GeoData Service - */ - -/* - The GeoData Service facilitates the fetching and caching of TopoJSON data - from the server, as well as providing a way of creating a path generator - for that data, to be used to render the map in an SVG layer. - - A TopoData object can be fetched by ID. IDs that start with an asterisk - identify maps bundled with the GUI. IDs that do not start with an - asterisk are assumed to be URLs to externally provided data. - - var topodata = GeoDataService.fetchTopoData('*continental-us'); - - The path generator can then be created for that data-set: - - var gen = GeoDataService.createPathGenerator(topodata, opts); - - opts is an optional argument that allows the override of default settings: - { - objectTag: 'states', - projection: d3.geo.mercator(), - logicalSize: 1000, - mapFillScale: .95 - }; - - The returned object (gen) comprises transformed data (TopoJSON -> GeoJSON), - the D3 path generator function, and the settings used ... - - { - geodata: { ... }, - pathgen: function (...) { ... }, - settings: { ... } - } - */ - -(function () { - 'use strict'; - - // injected references - var $log, $http, fs; - - // internal state - var cache = d3.map(), - bundledUrlPrefix = 'data/map/'; - - function getUrl(id) { - if (id[0] === '*') { - return bundledUrlPrefix + id.slice(1) + '.topojson'; - } - return id + '.topojson'; - } - - - // start afresh... - function clearCache() { - cache = d3.map(); - } - - // returns a promise decorated with: - // .meta -- id, url, and whether the data was cached - // .topodata -- TopoJSON data (on response from server) - - function fetchTopoData(id) { - if (!fs.isS(id)) { - return null; - } - var url = getUrl(id), - promise = cache.get(id); - - if (!promise) { - // need to fetch the data, build the object, - // cache it, and return it. - promise = $http.get(url); - - promise.meta = { - id: id, - url: url, - wasCached: false - }; - - promise.then(function (response) { - // success - promise.topodata = response.data; - }, function (response) { - // error - $log.warn('Failed to retrieve map TopoJSON data: ' + url, - response.status, response.data); - }); - - cache.set(id, promise); - - } else { - promise.meta.wasCached = true; - } - - return promise; - } - - var defaultGenSettings = { - objectTag: 'states', - projection: d3.geo.mercator(), - logicalSize: 1000, - mapFillScale: .95 - }; - - // converts given TopoJSON-format data into corresponding GeoJSON - // data, and creates a path generator for that data. - function createPathGenerator(topoData, opts) { - var settings = angular.extend({}, defaultGenSettings, opts), - topoObject = topoData.objects[settings.objectTag], - geoData = topojson.feature(topoData, topoObject), - proj = settings.projection, - dim = settings.logicalSize, - mfs = settings.mapFillScale, - path = d3.geo.path().projection(proj); - - rescaleProjection(proj, mfs, dim, path, geoData); - - // return the results - return { - geodata: geoData, - pathgen: path, - settings: settings - }; - } - - function rescaleProjection(proj, mfs, dim, path, geoData) { - // adjust projection scale and translation to fill the view - // with the map - - // start with unit scale, no translation.. - proj.scale(1).translate([0, 0]); - - // figure out dimensions of map data.. - var b = path.bounds(geoData), - x1 = b[0][0], - y1 = b[0][1], - x2 = b[1][0], - y2 = b[1][1], - dx = x2 - x1, - dy = y2 - y1, - x = (x1 + x2) / 2, - y = (y1 + y2) / 2; - - // size map to 95% of minimum dimension to fill space.. - var s = mfs / Math.min(dx / dim, dy / dim), - t = [dim / 2 - s * x, dim / 2 - s * y]; - - // set new scale, translation on the projection.. - proj.scale(s).translate(t); - } - - angular.module('onosSvg') - .factory('GeoDataService', ['$log', '$http', 'FnService', - function (_$log_, _$http_, _fs_) { - $log = _$log_; - $http = _$http_; - fs = _fs_; - - - return { - clearCache: clearCache, - fetchTopoData: fetchTopoData, - createPathGenerator: createPathGenerator, - rescaleProjection: rescaleProjection - }; - }]); -}());
\ No newline at end of file |