Refactor Entity, Node, Relation, Tags, Way from core to osm

modules/osm/node.js

@@ -0,0 +1,94 @@
+import _ from 'lodash';
+import { osmEntity } from './entity';
+import { geoExtent } from '../geo/index';
+
+export function osmNode() {
+    if (!(this instanceof osmNode)) {
+        return (new osmNode()).initialize(arguments);
+    } else if (arguments.length) {
+        this.initialize(arguments);
+    }
+}
+
+osmEntity.node = osmNode;
+
+osmNode.prototype = Object.create(osmEntity.prototype);
+
+_.extend(osmNode.prototype, {
+
+    type: 'node',
+
+
+    extent: function() {
+        return new geoExtent(this.loc);
+    },
+
+
+    geometry: function(graph) {
+        return graph.transient(this, 'geometry', function() {
+            return graph.isPoi(this) ? 'point' : 'vertex';
+        });
+    },
+
+
+    move: function(loc) {
+        return this.update({loc: loc});
+    },
+
+
+    isIntersection: function(resolver) {
+        return resolver.transient(this, 'isIntersection', function() {
+            return resolver.parentWays(this).filter(function(parent) {
+                return (parent.tags.highway ||
+                    parent.tags.waterway ||
+                    parent.tags.railway ||
+                    parent.tags.aeroway) &&
+                    parent.geometry(resolver) === 'line';
+            }).length > 1;
+        });
+    },
+
+
+    isHighwayIntersection: function(resolver) {
+        return resolver.transient(this, 'isHighwayIntersection', function() {
+            return resolver.parentWays(this).filter(function(parent) {
+                return parent.tags.highway && parent.geometry(resolver) === 'line';
+            }).length > 1;
+        });
+    },
+
+
+    isOnAddressLine: function(resolver) {
+        return resolver.transient(this, 'isOnAddressLine', function() {
+            return resolver.parentWays(this).filter(function(parent) {
+                return parent.tags.hasOwnProperty('addr:interpolation') &&
+                    parent.geometry(resolver) === 'line';
+            }).length > 0;
+        });
+    },
+
+
+    asJXON: function(changeset_id) {
+        var r = {
+            node: {
+                '@id': this.osmId(),
+                '@lon': this.loc[0],
+                '@lat': this.loc[1],
+                '@version': (this.version || 0),
+                tag: _.map(this.tags, function(v, k) {
+                    return { keyAttributes: { k: k, v: v } };
+                })
+            }
+        };
+        if (changeset_id) r.node['@changeset'] = changeset_id;
+        return r;
+    },
+
+
+    asGeoJSON: function() {
+        return {
+            type: 'Point',
+            coordinates: this.loc
+        };
+    }
+});