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Handle multipolygons - use outer for linestring perimeter (re: 2789)

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Bryan Housel
2015-09-28 17:02:54 -04:00
parent 19e1c47e53
commit 0543f684d2
1 changed files with 15 additions and 4 deletions
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js/id/ui/info.js
+15 -4
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@@ -13,6 +13,19 @@ iD.ui.Info = function(context) {
return r / 12.56637 * 510065621724000;
}
function toLineString(feature) {
if (feature.type === 'LineString') return feature;
var result = { type: 'LineString', coordinates: [] };
if (feature.type === 'Polygon') {
result.coordinates = feature.coordinates[0];
} else if (feature.type === 'MultiPolygon') {
result.coordinates = feature.coordinates[0][0];
}
return result;
}
function displayLength(m) {
var d = m * (imperial ? 3.28084 : 1),
p, unit;
@@ -85,7 +98,7 @@ iD.ui.Info = function(context) {
if (hidden()) return;
var resolver = context.graph(),
selected = context.selectedIDs(),
selected = _.filter(context.selectedIDs(), function(e) { return context.hasEntity(e); }),
singular = selected.length === 1 ? selected[0] : null,
extent = iD.geo.Extent(),
entity;
@@ -121,9 +134,7 @@ iD.ui.Info = function(context) {
if (geometry === 'line' || geometry === 'area') {
var closed = (entity.type === 'relation') || (entity.isClosed() && !entity.isDegenerate()),
feature = entity.asGeoJSON(resolver),
lineFeature = (feature.type === 'LineString') ? feature :
{ type: 'LineString', coordinates: feature.coordinates[0] },
length = radiansToMeters(d3.geo.length(lineFeature)),
length = radiansToMeters(d3.geo.length(toLineString(feature))),
lengthLabel = t('infobox.' + (closed ? 'perimeter' : 'length')),
centroid = d3.geo.centroid(feature);