CouchDB design document to convert some JSON points (custom format (I think?)) into a MultiPoint GeoJSON thingy.

gistfile1.txt

{
   "_id": "_design/timeline",
   "_rev": "25-ccec1e8c0085a9b130b5f5289ae99d4b",
   "views": {
       "bySavedTime": {
           "map": "function (doc) {\n  if(doc.data && doc.data.position && typeof(doc.data.position.timestamp) == 'number') {\n    emit([doc.channel, doc.data.position.timestamp], doc);\n  }\n}"
       }
   },
   "lists": {
       "multipoint": "function(head, req) { var feature = { type: 'Feature', geometry: { type: 'MultiPoint', coordinates: [] }, properties: { time: [] } }; var row; while(row = getRow()) { if(row.value.data && row.value.data.position && row.value.data.position.coords && typeof(row.value.data.position.timestamp) == 'number') { var pos = row.value.data.position; feature.geometry.coordinates.push([pos.coords.longitude, pos.coords.latitude]); feature.properties.time.push(pos.timestamp); } } start({ headers: { 'Content-Type': 'application/json' } }); send(JSON.stringify(feature)); }"
   },
   "language": "javascript"
}