25:["$","title",null,{"children":"DD to Decimal Points | Alexander gullen | Observable"}] 49:[] 29:{"id":"b5f0375a86070211","slug":null,"title":"DD to Decimal Points","thumbnail":"6eff57d55b0934be92601b79699d82cffce982b2437bf0e5b858f14fff28583a","access_level":"public","create_time":"$D2026-02-19T21:11:43.828Z","update_time":"$D2026-02-19T22:10:19.584Z","view_time":null,"first_public_time":"$D2026-02-19T22:06:44.803Z","has_unpublished_edits":null,"fork":false,"stars":0,"starred":false,"owner":{"type":"team","id":"13f4960a8735b2dc","login":"alexmgullen","name":"Alexander gullen","avatar_url":"https://avatars-next.observableusercontent.com/4bf2a7315cfc06c55250ef9a3b8d56760cd69ffdf0cded1eb64523f1cbf85304","tier":"free_2026","bio":"","followed_by_you":false,"follows_you":false},"version":69,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"f5e8bf4f455acdcc","login":"alexmgullen","name":"Alexander gullen","avatar_url":"https://avatars-next.observableusercontent.com/de76a17f963ef70e5b3a8062512fafd15fe24a61bfd69771116417bb8777acc1","tier":null,"bio":"","followed_by_you":false,"follows_you":false}],"members":[{"type":"team","id":"13f4960a8735b2dc","login":"alexmgullen","name":"Alexander gullen","avatar_url":"https://avatars-next.observableusercontent.com/4bf2a7315cfc06c55250ef9a3b8d56760cd69ffdf0cded1eb64523f1cbf85304","tier":"free_2026","role":"editor"},{"type":"individual","id":"f5e8bf4f455acdcc","login":"alexmgullen","name":"Alexander gullen","avatar_url":"https://avatars-next.observableusercontent.com/de76a17f963ef70e5b3a8062512fafd15fe24a61bfd69771116417bb8777acc1","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":true,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"DD to Decimal Points","cells":[{"id":0,"value":"# DD to Decimal Points\n\nThis is a very simple utility to convert points from the Decimal Degree (DD) format used by Google Maps to a Latitude/Longitude point.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":5,"value":"viewof dd_input = Inputs.text({label: \"Decimal Degree Input\",placeholder:\"43°27'16.3\\\"N 80°30'00.1\\\"W\"})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":7,"value":"// Code Modified from Peter John on Stackoverflow\n// https://stackoverflow.com/questions/1140189/converting-latitude-and-longitude-to-decimal-values\n\nfunction ParseDMS(input) {\n var parts = input.split(/°|'|\"| /);\n console.log(parts)\n var lat = ConvertDMSToDD(parts[0], parts[1], parts[2], parts[4]);\n var lng = ConvertDMSToDD(parts[4], parts[5], parts[6], parts[7]);\n\n return {\n Latitude : lat,\n Longitude: lng,\n Position : lat + ',' + lng\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":11,"value":"// Code from Peter John on Stackoverflow\n// https://stackoverflow.com/questions/1140189/converting-latitude-and-longitude-to-decimal-values\n\nfunction ConvertDMSToDD(degrees, minutes, seconds, direction) {\n var dd = Number(degrees) + Number(minutes)/60 + Number(seconds)/(60*60);\n\n if (direction == \"S\" || direction == \"W\") {\n dd = dd * -1;\n } // Don't do anything for N or E\n return dd;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":43,"value":"point = ParseDMS(dd_input);","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"map = {\n const container = html`

`;\n yield container;\n const map = L.map(container).setView([point.Latitude, point.Longitude], 13);\n L.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n }).addTo(map);\n\n var marker = L.marker([point.Latitude,point.Longitude]).addTo(map);\n marker.bindPopup(`lat: ${point.Latitude},
lng: ${point.Longitude}`).openPopup()\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":39,"value":"

Output:
\n lat: ${point.Latitude}\n
\n lng: ${point.Longitude}\n

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