2b:null 2c:["$","title",null,{"children":"Hydro Hazards to the greek Railway Network | Fotis Zapantis | Observable"}] 31:T9a3,Plot.plot({ width, r: { range: [1, 20] }, color: {legend: true}, projection: { type: "mercator", domain: adminBoundaries }, marks: [ Plot.geo(adminBoundaries, {fill:"lightgray", stroke: "black", strokeWidth: 1.5, opacity: 0.8}), Plot.text(adminBoundaries.features, Plot.geoCentroid({title: (d) => d.properties.NAMA2, fill: "currentColor", stroke: "white"})), Plot.geo(adminBoundaries.features, Plot.pointer(Plot.centroid({fill:"red", title: (d) => `${d.properties.NAMA2}`}))), Plot.geo(groundwaterEPSG4326, {fill: showGroundWater ? "lightblue": "transparent", fillOpacity: 0.4, stroke: "lightblue", strokeWidth: showGroundWater ? 1 : 0 }), Plot.geo(naturaEPSG4326, {fill: showNatura ? "lightgreen": "transparent", fillOpacity: 0.4, stroke: "lightblue", strokeWidth: showNatura ? 1 : 0 }), Plot.geo(hydroEPSG4528, {stroke: "blue", strokeWidth: showRivers ? 1 : 0 }), Plot.geo(railwayEPSG4326, {stroke: "yellow", strokeWidth:2}), Plot.geo(grdams, {fill: (d) => d.properties.Volumem3, r: (d) => d.properties.Volumem3, symbol: (d) => d.properties.Νομός, title: (d) => d.properties.onoma, stroke: "black", strokeWidth:1}), Plot.geo(grdams, Plot.pointer(Plot.centroid({fill:"yellow", strokeWidth:3, title: (d) => d.properties.onoma, symbol: (d) => d.properties.Νομός, r: (d) => d.properties.Volumem3}))), Plot.text(grdams.features, { // Add text to the map using data from us_power_plants x: "longitude", // Place text horizontally at plant longitude y: "latitude", // Place text vertically at plant latitude text: (d) => d.properties.onoma, // The text that appears is the value from the Plant_Name column, filter: (d) => d.Volumem3 > 20, // Only add text for plants with capacity exceeding 3500 MW fontSize: 12, // Increased font size fontWeight: 600, // Increased font weight stroke: "white", // Adds white outer stroke to text (for readability) fill: "black", // Text fill color textAnchor: "start", // Left align text with the x- and y-coordinates dx: 15 // Shifts text to the right (starting from left alignment with coordinate) }) ] }) // Provide longitude values //(d) => `${d.getUTCFullYear()}’s` //Plot.tip(states, Plot.pointer(Plot.centroid({title: (d) => d.properties.name}))) //Plot.tip(states, Plot.geoCentroid({title: (d) => d.properties.name, anchor: "bottom", textPadding: 3}))32:[{"id":"81fe1dd2354ae3ae841114a55570f874d257b7971d8c635963515f4798614fc35817d5858a9565e9673d837cf752b8c61b9092865153ea34cf4eb5fd06d07852","href":"https://static.observableusercontent.com/files/81fe1dd2354ae3ae841114a55570f874d257b7971d8c635963515f4798614fc35817d5858a9565e9673d837cf752b8c61b9092865153ea34cf4eb5fd06d07852","name":"Screen Shot 2023-11-16 at 16.32.05.png","type":"image/png","lastModified":1742927994937.702,"size":174458},{"id":"9e441fb02bd08119cd0f398ac1590b8fd93355ffc22fd8f11d3767bd1d835154ec6390d1762c94b63e7c275b324f2706d7e24281bc361db135697fa2a3fc87d3","href":"https://static.observableusercontent.com/files/9e441fb02bd08119cd0f398ac1590b8fd93355ffc22fd8f11d3767bd1d835154ec6390d1762c94b63e7c275b324f2706d7e24281bc361db135697fa2a3fc87d3","name":"vlastisi0.jpeg","type":"image/jpeg","lastModified":1742927994937.702,"size":692903},{"id":"8343e0ee61ef9128726a4b77f088d4ae59054aaac522387aade04e98b72c0741de49fd8c7b376ffb346ebd1832c2e8cf097ed471e659166e9333abbdf37d9612","href":"https://static.observableusercontent.com/files/8343e0ee61ef9128726a4b77f088d4ae59054aaac522387aade04e98b72c0741de49fd8c7b376ffb346ebd1832c2e8cf097ed471e659166e9333abbdf37d9612","name":"GRDams.geojson","type":"application/geo+json","lastModified":1742927994937.702,"size":16972}] 2f:{"id":"603104192c5a8958","slug":null,"title":"Hydro Hazards to the greek Railway Network","thumbnail":"7ee14deea402b858e3f81e809af120837efc568859295b8b97e5d4f05eb4e608","access_level":"public","create_time":"$D2025-03-25T18:39:54.937Z","update_time":"$D2025-09-22T11:30:01.550Z","view_time":null,"first_public_time":"$D2025-03-25T18:39:54.937Z","has_unpublished_edits":null,"fork":true,"stars":0,"starred":false,"owner":{"type":"team","id":"1a8df8d954834dc2","login":"fotisz","name":"Fotis Zapantis","avatar_url":"https://avatars-next.observableusercontent.com/901e545cdb3cac06c4e839534bbc428dfeaf42076ff667a94c51a36ffa05a710","tier":"starter_2024"},"version":1386,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"acd5a464e612f2ce","login":"fotisz","name":"Fotis Zapantis","avatar_url":"https://avatars-next.observableusercontent.com/15771ec342f0d7ed8668e8ab4d7b9e0ec698cf2903a9002e4ac0c9b5f5178a99","tier":null}],"members":[{"type":"team","id":"1a8df8d954834dc2","login":"fotisz","name":"Fotis Zapantis","avatar_url":"https://avatars-next.observableusercontent.com/901e545cdb3cac06c4e839534bbc428dfeaf42076ff667a94c51a36ffa05a710","tier":"starter_2024","role":"editor"},{"type":"individual","id":"acd5a464e612f2ce","login":"fotisz","name":"Fotis Zapantis","avatar_url":"https://avatars-next.observableusercontent.com/15771ec342f0d7ed8668e8ab4d7b9e0ec698cf2903a9002e4ac0c9b5f5178a99","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"Hydro Hazards to the greek Railway Network","cells":[{"id":1123,"value":"# Hydro Hazards to the greek Railway Network #\n## Convert Shapefile to GeoJSON using shapefile ##\n\nThis notebook demonstrates how to use [jszip](https://github.com/Stuk/jszip) and [shapefile](https://github.com/mbostock/shapefile) to parse a zipped shapefile and convert it to a geojson. The uploaded shapefile must be in WGS84/EPSG:4326 projection.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":109,"value":"viewof zipFile = file({\n title: \"Upload zipped shapefile (Administrative Boundaries, from Humanitarian Data Exchange, 2015)\",\n description: \"Only .zip files are allowed in this example.\",\n accept: \".zip\",\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":227,"value":"_Greece - Subnational Administrative Boundaries_ [https://data.humdata.org/dataset/cod-ab-grc?]()","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":1132,"value":"### _Extract array buffer from file_ ###","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":123,"value":"archive = zipFile\n .arrayBuffer()\n .then(buffer => jszip.loadAsync(buffer))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1141,"value":"### _Extract shp and dbf files from archive_ ###","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":141,"value":"filenames = Object.keys(archive.files)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":142,"value":"shpFileName = filenames.find(\n (d) => d.indexOf(\"oria_dhmwn_kallikraths.shp\") > -1\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":325,"value":"dbfFileName = filenames.find(\n (d) => d.indexOf(\"oria_dhmwn_kallikraths.dbf\") > -1\n)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":80,"value":"shp = archive.file(shpFileName).async(\"arraybuffer\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":82,"value":"dbf = archive.file(dbfFileName).async(\"arraybuffer\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":126,"value":"md`Load [shapefile](https://github.com/mbostock/shapefile) to convert these binary files into the more browser-friendly GeoJSON format.\nIf shapefile.read function throws a RangeError, try reading just the shp.\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":135,"value":"shapefile = require(\"https://unpkg.com/shapefile@0.6\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":92,"value":"adminBoundaries = shapefile.read(shp, dbf)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":601,"value":"tableadminBoundaries = bertin.properties.table(adminBoundaries)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":605,"value":"Inputs.table(tableadminBoundaries)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":556,"value":"{\nconst container = yield htl.html`

`;\nconst map = L.map(container);\nconst layer = L.geoJSON(adminBoundaries).addTo(map);\nmap.fitBounds(layer.getBounds(), {maxZoom: 9});\nL.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n}).addTo(map);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":411,"value":"ID | Region Admin Level 1 | Region Admin Level 2 \n---|---|---\n0 | Makedonias Thrakis | Anatolikis Makedonias kai Thrakis\n1 | Makedonias Thrakis | Kentrikis Makedonias\n2 | Ipeiroy Dytikis Makedonias | Dytikis Makedonias\n3 | Ipeiroy Dytikis Makedonias | Ipeiroy\n4 | Thessalias Stereas Elladas | Thessalias\n5 | Thessalias Stereas Elladas | Stereas Elladas \n6 | Peloponnisoy Dytikis Elladas kai Ionioy Nison | Ionion Nison \n7 | Peloponnisoy Dytikis Elladas kai Ionioy Nison | Dytikis Elladas\n8 | Peloponnisoy Dytikis Elladas kai Ionioy Nison | Pelloponnisoy\n9 | Attikis | Attikis\n10| Aigaioy | Voreioy Aigaioy\n11| Aigaioy | Notioy Aigaioy\n12| Kritis | Kritis\n13| Agion Oros | Agion Oros","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":174,"value":"{\n const plot = Plot.plot({\n width,\n color: {legend: true},\n projection: { type: \"mercator\", domain: adminBoundaries }, \n marks: [\n Plot.geo(adminBoundaries, {fill:(d) => d.properties.NAMA2, text: \"NAMA2\", stroke: \"black\", strokeWidth: 1.5, opacity: 0.8}),\n Plot.geo(adminBoundaries.features, Plot.pointer(Plot.centroid({fill:\"yellow\", title: (d) => d.properties.NAMA2}))),\n Plot.geo(GRDamsGeometries, {fill:\"darkblue\", stroke: \"black\", strokeWidth:1}),\n Plot.voronoi(GRDamsGeometries, {x: (d) => d.coordinates[0], y: (d) => d.coordinates[1], stroke: \"lightgray\", strokeWidth:0.5}),\n Plot.tip(GRDamsProperties, Plot.pointer(Plot.centroid({title: (d) => d.onoma})))\n ]\n });\n return plot;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1117,"value":"screenShot20231116At163205 = FileAttachment(\"Screen Shot 2023-11-16 at 16.32.05.png\").image()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":739,"value":"GRDamsProperties = geo.properties.table(grdams)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":777,"value":"GRDamsGeometries = grdams.features.map((d) => d.geometry)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":700,"value":"{\n const plot = Plot.plot({\n width,\n color: {legend: true},\n projection: { type: \"mercator\", domain: adminBoundaries }, \n marks: [\n Plot.geo(adminBoundaries, {fill:(d) => d.properties.NAMA2, stroke: \"black\", strokeWidth: 1.5, opacity: 0.8}),\n Plot.geo(adminBoundaries, Plot.pointer(Plot.centroid({fill:\"red\"}))),\n Plot.tip(adminBoundaries.features, Plot.geoCentroid({title: (d) => d.properties.ΝΑΜΑ2, anchor: \"bottom\", textPadding: 3})),\n Plot.geo(groundwaterEPSG4326, {fill: showGroundWater ? \"lightblue\": \"transparent\", fillOpacity: 0.4, stroke: \"lightblue\", strokeWidth: showGroundWater ? 1 : 0 }),\n Plot.geo(hydroEPSG4528, {stroke: \"blue\", strokeWidth: showRivers ? 1 : 0 }),\n Plot.geo(railwayEPSG4326, {stroke: \"yellow\", strokeWidth:2})\n ]\n });\n return plot;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":392,"value":"viewof showRivers = Inputs.toggle({ label: \"Show Hydro\", value: true })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":584,"value":"viewof showGroundWater = Inputs.toggle({ label: \"Show GroundWater\", value: true })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1006,"value":"viewof showNatura = Inputs.toggle({ label: \"Show Natura\", value: true })","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":719,"value":"$31","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1251,"value":"Plot.plot({ // Initialize the plot\n projection: { type: \"mercator\", domain: adminBoundaries }, // Set the projection\n width,\n color: {legend:true},\n symbol: {legend: true},\n r: { range: [1, 10] },\n marks: [\n Plot.geo(adminBoundaries), // Add the state boundaries\n Plot.text(adminBoundaries.features, Plot.centroid({ text: (d) => d.properties.NAMA2, textAnchor: \"middle\", stroke: \"white\", fill: \"black\"})),\n Plot.geo(grdams, { r: (d) => d.properties.Volumem3, fill: (d) => d.properties.Volumem3, symbol: (d) => d.properties.Νομός\n }),\n ],\n})\n\n/// Plot.tip(states, Plot.pointer(Plot.centroid({title: (d) => d.properties.onoma})))","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":910,"value":"vlastisi0 = FileAttachment(\"vlastisi0.jpeg\").image()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":902,"value":"data = fetch(\"https://api.weather.gov/gridpoints/OKX/33,37/forecast\").then((response) => response.json())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":659,"value":"### Υδρολογικό Δίκτυο ###","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":1107,"value":"Inputs.table(tableHydro)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":607,"value":"tableHydro = bertin.properties.table(hydroEPSG4326)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1146,"value":"### Ποιότητα Δεδομένων ###","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":1101,"value":"Plot.plot({\n marks: [\n Plot.frame({ strokeOpacity: 0.1 }),\n Plot.ruleY([0]),\n Plot.dot(\n tableHydro,\n Plot.binX({ y: \"count\" }, { fx: \"category\", x: \"shape_leng\", tip: true })\n )\n ]\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":666,"value":"### Δίκτυο Φραγμάτων ###","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":813,"value":"Πλήρης [λίστα φραγμάτων (128)](https://eemf.gr/damlistGR_2012.pdf) και [booklet με πληροφορίες](https://eemf.gr/Fragmata_Elladas_201311.pdf) σχετικές με τα ελληνικά φράγματα από την ελληνική επιτροπή μεγάλων φραγμάτων. Περισσότερες πληροφορίες σχετικά με τα ελληνικά φράγματα στην [ιστοσελίδα του ΤΕΕ (151)](http://portal.tee.gr/portal/page/portal/teelar/EKDILWSEIS/damConference/list).","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":642,"value":"tableGRDams = bertin.properties.table(grdams)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":644,"value":"Inputs.table(tableGRDams)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":210,"value":"---\n## Appendix","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":114,"value":"md`Import d3-geo, jszip and other supporting modules`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":999,"value":"naturaEPSG4326 = fetch(\"https://geodata.gov.gr/geoserver/wfs/?service=WFS&version=1.0.0&request=GetFeature&typeName=geodata.gov.gr:262a95fb-2d88-4df8-980f-5ed4de44245b&outputFormat=application/json&srsName=epsg:4326\").then((response) => response.json())\n\n//https://geodata.gov.gr/geoserver/wfs/?service=WFS&version=1.0.0&request=GetFeature&typeName=geodata.gov.gr:262a95fb-2d88-4df8-980f-5ed4de44245b&outputFormat=application/json&srsName=epsg:4326","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1004,"value":"{\nconst container = yield htl.html`

`;\nconst map = L.map(container);\nconst layer = L.geoJSON(naturaEPSG4326).addTo(map);\nmap.fitBounds(layer.getBounds(), {maxZoom: 9});\nL.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n}).addTo(map);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":563,"value":"groundwaterEPSG4326 = fetch(\"https://geodata.gov.gr/geoserver/wfs/?service=WFS&version=1.0.0&request=GetFeature&typeName=geodata.gov.gr:9cbea661-3934-463a-91d3-9d0b31167751&outputFormat=application/json&srsName=epsg:4326\").then((response) => response.json())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":598,"value":"{\nconst container = yield htl.html`

`;\nconst map = L.map(container);\nconst layer = L.geoJSON(groundwaterEPSG4326).addTo(map);\nmap.fitBounds(layer.getBounds(), {maxZoom: 9});\nL.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n}).addTo(map);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":360,"value":"hydroEPSG3857 = fetch(\"https://geodata.gov.gr/geoserver/wfs/?service=WFS&version=1.0.0&request=GetFeature&typeName=geodata.gov.gr:6ac1b167-df9c-47b5-8cc0-ffdad7a13042&outputFormat=application/json&srsName=epsg:3857\").then((response) => response.json())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":366,"value":"hydroEPSG4326 = fetch(\"https://geodata.gov.gr/geoserver/wfs/?service=WFS&version=1.0.0&request=GetFeature&typeName=geodata.gov.gr:6ac1b167-df9c-47b5-8cc0-ffdad7a13042&outputFormat=application/json&srsName=epsg:4326\").then((response) => response.json())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":535,"value":"{\nconst container = yield htl.html`

`;\nconst map = L.map(container);\nconst layer = L.geoJSON(hydroEPSG4326).addTo(map);\nmap.fitBounds(layer.getBounds(), {maxZoom: 9});\nL.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n}).addTo(map);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":368,"value":"hydroEPSG4528 = fetch(\"https://geodata.gov.gr/geoserver/wfs/?service=WFS&version=1.0.0&request=GetFeature&typeName=geodata.gov.gr:6ac1b167-df9c-47b5-8cc0-ffdad7a13042&outputFormat=application/json&srsName=epsg:4258\").then((response) => response.json())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":541,"value":"{\nconst container = yield htl.html`

`;\nconst map = L.map(container);\nconst layer = L.geoJSON(hydroEPSG4528).addTo(map);\nmap.fitBounds(layer.getBounds(), {maxZoom: 9});\nL.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n}).addTo(map);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":435,"value":"railwayEPSG4326 = fetch(\"https://geodata.gov.gr/geoserver/wfs/?service=WFS&version=1.0.0&request=GetFeature&typeName=geodata.gov.gr:cd6cca01-996f-4120-8ff2-96e094e8d405&outputFormat=application/json&srsName=epsg:4326\").then((response) => response.json())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":542,"value":"{\nconst container = yield htl.html`

`;\nconst map = L.map(container);\nconst layer = L.geoJSON(railwayEPSG4326).addTo(map);\nmap.fitBounds(layer.getBounds(), {maxZoom: 9});\nL.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n}).addTo(map);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":331,"value":"grdams = FileAttachment(\"GRDams.geojson\").json()","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1333,"value":"{\nconst container = yield htl.html`

`;\nconst map = L.map(container);\nconst layer = L.geoJSON(grdams).addTo(map);\nmap.fitBounds(layer.getBounds(), {maxZoom: 9});\nL.tileLayer(\"https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png\", {\n attribution: \"© OpenStreetMap contributors\"\n}).addTo(map);\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":70,"value":"jszip = require(\"jszip@3/dist/jszip.min.js\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":57,"value":"import {file} from \"@jashkenas/inputs\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":1056,"value":"import {rangeSlider} from '@mootari/range-slider'","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":989,"value":"import { aq, op } from \"@uwdata/arquero\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":554,"value":"view = require(\"geoverview@1.2\").then((f) => f.view)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":503,"value":"import {Wrangler, op} from \"@observablehq/data-wrangler\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":603,"value":"bertin = require(\"bertin@latest\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":727,"value":"geo = require(\"geotoolbox@2\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W32","stdlib":"1","titling":"auto"}} 30:"$2f:body"