31:T79e,annotation = ({ "type": "Annotation", "id": "https://annotations.allmaps.org/maps/qP7VwmmJQYutccpC", "@context": [ "http://www.w3.org/ns/anno.jsonld", "http://geojson.org/geojson-ld/geojson-context.jsonld", "http://iiif.io/api/presentation/3/context.json" ], "motivation": "georeferencing", "target": { "type": "Image", "source": "https://cdm21033.contentdm.oclc.org/digital/iiif/krt/2891/full/full/0/default.jpg", "service": [ { "@id": "https://cdm21033.contentdm.oclc.org/digital/iiif/krt/2891", "type": "ImageService2" } ], "selector": { "type": "SvgSelector", "value": "" } }, "body": { "type": "FeatureCollection", "purpose": "gcp-georeferencing", "transformation": { "type": "polynomial", "order": 0 }, "features": [ { "type": "Feature", "id": "3PxT6XD1hx7qMppe", "properties": { "pixelCoords": [ 5085, 782 ] }, "geometry": { "type": "Point", "coordinates": [ 4.4885839, 51.9101828 ] } }, { "type": "Feature", "id": "UhF5ACkLf4Unp1ah", "properties": { "pixelCoords": [ 5467, 1338 ] }, "geometry": { "type": "Point", "coordinates": [ 4.5011785, 51.901595 ] } }, { "type": "Feature", "id": "xBzgA9DqGWBSS3dX", "properties": { "pixelCoords": [ 2006, 374 ] }, "geometry": { "type": "Point", "coordinates": [ 4.405981, 51.9091596 ] } } ] } })32:[{"id":"2dbdfa301ffe864907c732212445341a52fbfe8785a1391ff7d9326535b0bd2e5044d9e46b04367debd45dfef575b887da581b5f89c66629353869641f80cae1","href":"https://static.observableusercontent.com/files/2dbdfa301ffe864907c732212445341a52fbfe8785a1391ff7d9326535b0bd2e5044d9e46b04367debd45dfef575b887da581b5f89c66629353869641f80cae1","name":"mask@4.svg","type":"image/svg+xml","lastModified":1634742062844.053,"size":1603},{"id":"8d80aba689148cb5e71bc5c9685dba5e785b21f12e712dd39dc0d690f8d47ecae5f61ca3b86e327040a25a9207ce8578a7364e054d6670aca990887ca9e627fe","href":"https://static.observableusercontent.com/files/8d80aba689148cb5e71bc5c9685dba5e785b21f12e712dd39dc0d690f8d47ecae5f61ca3b86e327040a25a9207ce8578a7364e054d6670aca990887ca9e627fe","name":"image@4.png","type":"image/png","lastModified":1634743661613.285,"size":3715399}] 2f:{"title":"IIIF Community Call - October 20, 2021","cells":[{"id":0,"value":"# IIIF Community Call - October 20, 2021","pinned":false,"hidden":false,"mode":"md"},{"id":688,"value":"htl.html``","pinned":false,"hidden":false,"mode":"ojs"},{"id":998,"value":"slide(htl.html`\n

Next steps for IIIF maps:

Photo geotagging and map georeferencing with web annotations

\n`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1038,"value":"slide(htl.html``)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1032,"value":"slide(await FileAttachment('image@4.png').image())","pinned":false,"hidden":false,"mode":"ojs"},{"id":1061,"value":"slide(htl.html``)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1027,"value":"slide(htl.html`\n

Geotagging photos and georeferencing maps are very similar tasks:

\n They both tie an image
\n (or a part of an image or even a single pixel)
\n (or multiple parts of an image or multiple pixels)
\n to a geospatial location
\n (or multiple geospatial locations).\n

\n`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1067,"value":"slide(htl.html`

Example annotations for geotagging and map georeferencing:

`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1045,"value":"slide(md`\n\\`\\`\\`json\n${JSON.stringify(geotagAnnotation, null, 2)}\n\\`\\`\\`\n`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1048,"value":"slide(md`\n\\`\\`\\`json\n${JSON.stringify(annotation, null, 2)}\n\\`\\`\\`\n`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":43,"value":"slide(html`\n

\n \n Allmaps

Open-source georeferencing, warping and exploring for IIIF maps

\n`, { \n fontSize: '200%',\n backgroundColor: 'rgb(15, 25, 82)',\n backgroundRepeat: 'no-repeat',\n backgroundSize: 'cover',\n backgroundPosition: 'center',\n \n backgroundImage: `url(\"data:image/svg+xml;utf8,${encodeURIComponent(await FileAttachment(\"mask@4.svg\").text())}\")`\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":853,"value":"slide(md`\nAllmaps can georeference and warp any map that's available through IIIF. Allmaps works in your browser, there's no need to set up and run complicated GIS infrastructure 🎉\n`, { \n backgroundRepeat: 'no-repeat',\n backgroundSize: '150%',\n backgroundPosition: 'center',\n backgroundImage: `url(\"data:image/svg+xml;utf8,${encodeURIComponent(await FileAttachment(\"mask@4.svg\").text())}\")`\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":153,"value":"slide(md`\n\\`\\`\\`json\n${JSON.stringify(annotation, null, 2)}\n\\`\\`\\`\n`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1076,"value":"slide(viewof clipboard)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1071,"value":"slide(htl.html``)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1126,"value":"slide(htl.html`\n

\n The Allmaps Tile Server takes georeference annotations and produces XYZ map tiles:\n

`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":996,"value":"slide(htl.html`

`)","pinned":false,"hidden":false,"mode":"ojs"},{"id":1055,"value":"## Annotations","pinned":false,"hidden":false,"mode":"md"},{"id":125,"value":"$31","pinned":false,"hidden":false,"mode":"ojs"},{"id":1043,"value":"geotagAnnotation = ({\n \"type\": \"Annotation\",\n \"@context\": [\n \"http://www.w3.org/ns/anno.jsonld\",\n \"http://geojson.org/geojson-ld/geojson-context.jsonld\",\n \"http://iiif.io/api/presentation/3/context.json\"\n ],\n \"motivation\": \"georeferencing\",\n \"target\": {\n \"type\": \"Image\",\n \"source\": \"https://iiif.bodleian.ox.ac.uk/iiif/image/a8a29d29-3d14-4ca9-84bc-e14668de7625/full/full/0/default.jpg\",\n \"service\": [\n {\n \"@id\": \"https://iiif.bodleian.ox.ac.uk/iiif/image/a8a29d29-3d14-4ca9-84bc-e14668de7625/\",\n \"type\": \"ImageService2\"\n }\n ]\n },\n \"body\": {\n \"type\": \"FeatureCollection\",\n \"purpose\": \"geotagging\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Point\",\n \"coordinates\": [\n 51.6019627,\n -3.8140584\n ]\n }\n }\n ]\n }\n})","pinned":false,"hidden":false,"mode":"ojs"},{"id":453,"value":"## Imports","pinned":false,"hidden":false,"mode":"md"},{"id":1092,"value":"viewof clipboard = Inputs.button('Copy georeference annotation to clipboard')","pinned":false,"hidden":false,"mode":"ojs"},{"id":1078,"value":"{\n clipboard\n navigator.clipboard.writeText(JSON.stringify(annotation, null, 2)) \n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":845,"value":"$${style}\n","pinned":false,"hidden":false,"mode":"html"},{"id":60,"value":"html``","pinned":false,"hidden":false,"mode":"ojs"},{"id":53,"value":"keyBindings","pinned":false,"hidden":false,"mode":"ojs"},{"id":47,"value":"import { slide, style, keyBindings, start } from '@bertspaan/slides'","pinned":false,"hidden":false,"mode":"ojs"}],"files":"$W32","stdlib":"1","titling":"auto"}

Photo geotagging and map georeferencing with web annotations

\n They both tie an image \n (or a part of an image or even a single pixel) \n (or multiple parts of an image or multiple pixels) \n to a geospatial location \n (or multiple geospatial locations).\n

Example annotations for geotagging and map georeferencing:

\n \n Allmaps

Open-source georeferencing, warping and exploring for IIIF maps

\n The Allmaps Tile Server takes georeference annotations and produces XYZ map tiles:\n

\n They both tie an image
\n (or a part of an image or even a single pixel)
\n (or multiple parts of an image or multiple pixels)
\n to a geospatial location
\n (or multiple geospatial locations).\n