| var degrees2meters = function(lon,lat) { | |
| var x = lon * 20037508.34 / 180; | |
| var y = Math.log(Math.tan((90 + lat) * Math.PI / 360)) / (Math.PI / 180); | |
| y = y * 20037508.34 / 180; | |
| return [x, y] | |
| } | |
| //test | |
| lon= -77.035974 | |
| lat = 38.898717 |
| { | |
| "baseLayer": { | |
| "tilejson": "2.2.0", | |
| "name": "base", | |
| "version": "1.0.0", | |
| "scheme": "xyz", | |
| "tiles": [ | |
| "https://a.tile.openstreetmap.org/{z}/{x}/{y}.png" | |
| ] | |
| }, |
| { | |
| "baseLayer": { | |
| "tilejson": "2.2.0", | |
| "name": "base", | |
| "version": "1.0.0", | |
| "scheme": "xyz", | |
| "tiles": [ | |
| "https://a.tile.openstreetmap.org/{z}/{x}/{y}.png" | |
| ] | |
| }, |
| { | |
| "@context": [ | |
| "http://www.w3.org/ns/anno.jsonld", | |
| "http://iiif.io/api/presentation/3/context.json" | |
| ], | |
| "type": "Manifest", | |
| "id": "https://figgy.princeton.edu/concern/scanned_resources/480ef315-411f-4176-832b-956c3fa005a0/manifest", | |
| "label": { | |
| "eng": [ | |
| "[Concert, 2015, January 09-10] [sound recording]" |
| { | |
| "type": "AnnotationPage", | |
| "@context": "http://www.w3.org/ns/anno.jsonld", | |
| "items": [ | |
| { | |
| "id": "https://annotations.allmaps.org/maps/47499d84a5b2c6b2", | |
| "type": "Annotation", | |
| "@context": [ | |
| "http://iiif.io/api/extension/georef/1/context.json", | |
| "http://iiif.io/api/presentation/3/context.json" |
| { | |
| "baseLayer": { | |
| "tilejson": "2.2.0", | |
| "name": "base", | |
| "version": "1.0.0", | |
| "scheme": "xyz", | |
| "tiles": [ | |
| "https://a.tile.openstreetmap.org/{z}/{x}/{y}.png" | |
| ] | |
| }, |
| { | |
| "baseLayer": { | |
| "tilejson": "2.2.0", | |
| "name": "base", | |
| "version": "1.0.0", | |
| "scheme": "xyz", | |
| "tiles": [ | |
| "https://a.tile.openstreetmap.org/{z}/{x}/{y}.png" | |
| ] | |
| }, |
Using Eric Larson's prompt with a IIIF link inserted, this is the result.
Prompt:
Digitized Historical Map OCR + Placenames + Bounding Box + Description
Yourtask is to analyze this digitized historical map image (https://iiif-cloud.princeton.edu/iiif/2/fc%2F46%2F1c%2Ffc461ce39d154c73955e2bf19c487ded%2Fintermediate_file/full/8256,/0/default.jpg)
and produce a high-accuracy extraction of printed textual conten...
Gemini analysis of https://iiif-cloud.princeton.edu/iiif/2/d8%2Fa0%2Fb7%2Fd8a0b714e32f4f099d8cb5c22cb85a0c%2Fintermediate_file/full/8582,/0/default.jpg
Using: https://gist.github.com/ewlarson/9474f690f0d39a9f435cba1eec055b11
{
"text": [
{
"content": "PRINCETON N.J.",
| { | |
| "type": "FeatureCollection", | |
| "name": "Sanborn_Map_Princeton_NJ_1927_Sheet_7_Extraction", | |
| "crs": { | |
| "type": "name", | |
| "properties": { | |
| "name": "urn:ogc:def:crs:OGC:1.3:CRS84" | |
| } | |
| }, | |
| "features": [ |