{ "brownLeather": { "method": "Built-in imagegen", "prompt": "Seamless flat evenly lit warm dark chestnut fine-grain old bookbinding leather. No bevels, frames, stitches, objects, writing, gradients or shadows. Intended small repeating web texture.", "sha256": "5df6bb7b369c26a83250342e46b89c3a9140ccd3911e0b1b07fd1b5c68ffea26", "sourcePath": "src/assets/historicMapMaterials/brownLeather.png", "display": "media/brownLeather.webp" }, "paper": { "source": "src/assets/images/bookMaterials/bookPaperTile.png", "method": "Existing London Webcam paper asset, unchanged bytes", "display": "media/agedPaper.webp" }, "maps": { "method": "Unchanged acquired source JPEGs kept under src/assets/historicMaps/booth1899 with Git LFS. Review JPEG derivatives generated by ImageMagick resize to maximum dimensions 1920 and 4096, qualities 86 and 88.", "rightsEvidence": "https://booth.lse.ac.uk/about" }, "stitchedLeather": { "display": "media/stitchedLeather.webp", "method": "Built-in imagegen. Display derivative crops the exterior margin (2010x625+20+75) and resizes to 1024px width as WebP; original preserved.", "prompt": "Finely finished antique chestnut leather horizontal nine-slice panel. Burnished edges, double golden-brown saddle stitching, blind-tooled Victorian botanical corner ornaments and tiny brass corner studs. Flat frontal lighting, no text or raised bevel; quiet centre for readable controls.", "sha256": "a651b896771934f5637862eceaaa66ce98c8482c6b72b73d2d1bda1f348ebd48", "sourcePath": "src/assets/historicMapMaterials/stitchedLeatherOriginal.png" }, "brassControls": { "method": "Built-in imagegen; 1254px square 3\u00d73 transparent PNG atlas, downsampled to 384px PNG for delivery. CSS selects cells without altering artwork.", "sourcePath": "src/assets/historicMapMaterials/brassControlAtlasOriginal.png", "display": "media/brassControls.png", "sha256": "26d6604eea8ce576f520a2be7520b61a50c8dc798b2092e4cdba75af21e77b75", "prompt": "Create one production PNG sprite atlas for an antique London map web app. Square image, 1536 by 1536 preferred, transparent alpha background. A precise 3 by 3 grid of NINE separate antique BRASS hardware symbols, one centered within each equal square cell; generous transparent margins, no cells or dividers drawn. The symbols all have the same warm aged brass, gently tarnished edges, restrained fine Victorian engraved decoration, flat frontal lighting, legible silhouettes at 28px display. Not shiny modern gold, not orange, no leather or paper background, no text, no labels, no cast shadows beyond tiny contact shading within metal. Each symbol is an isolated solid metal cutout with genuine transparent space around and within. Row1 left PLUS sign with small engraved tips, centre MINUS sign horizontal bar, right FIT/RESET icon four L-shaped corner brackets. Row2 left LEFT arrowhead, centre RIGHT arrowhead, right PLAY right-facing triangle. Row3 left PAUSE two upright bars, centre MENU three horizontal bars, right LAYERS three offset horizontal map-sheet rectangles. Exactly nine symbols; all centered on their cell centres x=256,768,1280 and y=256,768,1280 if 1536 square. All symbols confined to middle 60% of cell width/height, consistent medium thickness, antique cartographic instrument aesthetic. This is UI sprite artwork, not a screenshot or a mood board." }, "brassPlaque": { "method": "Existing London Webcam breadcrumb brass plaque, trimmed exterior transparent margins and resized to640px for controls and timeline fittings. Original site asset unchanged.", "sourcePath": "src/assets/images/bookMaterials/breadcrumbBrassPlaque.png", "display": "media/brassPlaque.png" }, "postalWatermark": { "sourcePath": "src/assets/images/headerMaterials/headerStampLogo.png", "display": "media/londonWebcamStamp.png", "method": "Existing London Webcam postal logo, unchanged bytes; translucent CSS display." }, "compassThumb": { "display": "media/compassThumb.svg", "method": "Original code-native engraved eight-point compass ornament." }, "homepageMapFragments": { "method": "Existing catalogue JPEG overviews resized to cover520x360 and cropped centrally, WebP quality84. No invented historical content.", "display": ["media/promo/london1677.webp", "media/promo/london1899.webp"], "source": ["media/earlyAtlasogilbyMorgan1677Overview.jpg", "media/sheet6Overview.jpg"], "inventoryIds": ["ogilbyMorgan1677", "sheet6"], "credit": "Ogilby & Morgan1677 via catalogue; Booth maps1898\u201399 / LSE Library. Full acquisition and rights evidence in provenance index." }, "chartIndexFrame": { "method": "Built-in imagegen. Original preserved; delivery cropped1172x1171+41+42 and resized512px. CSS preserves80px source corners in26px display corners and repeats edges.", "sourcePath": "src/assets/historicMapMaterials/chartFrameOriginal.png", "display": "media/chartFrame.png", "sha256": "916bfe0f0521a79c46089f28414494fd6ce8c306797888cad4b82b98699ab92c", "prompt": "Production nine-slice UI border PNG for antique London map chart-index menu. Square512x512 target, transparent center and exterior. Straight-on flat thin dark bronze cartographer folio frame, restrained engraved acanthus at each CORNER, fine twin brass rules along edges, tiny corner rivets. All ornament confined within 48 pixels of outer edges; straight middle edges are uniform repeatable rules, no ornament in center. Genuine alpha transparent empty middle 400x400. No text, no plaque, no background paper, no bevels or reflections. Intended9-slice with corners preserved48px and edges repeated to frame a tall paper dropdown; fine antique matte bronze, no long shiny gold bars. Smallest supported size suitable for512px source." }, "timelineRail": { "method": "Built-in imagegen. Original preserved; delivery cropped2170x247+1+222 and resized768px. Fixed ornament end caps with repeating centre ruler.", "sourcePath": "src/assets/historicMapMaterials/timelineRailOriginal.png", "display": "media/timelineRail.png", "sha256": "a1932c2d3ea44b214dd6ea27f72898e094d18908a63f90ebc7ad734278864cda", "prompt": "One production transparent PNG antique cartographer timeline ruler rail. Long horizontal wide shallow aspect12:1 target768x64 pixels. Flat frontal matte aged brass engraved narrow rail with delicate symmetrical Victorian leaf flourishes ONLY at left and right ends, fine etched measuring ticks along middle, open transparent space around it. Continuous uniform straight center rail only12px high, end floral ornaments maximum52px tall. No text no numerals no dates no background paper no leather no knobs or circles in middle. Intended width-responsive9-slice rail where64px end caps remain intact and narrow straight central rail repeats horizontally without distortion. Restrained antique map instrument matching dark bronze and honey brass. Smallest supported size sufficient for768x64px output.", "historicalMarkers": [ { "year": 1801, "event": "First official census of England and Wales", "source": "https://www.ons.gov.uk/census/2011census/howourcensusworks/aboutcensuses/censushistory/themoderncensus" }, { "year": 1851, "event": "Great Exhibition opens", "source": "https://www.vam.ac.uk/articles/the-great-exhibition-of-1851" }, { "year": 1894, "event": "Tower Bridge opens", "source": "https://www.towerbridge.org.uk/about-us" } ], "positioning": "Map editions are ordinal slider stops; historical milestones interpolate between adjacent available map dates and select the nearest available map without external navigation." }, "londonMapFrame": { "method": "Built-in imagegen. Requested512x512 2\u00d72 transparent corner atlas; tool returned1254x1254. Original retained unchanged; delivery resized to512x512. Four square sprite cells preserve aspect ratios at44\u201396px (40px on short screens). Independent SVG edge tiles repeat at32px without stretching. All motifs are original decorative London references, not historical evidence or official heraldry.", "sourcePath": "src/assets/historicMapMaterials/londonMapCornersOriginal.png", "display": "media/londonMapCorners.png", "edgeAssets": ["media/brassMapEdge.svg", "media/brassMapEdgeVertical.svg"], "prompt": "Production transparent PNG sprite atlas for rich antique London-inspired map viewport CORNER ornaments. Exact 2x2 equal square grid, target512x512 total, each cell256square for up to96px CSS use at2x. FOUR separate carefully aligned L-shaped corner pieces, no dividers, no background. Cell top-left: top-left L corner with finely sculpted winged heraldic dragon, small Tudor rose, elegant acanthus scrollwork. Cell top-right: top-right L corner with miniature Westminster-inspired portcullis, rose and chain engraving. Cell bottom-left: bottom-left L corner with London bridge arches, flowing Thames-wave engraving and curling leaves. Cell bottom-right: bottom-right L corner with elegant nautical compass medallion, oak leaves and river scrollwork. These are original decorative London references, not reproductions of official coats of arms. Upright motifs in every corner, don't rotate buildings. Each ornament hugs its cell's two OUTER edges, joining two very thin straight brass edging tails that extend toward midpoints of adjacent sides. The inner diagonal area of each cell must be completely transparent, so the underlying map stays visible. Both horizontal and vertical tails end in a uniform thin narrow strip, allowing separate repeated edge segments to meet cleanly. Aged honey brass, dark engraved incisions, intricate but legible sculpted highlights; no shiny chrome, no black background, no white halo, no heavy bevel, no text, no lettering. Truly transparent alpha around and within ornaments. Orthographic frontal view with overhead even lighting, no offset cast shadow. Match the same moderate scale and corner clearance in all four equal cells. Generous8px outer padding per cell. Deliver sprite only, no mockup. Smallest supported output suitable for512px production source.", "sha256": "6b2708d7764cddd46e4ed4581a21abe94c121bea2af2a70a3a6f7e0edbad1278" }, "londonMapFrameReplacement": { "method": "Built-in imagegen. Requested512x512 transparent sprite; tool returned1254x1254. Original preserved in Git LFS; ImageMagick delivery export512x512. Four square cells render64-112px (52px on short screens). Opaque eight-pixel perimeter backing and opaque repeating SVG rails seal all four viewport edges. Animal ornaments extend inward; no outer map gutter.", "sourcePath": "src/assets/historicMapMaterials/londonAnimalCornersOriginal.png", "display": "media/londonAnimalCorners.png", "edgeAssets": ["media/brassMapEdge.svg", "media/brassMapEdgeVertical.svg"], "prompt": "Create a production transparent PNG sprite atlas for an antique London map app. Target512x512 total, exactly2x2 equal square cells. FOUR separate ornate L-shaped BRASS corner castings. Each casting MUST have perfectly straight flat OUTER horizontal and vertical edges lying EXACTLY on its cell boundary, ZERO exterior padding, zero transparent margin along these two outward-facing sides. Continuous solid8percent-width brass rim along each outward side; intricate sculptural ornament extends INWARD only. Inner diagonal space genuinely transparent. Upper-left cell: northwest corner, a proud sculpted heraldic LION head and mane, acanthus scrolls and tiny Tudor rose. Upper-right cell: northeast corner, winged CITY OF LONDON inspired DRAGON curling inward around a rose. Lower-left cell: southwest corner, a heraldic LION in profile with curled tail and Thames wave scrolls. Lower-right cell: southeast corner, a regal SWAN with raised wings, oak leaves and compass engraving. Original decorative art, no official coats of arms, no lettering. Four motifs upright, balanced visual mass. Warm antique honey brass with finely engraved dark recesses and convincing satin metallic relief, beautifully crafted Victorian cartographic instrument aesthetic. Orthographic front view, even overhead illumination, no offset cast shadows. Every cell corner has a squared ninety-degree outer silhouette, no rounded outer corners. Brass horizontal and vertical tails touch full cell edges and remain a consistent thickness at ends to join tiled brass rails. No frame around whole sprite, no dividers, no backdrop, no paper, no leather. Designed to remain legible at72-112px per corner. Deliver only transparent four-corner sprite artwork, no mockup.", "sha256": "f6e90af4403f9d88435225f457de910684e314913fd14d7f72e63826e59054f6", "motifs": [ "Lion head and rose", "London-inspired dragon", "Lion with Thames waves", "Swan, oak and compass" ], "note": "Original decorative references, not official heraldry or historical map evidence." }, "homepageAtlasPreview": { "display": "media/promo/atlasPreview.webp", "method": "Screenshot of the actual local atlas at1440x900, exported with ImageMagick to960x600 WebP quality86. No generated interface or invented map content.", "map": "Booth1898\u201399 / LSE Library", "sha256": "7cabd2a69c2430efe02724c1dc8587cea2a1939958bebaefa20e064de9b12e48" } }