Heratio Help Center article. Category: Viewers & Media.

OpenSeadragon Image Viewer

User Guide

View high-resolution images with deep zoom capability for examining fine details in photographs, documents, and artwork.


Overview

OPENSEADRAGONVIEWERHighResolutionDeepZoomScrolltozoom•Dragtopan🏠Home🔍ZoomIn🔍-ZoomOut⬜Full

What is OpenSeadragon?

OPENSEADRAGONFEATURES🔍DeepZoom-Examinesmallestdetails⚡Smooth-Fluidzoomandpananimations📱TouchReady-Worksontabletsandphones🖼️AnySize-Handlesmassiveimages🔗IIIFCompatible-Internationalimagestandard

Opening the Viewer

From a Record

  1. Browse to a record with an image
  2. Click on the image thumbnail
  3. The viewer opens automatically
RECORDVIEW[Image]ClicktoopeninviewerTitle:HistoricalMapofCapeTown,1850Reference:MAP/1850/001

Mouse Controls

ACTIONHOWTOZoominScrollwheelUPorclick🔍buttonordouble-clickZoomoutScrollwheelDOWNorclick🔍-buttonPan/MoveClickanddragResetviewClick🏠Homebutton

Touch Controls (Mobile/Tablet)

ACTIONHOWTOZoominPinchoutwardwithtwofingersordouble-tapZoomoutPinchinwardwithtwofingersPan/MoveDragwithonefingerResetviewTap🏠Homebutton

Toolbar Buttons

TOOLBAR🏠Home-Resettofullimageview🔍ZoomIn-Magnifytheimage🔍-ZoomOut-Seemoreoftheimage⬜Fullscreen-Expandviewertofullscreen📐Rotate-Turnimage90degrees(ifenabled)

A small overview helps you track your position:

MAINVIEWYouare(Zoomedinarea)hereMini-mapTherectangleshowswhichpartoftheimageyou'reviewingClickonthemini-maptojumptothatarea

Fullscreen Mode

Enter Fullscreen

  • Click the Fullscreen button (⬜)
  • Or press F on your keyboard

Exit Fullscreen

  • Press Escape
  • Or click the fullscreen button again
FULLSCREENMODEMaximumscreenspaceforviewing[PressESCtoexit]

Viewing Multiple Images

If a record has several images:

IMAGESTRIP1[2]345ClickathumbnailtoviewthatimageUsearrowstonavigate

Keyboard Shortcuts

KEYACTIONor=Zoomin-or_Zoomout0(zero)ResettohomeviewFTogglefullscreenArrowkeysPanleft/right/up/downWZoominSZoomoutAPanleftDPanright

Tips for Viewing

VIEWINGDIFFERENTCONTENT📜Documents-Zoomtoreadhandwritingorsmalltext🗺️Maps-Exploreregions,findplacenames📷Photographs-Examinefaces,details,backgrounds🎨Artwork-Studybrushstrokes,signatures,damage📋Forms-Readfilled-inentries

Best Practices

✓DO✗DON'TUsefullscreenfordetailSquintatsmallviewsWaitforimagetosharpenPanwhileloadingUsenavigatortoorientGetlostinlargeimagesTrykeyboardshortcutsOnlyusemouseZoomgraduallyJumpmaxzoomimmediately

Troubleshooting

ProblemSolutionImageblurrywhenzoomedWaitfortilestoloadHighdetailloadsprogressivelyControlsnotrespondingClickinsidetheviewerfirstRefreshthepageNavigatormissingMaybehidden-lookfortogglebuttonZoomfeelsjerkyCloseotherbrowsertabsTryadifferentbrowser

Need Help?

Contact your system administrator if you experience issues.


Part of the Heratio AHG Framework