Sravnitel

Sravnitel is a WordPress plugin by Elphel Inc. based on a jQuery plugin jquery.sravnitel.js.

Features

• Compare 2+ images
• Zoom and pan
• Initial zoom and offset
• Touch events: click, drag, pinch to zoom

Tips

• Click on the view area to quickly switch between left and right image
• Click on the zoom info in the top right to zoom-to-fit the view area
• To place several instances of the plugin assign unique ids: [sravnitel id=’test1′ …], [sravnitel id=’test2′ …]

Working demo

Elphel’s Blog: Lapped MDCT-based image conditioning with optical aberrations correction, color conversion, edge emphasis and noise reduction

Quick examples

• Fit image into the view window, w/o titles:
  [sravnitel images=”ID0,ID1,ID2″ width=640 height=480]
• Fit image into the view window, with titles and toggle button:
  [sravnitel images=”ID0,ID1,ID2″ width=640 height=480 showtitles=true showtoggle=true]
• Also fit image, with titles:
  [sravnitel images=”ID0,ID1,ID2″ width=640 height=480 showtitles=true zoom=0]
• Zoom 30%, with titles, x=0 and y=0 in the center of the view window:
  [sravnitel images=’ID0,ID1,ID2′ width=640 height=480 showtitles=true zoom=0.3 center_x=0 center_y=0]

Shortcode Parameters

• id – int – 0 – wrapper’s
  element id
• images – str – ” – (required) list of images ids (attachment_id), comma separated
• width – int – 530 – view window width px
• height – int – 300 – view window height px
• showtitles – bool – false – show/hide titles
• showtoggle – bool – false – show/hide button – switch between left and right image
• index_l – int – 0 – init, left image – is the index of the images array, starting from 0
• index_r – int – 1 – init, right image – is the index of the images array, starting from 0
• zoom – float – 0 – init, zoom, 0 – fit to view window, 1.0 – 100%
• center_x – int – 0 – init, x coordinate of the original image to be placed in the center of the view window
• center_y – int – 0 – init, y coordinate of the original image to be placed in the center of the view window