New Features

• Full handling of stations with multiple names, including display of all names in popups and links to alternative names in the survey tree menu.

• Improved initial state for leg shading by distance, with all lines shaded by distance from the connected entrance(s).

• Optional display of full station names when under the mouse pointer (accessed by the keyboard shortcut <ALT>L.

• Leg length, segment length (a sequence of legs between junctions containing that leg) and the straight line length of the segment are displayed with click on a survey leg.

• Public API improved to include more survey topology information including segmentation between junctions and multiply named stations.
• Fixups applied to Survex models containing splay legs connected at both ends, these legs are displayed as normal legs and warnings are shown for these stations.

Bug Fixes etc.

• Faulty rendering of some .lox models LRUD based walls fixed.
• Distance information for some is now more accurate.
• Performance of station under the pointer detection improved.
• Redundant and duplicated code removed.
• Popup text can now be translated.
• Missing shortcuts added to help page.
• Various UI improvements and fixes.
• Updated to Three.js 134.

New Features

• Selectable line width

• New 'entrance', 'station' and 'leg' events. These export survey topology (see demo3 for examples of use)

Rose diagram produced with chart.js

simplified network rendered using cytoscape

• Entrance labels that are overlapped by other labels are now hidden
• Configurable angle for entrance labels

Bug Fixes and other changes

• Improved selection of stations and entrance labels
• Mouse controls handle scrolled pages
• Improved parsing speed for Therion lox models
• Reduced memory consumption
• Removal of unused code and code improvements

2.2.1

Bug fixes

• Fixed scaling issue with .lox terrains

New Features

• Duplicate legs displayed separately with dashed lines.
• Information menu tab displays counts of duplicate legs, surface legs and splays.

bug fixes

• Scaling issue introduced in 2.1.3 fixed.

Bug fixes

• stalled image overlays when an image is missing.
• missing translation of UI text (reported by @damjang)
• template language file updated

Changes

• zoom mode defaults to zoom to cursor (was zoom to view center)
• updated to Three.js 127 (resolves memory leak after disposal of viewer)

Warning

IE11 is no longer supported.

New features

• Export high resolution images (graphics card dependant).
• Export glTF models.
• Flat shading of walls and scraps. (key combination f to toggles between modes)
• User interface (UI) for display of underground centre lines added.
• Independent selection of entrance labels and marker dots visibility.
• Survey structure UI tab defaults to display as a tree.
• Grid based on survey original coordinate reference system (CRS) (approximate when using external terrain).
• Surface lines displayed with dotted lines for fixed and height based shading.
• Automatic handling of EPSG CRS definitions.
• UI indication of drag and drop support when a drag operation is taking place.
• Adjustment of focal length in perspective view with '(' and ')' keys.
• Selection of principal display colours from UI (at the bottom of the settings page).

Bug fixes

• Improved handling of Cesium tiles with insufficient vertices to produce a terrain surface.
• CSS style leakage fixed.
• Size of entrance markers reduced.
• Fixes for handing Survex models with path separator in strings, and over zealous kay stroke capture ( thanks @apeo).

Other changes

• Build/development configuration simplified.
• Updated to Three.js 125
• Obsolete code removed.
• Minor performance improvements to Survex file parsing.
• General code improvements.

Bug fixes

• Cut of a selection failed.
• Minor display improvements.

New features

• Use of GPS requires configuration property useGPS: true.
• Examples added to zip archive

Bug fixes

• missing worker files from zip archive

New Features

• New v2 API supporting muliple instances, see the installation and reference documentation for details.
• Instances can now be destroyed dynamically without refreshing the browser page. [Note: for complete freeing of memory a one line patch to Three.js is currently required].
• New zoom mode allows zooming over the location of the mouse pointer instead of the center of the view. This is selected with the X keyboard shortcut of from the settings menu.
• Dynamic selection of control mode. The mouse/heyboard controls are toggled between original and 'Aven' styles with the keyboard shortcut S.
• Experimental location mode to provide an 'augumented reality' style display.
• Example files now included with zip packaging.
• Key commands are now only active when the mouse is over the viewer area.
• Text entrance labels can now be clicked to display station information.
• A minimum zoom level can be specified by image overlay providers.

Bug fixes

• Rework of terrain tiling to improve caching behaviour.
• Terrain surface no longer visible from a view point below the surface.
• Multiple minor bugs and code improvements.