HSLayers do offer possibility of measurement of lengths and areas. Unlike most other systems, HSLayers do enable to the user to measure several objects at once - not only one line can be drawn, but many. User can also combine lines with areas.
HSLayers extended the measuring function into the user graphics concept. User can draw any geometry feature, set its attributes. Along this, areas are lengths are calculated and continually recalculated.
Use can draw new graphics, delete existing once, set attributes (simple or complex).
Resulting graphics can be printed or used in Permalink or Embedded map.