Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

This tool allows to produce a map which indicates the distance from a single location, such as a ‘walking distance to schools’. Time-based travel maps can be created for different two modes of transportation:  foot and motor vehicle. The newly created isochrones are saved as Earthlight layers in the repository. This is how generated and styled instance of Isochrones looks:

...

  1. Generate based on:
    image
    This field allows you to choose a base for generated isochrone. You can select one from the following bases:
    • Distance from start point – generates isochrone based on the entered distance.
    • Time from start point – generates isochrone based on time.
  2. Value and unit
    Here you can enter value and select a unit type for the base selected in the Generate basing on field. This field allows to select one from the following units:
    • Units for Distance from start point base:

      • meters

      • kilometers

      • feet

      • miles

    • Units for Time from start point base:

      image

      • minutes

      • hours

      Info

      Generate Isochrone tool accepts 3 types of characters in value field: numbers, commas and dots. You can use them all together in the value field, for example:

      Image Added

      Image Added

    There are two types of isochrones: monovalent and multivalent
    • Monovalent isochrone

      In this scenario, generated isochrone will be based on just one value. This is how already styled monovalent isochrone instance looks:

    • Multivalent isochrone

      Info

      In case of multivalent isochrones you need to separate each value with coma "," character.

      Multivalent isochrones allows you to display few values in a single isochrone. This is how already styled multivalent isochrone layer looks:
      Image Modified

  3. Locomotion type

    This section allows you to select a locomotion type. Earthlight supports two locomotion types: foot and motor vehicle.
  4. Create range areas in results

    This option allows you to change the way how isochrones are being generated. The standard method generates only routes (lines). By using Range areas method you can see polygons which completely cover the selected area. This is how already styled multivalent isochrone with range areas layer looks:
  5. Control buttons

    This section contains 2 buttons:
    • Generate – if all isochrone settings are configured you can click this button to start the operation.
    • Cancel – this button is closing the Generate Isochrone Settings window. Settings are not saved.

How to use Generate Isochrone tool.

To generate an isochrone layer please go to Routing tab and select Set Start Point tool.

...

The isochrone layer is almost ready. the only thing left is to configure the styles for the layer elements(records).

How to set styles for Isochrone layers.

To learn more about styling isochorne layers please follow this link: http://statmap.co.uk/?page_id=8654

...