JMap Cloud
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  • Welcome to JMap Cloud documentation
  • JMap Cloud Portal
    • JMap Cloud Portal User Guide
      • Introduction
        • Accessing JMap Cloud Portal
        • User Interface
        • Dashboard
      • Roles
      • Functions Reserved for Administrators
        • Managing the Organization
          • General
          • API Keys
          • Members
          • Invitations
      • Connecting Data: Data Sources
        • Creating Data Sources
          • Vector/Raster Data Files
          • Non-spatial tabular data files
          • WMS/WMTS Service
          • Vector Tile Service
          • Feature Service
        • Status of a Data Source
        • Managing Data Sources
          • Displaying and editing information
          • Updating data
          • Permissions
          • Removing a spatial data source
        • Uploading Files
      • Organizing Data into Projects
        • Creating a New Project
        • Managing a Project
          • Open the Project
          • Editing a project
          • Permissions
          • Getting the project's public link
          • MVT Cache
          • Deleting the project
      • Configuring Project Content
      • Jobs
  • JMap NG
    • JMap NG User Guide
      • Introduction
        • Connecting to JMap NG
        • User Interface
        • Navigating on the Map
        • Profile and user settings
      • The Data
        • The Layers Panel
        • Data Layers
          • Displaying layers
          • Thematics
          • Layer Information
          • Geographic Extent of the Layer
          • Making layer elements selectable
      • I Wish to...
        • Display Element Information
        • Select Elements on the Map
        • Measure Distances and Surfaces
        • Add Annotations to the Map
        • Export / Print a Map
    • JMap NG Developer Documentation
      • Startup Options
      • Extensions
      • Examples
        • Start the JMap NG Core library
        • Start the JMap NG App
        • Add a JMap NG App extension
        • Toggle a JMap layer visibility
        • Add a layer to display custom data from GeoJSON file
        • Locate and select features by attribute query
        • Add an event on move end
        • Add attributions on the map
        • Locate and select feature by id
        • Locate and select feature(s) by location
        • Custom mouseover on a layer
        • Create a custom form in a div
      • Changelog
  • JMap Cloud API
    • JMap Cloud API Documentation
  • JMap Cloud Plugin for QGIS
    • JMap Cloud Plugin User Guide
      • Installing the plugin
      • Connecting to JMap Cloud
      • Opening a project
      • Editing features
      • Exporting a project
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  1. JMap NG
  2. JMap NG User Guide
  3. The Data
  4. Data Layers

Displaying layers

PrécédentData LayersSuivantThematics

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You can select the layers to display in the map.

To display a layer, you must display the group and the subgroups in which the layer is found.

  1. Slide the switch on the group's card from to in order to enable the display of the group.

  2. Click on to open the group card and display the layers and subgroups it contains.

  3. Slide the switch on the subgroup's card to enable its display. The icon of the subgroup will change color .

    The icon appears in the layers' cards whose display is disabled. No icon appears in layers' cards whose display is enabled.

  4. Click on to display the layer. The icon disappears, and the layer is displayed in the map.

  5. To disable the display of a layer, bring the mouse pointer to the card of that layer. The icon appears.

  6. Click on the icon, which turns to . The layer will no longer be displayed in the map. Its symbol will turn gray.

  7. Slide the display switch of the group to this position if you wish to disable the display of all layers comprising this group. Even the layers whose display is enabled will no longer be shown.

Displaying layers based on the map scale

Some layers are configured to be displayed within a given scale interval. Displaying an abundance of small map elements when a small scale is selected (i.e. when the map displays a large territory with few details) can make it very difficult to read the map. Layers that have elements with these characteristics are usually displayed at a larger scale, when the map contains more details on a limited territory.

When a layer is not visible because of the map scale, its name and symbol will appear in very light gray. When you change the scale, these colors will become darker, indicating that the layer appears in the map if its display is enabled.