There are two aspects to organizing layers in a project:
Order of appearance of the layers on the map. Layers at lower positions are drawn first and layers at higher positions are drawn at the end. Top layers can hide elements of bottom layers.
Logical hierarchy based on the nature of the layers. In other words, groups and subgroups of layers that have a logical relationship. For example, there could be a group of layers related to roads, another to hydrography, and another to census. Organizing them in groups makes it easier for the users to work with layers.
You can set the layer order in the Layers tab and the layer hierarchy in the Layer groups tab of the project configuration interface.
In both tabs you can grant permissions to selected layers. The Layer Permissions section provides details about the permissions.
To order layers of a project, open the tab titled List. This section presents the layers in their order of appearance on the map. The lowest position is the first layer to be drawn on the map.
To change the order, you must use the Modify menu located at the top of the column displaying the position of each layer. You can also select one or more layers and move them using the available options (Move up, Move down, Move at…, etc.). The option Reorder layers opens a window displaying all the layers that you can reorder using drag-and-drop actions.
To organize layers in groups, open the tab Layer groups. This section presents the current hierarchy of layers.
By default, all layers of the project are in one unique group called Layers.
To create a new group, press Create group. Fill the layer group parameters as described below:
Once groups have been created, you can move layers towards these groups using the Modify menu located at the top of the column displaying the position of each layer.
Name
Enter a name for the new group. The name must be unique.
Description
Optionally enter a description for the new group. This description will be visible to users.
Visible
Makes the group initially visible when the project is opened. All visible layers inside the group will be displayed.
Always listed
Ensures the group is always listed (displayed in the layer management window ) even if it contains no layer. By default, empty groups are not listed. A group can be empty if it contains no layer, if all the layers it contains are not listed or if the user doesn’t have the permission to see the layers of the group.
Image
This option allows you to select an image (an icon) to display with the group of layers.
Press Choose to open the file browser and select the image file.
The image size should not exceed 100*100 pixels.
This option is only available for JMap NG applications. Other application types do not display the image.
The layers of a project are displayed in the Layers tab of the project configuration interface. This icon located in the Layers section of the project interface also takes you to the Layers tab.
The table shows basic information about each layer of the project. When you click on the name of a layer, a details section displays.
In this tab you can define the order of layers in the project. The Organizing Layers section offers details on this topic.
Buttons allow you to perform management tasks for the layers you select in the table, as well as add new layers to the project.
The icon in the Layers section of the project configuration interface gives you the three options to add a layer to the project.
When you select one or more layers you can grant permissions for the whole set. Refer to Layer Permissions.
You can edit different settings for a set of layers. You must select the layers to modify in the List tab of the Layers section of the project. Afterwards, press the Update button, and click on the Bulk edit… option. The Bulk edit interface will open.
This button allows you to synchronize the selected layers with JMap Cloud. The section Sharing layers with JMap Cloud provides details on the subject.
Deletes the selected layers.
Change ‘Antialiasing’
Check if you want to change this setting.
Check New Value to enable the antialiasing feature. Uncheck New Value to disable the antialiasing feature. The Style section provides details on this parameter.
Change Minimum scale
Check to change the minimum scale for displaying layers.
Check Infinity or 1: and in this case, indicate the scale.
The General Settings section provides details on this topic.
Change Maximum scale
Check to change the maximum scale for displaying layers.
Check Zero or 1: and in this case, indicate the scale.
The General Settings section provides details on this topic.
Change Request mode
Check to change the data request mode.
Check the option of your choice.
The Creating Layers section provides details on this topic.
Change Description
You can write a new description for the layers.
Create
Initiates the creation of a new layer. Refer to Creating Layers.
Clone/Reference
Allows you to duplicate or reference a layer from another project located on the same server or on a different JMap Server. Refer to Sharing Layers.
Import…
Allows you to import layers one by one from a project exported from another JMap server. Refer to Importing layers.
Update data sources
Updates the spatial data sources associated with the selected layers. Refer to Spatial Data Sources.
Update caches
Launches the preparation of the vector data cache for the selected layers. Refer to Creating Layers.
Update - Bulk edit…
Allows you to edit certain layer parameters in batches. The Bulk editing a layer set section provides details about this topic.
