Overview

It's possible to filter Map Layers in two ways;

1. Filter by Values: Use our query builder to decide what features show on the map. This sets conditions and reads the information stored within each filter.
   
2. Filter by Selection: If you know which features you want to show and hide, use this.

Filter by Values

To filter a Map Layer based the values stored within Map Features:

1. In the Layer Control, find the layer you want to filter and switch it on
2. Hover over the Tick icon next to the Layer name. This turns into a Cog. Click the Cog.
3. In the Layer mini-menu, click Filter
4. Select a Column to filter from (these are the categories of information stored within the layer)
   
5. In the Operator drop-down, choose from one of the following:
   
   • Equals (column value must exactly match what you've entered)
   • Starts With (column values that start with the text you've entered)
     
   • Ends With (column values that end with the text you've entered)
     
   • Contains (column values where you text appears anywhere within it)
     
   • Not Equal (find everything apart from the value you entered)
     
   • Is Null (a blank value)
     
   • Is Not Null (find everything but the blank values)
     
   • Before (before a date you set)
     
   • After (after a date you set)
     
   • On or Before (on or before a date you set)
     
   • On or After (on or after a date you set)
6. In the 'Filter Value' text box, enter the value you require. Note: this may be a drop-down limiting your choice of options
   

Filter by Selection

To filter a Map Layer by selection:

1. In the Layer Control, find the layer you want to filter and switch it on
2. Click on the Map Object you want to filter. This is the same operations as if you were Info Clicking the object to view its attribution.
   
   • HINT: You can select multiple Map Objects by holding down the CTRL keyboard button whilst clicking on the map. When selecting multiple objects, the attribution won't show on the left-hand side.
3. In the Info Click panel, click the Filter icon.
   

Clearing a Filter

To clear a Filter:

1. Find the layer in the Layer Control
2. Click the blue Filter icon alongside the tick