Themes vary the display of features on a map layer based on properties or attributes associated with the dataset.
For example, a theme for a point layer might display water source locations with a different symbol for each type of water source, for an area layer each area may be colour coded based land classification.
Conditional themes are created and edited in the Map Layer Style screen, with each row representing a different condition within the theme. In simple terms if condition equals a, then style accordingly, if condition equals be then style differently. Condition options
- Header: The property or attribute to create a condition on, the options available will be governed by the imported data set.
- Aggregate: For mapping dataset this option can be ignored and left at its default: None. Type: The comparison method for the condition, the options available will depend on the header property chosen.
- Value: The condition value to match against
In this example below two conditions have been created:
For each condition set the style settings accordingly as shown in the image below:
It is important the conditions created cover all the possible attribute values for the data to be displayed in a theme. If the data does not match an existing condition it will not be displayed. For instance in the above example, if the dataset included Landfills they would not be displayed.WMS Mapping Datasets
A WMS Mapping Dataset (Or Web Mapping Service) allows for a mapping service that is stored over the internet to be imported into OpenGround Cloud Professional to be used along with the other mapping tools that are available.
OpenGround Cloud Professional comes with 2 different datasets included by default; The British Geological Survey (BGS) Geoindex – Boreholes Data Theme and the BGS 50000 scale digital geology data set. To activate these to be used within the mapping interface, select the Manage Connections option from the WMS section of the Mapping ribbon.
Click on the dataset that is to be included and select Edit.
Select the 'Include on Map' check box and select Save to include the data on the map.