Current location:

Nodes

Applicability:

Cadcorp SIS Map Modeller
Cadcorp SIS Map Editor
Cadcorp SIS ActiveX Modeller

Ribbon Group:

Analysis-Topological Connectivity

Map Window:

Conditions for use:

Item Class: Link / Node
Number selected: 1
Minimum item status: Hittable

Associated commands:

Description:

Nodes selects Link and/or Node items that are connected to the selected Node item. This command ignores unconnected overlying topology.

To select Link/Node items connected to a Node item:

Select the Node item whose connections you wish to see.
Select the Nodes button or Select Connected... from the Map Window menu.
The Select Adjacent dialog will be displayed:

Select Links

Check the tickbox if connected Link items are to be selected.

Select Nodes

Check the tickbox if connected Node items are to be selected.

Number of steps

Enter either:

a specific number of connected Link and/or Node items (as selected in the above tickboxes) if the default "no limit" value is not applicable.

or

an expression, i.e. a "cost" expression.

specific number - If you enter 1 adjacent step, then only the immediately adjacent Link and/or Node items will be selected. If you input 2, then Link and/or Node items within two levels of adjacency will be selected, etc. If "(no limit)" is input, then all connected Link and/or Node items from the selected Node item are selected.

expression - If you enter a "cost" expression then the topological algorithm used will start halfway along the first connected Link items of the selected Node item. This "cost" expression could be a length so that all Link and/or Node items within a given distance (along the connect Link items) will be selected. Alternatively the "cost" expression could be a period of time so that all connected Link and/or Node items which can be reached within a certain time will be selected. This second option is often called an Isochrone.

Click OK.

Top of page AComNodeAdjacent

Send comments on this topic.

Click to return to www.cadcorp.com