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    Connectivity between Two Points

    Introduction

    Connectivity between Two Points is used to find nodes or edges that are connected to the specified nodes, or check whether the specified nodes are connected, on a network. When performing connectivity analyses, we do not need to consider the impedance of the network.

    Basic Steps

    1. Open the network layer in the current map window.
    2. You need to set the parameters of network analysis environment before performing the analysis. Click Spatial Analysis > Facility Network Analysis > Environment to open the Environment. In this window, you can set weight field, node/edge ID, traffic rules, turn table, etc. For more information, see Environment Settings Window.
    3. Click Spatial Analysis > Facility Network Analysis > Network Analysis > Connectivity between Two Points to create an instance of optimal path analysis. For the introduction of instance window, please see Instance Manger Window.
    4. Click in the current layer to add a start point. Two ways for adding: One is to click Add by Mouse on the toolbar of the Instance Manager window; the other one is to click Import on the right-click menu of Event Point. For specific information, please refer to Import Station.
      You can add one start point and one end point. After adding them, they will be added in the Instance Management window automatically.
    5. You can add end node and barrier nodes following the way of adding start node.
    6. After adding a start node, an end node, and barrier nodes, click Run in the Facility Network Analysis group on the Spatial Analysis tab or click the Run button in Instance Management window to execute the connected element analysis.
    7. When finished execution, the analysis result will display in the Output Window, telling you whether the two nodes are connected or disconnected.

    Note

    • The event point can be exported as point dataset for the future similar analysis.
    • The event point can be put on the nodes and edges or within the vicinity of the snap tolerance.
    • Click Move Station by Mouse , select and drag the event point to modify its position.

    Adjacency Analysis

    Connectivity Analysis