Building SSC File
Feature Description
Based on the network dataset, according to the set related attribute select fields, build *.ssc navigation model file. The model data stores the environmental information required for transportation analysis, providing a data foundation for subsequent transportation analysis.
Parameter description
| Parameter Name | Default Value | Parameter Interpretation | Parameter Type |
|---|---|---|---|
| network dataset | Select the data source and dataset where the network data for building the SSC model is located. | DatasetVector | |
| arc identification | SmEdgeID | The field that uniquely identifies each arc segment in the network dataset. You can choose a field from the line dataset in the network dataset as the marking field. By default, SmEdgeID is used as the edge ID field. | String |
| node id | SmNodeID | The field that uniquely identifies each node in the network dataset. You can choose a field from the point dataset in the network dataset as the marking field. By default, SmNodeID is used as the node ID field. | String |
| fnode id | SmFNode | The field that identifies the start node in the network dataset. You can choose a field from the line dataset in the network dataset as the marking field. By default, SmFNode is used as the from node ID. | String |
| tnode id | SmTNode | The field that identifies the end node in the network dataset. You can choose a field from the line dataset in the network dataset as the marking field. By default, SmTNode is used as the end node ID. | String |
| enable rules | false | Whether to enable rules, i.e., set whether network arc segments are one-way (including forward value and backward value) or forbid to pass, etc. Default is disabled. If enabled, subsequent parameters need to be set. | Boolean |
| traffic rule field （Optional） |
Traffic rule field. Takes effect when rules are enabled. | String | |
| forward value （Optional） |
Add the attribute values corresponding to the forward value. Multiple fields can be added. Takes effect when rules are enabled. | String[] | |
| backward value （Optional） |
Add the attribute values corresponding to the backward value. Multiple fields can be added. Takes effect when rules are enabled. | String[] | |
| prohibited value （Optional） |
Add the attribute values corresponding to the prohibited value. Multiple fields can be added. Takes effect when rules are enabled. | String[] | |
| two way rule values （Optional） |
Add the attribute values corresponding to the two-way rule values. Multiple fields can be added. Takes effect when rules are enabled. | String[] | |
| arc segment name | SmEdgeID | Set the road name field, which can be used to generate route guides. | String |
| arc segment weight | SmLength | Used to change the forward/backward weights of the arc segment and set whether the arc segment is a barrier edge. | String |
| road speed （Optional） |
Set the road speed field. This parameter is not mandatory. Road speed is an integer field, where 1 represents the highest road speed, 150 km/h; 2 represents 130 km/h; 3 represents 100 km/h; 4 represents 90 km/h; 5 represents 70 km/h; 6 represents 50 km/h; 7 represents 30 km/h; other values are uniformly 10 km/h. | String | |
| road grade | Set the road grade field. This is a mandatory field. The field value range is 1-3, where 3 represents the highest road grade, such as highways; 1 represents the lowest road grade, such as rural roads. | String | |
| enable | false | Whether to enable the prohibited turning table. Default is disabled. If enabled, subsequent parameters need to be set. | Boolean |
| turn to the dataset （Optional） |
Set a tabular dataset as the turning data and specify its data source. Takes effect when enabled. | DatasetVector | |
| turning node identification （Optional） |
The field used to uniquely identify prohibited turning points. Takes effect when enabled. | String | |
| identification of turning start arc segment （Optional） |
A turn at a node always involves two arc segments, i.e., a start edge and an end edge. In the selected turning table, choose a field as the start arc field to indicate from which arc segment the prohibited turn starts. Takes effect when enabled. | String | |
| identification of turning end arc segment （Optional） |
In the selected turning table, choose a field as the end arc field to indicate to which arc segment the turn is prohibited. Takes effect when enabled. | String | |
| file path | The export directory and name of the result file, with the file suffix .ssc | String |