Creating Top-Level Nodes with Script-Transactions

Top-level nodes are nodes which have a global scope and their relationships are mapped in the Graph. The syntax for directly creating top-level nodes within script transactions is as follows. You should never use this syntax to create a top-level node inside a ByFunction technique.

transaction 1 modelChange 'Add baseCS'
{
    node User.Objects.baseCS Bentley.GC.NodeTypes.CoordinateSystem
    {
        Technique                 = 'AtModelOrigin';
        GraphLocation             = <auto> {40.0, 40.0};
    }
}

transaction 2 modelChange 'Change baseCS'
{
    node User.Objects.baseCS Bentley.GC.NodeTypes.CoordinateSystem
    {
        GraphLocation             = {25.833, 78.333, 174.0, 0.0};
    }
}

transaction 3 modelChange 'Change baseCS'
{
    node User.Objects.baseCS Bentley.GC.NodeTypes.CoordinateSystem
    {
        Technique                 = 'AtModelOrigin';
        DGNModelName              = '3D Metric Design';
        GraphLocation             = {29.167, 81.667, 174.0, 0.0};
    }
}

transaction 4 script 'Create top-level Point'
{
    		Point pt = new Point("scriptPoint");
    		pt.ByCartesianCoordinates(baseCS, 1.2, 3.4, 0.0);
}

Note: Whenever a new top-level node is created, you don't need to store its value into a local variable. Instead, you can simply use its name directly:

transaction 1 modelChange 'Add baseCS'
{
    node User.Objects.baseCS Bentley.GC.NodeTypes.CoordinateSystem
    {
        Technique                 = 'AtModelOrigin';
        GraphLocation             = <auto> {40.0, 40.0};
    }
}

transaction 2 modelChange 'Change baseCS'
{
    node User.Objects.baseCS Bentley.GC.NodeTypes.CoordinateSystem
    {
        GraphLocation             = {25.833, 78.333, 174.0, 0.0};
    }
}

transaction 3 modelChange 'Change baseCS'
{
    node User.Objects.baseCS Bentley.GC.NodeTypes.CoordinateSystem
    {
        Technique                 = 'AtModelOrigin';
        DGNModelName              = '3D Metric Design';
        GraphLocation             = {29.167, 81.667, 174.0, 0.0};
    }
}

transaction 4 script 'Create top-level Point'
{
    		new Point("scriptPoint");
    		scriptPoint.ByCartesianCoordinates(baseCS, 1.2, 3.4, 0.0);
}