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# Scripting How-To: Creating a Schematic Wire in Microwave Office Using AWR Scripting

### Summary

There are a few tips that make wiring schematic elements together easier:

1. Use the coordinates of the schematic element nodes as the wire connection points to ensure connections.

2. Wire segments need to be orthogonal, trying to add non-orthogonal wires will fail.

3. Wires added to a schematic cannot form a connectivity loop. Attempting to add wires that create a loop will fail.

Let's look at an example that adds some elements to a schematic and connects them with wires.

### Code Snippets

``` ' Code Module
Sub Main
Dim schem As Schematic
Dim elem1 As Element
Dim elem2 As Element

' Add a couple of schematic elements.
Set elem1 = schem.Elements.Add("MLIN", 0, 0)
Set elem2 = schem.Elements.Add("MLIN", 2000, -2000, 90)

' Get connection point coordinates from element nodes
x1 = elem1.Nodes(2).x
y1 = elem1.Nodes(2).y

x2 = elem2.Nodes(1).x
y2 = elem2.Nodes(1).y

' Add two wire segments (must be orthogonal)
End Sub```

In this code we start by adding a schematic named "MySchematic" to the project:

`  Set schem = Project.Schematics.Add("MySchematic")`
`    `

Next we add two schematic elements to the new schematic:

```     ' Add a couple of schematic elements.
Set elem1 = schem.Elements.Add("MLIN", 0, 0)
Set elem2 = schem.Elements.Add("MLIN", 2000, -2000, 90)```
`     `

The first element has node 1 located at x = 0, y = 0, with no rotation angle, the second one has node 1 located at x = 2000, y = -2000 and is rotated by an angle of 90 degrees. Next we use the element references to get the coordinates for the nodes we want to connect.

```  ' Get connection point coordinates from element nodes
x1 = elem1.Nodes(2).x
y1 = elem1.Nodes(2).y

x2 = elem2.Nodes(1).x
y2 = elem2.Nodes(1).y```

So here we want to connect node 2 of the first element to node 1 of the second element. When adding the wires we will add them in two segments, because one segment between to two coordinates would be non-orthogonal and the system would not accept the add wire request. Adding the wire segments is done through the wires collection on the schematic.

``` ' Add two wire segments (must be orthogonal)