---
title: "(USA) Introduction Chapter 1 - Layout System"
canonical: "https://help.innovyze.com/space/infodrainage2020v2/16416792/(USA)%20Introduction%20Chapter%201%20-%20Layout%20System"
format: markdown
---
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## Import CAD outlines for Inflow Areas

1. Begin by opening the **ID_US_Introduction_Project_Ch1.iddx** file.
2. Catchment extents have already been delineated within CAD so we can Import these into InfoDrainage as Inflow Areas.
  1. Right-click the Inflows layer and select **Import from CAD.**  
> Macro (inline-media-image)
  2. Click **Select** and then locate **Inflow Areas_Developed.dwg** and then click **Open**.> Macro (inline-media-image)
3. Click **Next** twice in the Load CAD Wizard.> Macro (inline-media-image)
4. Click the **Comm** Inflow Area Template on the **Select Template** screen and then select **Finish**. This Template represents commercial land use characteristics, which we can further modify later in the tutorial.  
> Macro (inline-media-image)
5. Double-click or right-click and select **Edit** on **Comm (1)** in order to see the Inflow Area characteristics, which are applied based on the outline extents for that element and the details saved under the Comm Template. Click **OK** to close the dialog.> Macro (inline-media-image)


## Import Pipe Network from GIS

1. Now that the Inflow Areas are set, right-click the **Connection layer** and select **Import from GIS**, or **select Connections **within the **From GIS** group on the **Import ribbon**.  
 > Macro (inline-media-image)

> Macro (inline-media-image)


1. On the **Import** dialog, use the **Select** button to select the **Pipe Network.shp** file, and then click **Next**.> Macro (inline-media-image)
2. The GIS file will be shown on the second Import step, as the units are set to feet by default, select **Next** to continue.> Macro (inline-media-image)
3. This step allows you to select which Connection Template will be used if any missing attribute data exists, in this case select** Standard Pipe** for the Template. Click **Next**.> Macro (inline-media-image)
4. Similarly, select** Standard MH** for the default **Junction Template** to be used as the default Junction type when the imported connections join. Select **Next** to continue.> Macro (inline-media-image)
5. We can now map pertinent variables from the GIS file attribute list to the associated input types within InfoDrainage. These can individually be dragged from one side to another or a mapped list can be loaded (if previously saved) by using **Load**, then select **GIS pipenetwork mapping.xppmx** and select **Open**.> Macro (inline-media-image)

> Macro (inline-media-image)
6. Once these fields are mapped, select **Import**, then click **OK** on the import summary dialog.> Macro (inline-media-image)

> Macro (inline-media-image)
7. The model now contains all Inflow Area catchments and the Pipe Network. You may wish to change the **Display Settings** to make things easier to read. Labels can be turned on and off in the **Layers** tab and **Text Height** and **(Max) Icon Height **on the **Plan** tab.> Macro (inline-media-image)

## Update Characteristics Using TABLES

In addition to importing from several formats, it is easy to make updates to a system using **TABLES.** We will use TABLES to make updates to runoff characteristic info for **Inflow Areas**.

1. Open TABLES by selecting the **Tables** option within the **Build** ribbon or double-click the **Tables** layer within the Tree View.> Macro (inline-media-image)
2. Expand the **Inflow** tree and select the items listed below: **Area**, **Runoff Method**, as well as **Area**, **Pervious Curve Number**, **Percentage Impervious** and **Composite Curve Number**, which are found within the **SCS** branch. This same information can be viewed for individual Inflow **Areas** by editing the given area in the Profile view.> Macro (inline-media-image)
3. We can update the **Percentage Impervious (%)** field for the Inflow Areas shown below to better reflect the proposed parking plan.> Macro (inline-media-image)
4. Once these values are updated, click **OK** to accept the changes and close **TABLES**.