---
title: "ZWCAD"
slug: "zwcad"
updated: 2025-08-12T08:36:38Z
published: 2025-08-12T08:36:38Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.metromap.com.au/llms.txt
> Use this file to discover all available pages before exploring further.

# ZWCAD

## Loading Georeferenced Images

If you have used [**Clip It!**](https://docs.metromap.com.au/docs/2d-interface-tools#clipit) tool or [**Download Image**](https://docs.metromap.com.au/docs/2d-interface-tools#download) tool from [MetroMap](https://web.metromap.com.au/) website and you want to project this image onto ZWCAD, the following steps will help you through.

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### Before you start

You can import JPG/JGW* file pairs downloaded from the MetroMap into ZWCAD® 2020 with the following instructions. ZWCAD® 2020 will not support changing the map projection of the image, so ensure that your image is in the projection you want before importing it. **Choose accordance map projection system especially when you have multiple georeferenced images load into ZWCAD**

> Please note that our MetroMap system provide various projection systems. For more introduction about Projection Systems, please refer to [Clip It!](https://docs.metromap.com.au/docs/2d-interface-tools#clipit). Screen images shown below in these instructions are from ZWCAD® 2020.

* You can download a georeferenced image from MetroMap, which the geo file will be saved as **JGW** format. But ZWCAD will only be able to read the file if you change its format to TFW.

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1. Change the extension of the **JGW** file to **TFW** file you plan to use.

> For example, if your **JGW** file named `abc.jgw`, then change it's name to `abc.tfw` ![29](https://cdn.document360.io/64eb4fa4-1b3d-47a1-871b-be0277fc940e/Images/Documentation/2%289%29.jpg)

1. Click the **Insert** menu and select **Attach**.  

![19](https://cdn.document360.io/64eb4fa4-1b3d-47a1-871b-be0277fc940e/Images/Documentation/1%289%29.jpg)
2. In the **Image** window that appears, check **Using Positioning file**, click **Find** button to select the TFW file corresponding to your image, then click **OK**.  

![38](https://cdn.document360.io/64eb4fa4-1b3d-47a1-871b-be0277fc940e/Images/Documentation/3%288%29.jpg)

4.Your image should now appear in the **Model** tab. If not, select **Top** view option in the drop down menu located in the **View** tab.

> If you have extra images to import, please repeat **Step 4 - 5**. If your images are adjasent or overlaps to each other, they will be jointed together. ![46](https://cdn.document360.io/64eb4fa4-1b3d-47a1-871b-be0277fc940e/Images/Documentation/5%286%29.jpg)

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