How to Clip Layer with Polygon on Mapinfo Professional

Hello everyone, welcome to another Mapinfo Tutorial for beginners. In this article, we are going to learn how to clip a MapInfo layer with a polygon. In some cases, you may need to cut or clip a large vector dataset or table into a smaller one. There are some reasons why we need to clip a MapInfo table:

1. Large dataset takes longer time to load
2. You want to focus on a smaller area only

For example, I have a large contour file that covers the entire projects I am currently working on. It took a long time to load this file, so I need to clip it to focus on a certain area only. MapInfo with Discover has a feature called “Clip to Polygon“. This tool will help us to crop or clip a table using polygon.

So here is the illustration of what we are going to do:

Original table

You can see that I have a contour file and a red box polygon. I want to clip this contour table using the red polygon. And this is the final result:

Now we have a contour file but only inside the polygon. To achieve this, please follow these steps below.

Clip Layer to Polygon on MapInfo Professional

1. Open MapInfo Professional
2. Open the table that you want to clip
3. Open or create a new polygon to clip against
4. Select the polygon (you must select the polygon) and go to Discover >> Object Editing >> Clip to Polygon
5. Enable the “Operate on copy of data”, add suffix to be appended to the table and select the table to clip. Click OK
6. Specify the directory to save the clip result

Thanks for reading, I hope you enjoy it and see you next time.