What is NTv2Poly?

NTv2Poly

NTv2Poly is a handy tool that lets you add polygonal validity scopes into NTv2 binary files. You can do this using just the outlines stored in shape files. Basically, NTv2 files have one or more rectangular coordinate grids set up in their headers. This feature allows you to highlight and embed specific polygon areas, like a state's borders, for example.

How Does NTv2Poly Work?

To make everything work smoothly with NTv2Poly, you'll need to ensure that the polygons in your shape file are in geographic coordinates with decimal notations. It's also super important to check that the reference system of these coordinates matches the source system of your NTv2 file as closely as possible.

The Purpose of NTv2Poly

So, what's the main idea behind this app? Well, it helps you mark all grid meshes that have exopolygonal entries as invalid. This way, you can create the polygonal validity scope using two common methods: either by replacing accuracy values of grid meshes or by swapping out shift values of those meshes.

Accuracy and Precision

You'll be glad to know that when calculating these polygonal validity scopes, NTv2Poly relies on strict formulas with no room for approximations. This means you get precise results every time!

Get Started with NTv2Poly

If you're interested in trying out NTv2Poly, you can download it here. It could be a great addition to your toolkit!

How Download Works

Go to the Softpas website, press the 'Downloads' button, and pick the app you want to download and install—easy and fast!