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matth-love merged 3 commits into from
Feb 27, 2026
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README formatting #11

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README formatting
matth-love Feb 27, 2026
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README formatting
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README formatting
matth-love Feb 27, 2026
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10 changes: 6 additions & 4 deletions README.md
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Expand Up @@ -20,26 +20,28 @@ Transformez relies on the NGS Horizontal Time-Dependent Positioning (HTDP) softw
2. Place `htdp.exe` in a directory that is in your system's `PATH` (e.g., `C:\Windows\System32` or a custom scripts folder).

**For Linux / macOS:**

You will need a Fortran compiler (like `gfortran`) to compile the source code.

```bash
# 1. Download the Fortran source code
wget [https://geodesy.noaa.gov/TOOLS/Htdp/HTDP-download.zip](https://geodesy.noaa.gov/TOOLS/Htdp/HTDP-download.zip)
wget https://geodesy.noaa.gov/TOOLS/Htdp/HTDP-download.zip
unzip HTDP-download.zip

# 2. Compile it
gfortran -o htdp htdp.f

# 3. Move it to your PATH
sudo mv htdp /usr/local/bin/
Install Transformez
```

### Install Transformez
Once HTDP is accessible in your terminal, install the python package:

```bash
pip install transformez
```

*Requires [htdp](https://geodesy.noaa.gov/TOOLS/Htdp/Htdp.shtml) to be in your system PATH for frame transformations.*

## Usage

**Generate a vertical shift grid for anywhere on Earth.**
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