arc-rs

Represents a thin Python wrapper for implementing Geoprocessing Tools using Rust. A Geoprocessing Tool performs specific tasks on geospatial data. The tools can be integrated in complex geospatial workflows. These workflows are usually designed by Geospatial Analysts in a "Model First" environment.

A custom Geoprocessing Tool can be implemented using Python. But, there is a need for implementing high sophistical geospatial analyses using solid rock runtime environments, libraries and frameworks. As an engineer I do not want to miss the capabilities of

• Efficient code generation (Compiler Buddy)
• Fail fast and often (Compiler says: "No!")
• Pay only for what you use (#YAGNI)

Nowadays, the best option seems to be Rust.

Features

• Create custom Geoprocessing Tools using Rust

pub trait GpTool {

    fn label(&self) -> &str;

    fn description(&self) -> &str;

    fn parameters(&self) -> Vec<GpParameter>;

    fn execute(&self, py: Python, parameters: Vec<PyParameterValue>, messages: PyGpMessages) -> PyResult<()>;
}

• Execute any registered Geoprocessing Tool using Rust

let pyresult = gp::tools::execute_tool(py, "arcpy", "ListFeatureClasses", ())?;
let results_as_text = pyresult.as_vecstr();
for result_as_text in results_as_text {
    messages.add_message(&result_as_text)?;
}

Instructions

Building the source by using cargo build release. There is a sample Python toolbox using the provided custom Geoprocessing Tools implemented in Rust.

Requirements

• Rust v1.44.1
• pyo3 v0.12.3

Runtime requirements

• ArcGIS Pro v2.6 or later on Windows 10

Resources

• Creating Geoprocessing Tools with Python

• What is ModelBuilder?

• Geospatial Intelligence @ Medium