Range Over Channels in OpenSCAD

Our example demonstrates how to iterate over values received from a channel-like structure. In OpenSCAD, we don’t have built-in channels or concurrency, so we’ll simulate this behavior using a list and a custom function.

// Simulate a channel with a list
queue = ["one", "two"];

// Function to print elements of the list
module print_queue(queue) {
    for (elem = queue) {
        echo(elem);
    }
}

// Call the function to print the queue
print_queue(queue);

In this example, we create a list called queue to simulate a channel. We then define a module print_queue that iterates over each element in the list and prints it using the echo function.

To run this code in OpenSCAD:

1. Open OpenSCAD
2. Copy and paste the code into a new file
3. Save the file with a .scad extension (e.g., range_over_queue.scad)
4. Click on “Design” -> “Compile and Render” or press F6

You should see the following output in the console:

ECHO: "one"
ECHO: "two"

This example demonstrates how to iterate over a list of values in OpenSCAD. While OpenSCAD doesn’t have direct equivalents for channels or concurrency, we can still achieve similar functionality using lists and functions.

Note that in OpenSCAD, we don’t need to explicitly close the list as we would with channels in some other languages. The list is a fixed-size data structure, and all elements are available for iteration as soon as it’s defined.