tiny-2d-engine

tiny_2d_engine

A Tk.Canevas widget augmented to allow 2D acquisitions:

• load an image
• Add a calibration for the image to set up your own world coordinates
• Add Points or Lines on the image
• Save your project. You will find the word coordinates of all your objects in the projects, ready for an other usage.

It can be used as a standaone application with:

> tiny_2d_engine gui

Or as a Tkinter widget like here:

from tkinter import ttk
from tiny_2d_engine.main import Acquisition2D

def add_viewer_2d(otroot):
    """Injection of a viewer 2D to opentea"""
    title = "2D dialog"
    view2d_fr = ttk.Frame(otroot.notebook, name=title)
    otroot.notebook.add(view2d_fr, text=title)
    viewer = Viewer2D(
        view2d_fr,
        otroot,
    )
    return viewer


class Viewer2D(Acquisition2D):
    def __init__(self, master, otroot):
        super().__init__(master, standalone=True)
        self.pack( side="top")
        self.otroot = otroot

    def get(self):
        print("get data")
        return self.acq_canvas.as_dict()

    def set(self, data: dict):
        print("set data")
        self.acq_canvas.load_dict(data)

Disclaimer

This package is very young and uncomplete.

Known issues are:

• A spurious contextual menu pops up sometimes
• Changing image can fail
• Moving the calibration around is quickly perturbating the acquisitions (You are not supposed to do that!)

But it works somehow.