image-recognizer/ui/front_page/plots/loss.py

from neural_net.trainer import NeuralNetTrainer
from ui.components.plot_figure import PlotFrame

from abc import ABC

from matplotlib.figure import Figure

from neural_net.neural_net import NeuralNet
from ui.plotters.plotter import Plotter

class LossPlot(PlotFrame):
    def __init__(self, parent, neural_net: NeuralNet, trainer: NeuralNetTrainer):
        super().__init__(parent)
        self.plotter = LossPlotter(self.figure, neural_net, trainer)

class LossPlotter(Plotter, ABC):
    def __init__(self, figure: Figure, neural_net: NeuralNet, trainer: NeuralNetTrainer):
        super().__init__(figure)
        self.neural_net = neural_net
        self.trainer = trainer
        self.axes = figure.add_subplot()

    def reset_plot(self):
        self.axes.clear()
        self.axes.set_title('Loss')
        self.axes.set_ylabel("Loss")
        self.axes.set_xlabel("Epoch")

    def plot(self, data):
        losses = []
        for epoch in self.trainer.epoch_history:
            if epoch.finished:
                losses.append(epoch.loss)

        self.axes.plot(losses, marker='o', label=f"Loss")
        for idx, loss in enumerate(losses):
            self.axes.annotate(f"{loss:.4f}", xy=(idx, loss), rotation=45)

        self.axes.legend()
        self.axes.grid(True)