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# Re-importing required libraries to recreate the flowchart after environment reset
from matplotlib import pyplot as plt
from matplotlib.patches import FancyBboxPatch, Polygon

# Function to draw shapes for different flowchart elements
def draw_element(ax, text, x, y, width=3, height=1, shape="oval", facecolor="#90EE90"):
    if shape == "oval":  # Terminator (Start/End)
        ellipse = FancyBboxPatch((x, y), width, height, boxstyle="round,pad=0.3", edgecolor="black", facecolor=facecolor)
        ax.add_patch(ellipse)
    elif shape == "rectangle":  # Process
        rect = FancyBboxPatch((x, y), width, height, boxstyle="square,pad=0.3", edgecolor="black", facecolor=facecolor)
        ax.add_patch(rect)
    elif shape == "diamond":  # Decision
        diamond = Polygon([
            (x + width / 2, y), (x + width, y + height / 2),
            (x + width / 2, y + height), (x, y + height / 2)
        ], closed=True, edgecolor="black", facecolor=facecolor)
        ax.add_patch(diamond)
    ax.text(x + width / 2, y + height / 2, text, ha="center", va="center", fontsize=10, wrap=True)

# Define flowchart elements with correct shapes
flow_elements = [
    {"text": "Begin", "x": 4, "y": 11, "shape": "oval"},
    {"text": "Characterization of c-Si Layers\n• Surface texture\n• ARC materials\n• Refractive index", "x": 4, "y": 9, "shape": "rectangle"},
    {"text": "Set Simulation Parameters\n• AM1.5G solar spectrum\n• c-Si material reference", "x": 4, "y": 7, "shape": "rectangle"},
    {"text": "Run Simulations\n• Light absorption\n• Reflection analysis", "x": 4, "y": 5, "shape": "rectangle"},
    {"text": "Decision:\nAre results valid?", "x": 4, "y": 3, "shape": "diamond"},
    {"text": "Calculate J_max\n• J_max Enhancement", "x": 4, "y": 1, "shape": "rectangle"},
    {"text": "End", "x": 4, "y": -1, "shape": "oval"}
]

# Create figure and axis for flowchart
fig, ax = plt.subplots(figsize=(8, 12))
ax.axis("off")

# Draw elements
for elem in flow_elements:
    draw_element(ax, elem["text"], elem["x"] - 1.5, elem["y"] - 0.5, shape=elem["shape"])

# Draw arrows connecting elements
for i in range(len(flow_elements) - 1):
    x_start = flow_elements[i]["x"]
    y_start = flow_elements[i]["y"] - 0.5
    x_end = flow_elements[i + 1]["x"]
    y_end = flow_elements[i + 1]["y"] + 0.5
    ax.annotate("", xy=(x_end, y_end), xytext=(x_start, y_start), arrowprops=dict(arrowstyle="->", lw=1.5))

# Save corrected flowchart
final_flowchart_path = "/mnt/data/Corrected_FYP_Flowchart.png"
plt.savefig(final_flowchart_path, dpi=300, bbox_inches="tight")
plt.show()