backup.app.py

import streamlit as st
import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
from mpl_toolkits.mplot3d.art3d import Poly3DCollection
from scipy import spatial
import pymesh
from solid import *
from solid.utils import *
import os

# Function to plot vertices and meshes
def plot_vertices_and_mesh(vertices, faces):
    fig = plt.figure()
    ax = fig.add_subplot(111, projection='3d')

    # Plot vertices
    ax.scatter(vertices[:, 0], vertices[:, 1], vertices[:, 2])

    # Plot faces
    for face in faces:
        vertices_of_face = vertices[face]
        poly = Poly3DCollection([vertices_of_face])
        ax.add_collection3d(poly)

    st.pyplot(fig)

# Rest of the functions remain the same

# Streamlit UI
st.title("3D Graphics and Geometry with Streamlit")

if st.button('Plot Vertices and Meshes', key='01'):
    vertices = np.array([[-3, -3, 0], [+3, -3, 0], [+3, +3, 0], [-3, +3, 0], [+0, +0, +3]])
    faces = np.array([[4, 1, 0], [4, 2, 1], [3, 4, 0], [3, 4, 2], [3, 2, 1], [3, 1, 0]], dtype=np.int32)
    plot_vertices_and_mesh(vertices, faces)

# Function to plot convex hull
def plot_convex_hull(points):
    hull = spatial.ConvexHull(points)
    plt.plot(points[:,0], points[:,1], 'o')
    for simplex in hull.simplices:
        plt.plot(points[simplex, 0], points[simplex, 1], 'k-')
    st.pyplot(plt)

# Function to create and save 3D meshes
def create_3d_meshes():
    box_a = pymesh.generate_box_mesh([0,0,0], [1,1,1])
    pymesh.save_mesh("pymesh_example_01.stl", box_a, ascii=False)

    box_b = pymesh.generate_box_mesh([0.4,0.4,0], [0.6,0.6,1])
    box_c = pymesh.boolean(box_a, box_b, operation='difference', engine="igl")
    pymesh.save_mesh("pymesh_example_02.stl", box_c, ascii=False)

# Function to create and save solid models
def create_solid_models():
    d = difference()(cube(size=10, center=True), sphere(r=6.5, segments=300))
    scad_render_to_file(d, '/tmp/solidpython_example_01.scad')

    c = circle(r=1)
    t = translate([2, 0, 0])(c)
    e = linear_extrude(height=10, center=True, convexity=10, twist=-500, slices=500)(t)
    col = color('lightgreen')(e)
    scad_render_to_file(col, 'solidpython_example_02.scad')

# Streamlit UI
st.title("3D Graphics and Geometry with Streamlit")

if st.button('Plot Vertices and Meshes', key='02'):
    # Add vertices and faces data here
    vertices = np.array([[-3, -3, 0], [+3, -3, 0], [+3, +3, 0], [-3, +3, 0], [+0, +0, +3]])
    faces = np.array([[4, 1,0], [4, 2, 1], [3, 4, 0], [3, 4, 2], [3, 2, 1], [3, 1, 0]], dtype=int32)
    plot_vertices_and_mesh(vertices, faces)

if st.button('Plot Convex Hull', key='03'):
    points = np.array([[0, 0], [-2, 0], [-2, 2], [0, 1.5], [2, 2], [2, 0]])
    plot_convex_hull(points)

if st.button('Create and Save 3D Meshes', key='04'):
    create_3d_meshes()
    st.write("3D meshes saved to files.")

if st.button('Create and Save Solid Models', key='05'):
    create_solid_models()
    st.write("Solid models saved to files.")