Update backup.app.py

backup.app.py

@@ -8,78 +8,78 @@ import pymesh
 from solid import *
 from solid.utils import *
 import os
+import trimesh
 
-# 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')
+    plt.figure()
+    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)
+    # Create a box mesh
+    box_a = trimesh.creation.box(extents=[1, 1, 1])
+    box_a.export('pymesh_example_01.stl')
 
-    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)
+    # Create another box mesh and perform a boolean operation
+    box_b = trimesh.creation.box(extents=[0.2, 0.2, 1], translate=[0.4, 0.4, 0])
+    box_c = box_a.difference(box_b)
+    box_c.export('pymesh_example_02.stl')
+
+    st.write("3D meshes saved to files.")
 
-# 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')
+    scad_render_to_file(col, '/tmp/solidpython_example_02.scad')
+    st.write("Solid models saved to files.")
+
+st.title("Exploring 3D Graphics and Geometry with Python")
 
-# Streamlit UI
-st.title("3D Graphics and Geometry with Streamlit")
+st.markdown("""
+    This application demonstrates basic concepts of 3D graphics in Python. 
+    You can visualize 3D objects, create convex hulls, generate and save 3D meshes, 
+    and explore solid modeling. Each section below offers a different aspect of 3D graphics.
+""")
 
-if st.button('Plot Vertices and Meshes', key='02'):
-    # Add vertices and faces data here
+st.subheader("1. Plot Vertices and Meshes")
+if st.button('Show 3D Vertices and Meshes'):
     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)
+    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)
 
-if st.button('Plot Convex Hull', key='03'):
+st.subheader("2. Plot Convex Hull")
+if st.button('Show Convex Hull'):
     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'):
+st.subheader("3. Create and Save 3D Meshes")
+if st.button('Generate 3D Meshes'):
     create_3d_meshes()
-    st.write("3D meshes saved to files.")
 
-if st.button('Create and Save Solid Models', key='05'):
+st.subheader("4. Create and Save Solid Models")
+if st.button('Generate Solid Models'):
     create_solid_models()
-    st.write("Solid models saved to files.")
+
+st.markdown("""
+Developed using Python libraries like matplotlib, scipy, pymesh, and solid,
+this application serves as an introductory tool for understanding and visualizing
+3D concepts in Python.
+""")
+