2

2024/sketch_2024_03_02/sketch_2024_03_02.py

@@ -0,0 +1,117 @@
+from functools import lru_cache
+import itertools
+
+from shapely import (
+    LineString,
+    GeometryCollection,
+    Polygon,
+    MultiPolygon,
+    Point,
+    MultiPoint,
+    )
+
+import trimesh
+import py5
+
+elements = []
+vers = []
+plate = Polygon(
+    [(20, 20), (480, 20), (480, 480), (20, 480)]
+    )
+
+SPACING = 100
+
+grid = list(itertools.product(range(SPACING, 500, SPACING), repeat=2))
+grid += [(x + SPACING / 2, y + SPACING / 2) for x, y in grid if x < 400 and y < 400]
+    
+
+def setup():
+    py5.size(500, 500, py5.P3D)
+    
+def draw():
+    global mesh
+    py5.background(200)
+    if not py5.is_mouse_pressed or py5.is_key_pressed:
+        py5.rotate_x(py5.radians(15))
+    if elements:
+        gc = GeometryCollection(elements)
+        mp = gc.buffer(4)
+        plate_with_holes = plate.difference(mp)
+        if not isinstance(plate_with_holes, MultiPolygon):
+            plate_with_holes = MultiPolygon([plate_with_holes])
+        mesh = trimesh.util.concatenate([
+            trimesh.creation.extrude_polygon(p, 2)
+            for p in plate_with_holes.geoms]) 
+        py5.fill(255, 128)
+        py5.no_stroke()
+        draw_obj(mesh)
+        py5.no_fill()
+        py5.stroke(0)
+        draw_edges(mesh)
+        
+    if len(vers) > 1:
+        draw_obj(LineString(vers).buffer(4))
+
+
+def draw_edges(m):
+    vs = m.vertices
+    bs = m.facets_boundary
+    for facet in bs:
+        with py5.begin_shape(py5.LINES):
+            py5.vertices(vs[v] for v in itertools.chain(*facet))
+
+def mouse_pressed():
+    gp = closer_grid(py5.mouse_x, py5.mouse_y)
+    print(gp)
+    vers.append(gp)
+
+def closer_grid(mx, my):
+    min_pos = None
+    md = 1000
+    for x, y in grid:
+        d = py5.dist(x, y, mx, my)
+        #print(x, y, mx, my, md, d)
+        if d < md:
+            md = d
+            min_pos = x, y
+    return min_pos
+
+def mouse_dragged():
+    gp = closer_grid(py5.mouse_x, py5.mouse_y)
+    if vers[-1] != gp:
+        vers.append(gp)
+        
+def mouse_released():
+    if len(vers) > 1:
+        elements.append(LineString(vers))
+    vers.clear()
+
+
+def draw_obj(obj):
+    ps = convert_obj(obj)
+    ps.disable_style()
+    py5.shape(ps, 0, 0)
+
+@lru_cache(maxsize=10)
+def convert_obj(obj):
+    return py5.convert_shape(obj)
+
+def key_pressed():
+    if py5.key == 'p':
+        py5.save_frame(__file__[:-3] + '.png')
+    elif py5.key == ' ':
+        elements.clear()
+    elif py5.key == 'd' and elements:
+        elements.pop()
+    elif py5.key == 's':
+        mesh.export('teste.stl')
+        print('stl salvo')
+    elif py5.key == 'R':
+        for x, y in grid:
+            elements.append(LineString([(x, y), (x, y + 30)]))
+    elif py5.key == 'r':
+        elements.append(MultiPoint([(x, y) for x, y in grid]))
+
+
+py5.run_sketch(block=False)
+

docs/README.md

@@ -33,6 +33,16 @@ Here are listed some of the tools I have been using:
 
 2024 \| [<b>2023</b>](2023.md) \| [<b>2022</b>](2022.md) \| [<b>2021</b>](2021.md) \| [<b>2020</b>](2020.md) \| [<b>2019</b>](2019.md) \| [<b>2018</b>](2018.md)
 
+---
+
+### sketch_2024_03_02
+
+![sketch_2024_03_02](https://raw.githubusercontent.com/villares/sketch-a-day/main/2024/sketch_2024_03_02/sketch_2024_03_02.png)
+
+[sketch_2024_03_02](https://github.com/villares/sketch-a-day/tree/main/2024/sketch_2024_03_02) [[py5](https://py5coding.org/)]
+
+
+
 ---
 
 ### sketch_2024_03_01