kopia lustrzana https://github.com/villares/sketch-a-day
101 wiersze
2.8 KiB
Python
101 wiersze
2.8 KiB
Python
# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day
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"""
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First trial of the JCSG library prepared for Processing by George Profenza https://stackoverflow.com/users/89766/george-profenza
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"""
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# You'll need to copy these libs into your Processing libraries folder:
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add_library('VVecMath')
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add_library('jcsg')
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from random import choice
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dim = (2, 3, 4, 5, 6)
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def setup():
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global pshape_result
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size(600, 500, P3D)
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noStroke()
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csg_result = calculate_stuff()
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pshape_result = CSGToPShape(csg_result, 45)
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def draw():
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background(0)
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lights()
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translate(width * 0.5, height * 0.5, -height/2)
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rotateY(map(mouseX, 0, width, -PI, PI))
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rotateX(map(mouseY, 0, height, PI, -PI))
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shape(pshape_result)
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def calculate_stuff():
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solids = []
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for i, s in enumerate(range(5)):
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w, h, d = choice(dim), choice(dim), choice(dim)
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cube = Cube(w, h, d).toCSG()
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if w % 2:
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hole = Cube(w-1, h, d-1).toCSG()
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else:
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hole = Cube(w, h-1, d-1).toCSG()
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solid = cube.difference(hole)
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solids.append(csgTranslate(solid, i * 3, 0, 0))
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union = solids[0].union(solids[1:])
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# translate merged geometry back by half to pivot around centre
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return csgTranslate(union, -6, 0, 0)
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def csgTranslate(csg, x, y, z):
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return csg.transformed(Transform.unity().translate(x, y, z))
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def csgRot(csg, x, y, z):
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return csg.transformed(Transform.unity().rot(x, y, z))
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def CSGToPShape(mesh, scale):
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"""
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Convert a CSG mesh to a Processing PShape
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"""
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result = createShape(GROUP) # allocate a PShape group
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# for each polygon (Note: these can have 3,4 or more vertices)
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for p in mesh.getPolygons():
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# make a child PShape
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polyShape = createShape()
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# begin setting vertices to it
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polyShape.beginShape()
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# for each vertex in the polygon
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for v in p.vertices:
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# add each (scaled) polygon vertex
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polyShape.vertex(v.pos.getX() * scale,
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v.pos.getY() * scale,
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v.pos.getZ() * scale)
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# finish this polygon
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polyShape.endShape()
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# append the child PShape to the parent
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result.addChild(polyShape)
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return result
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def keyPressed():
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if key == "p":
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saveFrame("###.png")
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if key == " ":
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global pshape_result
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csg_result = calculate_stuff()
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pshape_result = CSGToPShape(csg_result, 45)
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def settings():
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from os import path
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global SKETCH_NAME
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SKETCH_NAME = path.basename(sketchPath())
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OUTPUT = ".png"
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println(
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"""
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[{0}](https://github.com/villares/sketch-a-day/tree/master/{2}/{0}) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
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""".format(SKETCH_NAME, OUTPUT, year())
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)
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