phyllotaxis_flower.py 文件源码

def __init__(self, scene):
        self.n, self.m = 40, 30
        self.r0, self.r1, self.r2 = 10, 2, 2
        self.h0, self.h1 = 10, 3
        self.frames = scene.frame_end - scene.frame_start + 1

        # Calculate and compensate for angle offset for infinite animation
        self.offset = (self.frames * goldenAngle) % TAU
        if self.offset > pi: self.offset -= TAU

        # Create object
        mesh = bpy.data.meshes.new('PhyllotaxisFlower')
        self.obj = bpy.data.objects.new('PhyllotaxisFlower', mesh)

        # Create mesh
        bm = self.geometry()
        bm.to_mesh(mesh)
        mesh.update()
        bm.free()

        # Link object to scene
        scene.objects.link(self.obj)
        scene.update()

        # Append new frame change handler to redraw geometry
        # for each frame change
        bpy.app.handlers.frame_change_pre.append(self.__frameChangeHandler)