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node_HilbertImage.py
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node_HilbertImage.py
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import bpy
from node_s import *
from util import *
from types import *
class HilbertImageNode(Node, SverchCustomTreeNode):
''' Hilbert Image '''
bl_idname = 'HilbertImageNode'
bl_label = 'HilbertImage'
bl_icon = 'OUTLINER_OB_EMPTY'
def images(self, context):
return [tuple(3 * [im.name]) for im in bpy.data.images]
name_image = EnumProperty(items=images, name='images')
level_ = bpy.props.IntProperty(name = 'level', description='Level', default=2, min=1, max=20, options={'ANIMATABLE'}, update=updateNode)
size_ = bpy.props.FloatProperty(name = 'size', description='Size', default=1.0, min=0.1, options={'ANIMATABLE'}, update=updateNode)
#name_image = bpy.props.StringProperty(name='image_name', description='image name', default='', update=updateNode)
sensitivity_ = bpy.props.FloatProperty(name = 'sensitivity', description='sensitivity', default=1, min=0.1, max=1.0, options={'ANIMATABLE'}, update=updateNode)
R = bpy.props.FloatProperty(name='R', description='R', default=0.30, min=0, max=1, options={'ANIMATABLE'}, update=updateNode)
G = bpy.props.FloatProperty(name='G', description='G', default=0.59, min=0, max=1, options={'ANIMATABLE'}, update=updateNode)
B = bpy.props.FloatProperty(name='B', description='B', default=0.11, min=0, max=1, options={'ANIMATABLE'}, update=updateNode)
def init(self, context):
self.inputs.new('StringsSocket', "Level", "Level")
self.inputs.new('StringsSocket', "Size", "Size")
self.inputs.new('StringsSocket', "Sensitivity", "Sensitivity")
self.outputs.new('VerticesSocket', "Vertices", "Vertices")
self.outputs.new('StringsSocket', "Edges", "Edges")
def draw_buttons(self, context, layout):
layout.prop(self, "level_", text="Level")
layout.prop(self, "size_", text="Size")
layout.prop(self, "name_image", text="image name")
layout.prop(self, "sensitivity_", text="Sensitivity")
row = layout.row(align=True)
row.scale_x=10.0
row.prop(self, "R", text="R")
row.prop(self, "G", text="G")
row.prop(self, "B", text="B")
def update(self):
# inputs
if len(self.outputs['Edges'].links)>0 or len(self.outputs['Vertices'].links)>0:
if len(self.inputs['Level'].links)>0:
if not self.inputs['Level'].node.socket_value_update:
self.inputs['Level'].node.update()
Integer = int(eval(self.inputs['Level'].links[0].from_socket.StringsProperty)[0][0])
else:
Integer = self.level_
if len(self.inputs['Size'].links)>0:
if not self.inputs['Size'].node.socket_value_update:
self.inputs['Size'].node.update()
Step = eval(self.inputs['Size'].links[0].from_socket.StringsProperty)[0][0]
else:
Step = self.size_
if len(self.inputs['Sensitivity'].links)>0:
if not self.inputs['Sensitivity'].node.socket_value_update:
self.inputs['Sensitivity'].node.update()
Sensitivity = eval(self.inputs['Sensitivity'].links[0].from_socket.StringsProperty)[0][0]
else:
Sensitivity = self.sensitivity_
# outputs
if len(self.outputs['Vertices'].links)>0 and self.name_image:
if 'Vertices' in self.outputs and len(self.outputs['Vertices'].links)>0:
if not self.outputs['Vertices'].node.socket_value_update:
self.outputs['Vertices'].node.update()
img = bpy.data.images[self.name_image]
pixels = list(img.pixels)
verts = self.hilbert(0.0, 0.0, 1.0, 0.0, 0.0, 1.0, Integer, img, pixels, Sensitivity)
for iv, v in enumerate(verts):
for ip,p in enumerate(v):
verts[iv][ip]*=Step
self.outputs['Vertices'].VerticesProperty = str([verts])
if 'Edges' in self.outputs and len(self.outputs['Edges'].links)>0:
if not self.outputs['Edges'].node.socket_value_update:
self.outputs['Edges'].node.update()
listEdg = []
r = len(verts)-1
for i in range(r):
listEdg.append((i, i+1))
edg = list(listEdg)
self.outputs['Edges'].StringsProperty = str([edg])
else:
self.outputs['Vertices'].VerticesProperty = str([[]])
self.outputs['Edges'].StringsProperty = str([[]])
def hilbert(self, x0, y0, xi, xj, yi, yj, n, img, pixels, Sensitivity):
w = img.size[0]-1
h = img.size[1]-1
px=x0+(xi+yi)/2
py=y0+(xj+yj)/2
xy=int(int(px*w)+int(py*h)*(w+1))*4
p = (pixels[xy]*self.R+pixels[xy+1]*self.G+pixels[xy+2]*self.B)#*pixels[xy+3]
if p>0:
n=n-p**(1/Sensitivity)
out = []
if n<=0:
X = x0 + (xi + yi)/2
Y = y0 + (xj + yj)/2
out.append(X)
out.append(Y)
out.append(0)
return [out]
else:
out.extend(self.hilbert(x0, y0, yi/2, yj/2, xi/2, xj/2, n - 1, img, pixels, Sensitivity))
out.extend(self.hilbert(x0 + xi/2, y0 + xj/2, xi/2, xj/2, yi/2, yj/2, n - 1, img, pixels, Sensitivity))
out.extend(self.hilbert(x0 + xi/2 + yi/2, y0 + xj/2 + yj/2, xi/2, xj/2, yi/2, yj/2, n - 1, img, pixels, Sensitivity))
out.extend(self.hilbert(x0 + xi/2 + yi, y0 + xj/2 + yj, -yi/2,-yj/2,-xi/2,-xj/2, n - 1, img, pixels, Sensitivity))
return out
def fullList(self, l, count):
d = count - len(l)
if d > 0:
l.extend([l[-1] for a in range(d)])
return
def update_socket(self, context):
self.update()
def register():
bpy.utils.register_class(HilbertImageNode)
def unregister():
bpy.utils.unregister_class(HilbertImageNode)
if __name__ == "__main__":
register()