import numpy as np
from utils.path import path

from intersect import Mesh2D
from utils.objparser import Mesh
from scipy.misc import pilutil

from PIL import ImageDraw

OBJ_FILE = path(r'D:\loco-dev\maps\UMIC\umic.obj')
LOCATION_FILE = path(r'D:\loco-dev\maps\UMIC\experiment\locations.txt')
locations = []
for l in LOCATION_FILE.lines():
    if l.startswith('#'):
        continue
    locid, x, y, z = l.split()
    locations.append((locid, float(x), float(y), float(z)))

mesh = Mesh()
mesh.parseObjFile(OBJ_FILE)

mesh_xlim = (-1, 58)
mesh_ylim = (-1, 18)
pixel_per_meter = 16
m2d = Mesh2D(mesh, mesh_xlim, mesh_ylim, pixel_per_meter)

Z = [('eg', -2.0), ('og1', 1.0), ('og2', 4.5)]
for name, z_cut in Z:
    print 'building %s...' % name
    f = path(r'N:\loco\dirk\lws\static\measure_%s.png' % name)
    
    to_be_combined = []
    for objname in m2d.objnames:
        print 'object: %s' % objname
        img = m2d.cut(objname, z_cut)
        to_be_combined.append(pilutil.fromimage(img))


    all_objects = np.add.reduce(np.array(to_be_combined))
    #~ combined_object_image

    print 'cache file to %s' % f.abspath()
    
    
    img = pilutil.toimage(all_objects)
    
    img = img.convert('RGB')
    draw = ImageDraw.Draw(img)
    
    for locid, x, y, z in locations:
        if abs(z - z_cut) < 2:
            _x, _y = m2d.meter2pixel(x, y)
            draw.text((_x, _y), locid, fill='#CC1111')
            draw.point((_x, _y), fill='#00FF00')
        
    img.save(f)