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import sys, numpy as np, os, re
from matplotlib import pyplot as plt, rc, rcParams, ticker
import crl
from matplotlib.patches import Polygon
from matplotlib.collections import PatchCollection
class Bounds:
def __init__(self):
self.xmin = 0
self.xmax = 0
self.ymin = 0
self.ymax = 0
def point(self, x, y):
self.xmin = min(self.xmin, x)
self.xmax = max(self.xmax, x)
self.ymin = min(self.ymin, y)
self.ymax = max(self.ymax, y)
def extents(self, margin=0):
dx = (self.xmax - self.xmin) * margin
dy = (self.ymax - self.ymin) * margin
return [self.xmin - dx , self.xmax + dx,
self.ymin - dy, self.ymax + dy]
def set(self, margin=0, ax=plt):
xmin, xmax, ymin, ymax = self.extents(margin)
plt.xlim(xmin, xmax)
plt.ylim(ymin, ymax)
def plot_setup(width=1, color_plot=False):
rcParams["font.family"] = 'serif'
rcParams["font.serif"] = ["C059"]
rcParams["font.size"] = 15
rc("text", usetex=True)
rc("text.latex", preamble=\
"""\\usepackage{polski}""")
rcParams["savefig.dpi"] = 200
rcParams["savefig.bbox"] = "tight"
figwidth = width * 10
if color_plot:
figwidth *= 1.7
figheight = figwidth * 0.75
rcParams['figure.figsize'] = figwidth, figheight
def texformatter_func(x, pos):
return ("%g" % x).replace(".", "{,}")
texformatter = ticker.FuncFormatter(texformatter_func)
def plot_grid(ax=plt, minor=True):
if minor:
ax.minorticks_on()
ax.grid(b=True, which='major', linestyle='-', linewidth=0.75, color=[0.8, 0.8, 0.8])
ax.grid(b=True, which='minor', linestyle='--', linewidth=0.75, color=[0.9, 0.9, 0.9])
if ax is plt:
ax = plt.gca()
ax.xaxis.set_major_formatter(texformatter)
ax.yaxis.set_major_formatter(texformatter)
#ax.xaxis.set_minor_formatter(texformatter)
#ax.yaxis.set_minor_formatter(texformatter)
def plot_longline(x1, y1, x2, y2, fmt, **kwargs):
axes = plt.axis()
plt.plot((x1, x2), (y1, y2), fmt, **kwargs)
plt.xlim([axes[0], axes[1]])
plt.ylim([axes[2], axes[3]])
def plot_sRGB(CS, D65=True):
V = [
crl.sRGB(1, 0, 0),
crl.sRGB(0, 1, 0),
crl.sRGB(0, 0, 1)
]
V.append(V[0])
V = np.array([[*v.to(CS)] for v in V])
plt.plot(V[:, 0], V[:, 1], "k:", label="sRGB")
if D65:
x, y, _ = CS(crl.Illuminants.D65)
plt.plot(x, y, "k^", label="$\\mathrm{D}_{65}$")
plt.legend()
def plot_export():
if len(sys.argv) > 1:
plt.savefig(sys.argv[1])
else:
plt.show()
def plot_colorbar(X, C):
C = np.expand_dims(C, axis=0)
ar = 10
plt.imshow(C, extent=[min(X), max(X), min(X) / ar, max(X) / ar])
plt.gca().axes.get_yaxis().set_visible(False)
def plot_Ra(res, extended=True):
crl.chromaticity_diagram(crl.UVstarNormedD65, locus=False)
bounds = Bounds()
for i in range(14 if extended else 8):
u, v, _ = crl.UVstarNormed.from_UVWstar(res.tcs[i])
u0, v0, _ = crl.UVstarNormed.from_UVWstar(res.tcs_ref[i])
if np.sqrt((u - u0)**2 + (v - v0)**2) > 0.07:
plt.arrow(u0, v0, u - u0, v - v0, width=0.004,
length_includes_head=True, ec=None, fc="k")
plt.plot(u, v, "ko", markersize=5, label="TCS" if not i else None)
plt.scatter(u0, v0, s=50, facecolors="none", edgecolors="k")
bounds.point(u, v)
bounds.point(u0, v0)
plt.plot(0, 0, "kx", label="Punkt bieli")
bounds.point(0, 0)
bounds.set(margin=0.1)
def plot_GAI(points, color="k", pattern="o-", label="Gama", alpha=0.3):
poly = Polygon(points)
col = PatchCollection([poly], fc=color, ec=color, alpha=alpha)
plt.gca().add_collection(col)
points = np.concatenate([points, np.array([points[0, :]])], axis=0)
plt.plot(points[:, 0], points[:, 1], pattern, color=color, markersize=3, label=label)
def prefix(path):
return os.path.join(os.path.dirname(__file__), "../lab/", path)
class Lamp:
def load_ref(path):
data = dict()
with open(path) as fd:
for line in fd:
k, v = line.split("\t")
v = v.replace(",", ".")
match = re.match("CRI R(.*)", k)
if match:
v = v.split(" ")[0]
if match.group(1) == "a":
data["CRI"] = float(v)
else:
if "SCRI" not in data:
data["SCRI"] = [0] * 15
data["SCRI"][int(match.group(1)) - 1] = float(v)
elif k == "CCT":
data["CCT"] = float(v[:-2])
elif k in ["x", "y", "z", "X", "Y", "Z"]:
data[k] = float(v)
else:
data[k] = v
data["XYZ"] = crl.XYZ(data["X"], data["Y"], data["Z"])
data["xyY"] = crl.xyY(data["x"], data["y"], data["Y"])
return data
def __init__(self, lid, Ra_spec, CCT_spec, path):
self.lid = lid
self.Ra_spec = Ra_spec
self.CCT_spec = CCT_spec
data = crl.data.load(prefix(path + "/Surowe.txt"))
self.raw = crl.Spectrum(data[:, 0], data[:, 1])
data = crl.data.load(prefix(path + "/Z korekcją.txt"))
self.spec = crl.Spectrum(data[:, 0], data[:, 1])
self.ref_2deg = Lamp.load_ref(prefix(path + "/Kolor 2deg.txt"))
self.ref_10deg = Lamp.load_ref(prefix(path + "/Kolor 10deg.txt"))
self.CCT, self.dE = crl.cct(self.spec)
self.Ra = crl.cri_Ra(self.spec)
self.GAI, _ = crl.cri_GAI(self.spec)
self.FSCI = crl.cri_FSCI(self.spec)
def load_labdb(key):
return Lamp(key, *labdb[key])
labdb = {
"Ż": ["100", 2700, "2 grudnia/E27/Żarówka"],
"JA27": ["\geq 80", 2700, "2 grudnia/E27/Jarzeniówka 2700"],
"JA65": ["\geq 80", 6500, "2 grudnia/E27/Jarzeniówka 6500"],
"JB27": ["\geq 80", 2700, "2 grudnia/E27/Duża jarzeniówka 2700"],
"LA": ["\geq 80", 3000, "2 grudnia/E27/LED OSSO"],
"LB30": ["80", 3000, "2 grudnia/GU10/LED 3000"],
"LB40": ["80", 4000, "2 grudnia/GU10/LED 4000"],
"LB65": ["80", 6500, "2 grudnia/GU10/LED 6500"],
"LB97": ["97", 4000, "6 grudnia/OSRAM"],
"LC1": ["\geq 72", 4000, "2 grudnia/GU10/Chiński I"],
"LC2": ["\geq 72", 4000, "2 grudnia/GU10/Chiński II"],
"LC3": ["\geq 72", 4000, "2 grudnia/GU10/Chiński III"],
"LC4": ["\geq 72", 4000, "2 grudnia/GU10/Chiński IV"],
"LC5": ["\geq 72", 4000, "2 grudnia/GU10/Chiński V"],
"T28": ["95", 2800, "6 grudnia/L2 2800K CRI95"],
"T30": ["95", 3000, "6 grudnia/L2 3000K CRI95"],
#"T30b": ["95", 3000, "6 grudnia/L2 3000K CRI95 bez soczewki"],
"T32": ["95", 3200, "6 grudnia/B2 3200K CRI95"],
"T40": ["96", 4000, "6 grudnia/B2 4000K CRI96"]
}
class TexWriter():
def __init__(self, path):
self.path = path
def __enter__(self):
self.fd = open(self.path, "w")
return self
def __exit__(self, type, value, traceback):
self.fd.close()
def write(self, text):
self.fd.write(text.replace(".", "{,}"))
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