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plot.py
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plot.py
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import matplotlib.pyplot as plt
from matplotlib.widgets import Cursor
import datetime as DT
import pickle
import csv
# --------------------------------
# PLOT CELL
# --------------------------------
class PlotCell():
# INIT com data em Tuple(Data,Dates)
def __init__(self, data, overlay=False, color='-'):
self.data = data[0]
self.dates = data[1]
self.overlay=overlay
self.color = color
class PlotCellIndex(PlotCell):
def __init__(self, index_name,overlay=False, color='-'):
self.data_dir = "./data"
data = self.load_file(index_name)
PlotCell.__init__(self, data, overlay, color)
def truncate(self, startdate):
start_date = DT.datetime.strptime(startdate, "%Y%m%d")
for x in range(0,len( self.dates)-1):
if (self.dates[x] > start_date):
break
self.data = self.data[x:]
self.dates = self.dates[x:]
def load_file(self, index_name):
try:
filehandler = open(self.data_dir + "/" + index_name + ".idx", "rb")
data = pickle.load( filehandler )
filehandler.close()
return data
except:
data = ([],[])
try:
csv_file = self.data_dir + "/" + index_name + ".csv"
with open(csv_file, 'rb') as csvfile:
dialect = csv.Sniffer().sniff(csvfile.read(1024))
csvfile.seek(0)
data_lines = csv.reader(csvfile, dialect)
for row in data_lines:
data[0].append(float(row[0]))
try:
data[1].append(DT.datetime.strptime(row[1], "%Y-%m-%d"))
except:
try:
data[1].append(DT.datetime.strptime(row[1], "%Y/%m/%d"))
except: data[1].append(DT.datetime.strptime(row[1], "%Y%m%d"))
return data
except Exception as e:
print "NOP", e
return data
# --------------------------------
# PLOT
# --------------------------------
class Plot():
full_rect_x = 0.05
full_rect_y = 0.1
full_rect_width = 0.95
full_rect_height = 0.9
def __init__(self, plotcell, firstRatio=1.7):
plt.rc('axes', grid=True)
plt.rc('grid', color='0.75', linestyle='-', linewidth=0.5)
self.figure1 = plt.figure()
self.plotcell_lst = []
self.plotRects = []
self.firstRatio = firstRatio
self.plotcell_lst.append(plotcell)
rect1 = [self.full_rect_x,self.full_rect_y , self.full_rect_width, self.full_rect_height]
self.plotRects.append(rect1)
def addSimple(self,plotcell):
self.plotcell_lst.append(plotcell)
if not plotcell.overlay:
self.plotRects.append([self.full_rect_x,0,self.full_rect_width,0])
n = len(self.plotRects)
i = 0
height = (self.full_rect_height)/n
highHeight = height*self.firstRatio
lowHeight = (self.full_rect_height-highHeight)/(n-1)
for rect in reversed(self.plotRects):
if (i == len(self.plotRects)-1):
rect[1] = (lowHeight*i)+self.full_rect_y
rect[3] = highHeight
else:
rect[1] = (lowHeight*i)+self.full_rect_y
rect[3] = lowHeight
i = i + 1
def plot(self):
ax_list = []
i = 0
for p_cell in self.plotcell_lst:
p_data = p_cell.data
p_dates = p_cell.dates
p_color = p_cell.color
if (i == 0): ax_list.append(self.figure1.add_axes(self.plotRects[i]) )
else:
if not p_cell.overlay:
ax_list.append(self.figure1.add_axes(self.plotRects[i], sharex=ax_list[0]) )
else: i = i - 1
ax_list[i].plot(p_dates,p_data,p_color)
i = i + 1
for label in ax_list[len(ax_list)-1].get_xticklabels():
label.set_rotation(30)
label.set_horizontalalignment('right')
for x in ax_list: Cursor(x , useblit=True, color='red', linewidth=1 )
plt.Artist()
plt.show()