90 lines
2.4 KiB
Python
Executable File
90 lines
2.4 KiB
Python
Executable File
from __future__ import division
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import pyserial
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class Plotter:
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def __init__(self,boundaries=None):
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self.__boundaries=boundaries
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self.p0incenter = True
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if not boundaries:
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s=self.getoutput('OW;')
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print(s)
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if not s:
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self.ser=None
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else:
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self.__boundaries = tuple(int(x) for x in "".join(s).split(","))
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def getoutput(self,outstr):
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try:
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self.ser = serial.Serial('/dev/ttyUSB0',timeout=15)
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print('try to get Status')
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if not self.ser:
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print('Plotter not available')
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return None
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self.ser.write(outstr)
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print('device busy')
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s = []
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while True:
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x = self.ser.read()
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if x == "\x0d" or not x:
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break
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s.append(x)
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return ''.join(s)
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except OSError:
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return None
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@property
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def xmin(self):
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return self.__boundaries[0]
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@property
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def ymin(self):
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return self.__boundaries[1]
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@property
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def xmax(self):
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return self.__boundaries[2]
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@property
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def ymax(self):
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return self.__boundaries[3]
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@property
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def center(self):
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return (self.xmin + self.xmax)/2, (self.ymin + self.ymax)/2
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def write(self,programm):
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self.ser.write(str(programm))
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@property
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def winsize(self):
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return self.xmax-self.xmin , self.ymax - self.ymin
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def oob(self, prog):
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return (prog.xmax > self.xmax or prog.xmin < self.xmin or prog.ymin < self.ymin or prog.ymax > self.ymax)
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def full(self,prog):
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arg = min(self.winsize[0]/prog.winsize[0],self.winsize[1]/prog.winsize[1])
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#print self.winsize[0]/prog.winsize[0],self.winsize[1]/prog.winsize[1])
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print('Scale Factor', arg)
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return prog*arg
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def plot(self,prog):
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if self.ready and (not self.oob(prog)) :
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self.write(prog)
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if self.oob(prog):
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print('programm out of bound')
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if not self.ready:
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print('device not ready')
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def centralize(self,prog):
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return prog-prog.center \
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if self.p0incenter else \
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prog-(prog.xmin,prog.ymin)
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@property
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def ready(self):
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return bool(self.getoutput('OS;'))
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