initial commit

refac/Plotter.py

@@ -0,0 +1,84 @@
+from __future__ import division
+import serial
+
+class Plotter:
+
+    def __init__(self,boundaries=None):
+        self.boundaries=boundaries
+        self.p0incenter = False
+        if not boundaries:
+            s=self.getoutput(b'OW;')
+            print(s)
+            if not s:
+                self.ser=None
+            else:
+                self.boundaries = tuple(int(x) for x in "".join(s).split(","))
+
+    def getoutput(self,outstr):
+        try:
+            self.ser = serial.Serial('/dev/ttyUSB0',timeout=15)
+            print ('try to get Status')
+            if not self.ser:
+                print ('Plotter not available')
+                return None
+            self.ser.write(outstr)
+            print ('device busy')
+            s = []
+            while True:
+                x = self.ser.read()
+
+                if x == b"\x0d" or not x:
+                    break
+                s.append(x)
+            return b''.join(s).decode()
+        except OSError:
+            return None
+    @property
+    def xmin(self):
+        return self.boundaries[0]
+
+    @property
+    def ymin(self):
+        return self.boundaries[1]
+
+    @property
+    def xmax(self):
+        return self.boundaries[2]
+
+    @property
+    def ymax(self):
+        return self.boundaries[3]
+
+    @property
+    def center(self):
+        return (self.xmin + self.xmax)/2, (self.ymin + self.ymax)/2
+
+    def write(self,programm):
+         self.ser.write(str(programm).encode())
+
+    @property
+    def winsize(self):
+        return self.xmax-self.xmin , self.ymax - self.ymin
+
+    def oob(self, prog):
+        return (prog.xmax > self.xmax or prog.xmin < self.xmin or prog.ymin < self.ymin or prog.ymax > self.ymax)
+
+
+
+    def plot(self,prog):
+        if self.ready  and  (not self.oob(prog)) :
+            self.write(prog)
+
+        if self.oob(prog):
+            print ('programm out of bound')
+        if not self.ready:
+            print ('device not ready')
+
+
+    def centralize(self,prog):
+        return prog-prog.center \
+               if self.p0incenter else \
+                prog-(prog.xmin,prog.ymin)
+    @property
+    def ready(self):
+        return bool(self.getoutput('OS;'))