def __init__(self, buffersize = 128):
self.so = InvokeSharedObject()
self.engine = self.so.engOpen(None)
self.buffer = Buffer(buffersize)
self.resultBuffer = False
self.bufferSize = buffersize
self.bufferingActive = True
self.so.engOutputBuffer(self.engine, self.buffer)
self.so.engSetVisible(self.engine,True)
self.print_commands = False
class EngMatAccess:
def __init__(self, buffersize = 128):
self.so = InvokeSharedObject()
self.engine = self.so.engOpen(None)
self.buffer = Buffer(buffersize)
self.resultBuffer = False
self.bufferSize = buffersize
self.bufferingActive = True
self.so.engOutputBuffer(self.engine, self.buffer)
self.so.engSetVisible(self.engine,True)
self.print_commands = False
def close(self):
self.so.engClose(self.engine)
self.engine = None
self.buffer = None
def evaluate(self, expression, *args):
return self.evaluateInternal(expression, *args)
def evaluateInternal(self, expression, *args):
self.resetLastError()
command = expression.format(*args)
if self.print_commands:
print "command tx: " + command
ret = self.so.engEvalString(self.engine, command)
err = self.getLastError()
if err is not None and err.__len__() >0:
print "Wrong command: " + expression.format(*args)
print err
return 1
return ret
def resetLastError(self):
self.so.engEvalString(self.engine, "lasterror('reset')")
def getLastError(self):
self.so.engEvalString(self.engine, "err = lasterror; err = err.message")
return self.getString("err")
def evaluateAsString(self, expression, *args):
if self.so.engEvalString(self.engine, expression.format(*args)) == 0:
return self.buffer.buffer.value
else:
return None
def getMatrix(self, name):
aa = self.so.engGetVariable(self.engine, name)
if aa is None:
return None
else:
return Matrix(aa,self.so)
def getString(self, name):
ptr = self.so.engGetVariable(self.engine,name)
if ptr is None:
return None
length = self.so.mxGetN(ptr)
if length == 0:
return None
ptr = self.so.mxGetData(ptr)
str = string_at(ptr, length*2)
#print len(str)
str = str.decode("utf-16")
#print len(str)
#print str
return str
def getValueType(self, name):
ptr = self.so.engGetVariable(self.engine, name)
return self.so.mxGetClassID(ptr)
def getElementCount(self, name):
ptr = self.so.engGetVariable(self.engine, name)
return self.so.mxGetN(ptr) * self.so.mxGetM(ptr)