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-rw-r--r--src/ee/__init__.py144
-rw-r--r--src/ee/ltspice.py138
-rw-r--r--src/ee/tools/read_ltspice_raw.py4
3 files changed, 143 insertions, 143 deletions
diff --git a/src/ee/__init__.py b/src/ee/__init__.py
index 8a128f6..93c73f7 100644
--- a/src/ee/__init__.py
+++ b/src/ee/__init__.py
@@ -1,13 +1,13 @@
-import math
-import numpy as np
import re
from functools import total_ordering
+
+import math
+
from ee.formatting import eng_str
__all__ = [
"EeException",
"EeVal",
- "read_ltspice_raw"
]
@@ -17,7 +17,6 @@ class EeException(Exception):
@total_ordering
class EeVal(object):
- from decimal import Decimal
units = ['F',
'Ohm', '\u2126', # Ohm symbol
'H']
@@ -104,140 +103,3 @@ class EeVal(object):
def __float__(self):
return self._value * math.pow(10, self._exp)
-
-class LtSpiceRaw(object):
- def __init__(self, variables, values_first, values_rest):
- self.variables = variables
- self.values_first = values_first
- self.values_rest = values_rest
-
- def get_values(self, variable):
- return self.values[variable.idx]
-
- def get_variable(self, idx=None, expression=None):
- if idx is not None:
- return self.variables[idx]
- if expression is not None:
- v = [v for v in self.variables if v.expression == expression]
- if len(v) != 1:
- raise Exception('Unknown variable: ' + str(v))
- return v[0]
- raise Exception('idx or expression must be given')
-
- def to_pandas(self):
- import pandas
- data = []
- for (i, v) in enumerate(self.values_first):
- data.append(pandas.Series(v, dtype='float64'))
-
- data = {}
- for (i, v) in enumerate(self.values_first):
- data[self.variables[i].expression] = v
-
- return pandas.DataFrame(data=data)
-
-
-class LtSpiceVariable(object):
- def __init__(self, idx, expression, kind):
- self.idx = idx
- self.expression = expression
- self.kind = kind
-
-
-class LtSpiceReader(object):
- def __init__(self, f):
- self.f = f
- self.mode = 'header'
- self.headers = {}
- self.variables = []
- self.values = []
-
- def read_header(self, line):
- sep = line.find(':')
- key = line[0:sep]
- value = line[sep + 1:].strip()
-
- # print("key='{}', value='{}'".format(key, str(value)))
-
- if key == 'Binary':
- self.set_binary_mode()
- elif key == 'Variables':
- self.no_variables = int(self.headers['No. Variables'])
- self.mode = 'variables'
- else:
- self.headers[key] = value
-
- def read_variable(self, line):
- parts = line.split('\t')
- idx = int(parts[1])
- expression = parts[2]
- kind = parts[3]
- self.variables.append(LtSpiceVariable(idx, expression, kind))
-
- if len(self.variables) == self.no_variables:
- self.mode = 'header'
-
- def set_binary_mode(self):
- self.mode = 'binary'
-
- def read_binary(self):
- pos = self.f.tell()
- no_points = int(self.headers['No. Points'])
- no_variables = int(self.headers['No. Variables'])
-
- # print("no_points={}, no_variables={}".format(no_points, no_variables))
-
- if True:
- self.values = np.zeros((no_variables, no_points), dtype='float32')
-
- for p in range(no_points):
- self.values[0][p] = np.fromfile(self.f, count=1, dtype='float64')
- row = np.fromfile(self.f, count=no_variables - 1, dtype='float32');
- for v in range(0, len(row)):
- self.values[v + 1][p] = row[v]
- else:
- self.values = np.zeros((no_points, no_variables), dtype='float64')
-
- for p in range(no_points):
- self.values[p][0] = np.fromfile(self.f, count=1, dtype='float64')
- row = np.fromfile(self.f, count=no_variables - 1, dtype='float32');
- for v in range(0, len(row)):
- self.values[p][v + 1] = row[v]
-
- def read(self):
- while True:
- line = self.f.readline();
-
- if len(line) == 0:
- break
-
- self.f.read(1) # The data is utf16 encoded so read the extra null byte
-
- # if this wasn't the last line .readline() includes the newline
- if line[-1] == '\n' or line[-1] == 0x0a:
- line = line[:-1]
-
- # print("len(line)={}, line={}".format(len(line), str(line)))
- line = line.decode(encoding="utf-16")
-
- if self.mode == 'header':
- self.read_header(line)
- elif self.mode == 'variables':
- self.read_variable(line)
-
- # The binary data can't be read with readline()
- if self.mode == 'binary':
- # self.f.read()
- self.read_binary()
- break
-
- if len(self.variables) == 0:
- raise Exception("Something didn't quite work when parsing file, no variables found")
-
- return LtSpiceRaw(self.variables, self.values, [])
-
-
-def read_ltspice_raw(filename):
- with open(filename, mode="rb") as f:
- r = LtSpiceReader(f)
- return r.read()
diff --git a/src/ee/ltspice.py b/src/ee/ltspice.py
new file mode 100644
index 0000000..3e47bf0
--- /dev/null
+++ b/src/ee/ltspice.py
@@ -0,0 +1,138 @@
+import numpy as np
+
+class LtSpiceRaw(object):
+ def __init__(self, variables, values_first, values_rest):
+ self.variables = variables
+ self.values_first = values_first
+ self.values_rest = values_rest
+
+ def get_values(self, variable):
+ return self.values[variable.idx]
+
+ def get_variable(self, idx=None, expression=None):
+ if idx is not None:
+ return self.variables[idx]
+ if expression is not None:
+ v = [v for v in self.variables if v.expression == expression]
+ if len(v) != 1:
+ raise Exception('Unknown variable: ' + str(v))
+ return v[0]
+ raise Exception('idx or expression must be given')
+
+ def to_pandas(self):
+ import pandas
+ data = []
+ for (i, v) in enumerate(self.values_first):
+ data.append(pandas.Series(v, dtype='float64'))
+
+ data = {}
+ for (i, v) in enumerate(self.values_first):
+ data[self.variables[i].expression] = v
+
+ return pandas.DataFrame(data=data)
+
+
+class LtSpiceVariable(object):
+ def __init__(self, idx, expression, kind):
+ self.idx = idx
+ self.expression = expression
+ self.kind = kind
+
+
+class LtSpiceReader(object):
+ def __init__(self, f):
+ self.f = f
+ self.mode = 'header'
+ self.headers = {}
+ self.variables = []
+ self.values = []
+
+ def read_header(self, line):
+ sep = line.find(':')
+ key = line[0:sep]
+ value = line[sep + 1:].strip()
+
+ # print("key='{}', value='{}'".format(key, str(value)))
+
+ if key == 'Binary':
+ self.set_binary_mode()
+ elif key == 'Variables':
+ self.no_variables = int(self.headers['No. Variables'])
+ self.mode = 'variables'
+ else:
+ self.headers[key] = value
+
+ def read_variable(self, line):
+ parts = line.split('\t')
+ idx = int(parts[1])
+ expression = parts[2]
+ kind = parts[3]
+ self.variables.append(LtSpiceVariable(idx, expression, kind))
+
+ if len(self.variables) == self.no_variables:
+ self.mode = 'header'
+
+ def set_binary_mode(self):
+ self.mode = 'binary'
+
+ def read_binary(self):
+ pos = self.f.tell()
+ no_points = int(self.headers['No. Points'])
+ no_variables = int(self.headers['No. Variables'])
+
+ # print("no_points={}, no_variables={}".format(no_points, no_variables))
+
+ if True:
+ self.values = np.zeros((no_variables, no_points), dtype='float32')
+
+ for p in range(no_points):
+ self.values[0][p] = np.fromfile(self.f, count=1, dtype='float64')
+ row = np.fromfile(self.f, count=no_variables - 1, dtype='float32');
+ for v in range(0, len(row)):
+ self.values[v + 1][p] = row[v]
+ else:
+ self.values = np.zeros((no_points, no_variables), dtype='float64')
+
+ for p in range(no_points):
+ self.values[p][0] = np.fromfile(self.f, count=1, dtype='float64')
+ row = np.fromfile(self.f, count=no_variables - 1, dtype='float32');
+ for v in range(0, len(row)):
+ self.values[p][v + 1] = row[v]
+
+ def read(self):
+ while True:
+ line = self.f.readline();
+
+ if len(line) == 0:
+ break
+
+ self.f.read(1) # The data is utf16 encoded so read the extra null byte
+
+ # if this wasn't the last line .readline() includes the newline
+ if line[-1] == '\n' or line[-1] == 0x0a:
+ line = line[:-1]
+
+ # print("len(line)={}, line={}".format(len(line), str(line)))
+ line = line.decode(encoding="utf-16")
+
+ if self.mode == 'header':
+ self.read_header(line)
+ elif self.mode == 'variables':
+ self.read_variable(line)
+
+ # The binary data can't be read with readline()
+ if self.mode == 'binary':
+ # self.f.read()
+ self.read_binary()
+ break
+
+ if len(self.variables) == 0:
+ raise Exception("Something didn't quite work when parsing file, no variables found")
+
+ return LtSpiceRaw(self.variables, self.values, [])
+
+
+def read_ltspice_raw(filename):
+ with open(filename, mode="rb") as f:
+ r = LtSpiceReader(f)
+ return r.read()
diff --git a/src/ee/tools/read_ltspice_raw.py b/src/ee/tools/read_ltspice_raw.py
index f04abb0..c5cd71b 100644
--- a/src/ee/tools/read_ltspice_raw.py
+++ b/src/ee/tools/read_ltspice_raw.py
@@ -1,7 +1,7 @@
-import ee
+import ee.ltspice
import sys
-raw = ee.read_ltspice_raw(sys.argv[1])
+raw = ee.ltspice.read_ltspice_raw(sys.argv[1])
# print("Variables:")
# for i, v in enumerate(raw.variables):
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-23 04:37:07 +0000