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Improves and corrects documentation.

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This commit is contained in:
Robert Smallshire
2015-05-07 15:57:11 +02:00
parent b042133f55
commit 1ba97f75ce
1 changed files with 11 additions and 4 deletions
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segpy/datatypes.py
+11 -4
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@@ -1,4 +1,7 @@
# A mapping from data sampel format codes to SEG Y types.
"""Mappings between the coding systems used for sample types.
"""
# A mapping from data sample format codes to SEG Y types.
DATA_SAMPLE_FORMAT_TO_SEG_Y_TYPE = {
1: 'ibm',
2: 'int32',
@@ -6,7 +9,8 @@ DATA_SAMPLE_FORMAT_TO_SEG_Y_TYPE = {
5: 'float32',
8: 'int8'}
# A mapping from SEG Y data types to format characters used by the struct module
# A mapping from SEG Y data types to format characters used by the
# Python Standard Library struct module
SEG_Y_TYPE_TO_CTYPE = {
'int32': 'i',
'uint32': 'I',
@@ -18,8 +22,9 @@ SEG_Y_TYPE_TO_CTYPE = {
'ibm': 'ibm'}
# Human readable descriptions of the sample types.
SEG_Y_TYPE_DESCRIPTION = {
'ibm': 'IBM float',
'ibm': 'IBM 32 bit float',
'int32': '32 bit signed integer',
'uint32': '32 bit unsigned integer',
'int16': '16 bit signed integer',
@@ -28,7 +33,7 @@ SEG_Y_TYPE_DESCRIPTION = {
'int8': '8 bit signed integer (byte)',
'uint8': '8 bit unsigned integer (byte)'}
# Sizes of various ctypes in bytes
CTYPE_TO_SIZE = dict(
i=4,
I=4,
@@ -41,4 +46,6 @@ CTYPE_TO_SIZE = dict(
def size_in_bytes(ctype):
"""The size in bytes of a ctype.
"""
return CTYPE_TO_SIZE[ctype]