OperateMetada

!Metadata_Operate ( xmipp version 3.0)

Purpose

This program performs operations over columns in a metaData file

Usage

$ metadata_operate  

Parameters

• ``
• `` by default input metadata is overwrited
• `` mathematical operation to be performed

Note: metadataFile Format is descibedMetadata some valid operations are +,*,-,/,'acos', 'asin ', 'atan', 'atan2', 'ceil', 'cos', 'cosh', 'degrees', 'e' , 'exp', 'fabs', 'floor', 'fmod', 'frexp', 'hidden_value', 'hypot', 'ldexp', 'log', 'log10', 'modf', 'pi', 'pow', 'radians', 'sin', 'sinh', 'sqrt', 'tan' and 'tanh'. And extensive list is available at http://docs.python.org/library/math

Examples and Notes

Convert angleRot from degrees to radians

xmipp_operate_metadata  -i a.doc -o b.doc -e  "angleRot=sin(angleRot*pi/180.)"

Create or overwite anglePsi with a function that use as arguments angleRot and angleTilt

  
xmipp_operate_metadata  -i a.doc -o b.doc -e  "angletilt=sin(angleRot)*angleTilt"

Replace file extension "xpm" by "spi"

  
   operate_metadata  -i a.doc -o b.doc -e  "image=image.replace('xmp','spi')"

USER's COMMENTS

--Main.RobertoMarabini - 10 Mar 2008