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PIVMat 3.02

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PIVMat 3.02

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27 Apr 2006 (Updated )

A PIV Post-processing and data analysis toolbox

changefieldf (PIVMat Toolbox)
changefieldf (PIVMat Toolbox)
PIVMat Function Reference<< Prev | Next >> 
changefieldf
Change the values of variables in a PIVMat structure

Description
CV = changefieldf(V, 'var1', value1, 'var2', value2, ...) returns a 
PIVMat structure array CV identical to the input structure V, in which 
the variables 'var1', 'var2' etc. receive the new specified values 
value1, value2 etc. Variables in a PIVMat structures are labels and 
units of x and y axis, values of x and y coordinates, etc. See loadvec 
for a complete list of available variables. 
 
V = changefieldf(V, 'unitx', 'm') is equivalent to V.unitx = 'm'. 
However, if V is a structure array of vector/scalar fields, changefieldf 
applies the changes to each element V(i). 
 
For instance, PIVMat structures have their axis labels named 'x' 
and 'y' by default. In order to change these labels to 'X' and 'Z', 
enter the following: 
 
   v = changefieldf(v,'namex','X','namey','Z'); 
 
You can also specify non-string arguments for the value1, value2... 
For instance, in order to invert the values of the x axis, 
 
   v = changefieldf(v, 'x', v(1).x(end:-1:1)); 
 
See Also
shiftf, extractf, resizef, operf. 
 
Published output in the Help browser 
   showdemo changefieldf 

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