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{ EXPORT_FORMAT.PDE  

 

 This problem demonstrates a few variations on the use of the

FORMAT modifier in data export.

 

}  

 

Title 'Test FORMATTED export'  

 

Variables  

 u(1.0)  

 

Equations  

 U:  dxx(u) + dyy(u) = -4  

 

Boundaries  

region 1  

  start(0.5,1)  

  value(u)=0                 { the cold outer boundary }  

  line to (2.5,1) to (2.5,2) to (0.5,2) to close  

 

  start(1,1.2)  

  natural(u) = 0  

  line to (1,1.8) to (2,1.8)  

  line to (1.52,1.52) to (1,1.52) to (1,1.48) to (1.52,1.48)  

        to (2,1.2) to close  

 

Monitors  

contour(u)  

 

Plots  

 

{ An ELEVATION plot prints a tag-delimited data list to the file "PTABLE.TXT":}  

elevation(u) from (1.5,1) to (1.5,2) export format "#y#b#1" file="ptable.txt"  

 

{ A CONTOUR plot prints a tab-delimited table of values in the default

  file "export_format.p02": }  

contour(u^2) export format "#x#b#y#b#1"  

 

{ A VECTOR plot prints a table of vectors delimited by commas and parentheses

       in the file "VECTOR.TXT": }  

vector(-dx(u),-dy(u)) zoom(1.9,1.7,0.2,0.2) export format "(#x,#y)=(#1,#2)"  

      file "vectors.txt"  

 

{ A TABLE output without graphics writes a 10x10 table of FIXED POINT gridding

       statements suitable for inclusion in another PDE descriptor

       (in the default file "export_format_01.tbl"): }  

table(u) format "fixed point (#x,#y) point load(u)=(#1-u)" points=10  

 

{ A TABLE output without graphics writes a 12x10 table of gaussian source

       statements suitable for inclusion in another PDE descriptor

       (in the default file "export_format_02.tbl"): }  

table(u) format "+a*exp(-((x-#x)/c)^2-((y-#y)/c)^2)*(#1-u)" points=(12,10)  

 

End