Mathematical Expressions
Template files can also contain mathematical expressions.
*nodes()
*format()
*string("node,")
*field(integer,id,10)
*string(",")
*field(real,[x+100.0],10)
*string(",")
*field(real,y,10)
*string(",")
*field(real,z,10)
*end()
*output()
100.0 is added to the x-coordinate of the nodes and is sent to the formatter, where it is written to the file. The square brackets, [], around the formula tell the parser that the enclosed text is a formula and not to interpret the asterisk, *, as a new command.
Addition | + |
Subtraction | - |
Multiplication | * |
Division | / |
Modulus | % |