**CIGAL Reference Manual, Chapter 3 (Functions): measure**
===== Measure -- Calculate length and area of a vector list =====
**usage: result = measure(vlist,[scalefactor])**

MEASURE calculates both the length and area defined by a list
of graphics vectors, VLIST.  If VLIST does not define a closed
region the area value returned is 0.  If SCALEFACTOR is specified,
it is used to convert both output values from pixel units to other
units.  MEASURE always returns 2 output values: length first and
then area.

**See Also:**\\
[[jvs:cigal:manual:chapter3:area|AREA(3)]], 
[[jvs:cigal:manual:chapter4:calfact|CALFACT(4)]], 
[[jvs:cigal:manual:chapter3:length|LENGTH(3)]], 
[[jvs:cigal:manual:chapter2:sketch|SKETCH(2)]], 
[[jvs:cigal:manual:chapter1:vectors|VECTORS(1)]]

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