vector comparability

[Mary Jo Nath]

Use "set arrscl" before each display.  From the documentation:

set arrscl size <magnitude>  - Specifies arrow length scaling.
   Size is the length of the arrow in plotting units (inches on the virtual
   page).  A typical value would be 0.5 to 1.0. Magnitude is the vector
   magnitude that will produce an arrow of the specified size.  Other arrow
   lengths will be scaled appropriately.  If magnitude is not given, all the
   arrows will be the same length.   Reset by clear or display.


On Friday 26 August 2005 14:19, Sebastian Engelstaedter wrote:
>>  Hello GrADS users,
>>
>>  I am making plots of wind vectors for different month using
>>  'set gxout vector'
>>  'd u;v'
>>  However, the physical vector length representing wind speed changes from
>>  plot to plot. For example, in one plot the length of the example vector
>>  (showing up blow the plot) represents 7 m/s whereas in another plot it
>>  represents 9 m/s. Is there a way to force GrADS to use always the same
>>  vector length for the same magnitude of wind speed to make the plots
>>  better comparable.
>>
>>  Thanks for any hints,
>>  Sebastian