Mapping Toolbox

smoothlong

Remove discontinuities in longitudes

Syntax

• ang = smoothlong(angin)
  ang = smoothlong(angin,units)
  

Description

ang = smoothlong(angin) removes discontinuities in longitude data. The resulting angles may cover more than one revolution.

ang = smoothlong(angin,units) removes

mat = spcread(cols) uses the units defined by the input string units. If omitted, default units of 'degrees' are assumed.

Examples

• long = npi2pi(0:10:720);
  long2 = smoothlong(long);
  figure;hold on
  plot(long,'--'); plot(long2)
  xlabel 'Point Number'; ylabel Longitude
  
  
  

Remarks

This function can remove large jumps in longitude that might otherwise result in spurious data when interpolating with interpm.

See Also

npi2pi	Truncates angles into the -180 deg to 180 deg range
zero22pi	Truncates angles into the 0 deg to 360 deg range
interpm	Interpolates vector data to a specified data separation

sm2deg, sm2km, sm2nm, sm2rad

spcread