h = quiverm(lat,lon,deltalat,deltalon)
displays velocity vectorswith components (deltalat,deltalon)
at the geographicpoints (lat,lon)
on displayed map axes. All fourinputs should be in the AngleUnits
of the map axes.The inputs deltalat
and deltalon
determinethe direction of the vectors in latitude and longitude, respectively.The function automatically determines the length of these vectorsto make them as long as possible without overlap. The object handlesof the displayed vectors can be returned in h
.h = quiverm(lat,lon,deltalat,deltalon,linestyle)
allowsthe control of the line specification of the displayed vectors witha linespec
. If you use symbols,they are plotted at the start points of the vectors, i.e., the inputpoints (lat
,lon
).h = quiverm(lat,lon,deltalat,deltalon,linestyle,'filled')
resultsin the filling in of any symbols specified by linestyle
.h = quiverm(lat,lon,deltalat,deltalon,scale)
and h= quiverm(lat,lon,deltalat,deltalon,linestyle,scale,'filled')
alterthe automatically calculated vector lengths by multiplying them bythe scalar value scale
. For example, if scale
is2, the displayed vectors are twice as long as they would be if scale
were1 (the default). When scale is set to 0, the automatic scaling issuppressed, and the length of the vectors is determined by the inputs.In this case, the vectors are plotted from (lat
,lon
)to (lat+deltalat
,lon+deltalon
).