maptrim
Interactively trim and convert map data from vector to raster format
Syntax
maptrim(lat,lon,linestyle)
maptrim(datagrid,refvec)
maptrim(datagrid,refvec,PropertyName,PropertyValue)
Description
maptrim(lat,lon) displays the supplied
map data in a new figure window and allows a region of the map to
be selected and saved in the workspace. lat and lon must
be vector map data. The output can be line, patch, or regular surface
(matrix) data. If patch map output is selected, the inputs lat and lon must
originally be patch map data.
maptrim(lat,lon,linestyle) displays the
supplied map, where linestyle defines the type
of line used, specified as a linespec.
maptrim(datagrid,refvec) displays data
grid data in a new figure window and allows a subset of this map to
be selected and saved. The output is regular surface data.
maptrim(datagrid,refvec, displays
the data grid using the surface properties provided. The object PropertyName,PropertyValue)Tag, EdgeColor,
and UserData properties cannot be set.
Controls
The maptrim tool displays the supplied
map data in a new figure window and activates a Customize menu
for that figure. The Customize menu
has three menu options: Zoom On/Off, Limits, and Save As.
The Zoom On/Off menu toggles interactive zoom on and off.
The Limits menu option activates the Enter Map Limits dialog box, which is used to enter the latitude and longitude limits of the desired map subset. These entries are two-element vectors, enclosed in brackets. Pressing the OK button zooms in to the new limits. Pressing the Cancel button disregards the new limits and returns to the map display.
The Save As menu option is used to specify the variable names in which to save the map data subset. To save line and patch data, enter the new latitude and longitude variable names, along with the map resolution. For surface data, enter the new map and referencing vector variable names, along with the scale of the map. Latitude and longitude limits are optional.