surflm (Mapping Toolbox)

Project three-dimensional shaded surface with lighting on a map axes

Syntax

h = surflm(map)
h = surflm(map,s)
h = surflm(lat,lon,map)
h = surflm(lat,lon,map,s)
h = surflm(lat,lon,map,s,k)

Description

surflm is like surfm except that it shades the monochrome map surface with a light source, and the only allowed graticule is the size of the map matrix.

h = surflm(map) displays the matrix map map projected to a graticule grid the size of map in accordance with the current map axes MapProjection property. It is displayed with a default light source. The handle h of the displayed surface object can be returned.

h = surflm(map,s) specifies the direction of the light source. s is a two- or three-element vector that specifies the direction from the surface map to the light source. s=[sx sy sz] or s=[azimuth elevation]. The default s is 45º counterclockwise from the current view direction.

h = surflm(lat,lon,map) allows you to specify your graticule. lat and lon can be vectors with elements corresponding to map rows and columns, respectively, or they can be matrices the size of map. The resulting graticule will be the size of map.

h = surflm(lat,lon,map,s,k) specifies the reflectance constant. k is a four-element vector defining the relative contributions of ambient light,
diffuse reflection, specular reflection, and the specular shine coefficient. k=[ka,kd,ks,shine] and defaults to [.55 .6 .4 10].

Examples

To see this, type the following. The graticule is the size of topo (180 x 360) and is rendered in 3-D, so it might take a while. It is also memory intensive:

```
load topo
axesm miller
surflm(topo)
```

See Also

surfm
Matrix map projected on map axes

`surfm`	Matrix map projected on map axes

surfacem surflsrm