Description Usage Arguments Details Value Author(s) See Also Examples
A simple function to collect data for a map background (returns class
"Background"
) and methods operating an such a collection.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | background(extent, waters = TRUE, reliefmap = TRUE, gridlines = TRUE,
pretty = FALSE, add = 0, tol = 0.005, strahler = 4, score = 3, ecrins2 = FALSE)
## S4 method for signature 'Background'
plot(x, mar = rep(0,4), plain = FALSE, lwd.rivers = 1, add = FALSE,
frame = TRUE, col, ...)
## S4 method for signature 'Background'
show(object)
## S4 method for signature 'Background'
layers(object, ...)
## S4 method for signature 'Background'
grid(object)
## S4 method for signature 'Background'
margin(object, ...)
## S4 method for signature 'Background'
labelmargin(object, ...)
## S4 method for signature 'Background'
pdf(object, file, width, height, dingbats = FALSE, ...)
|
extent |
Extent object as defined in raster. See also |
waters |
Include water bodies (rivers and lakes) from package sabotagdata.
See |
ecrins2 |
Use bigger dataset (Austria and neighbours)
See |
reliefmap |
Include a colored relief map water from package sabotagdata.
See |
gridlines |
Include grid as lines additional to polygon grid. Defaults to |
pretty |
Recalculate extent using |
add |
Argument passed on to |
tol |
Simplify geometries using package rgeos. See |
strahler |
Subset rivers with Strahler stream order. See
|
score |
Subset lakes by lake score. |
x, object |
|
mar |
Add margins (see |
plain |
Do not plot anything but open plotting window. |
frame |
Draw a frame around figure. |
col |
Color of water bodies. If missing an internal default is applied. |
add |
|
lwd.rivers |
Linewidth for rivers. Multiplier to normalized strahler values. |
file, width, height, dingbats |
Arguments for pdf. See |
... |
To be passed to methods. Experimental. |
background
: returns an object where all layers are cropped to a common
extent. These layers can be accessed by layers(object)
, the method
returns a list. layers(x)$grid
returns what floragrid
calculated
on the input extent.
layers
: is a shortcut to return slot(object, "layers")
. This
method should be used to return the content of this slot.
grid
: returns the grid of objects of class background
.
margins
: returns the outer margin of floragrid
computed on
inherited extent of object (see extent
).
labelmargin
: returns an object (class SpatialPointsDataFrame
)
that can be used to plot margin labels. Row and column labels are computed
according to defaults of margin
.
pdf
creates PDF output.
An object of class background
. A list with elements of class Spatial*.
Roland Kaiser
1 2 | x <- background(extent(12,13,47,48))
plot(x)
|
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