vcp_map: Get map png from the Vegetation Characterization Program...

In sckott/usgs: R interface to USGS APIs

Description

Get map png from the Vegetation Characterization Program (VCP).

Usage

  vcp_map(park = "Acadia_NP", f = "image", bbox = NULL,
    size = NULL, dpi = NULL, format = "png",
    transparent = "false", file = "~/image", plot = FALSE,
    ...)

Arguments

park	Park to search, defaults to Acadia National Park ("Acadia_NP").
f	The response format, one of json, image, or kmz.
bbox	The extent (bounding box) of the exported image. Unless the bboxSR parameter has been specified, the bbox is assumed to be in the spatial reference of the map. See examples below.
size	The size (width * height) of the exported image in pixels. If the size is not specified, an image with a default size of 400 * 400 will be exported. e.g.: "600,500"
dpi	The device resolution of the exported image (dots per inch). If the dpi is not specified, an image with a default DPI of 96 will be exported.
format	The format of the exported image. The default format is png. Options are: png, png8, png24, jpg, pdf, bmp, gif, svg, and png32.
layers	Determines which layers appear on the exported map. There are four ways to specify which layers are shown: show: (only the layers specified in this list will be exported), hide (all layers except those specified in this list will be exported), include (in addition to the layers exported by default, the layers specified in this list will be exported), exclude (the layers exported by default excluding those specified in this list will be exported)
transparent	If TRUE, image will be exported with the background color of the map set as its transparent color. The default is FALSE. Only the png and gif formats support transparency.
...	Pass on parameters to grid.raster for plotting images. See ?grid::grid.raster for options.

Examples

## Not run: 
# plot a map
vcp_map(bbox="-1.1555796946844999E7,5220831.371255575,-1.1541665204054998E7,5230496.950050622", park="Agate_Fossil_Beds_NM", plot=TRUE)

# save the map to file
vcp_map(bbox="-1.1555796946844999E7,5220831.371255575,-1.1541665204054998E7,5230496.950050622", park="Agate_Fossil_Beds_NM")

## End(Not run)

sckott/usgs documentation built on May 29, 2019, 4:07 p.m.