Queries ScienceBase based on a spatial bounding box. Accepts either an sp spatial data object (uses the spatial object's bounding box) or long/lat coordinates defining the bounding box limits.
Arguments
- bbox
An sf spatial data object. The bounding box of the object is used for the query.
- long
A vector of longitude values that will define the boundaries of a bounding box. Min and Max of supplied longitudes are used. (alternate option to bbox).
- lat
A vector of latitude values that will define the boundaries of a bounding box. Min and Max of supplied latitude are used. (alternate option to bbox).
- bb_wkt
A character string using the Well Known Text (WKT) standard for defining spatial data. Must be a POLYGON WKT object.
- ...
Additional parameters are passed on to
GET- limit
Maximum number of returned items. Will do paging to retrieve results when limit is over 1000. Use with caution, queries 10k results are slow.
Examples
# \donttest{
#specify the latitude and longitude points to define the bounding box range.
# This is simply bottom left and top right points
query_sb_spatial(long=c(-104.4, -95.1), lat=c(37.5, 41.0), limit=3)
#> [[1]]
#> <ScienceBase Item>
#> Title: FSA 10:1 NAIP Imagery m_4009713_sw_14_h_20160720_20161019 3.75 x 3.75 minute JPEG2000 from The National Map
#> Creator/LastUpdatedBy: /
#> Provenance (Created / Updated): /
#> Children:
#> Item ID: 59eb2be5e4b0026a55fe74b3
#> Parent ID: 51355312e4b0e1603e4fed62
#>
#> [[2]]
#> <ScienceBase Item>
#> Title: FSA 10:1 NAIP Imagery m_4009714_se_14_h_20160720_20161019 3.75 x 3.75 minute JPEG2000 from The National Map
#> Creator/LastUpdatedBy: /
#> Provenance (Created / Updated): /
#> Children:
#> Item ID: 59eb2be5e4b0026a55fe74c3
#> Parent ID: 51355312e4b0e1603e4fed62
#>
#> [[3]]
#> <ScienceBase Item>
#> Title: FSA 10:1 NAIP Imagery m_4009714_sw_14_h_20160720_20161019 3.75 x 3.75 minute JPEG2000 from The National Map
#> Creator/LastUpdatedBy: /
#> Provenance (Created / Updated): /
#> Children:
#> Item ID: 59eb2be6e4b0026a55fe74c9
#> Parent ID: 51355312e4b0e1603e4fed62
#>
#use a pre-formatted WKT polygon to grab data
query_sb_spatial(bb_wkt="POLYGON((-104.4 41.0,-95.1 41.0,-95.1 37.5,-104.4 37.5,-104.4 41.0))",
limit=3)
#> [[1]]
#> <ScienceBase Item>
#> Title: FSA 10:1 NAIP Imagery m_4009713_sw_14_h_20160720_20161019 3.75 x 3.75 minute JPEG2000 from The National Map
#> Creator/LastUpdatedBy: /
#> Provenance (Created / Updated): /
#> Children:
#> Item ID: 59eb2be5e4b0026a55fe74b3
#> Parent ID: 51355312e4b0e1603e4fed62
#>
#> [[2]]
#> <ScienceBase Item>
#> Title: FSA 10:1 NAIP Imagery m_4009714_se_14_h_20160720_20161019 3.75 x 3.75 minute JPEG2000 from The National Map
#> Creator/LastUpdatedBy: /
#> Provenance (Created / Updated): /
#> Children:
#> Item ID: 59eb2be5e4b0026a55fe74c3
#> Parent ID: 51355312e4b0e1603e4fed62
#>
#> [[3]]
#> <ScienceBase Item>
#> Title: FSA 10:1 NAIP Imagery m_4009714_sw_14_h_20160720_20161019 3.75 x 3.75 minute JPEG2000 from The National Map
#> Creator/LastUpdatedBy: /
#> Provenance (Created / Updated): /
#> Children:
#> Item ID: 59eb2be6e4b0026a55fe74c9
#> Parent ID: 51355312e4b0e1603e4fed62
#>
# }