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Package ‘arcgisbinding’ July 11, 2016 Version 1.0.0.121 Date 2016-07-11 Title Bindings for ArcGIS Author Esri Maintainer Esri NeedsCompilation no Description This package provides classes for loading, converting and exporting Ar- cGIS datasets and layers in R Depends R (>= 3.2.0) Imports methods Suggests sp License Apache License 2.0 URL http://esri.com OS_type windows Archs i386, x64 . . . . . . . R topics documented: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . arc.check_product . . arc.data2sp . . . arc.dataset-class . arc.env . . . arc.fromP4ToWkt . arc.fromWktToP4 . arc.open . . arc.progress_label . . arc.progress_pos . . arc.select . arc.shape . . . . arc.shape-class . arc.shape2sp . . . arc.shapeinfo . arc.sp2data . . . arc.write . . arcgisbinding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 3 4 5 6 6 8 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Index 16 1

2 arc.check_product arc.check_product ArcGIS product and license information Description Initialize connection to ArcGIS. Any script running directly from R (i.e. without being called from a Geoprocessing script) should ﬁrst call arc.check_product to create a connection with ArcGIS. Provides installation details on the version of ArcGIS installed that arcgisbinding can communicate with. Usage arc.check_product() Details Returned details include: • Product: ArcGIS Desktop (i.e. ArcMap), or ArcGIS Pro. The name of the product connected to. • License level: Basic, Standard, or Advanced are the three licensing levels available. Each provides progressively more functionality within the software. See the "Desktop Functionality Matrix" link for details. • Build number: The build number of the release being used. Useful in debugging and when creating error reports. • DLL: The dynamic linked library (DLL) in use allowing ArcGIS to communicate with R. References ArcGIS Desktop Functionality Matrix Note Additional license levels are available on ArcGIS Desktop: Server, EngineGeoDB, and Engine. These license levels are currently unsupported by this binding. Examples info <- arc.check_product() info$license # ArcGIS license level info$version # ArcGIS build number info$app # product name info$dll # binding DLL in use

arc.data2sp 3 arc.data2sp Convert an arc.dataframe object to an sp SpatialDataFrame object Description Convert an ArcGIS data.frame to the equivalent sp data frame type. The output types that can be generated: SpatialPointsDataFrame, SpatialLinesDataFrame, or SpatialPolygonsDataFrame. Usage arc.data2sp(x) Arguments x Examples data.frame result of arc.select require(sp) d <- arc.open(system.file("extdata", "ca_ozone_pts.shp", package="arcgisbinding")) df <- arc.select(d, ’ozone’) sp.df <- arc.data2sp(df) ## Not run: spplot(sp.df) arc.dataset-class Class "arc.dataset" Description arc.dataset S4 class Details The dataset_type slot possible values are described in the referenced "dataset properties – data type" documentation. For feature datasets, extent contains four double values: (xmin, ymin, xmax, ymax). The fields slot includes the details of the ArcGIS data types of the relevant ﬁelds, which include data types not directly representable in R. Slots path ﬁle path or layer name dataset_type dataset type extent spatial extent of the dataset fields list of ﬁeld names shapeinfo geometry information (see arc.shapeinfo) References 1. ArcGIS Help: Dataset properties – dataset type

arc.env 4 Examples ozone.file <- system.file("extdata", "ca_ozone_pts.shp", package="arcgisbinding") d <- arc.open(ozone.file) names(d@fields) # get all field names d@shapeinfo d # print shape info # print dataset info arc.env Get geoprocessing environment settings Description Geoprocessing environment settings are additional parameters that affect a tool’s results. Instead, they are values conﬁgured in a separate dialog box, and interrogated and used by the script when run. Usage arc.env() Details The geoprocessing environment can control a variety of attributes relating to where data is stored, the extent and projection of analysis outputs, tolerances of output values, and parallel processing, among other attributes. the default location for geoprocessing tool inputs and outputs. See the topics listed under "References" for details on the full range of environment settings that Geoprocessing scripts can utilize. References • ArcGIS Help: What is a geoprocessing environment setting? • ArcGIS Help: Setting geoprocessing environments Note • This function is only available from within an ArcGIS session. Usually, it is used to get local Geoprocessing tool environment settings within the executing tool. • This function can only read current geoprocessing settings. Settings, such as the current workspace, must be conﬁgured in the calling Geoprocessing script, not within the body of the R script. Examples ## Not run: tool_exec <- function(in_para, out_params) { env = arc.env() wkspath <- env$workspace ... return(out_params) }

arc.fromP4ToWkt ## End(Not run) 5 arc.fromP4ToWkt Convert PROJ.4 Coordinate Reference System string to Well-known Text. Description The arc.fromP4ToWkt command converts a PROJ.4 coordinate reference system (CRS) string to a well-known text (WKT) representation. Well-known text is used by ArcGIS and other applications to robustly describe a coordinate reference system. Converts PROJ.4 stings which include either the ’+proj’ fully speciﬁed projection parameter, or the ’+init’ form that takes well-known IDs (WKIDs), such as EPSG codes, as input. Usage arc.fromP4ToWkt(proj4) Arguments proj4 Details PROJ.4 projection string The produced WKT is equivalent to the ArcPy spatial reference exported string: arcpy.Describe(layer).SpatialReference.exportToString() References 1. OGC speciﬁcation 12-063r5 2. ArcGIS Help: What are map projections? Note The ’+init’ method currently only works with ArcGIS Pro. See Also arc.fromWktToP4 Examples arc.fromP4ToWkt("+proj=eqc") # Equirectangular arc.fromP4ToWkt("+proj=latlong +datum=wgs84") # WGS 1984 geographic arc.fromP4ToWkt("+init=epsg:2806") # initalize based on EPSG code

6 arc.open arc.fromWktToP4 Convert a Well-known Text Coordinate Reference System into a PROJ.4 string. Description Convert a well-known text (WKT) coordinate reference system (CRS) string to a PROJ.4 represen- tation. PROJ.4 strings were created as a convenient way to pass CRS information to the command- line PROJ.4 utilities, and have an expressive format. Alternatively, can accept a well-known ID (WKID), a numeric value that ArcGIS uses to specify projections. See the ’Using spatial refer- ences’ resource for lookup tables which map between WKIDs and given projection names. Usage arc.fromWktToP4(wkt) Arguments wkt References WKT projection string, or a WKID integer 1. ArcGIS REST API: Using spatial references 2. OGC speciﬁcation 12-063r5 3. ArcGIS Help: What are map projections? See Also arc.fromP4ToWkt Examples d <- arc.open(system.file("extdata", "ca_ozone_pts.shp", package="arcgisbinding")) arc.fromWktToP4(d@shapeinfo$WKT) arc.fromWktToP4(4326) # use a WKID for WGS 1984, a widely # used standard for geographic coordinates arc.open Open dataset, table, or layer Description Open ArcGIS datasets, tables and layers. Returns a new arc.dataset-class object which contains details on both the spatial information and attribute information (data frame) contained within the dataset.

7 arc.open Usage arc.open(path) Arguments path Value ﬁle path or layer name An arc.dataset object Supported Formats • Feature Class: A collection of geographic features with the same geometry type (i.e. point, line, polygon) and the same spatial reference, combined with an attribute table. Feature classes can be stored in a variety of formats, including: ﬁles (e.g. Shapeﬁles), Geodatabases, compo- nents of feature datasets, and as coverages. All of these types can be accessed using the full path of the relevant feature class (see note below on how to specify path names). • Layer: A layer references a feature layer, but also includes additional information necessary to symbolize and label a dataset appropriately. arc.open supports active layers in the current ArcGIS session, which can be addressed simply by referencing the layer name as it is dis- played within the application. Instead of referencing ﬁle layers on disk (i.e. .lyr and .lyrx ﬁles), the direct reference to the actual dataset should be used. • Table: Tables are effectively the same as data frames, containing a collection of records (or observations) organized in rows, with columns storing different variables (or ﬁelds). Feature classes similarly contain a table, but include the additional information about geometries lack- ing in a standalone table. When a standalone table is queries for its spatial information, e.g. arc.shape(table), it will return NULL. Table data types include formats such as text ﬁles, Excel spreadsheets, dBASE tables, and INFO tables. References • What is the difference between a shapeﬁle and a layer ﬁle? • ArcGIS Help: What is a layer? • ArcGIS Help: What are tables and attribute information? Note Paths must be properly quoted for the Windows platform. There are two styles of paths that work within R on Windows: • Doubled backslashes, such as: C:\\Workspace\\archive.gdb\\feature_class. • Forward-slashes such as: C:/Workspace/archive.gdb/feature_class. Network paths can be accessed with a leading \\\\host\share or //host/share path. To access tables and data within a Feature Dataset, reference the full path to the dataset, which follows the structure: ///. So for a table called table1 located in a feature dataset fdataset within a Geodatabase called data.gdb, the full path might be: C:/Workspace/data.gdb/fdataset/table1 See Also arc.dataset-class

8 Examples arc.progress_label ozone.file <- system.file("extdata", "ca_ozone_pts.shp", package="arcgisbinding") d <- arc.open(ozone.file) cat(’all fields:’, names(d@fields), fill = TRUE) # print all fields arc.progress_label Set progressor label for Geoprocessing dialog box Description Geoprocessing tools have a progressor, which includes both a progress label and a progress bar. The default progressor continuously moves back and forth to indicate the script is running. Using arc.progress_label and arc.progress_pos allows ﬁne control over the script progress. Updat- ing the progressor isn’t necessary, but is useful in situations where solely outputting messages to the dialog is insufﬁcient to communicate script progress. Usage arc.progress_label(label) Arguments label Details Progress Label Using arc.progress_label allows control over the label that is displayed at the top of the running script. For example, it might be used to display the current step of the analysis taking place. References Understanding the progressor in script tools Note • Currently only functions in ArcGIS Pro, and has no effect in ArcGIS Desktop. • This function is only available from within an ArcGIS session, and has no effect when run from the command line or in background geoprocessing. See Also arc.progress_pos, "Progress Messages" example Geoprocessing script Examples ## Not run: arc.progress_label("Calculating bootstrap samples...") ## End(Not run)

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