FishnetFunction: Fishnet Tool

In MBalthasar/SpatialDataToolbox: Toolbox for Spatial Data Manipulation

Description

This function creates a fishnet polygon from an input shapefile. The output fishnet will be reprojected to UTM.

Usage

FishnetFunction(my_poly, extent_only, diff_factor, length_factor)

Arguments

my_poly	A sp objetct.
extent_only	(optional) TRUE (default) or FALSE. If the user input file is a polygon, the extent_only can be set to FALSE and the ouptut fishnet polygon will be cropped to the input file.
diff_factor	Integer. Faktor after which the extent of the input file will be divided into x and y direction.
length_factor	Vector of two integer. Can be used instead of the diff_factor. Distance in meters of one tile n x and y direction.

Value

A fishnet polygon in UTM projection.

Examples

library(sp)
library(raster)
library(rgdal)
library(rgeos)
library(geosphere)

# Load sample shapefile including the borders of vietnam
vnm_shp <- raster::shapefile(system.file(package = "SpatialDataToolbox", "extdata",
                                         "vietnam_borders.shp"))

# Apply diff_factor
x1 <- FishnetFunction(my_poly = vnm_shp, extent_only = FALSE, diff_factor = 10)

# Apply length_factor
x2 <- FishnetFunction(my_poly = vnm_shp, extent_only = FALSE, length_factor = c(100000,100000))

MBalthasar/SpatialDataToolbox documentation built on Jan. 29, 2020, 3:15 a.m.