plotGoogleMaps: Create a plot of spatial data on Google Maps

Description

Plot htm output with Google Maps API and a plot of spatial data as a combination of users' data and Google Maps layers. Ready to use as local htm file or into your own website.

Usage

plotGoogleMaps(SP,  filename = '', zcol = 1, at=NULL, add = FALSE,  previousMap = NULL, colPalette = NULL, strokeColor = "", strokeOpacity = 1, fillOpacity=0.7, strokeWeight = 1, geodesic = TRUE,  clickable = TRUE, draggableMarker = FALSE, iconMarker='', flat = TRUE,  visible = TRUE,  zIndex = 'null', map.width="100%", map.height="100%", layerName="", control.width="100%", control.height="100%", zoom = 15,  fitBounds = TRUE, mapTypeId = 'HYBRID',  disableDoubleClickZoom = FALSE,  draggable = TRUE,  keyboardShortcuts = TRUE,  mapTypeControlOptions = 'DEFAULT', navigationControl = TRUE, navigationControlOptions = 'DEFAULT',  scaleControlOptions = 'STANDARD', noClear = FALSE, scrollwheel = TRUE,  streetViewControl = FALSE, legend=TRUE, control=TRUE, InfoWindowControl=list(map=map, event="click",position="event.latLng", disableAutoPan=FALSE, maxWidth=330, pixelOffset="null",zIndex="null") , map="map", mapCanvas="map_canvas", css = "",                                      api="https://maps.google.com/maps/api/js?sensor=false&v=3.18", openMap=TRUE)

Arguments

object of Spatial-class with associated coordinate reference systems

filename

the name of the output htm or html file. If filename is not defined the function creates temporary file.

zcol

variable column name, or column number after removing spatial coordinates from x@data: 1 refers to the first non-coordinate column

values at which colours will change

add

logical; if TRUE the result of the function will be a list stored as variable in the R. It is possible to combine more layers in the one plot, previously saved output from plotGoogleMaps should be given in the previousMap attribute.

previousMap

previously saved variable from plotGoogleMaps or bubbleGoogleMaps when attribute add is TRUE. It is solution for combining more than one layers in the one plot.

colPalette

colours to be used to fill polygon or colour for the line

strokeColor

the color to draw the borders of polygon, NULL for no border

strokeOpacity

the stroke opacity between 0.0 and 1.0 for the polygon or line

fillOpacity

the fill opacity (polygons) between 0.0 and 1.0

strokeWeight

the stroke width in pixels for polygon border or line

geodesic

render each edge as a geodesic (a segment of a 'great circle')

clickable

indicates whether this marker (point), polygon or line handles click events

draggableMarker

if TRUE, the marker can be dragged

iconMarker

if '' default marker icon, link to the image or local image to be used as marker image

flat

if TRUE, the marker shadow will not be displayed

visible

if TRUE, the marker is visible

zIndex

the zIndex compared to other polygons

map.width

the width of the map. Can be in percent or in pixels (px)

map.height

the height of the map. Can be in percent or in pixels (px)

layerName

the name of the layer. Layer name appears on the check box for switching layer of and on in output htm.

control.width

the width of the part of htm for controlling layer (legend, opacity,...) Can be in percent or in pixels (px).

control.height

the height of the part of htm for controlling layer (legend, opacity,...) Can be in percent or in pixels (px).

zoom

the initial Map zoom level.Zoom levels between 0 (the lowest zoom level, in which the entire world can be seen on one map) to 19 (the highest zoom level, down to individual buildings) are possible within the normal maps view. Argument fitBounds should be FALSE.

fitBounds

sets the maps to fit to the boundary box values of sp object

mapTypeId

the initial Map mapTypeId. 'HYBRID' - map type displays a transparent layer of major streets on satellite images. 'ROADMAP' - map type displays a normal street map. 'SATELLITE' - map type displays satellite images. 'TERRAIN' - map type displays maps with physical features such as terrain and vegetation.

disableDoubleClickZoom

enables or disables zoom and center on double click.

draggable

if FALSE, prevents the map from being dragged

keyboardShortcuts

if FALSE, prevents the map from being controlled by the keyboard.

mapTypeControlOptions

the initial display options for the Map type control. 'DEFAULT' - uses the default map type control. 'DROPDOWN_MENU' - a dropdown menu for the screen realestate conscious. 'HORIZONTAL_BAR' - the standard horizontal radio buttons bar.

navigationControl

enabled or disabled state of the navigation control

navigationControlOptions

the initial display options for the navigation control. 'ANDROID' - the small zoom control similar to the one used by the native Maps application on Android. 'DEFAULT' - the default navigation control. The control which DEFAULT maps to will vary according to map size and other factors. It may change in future versions of the API. 'SMALL' - the small, zoom only control. 'ZOOM_PAN' - the larger control, with the zoom slider and pan directional pad.

scaleControlOptions

the initial display options for the scale control.

noClear

if TRUE, do not clear the contents of the Map div.

scrollwheel

if FALSE, disables scrollwheel zooming on the map.

streetViewControl

The initial enabled or disabled state of the Street View pegman control

legend

if FALSE, disables legend.

control

if FALSE, disables control.

InfoWindowControl

see https://developers.google.com/maps/documentation/javascript/reference#InfoWindowOptions

map

name of map object in JavaScript

mapCanvas

name of map DIV element

css

CSS for mapCanvas and cBoxes

api

see https://developers.google.com/maps/documentation/javascript/tutorial

openMap

if TRUE map is browesed by default browser

Value

else what is necessary for the final web map. The second output is html file ready to use.

Examples

Run this code

# Data preparation
# Point data
data(meuse)
require(maptools)
coordinates(meuse)<-~x+y
proj4string(meuse) <- CRS('+init=epsg:28992')
# Line data
data(meuse.grid)
coordinates(meuse.grid)<-c('x','y')
meuse.grid<-as(meuse.grid,'SpatialPixelsDataFrame')
im<-as.image.SpatialGridDataFrame(meuse.grid['dist'])
cl<-ContourLines2SLDF(contourLines(im))
proj4string(cl) <- CRS('+init=epsg:28992')

# Create web map of Point data
m<-plotGoogleMaps(meuse) 

# Combine point and line data
mapMeusePoints<- plotGoogleMaps(meuse,add=TRUE,mapTypeId='TERRAIN',filename='myMap2.htm')
mapMeuseCl<- plotGoogleMaps(cl,previousMap=mapMeusePoints,filename='myMap2.htm')
# see results in your working directory

Run the code above in your browser using DataLab

Description

Usage

Arguments

Value

See Also

Examples