style_methods: Create styles

In crazycapivara/openlayers: An R Interface to 'OpenLayers'

Description

Style methods to create style objects corresponding to openlayers style classes.

Usage

stroke_style(color = "green", width = 2)

fill_style(color = "rgba(0, 0, 255, 0.5)")

circle_style(stroke = stroke_style(), fill = fill_style(), radius = 10)

icon_style(src = NULL, anchor = c(0.5, 0.8), icon_color = NULL)

marker_style(src = NULL, anchor = c(0.5, 0.8), icon_color = NULL)

text_style(text = NULL, property = NULL, scale = 1.5, color = "black",
  stroke = NULL, offset_xy = c(0, 0))

Arguments

color	stroke or fill color
width	stroke width in pixels
stroke	stroke style or NULL (do not stroke)
fill	fill style or NULL (do not fill)
radius	radius in pixels
src	url of the icon, base64 encoded icon (see make_icon) or NULL (use default icon)
anchor	center of the icon relative to its top left corner
icon_color	color to tint the icon or NULL (keep original)
text	text content, ignored in case property parameter is set
property	feature property used as text content
scale	text scale
offset_xy	horizontal and vertical text offset in pixel, positive offsets will shift the text right and down

Value

style object

Note

color, icon_color, radius and text can be single values applied to all features or vectors of length equal to the number of features

Examples

  style <- stroke_style() + fill_style()

  point_style <- circle_style(stroke_style(color = "blue"), fill = NULL)

crazycapivara/openlayers documentation built on June 4, 2019, 8:08 p.m.