rbokeh (version 0.5.0)

ly_contour: Add a "contour" layer to a Bokeh figure

Description

Computes and draws contour lines.

Usage

ly_contour(fig, z, x = seq(0, 1, length.out = nrow(z)), y = seq(0, 1,
  length.out = ncol(z)), nlevels = 10, levels = pretty(range(z, na.rm =
  TRUE), nlevels), color = "black", alpha = 1, width = 1, type = 1,
  lname = NULL, lgroup = NULL, visible = TRUE, ...)

Arguments

fig

figure to modify

z

a matrix containing the values to compute contour lines for

x, y

locations of grid lines at which the values in image are measured (see contourLines)

nlevels, levels

parameters sent to contourLines)

color

color to use to stroke lines with - a hex code (with no alpha) or any of the 147 named CSS colors, e.g 'green', 'indigo'

alpha

transparency value for the line between 0 (transparent) and 1 (opaque)

width

stroke width in units of pixels

type

an integer between 1 and 6 matching the lty property in par or an array of integer pixel distances that describe the on-off pattern of dashing to use

lname

layer name

lgroup

layer group

visible

should the layer be visible?

…

additional parameters for fine control over line properties (see "Additional parameters" below)

Additional parameters

line_join	how path segments should be joined together 'miter' 'round' 'bevel'
line_cap	how path segments should be terminated 'butt' 'round' 'square'
line_dash	an integer between 1 and 6 matching the lty property in par or an array of integer pixel distances that describe the on-off pattern of dashing to use

See Also

Other layer functions: ly_abline, ly_annular_wedge, ly_annulus, ly_arc, ly_bar, ly_bezier, ly_boxplot, ly_crect, ly_curve, ly_density, ly_hist, ly_image_url, ly_image, ly_lines, ly_map, ly_multi_line, ly_oval, ly_patch, ly_points, ly_polygons, ly_quadratic, ly_quantile, ly_ray, ly_rect, ly_segments, ly_text, ly_wedge

Examples

# NOT RUN {
p <- figure(xlim = c(0, 1), ylim = c(0, 1), title = "Volcano") %>%
  ly_image(volcano) %>%
  ly_contour(volcano)
p
# }