cairoSetSourceRgb: cairoSetSourceRgb

Description Usage Arguments Details Author(s)

View source: R/cairoFuncs.R

Description

Sets the source pattern within cr to an opaque color. This opaque color will then be used for any subsequent drawing operation until a new source pattern is set.

Usage

1
cairoSetSourceRgb(cr, red, green, blue)

Arguments

cr

[Cairo] a cairo context

red

[numeric] red component of color

green

[numeric] green component of color

blue

[numeric] blue component of color

Details

The color components are floating point numbers in the range 0 to 1. If the values passed in are outside that range, they will be clamped.

The default source pattern is opaque black, (that is, it is equivalent to cairo_set_source_rgb(cr, 0.0, 0.0, 0.0)).

Author(s)

Derived by RGtkGen from GTK+ documentation


RGtk2 documentation built on May 30, 2017, 5:53 a.m.