default_overlay: Default color overlay for adding new layers

In eilslabs/HilbertCurve: Making 2D Hilbert Curve

Description

Default color overlay for adding new layers

Usage

default_overlay(r0, g0, b0, r, g, b, alpha = 1)

Arguments

r0	red channel for the layers that are already in the plot.
g0	green channel for the layers that are already in the plot.
b0	blue channel for the layers that are already in the plot.
r	red channel for the new layer
g	green channel for the new layer
b	blue channel for the new layer
alpha	alpha channel for the new layer

Details

The default overlay is (take red channel for example) r*alpha + r0*(1-alpha).

Value

A list which contains overlayed RGB colors.

Author(s)

Zuguang Gu <[e-mail]>

See Also

Color overlay function is always used in hc_layer,HilbertCurve-method or hc_layer,GenomicHilbertCurve-method.

Examples

# red (1, 0, 0) overlay to the grey (0.5, 0.5, 0.5) with 0.5 transparency
default_overlay(1, 0, 0, 0.5, 0.5, 0.5, 0.5)

eilslabs/HilbertCurve documentation built on May 16, 2019, 1:23 a.m.