get_click_color

<p>a raster object, or an image loaded by
<code>magick::image_read</code> or the filename of 
that image.</p>

<p>The function draws an image and asks the user 
to click on the positions whose colors the user 
wants to know. NOTE: after clicking, you must 
press Esc button to continue. The result is a vector
of colors in hex mode.</p>

An extension to 'ggplot2' and 'magick'. It contains
three groups of functions: Functions in the first group draw 'ggplot2' - based plots: geom_shading_bar() draws barplot
with shading colors in each bar. geom_rect_cm(), geom_circle_cm() and geom_ellipse_cm() draw rectangles, circles
and ellipses with centimeter as their unit. Thus their sizes do not change when the coordinate system or the aspect ratio
changes. annotation_transparent_text() draws labels with transparent texts. annotation_shading_polygon() draws irregular
polygons with shading colors. Functions in the second group generate coordinates for regular shapes and make linear transformations. Functions in the third group are 'magick' - based functions facilitating image processing.

Jiang Wu

get_click_color: Obtaining the Colors of Positions Clicked

Description

Usage

Arguments