idiograb reads the position of the graphics pointer
when the (first) mouse button is pressed. idiogram also reads
a second position of the graphics pointer after another
mouse button press. The two points selected are used to define a
diagonal line from which a bounding box will be constructed. It then
retrieves the gene identifiers of the points that lie within the
bounding box.
point coordinates and cooresponding gene identifiers
from an idiogram function call
show.box
boolean. if TRUE, a box is drawn showing the selected
region
brush
a color to highlight the points within the selected region
...
additional plotting paramters passed to points to
modify the points within the selected region
Value
A character vector of gene identifiers
Details
Coordinates can be passed in a plotting structure (a list with
x, y, and labels components). Typically this is
generated from a call to idiogram.
The points selected are used to define the top-left and bottom-right
locations or the bottom-left and top-right locations for
bounding box. These locations can be selected in any order.
A character vector of the labels of all the points that lie within the
selected region is returned.