fix_dimension: Set the dimensions of child layers to fixed values
Description
This function makes use of the grid layout of a root layer to set the size of
its child layers.
Usage
fix_dimension(root, row = list(id = NULL, value = NULL), column = list(id = NULL, value = NULL))
Arguments
row
a list containing the row id's and the corresponding height values
column
a list containing column id's and width values
Value
The dimensions of child layers are set to given values, and their
stretch factors are set to 0.