layout-accessors: Grid layout accessors
Description
Add or retrieve a layer to or from the grid layout of another layerUsage
## S3 method for class '`Qanviz::Layer`':
[(x, i=0, j=0, rowSpan=1, colSpan=1) <- value
## S3 method for class '`Qanviz::Layer`':
[(x, i=0, j=0)
Arguments
rowSpan
Number of rows spanned by value
colSpan
Number of columns spanned by value
value
The layer to add to the layout