class_docstr: Provides methods to allow conversion between sheet and matrix
  coordinates.
docstr: Return x,y where x is a vector of sheet coordinates
  representing the x-center of each matrix cell, and y
  represents the corresponding y-center of the cell.
docstr_tok: ["Return","x",",","y","where","x","is","a","vector","of","sheet","coordinates","representing","the","x-center","of","each","matrix","cell",",","and","y","represents","the","corresponding","y-center","of","the","cell","."]
code: def sheetcoordinates_of_matrixidx(self):
      """
      Return x,y where x is a vector of sheet coordinates
      representing the x-center of each matrix cell, and y
      represents the corresponding y-center of the cell.
      """
      rows, cols = self.shape
      return self.matrixidx2sheet(np.arange(rows), np.arange(cols))
  
imports: import numpy
  from .boundingregion import BoundingBox
  from .util import datetime_types
label_desc: Use image node_id 13 for calling the SheetCoordinateSystem obj's underlying member method code with example usage: obj.sheetcoordinates_of_matrixidx() and returns: self