class_docstr: **Bases:** :class:`GraphicsObject <pyqtgraph.GraphicsObject>`
  
  Item displaying an isocurve of a 2D array. To align this item correctly with an 
  ImageItem, call ``isocurve.setParentItem(image)``.
class_docstr_tok: ["*","*","Bases",":","*","*",":","class",":","`","GraphicsObject","<","pyqtgraph.GraphicsObject",">","`","Item","displaying","an","isocurve","of","a","2D","array",".","To","align","this","item","correctly","with","an","ImageItem",",","call","``","isocurve.setParentItem","(","image",")","``","."]
docstr: Set the level at which the isocurve is drawn.
docstr_tok: ["Set","the","level","at","which","the","isocurve","is","drawn","."]
code: def setLevel(self, level):
      """Set the level at which the isocurve is drawn."""
      self.level = level
      self.path = None
      self.prepareGeometryChange()
      self.update()
  
file_path: pyqtgraph/pyqtgraph/graphicsItems/IsocurveItem.py
imports: from ..None import functions
  from ..None import getConfigOption
  from ..Qt import QtCore, QtGui
  from .GraphicsObject import GraphicsObject
label_desc: Use image node_id 3 for calling the IsocurveItem obj's underlying member method code with example usage: obj.setLevel(level) without return types