class_docstr: **Bases:** :class:`UIGraphicsItem <pyqtgraph.UIGraphicsItem>`
  
  Draws a set of tick marks which always occupy the same vertical range of the view,
  but have x coordinates relative to the data within the view.
class_docstr_tok: ["*","*","Bases",":","*","*",":","class",":","`","UIGraphicsItem","<","pyqtgraph.UIGraphicsItem",">","`","Draws","a","set","of","tick","marks","which","always","occupy","the","same","vertical","range","of","the","view",",","but","have","x","coordinates","relative","to","the","data","within","the","view","."]
code: def rebuildTicks(self):
      self.path = QtGui.QPainterPath()
      for x in self.xvals:
          self.path.moveTo(x, 0.0)
          self.path.lineTo(x, 1.0)
  
file_path: pyqtgraph/pyqtgraph/graphicsItems/VTickGroup.py
imports: from ..None import functions
  from ..Qt import QtGui, QtWidgets
  from .UIGraphicsItem import UIGraphicsItem
label_desc: Use image node_id 7 for calling the VTickGroup obj's underlying member method code with example usage: obj.rebuildTicks() without return types