Source code for laygo2.object.grid.placement

#!/usr/bin/python
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from .core import Grid

[docs] class PlacementGrid(Grid): """ PlacementGrid class implements a grid for placement of Instance and VirtualInstance objects. """ type = "placement" """ Type of grid. Should be 'placement' for placement grids."""
[docs] def place(self, inst, mn): """ Place the instance on the specified coordinate mn, on this grid. Parameters ---------- inst : laygo2.object.physical.Instance or laygo2.object.physical.VirtualInstance The instance to be placed on the grid. mn : numpy.ndarray or list The abstract coordinate [m, n] to place the instance. Returns ------- laygo2.object.physical.Instance or laygo2.object.physical.VirtualInstance : The placed instance. Example ------- >>> import laygo2 >>> from laygo2.object.grid import OneDimGrid, PlacementGrid >>> from laygo2.object.physical import Instance >>> # >>> # Create a grid (not needed if laygo2_tech is set up). >>> # >>> gx = OneDimGrid(name="gx", scope=[0, 20], elements=[0]) >>> gy = OneDimGrid(name="gy", scope=[0, 100], elements=[0]) >>> g = PlacementGrid(name="test", vgrid=gx, hgrid=gy) >>> # >>> # Create an instance >>> # >>> i0 = Instance(libname="tlib", cellname="t0", name="I0", xy=[0, 0]) >>> print(inst0.xy) [100, 100] >>> # >>> # Place the created instance >>> # >>> g.place(inst=i0, mn=[10,10]) >>> # Print parameters of the placed instance. >>> print(i0.xy) [200, 1000] """ inst.xy = self[mn] return inst