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This function adds an approximation of a circle to a GDSII file stream. GDSII files do not support circles, so this is just a convenient function to create a polygon representation of a circle. Polygons can only be added in a GDSII cell, so this command can be called only if a cell has been created.
Supported Product: FDTD, MODE, DEVICE, INTERCONNECT 
Syntax 
Description 
gdsaddcircle(f, layer, x, y, r, n) 
Adds an approximation of a circle on a layer with x, ycoordinates, radius and number of polygon sides. 
Parameter 
Type 
Description 
f 
string 
a file handle that was previously opened with gdsopen. 
layer 
string or number 
string: a string of the form "layer:datatype" (for example "6:2") can be used to define the layer number and datatype for this structure from the GDSII file to import. Layer and datatype are integers.
number: defines the layer number and sets the datatype to be zero. 
x 
number 
xcoordinate of the center position in meters. 
y 
number 
ycoordinate of the center position in meters. 
r 
number 
radius of the circle in meters. 
n 
number 
number of sides to use in the polygon approximation. It is 64 by default. 
An example of script code is available on the gdsopen page.
See Also
gdsopen, gdsclose, gdsbegincell, gdsendcell, gdsaddpoly, gdsaddref, gdsimport