| OCR Text |
Show 77 Precise The conversion of doubles to integers and the comparisons of numbers to zero for logic purposes in ACRE are affected by round-off error. This value allows a tolerance when making comparisons, and it may be set as low as 10- 2oo. The default value is 10-14, sufficient to make 2.0 "3.0 = 8.0 . When working with capacitance below 1 0-1s farads, precision may need to be set to 1 (}24. Scale CIF and Scale Stream These two values apply a divisor to the values of the CIF data and the GDSII stream data. The database units of the input data are the units that the user sees, and this provides a scaling factor to smaller numbers and larger database units. These two values default to one if set to zero, and they are applied as integer math because the resulting data is stored as longs. Search Distance This variable determines the maximum distance between geometries that is allowed when bringing them out for pair-wise analysis. If two geometries or segments or edges are beyond this distance apart, then the internal data filters prevent those pairs from coming out. This distance is built into the system where it is used during queries to the graphical data set, and it affects the accuracy of the result and the time needed for a run. |
