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Allow specifying a fixed PrecisionModel via grid size#804
Merged
dr-jts merged 1 commit intolocationtech:masterfrom Nov 24, 2021
Merged
Allow specifying a fixed PrecisionModel via grid size#804dr-jts merged 1 commit intolocationtech:masterfrom
dr-jts merged 1 commit intolocationtech:masterfrom
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Signed-off-by: Martin Davis <mtnclimb@gmail.com>
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This enhancement allows specifying a fixed
PrecisionModelvia the grid size, instead of the scale factor. This is done by providing a negative value to thePrecisionModelconstructor.This is used to specify precise integral grid sizes, and provides a more accurate and robust rounding. Otherwise an integral grid size must be specified by the reciprocal scale factor, which in most cases cannot be computed exactly, and hence causes undesirable decimal places in computed precise values.
Internally the scale factor is computed as the reciprocal of the (positive) grid size value.
Signed-off-by: Martin Davis mtnclimb@gmail.com