public interface Precision extends Comparable<Precision>
A precision model defines a grid of allowable points. The
round(org.opengis.geometry.DirectPosition) method allows to
round a direct position to the nearest allowed point. The
getType() method describes the
collapsing behavior of a direct position.
Precision instances can be sorted by their scale.
|Modifier and Type||Method and Description|
Compares this precision model with the specified one.
Multiplying factor used to obtain a precise ordinate.
Returns the type of this precision model.
Rounds a direct position to this precision model in place.
int compareTo(Precision other)
Multiply by this value and then divide by this value to round correctly:
So to round todouble scale = pm.getScale(); return Math.round(value * scale) / scale;
3significant digits we would have a scale of
1000. Tip: the number of significant digits can be computed as below:
int significantDigits = (int) Math.ceil(Math.log10(pm.getScale()));
void round(DirectPosition position)
It is likely that a
Precision instance will keep different rounding rules for
different axis (example x & y ordinates may be handled differently then
height), by always rounding a direct position as a whole we will enable this functionality.
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