org.geotools.grid
Class Envelopes
Object
Envelopes
public class Envelopes
- extends Object
A helper class to create bounding envelopes with width and height that are
simple multiples of a given resolution.
// Example of use: creating an envlope with 'neat' lat-lon bounds
// that encompasses a set of features
SimpleFeatureSource featureSource = ...
ReferencedEnvelope featureBounds = featureSource.getBounds();
ReferencedEnvelope latLonEnv = featureBounds.transform(DefaultGeographicCRS.WGS84, true);
// 1 degree grid resoluation
final double gridSize = 1.0;
ReferencedEnvelope gridBounds = Envelopes.expandToInclude(latLonEnv, gridSize);
- Since:
- 2.7
- Author:
- mbedward
Methods inherited from class Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Envelopes
public Envelopes()
expandToInclude
public static ReferencedEnvelope expandToInclude(ReferencedEnvelope srcEnv,
double resolution)
- Include the provided envelope, expanding as necessary and rounding
the bounding coordinates such that they are multiples of the
specified resolution. For example, if
resolution
is 100 then the
min and max bounding coordinates of this envelope will set to mutliples
of 100 by rounding down the min values and rounding up the max values
if required.
// Example, create a new envelope that cntains an input envlope and
// whose boundind coordinates are multiples of 100
//
ReferencedEnvelope inputEnv = ...
ReferencedEnvelope roundedEnv = new ReferencedEnvelope();
roundedEnv.expandToInclude(inputEnv, 100);
- Parameters:
srcEnv
- the envelope to includeresolution
- resolution (in world distance units) of the resulting
boundary coordinates
- Returns:
- a new envelope with 'rounded' bounding coordinates
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