Package org.geotools.grid
Class Envelopes
- Object
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- Envelopes
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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
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Constructor Summary
Constructors Constructor Description Envelopes()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description 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.
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Method Detail
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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, ifresolution
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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