[Geoserver-users] GeoServer unable to compute intersection when unit of longitudes are in different format

GeoServer GeoServer User
1

org.geoserver.wcs.DefaultWebCoverageService100.computeIntersectionEnvelop(GeneralEnvelope requestedEnvelope, GeneralEnvelope nativeEnvelope) returns correctly computed intersection for below case:

requestedEnvelope=GeneralEnveloope
→ crs=DefaultGeographicCRS
→ ordinates=[-128.075, 21.92500000000004, -108.875, 43.075]

nativeEnvelope=GeneralEnvelope
→ crs=DefaultEngineeringCRS
→ ordinates=[-128.075, 21.92500000000004, -108.875, 43.075]

However, org.geoserver.wcs.DefaultWebCoverageService100.computeIntersectionEnvelop(GeneralEnvelope requestedEnvelope, GeneralEnvelope nativeEnvelope) returns NULL for below envelopes.

requestedEnvelope=GeneralEnveloope
→ crs=DefaultGeographicCRS
→ ordinates=[231.925, 21.92500000000004, 251.925, 43.075]

nativeEnvelope=GeneralEnvelope
→ crs=DefaultEngineeringCRS
→ ordinates=[-128.075, 21.92500000000004, -108.875, 43.075]

The first envelope was created from WPS post request with below envelope information:

<ns1:Envelope srsName=“EPSG:4326”>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>-128.075 21.925</gml:pos>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>-108.875 43.075</gml:pos>

</ns1:Envelope>

The second envelope was created from WPS post request with below envelope information:

<ns1:Envelope srsName=“EPSG:4326”>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>231.925 21.925</gml:pos>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>251.925 43.075</gml:pos>

</ns1:Envelope>

For both cases, the requestedEnvelope references the same area. The only difference is that one is in [-180:180] format and the other is in [0:360] format for longitudes.

Is this known issue? Or is the requestedEnvelope in second case incorrectly created and should be using some other CRS?

–
Joseph Shin

We are what we repeatedly do. Excellence then is not an act but a habit.

2

Hi Joseph,
I don’t know much of anything about this part of GeoServer but I’d guess it’s a bug, probably worth reporting to JIRA and letting the devs confirm it’s not if that’s the case.

Cheers,
Jonathan

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···

On 22 August 2014 17:21, Joseph Shin <koritoss@anonymised.com> wrote:

org.geoserver.wcs.DefaultWebCoverageService100.computeIntersectionEnvelop(GeneralEnvelope requestedEnvelope, GeneralEnvelope nativeEnvelope) returns correctly computed intersection for below case:

requestedEnvelope=GeneralEnveloope
→ crs=DefaultGeographicCRS
→ ordinates=[-128.075, 21.92500000000004, -108.875, 43.075]

nativeEnvelope=GeneralEnvelope
→ crs=DefaultEngineeringCRS
→ ordinates=[-128.075, 21.92500000000004, -108.875, 43.075]

However, org.geoserver.wcs.DefaultWebCoverageService100.computeIntersectionEnvelop(GeneralEnvelope requestedEnvelope, GeneralEnvelope nativeEnvelope) returns NULL for below envelopes.

requestedEnvelope=GeneralEnveloope
→ crs=DefaultGeographicCRS
→ ordinates=[231.925, 21.92500000000004, 251.925, 43.075]

nativeEnvelope=GeneralEnvelope
→ crs=DefaultEngineeringCRS
→ ordinates=[-128.075, 21.92500000000004, -108.875, 43.075]

The first envelope was created from WPS post request with below envelope information:

<ns1:Envelope srsName=“EPSG:4326”>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>-128.075 21.925</gml:pos>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>-108.875 43.075</gml:pos>

</ns1:Envelope>

The second envelope was created from WPS post request with below envelope information:

<ns1:Envelope srsName=“EPSG:4326”>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>231.925 21.925</gml:pos>

<gml:pos xmlns:gml=“http://www.opengis.net/gml”>251.925 43.075</gml:pos>

</ns1:Envelope>

For both cases, the requestedEnvelope references the same area. The only difference is that one is in [-180:180] format and the other is in [0:360] format for longitudes.

Is this known issue? Or is the requestedEnvelope in second case incorrectly created and should be using some other CRS?

–
Joseph Shin

We are what we repeatedly do. Excellence then is not an act but a habit.

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