[Portugal] duvidas sobre openlayers
Hugo
hfpmartins gmail.com
Terça-Feira, 13 de Dezembro de 2011 - 10:34:17 EST
Se calhar o teu problema são as coordenadas que estás a passar para o
OpenaLayers.Bounds.
Confirma que tens as coordenadas certas (por exemplo através do QGis ou do
PostGIS)
Abc,
Hugo
2011/12/13 Pedro Costa <pedrocostaarma at sapo.pt>
>
>
> Bem agora começa a fazer sentido, tenho de mudar nesta parte:
>
> // set default position
> map.zoomToExtent(new OpenLayers.Bounds(5062994.9488977,
> -932033.61453498,
> -916746.20888068,
>
> 5071594.1145783));
>
>
> Aqui já muda para uma área 'com alguma coisa'...
>
>
>
>
>
>
>
>
>
>
> On 13-12-2011 15:20, Pedro Costa wrote:
>
>
> HUgo nesta parte do código:
>
> // set default position
> map.zoomToExtent(new OpenLayers.Bounds(880000,
> 6840000,
> 915000,
> 6860000));
>
> Também tenho de inserir os valores respectivos certo?
>
>
>
>
>
>
>
>
> On 13-12-2011 15:01, Hugo wrote:
>
> Olá Pedro,
>
> tens que fazer um map.setCenter();
>
> Abc,
> Hugo
>
> 2011/12/13 Pedro Costa <pedrocostaarma at sapo.pt>
>
>> Não entendo porque inseri os bounds da area que pretendo e ele abre com
>> uma area completamente diferente...
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On 13-12-2011 12:57, Hugo wrote:
>>
>> Aqui vai.
>> um abc,
>>
>> Hugo
>>
>>
>> map.events.register('zoomend', map, function(){
>> var mapProj = map.getProjection();
>> var mapZoom = map.getZoom();
>> var mapRes = map.getResolutionForZoom(mapZoom);
>> if (mapProj == 'EPSG:900913' && mapRes > 306){
>> map.zoomToScale(866688.0326989387, true);
>> }
>> });
>>
>> 2011/12/13 Pedro Costa <pedrocostaarma at sapo.pt>
>>
>>> Conheces algum exemplo do evento zoomend para eu tentar guiar-me?
>>>
>>> Obrigado
>>>
>>> Em 13-12-2011 12:45, Hugo escreveu:
>>>
>>> Experimenta adicionar o seguinte às opções do teu mapa:
>>>
>>> restrictedExtent: new OpenLayers.Bounds(.....);
>>>
>>>
>>> De qualquer maneira, qd usas layers comerciais (google, yahoo, etc),
>>> tens que definir tb nas layers algumas restrições nomeadamente as
>>> resoluções máximas, etc...
>>>
>>> Ou seja, o facto de definires o restricted extent não vai impedir de
>>> veres o mundo inteiro. Então podes fazer como te disse, ou ainda, podes
>>> adicionar um evento ao map on zoomend e detectas qual a resolução e se for
>>> maior que aquela que tu queres permitir entao fazes um zoom ao mapa...
>>> desta forma consegues eliminar a visualização do mundo inteiro.
>>>
>>> Abc,
>>>
>>> Hugo
>>>
>>> 2011/12/13 Pedro Costa <pedrocostaarma at sapo.pt>
>>>
>>>> Obrigado Hugo.
>>>> Eu estou a tentar que o exemplo do link abra na área que pretendo mas
>>>> está dificil.
>>>>
>>>> http://www.pgrouting.org/docs/ol-workshop/ch05.html
>>>>
>>>> Por exemplo, abri o exemplo original fiz zoom na área que pretendo e
>>>> com o firebug fiz map.getExtent(). Assim obtive os valores da bounding box
>>>> que queria penso eu:
>>>>
>>>> bottom
>>>> 5066053.4452291
>>>> left
>>>> -929102.37877511
>>>> right
>>>> -921458.67594797
>>>> top
>>>> 5070353.0280693
>>>>
>>>> A seguir inseri na variavel options coloquei estes valores mas mesmo
>>>> assim não, abre na área que queria.
>>>>
>>>> Alguém tem ideia porquê?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 13-12-2011 12:16, Pedro Costa wrote:
>>>>
>>>> Pessoal podem ajudar-me no seguinte:
>>>> Tenho esta parte do código:
>>>>
>>>>
>>>> var options = {
>>>>
>>>> projection: new OpenLayers.Projection("EPSG:900913"),
>>>>
>>>> units: "m",
>>>>
>>>> numZoomLevels: 22,
>>>>
>>>> maxResolution: 156543.0339,
>>>>
>>>> maxExtent: new OpenLayers.Bounds(-20037508, -20037508,
>>>>
>>>> 20037508, 20037508.34)
>>>>
>>>> };
>>>>
>>>>
>>>> retirado de: http://www.pgrouting.org/docs/ol-workshop/ch05.html
>>>>
>>>>
>>>> Significa que o mapa vai estar na projecção 900913. Neste exempo eu
>>>> quero mudar a area a ser apresentada por isso tenho de mudar o maxExtend
>>>> certo?
>>>> A questão é se eu no geoserver definir o srs como 900913 e calcular,
>>>> tenho os valores da bounding box,e é so substituir ou estou errado?
>>>>
>>>> Pelo que percebi:
>>>>
>>>> -20037508
>>>> (left = min X)
>>>>
>>>> -20037508
>>>> (bottom = min y)
>>>> 20037508
>>>>
>>>> (right = max X)
>>>> 20037508.34
>>>>
>>>> (top = max y)
>>>>
>>>>
>>>> Estou correcto?
>>>>
>>>> obrigado
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 13-12-2011 11:11, Jorge de Jesus wrote:
>>>>
>>>>
>>>> Oi
>>>>
>>>> Pelo que vejo:
>>>>
>>>> 1) Nao tens a proxy instalada para poderes contactar
>>>> http://localhost:8080
>>>>
>>>>
>>>> http://trac.osgeo.org/openlayers/wiki/FrequentlyAskedQuestions#HowdoIsetupaProxyHost
>>>>
>>>> Ate teres a proxy instalada o browser nao vai pedir nada ao servidor...
>>>>
>>>> 2) Tens duas vezes projection:
>>>> projection: 'map.getProjectionObject()',
>>>> reproject: 'True',
>>>> projection: new OpenLayers.Projection('4326'),
>>>>
>>>> Geralmente JS usa o ultimo valor definido, portanto estas a usar
>>>> projeccao 4325
>>>>
>>>> 3) O uso correct the OpenLayers.Projection e' com EPSG
>>>>
>>>> OpenLayers.Projection("EPSG:4326")
>>>>
>>>> All the best
>>>>
>>>> Jorge
>>>>
>>>>
>>>> On 13/12/11 10:50, Pedro Costa wrote:
>>>>
>>>> Acho que o problema é mesmo os wms que não são reprojectados:
>>>> Reparem neste exemplo que fiz:
>>>>
>>>>
>>>> http://pastebin.com/6i9TEWsH
>>>>
>>>>
>>>>
>>>> Simplesmente não aparece o wms
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 12-12-2011 09:38, Jorge de Jesus wrote:
>>>>
>>>>
>>>> Bons dias
>>>>
>>>>
>>>> Bem, se tens acerteza que o wms funciona sem problemas sem o layer
>>>> proprietario, o mais provavel e' que o WMS nao supporta EPSG:900913 ou gera
>>>> um erro quando fazes o pedido.
>>>>
>>>> No firebug, ve os pedidos feitos pela pagina (Seccao Net) e ve o pedido
>>>> feito ao servidor e a resposta data.
>>>>
>>>> Por exemplo tenho um sistema que faz o seguinte pedido:
>>>>
>>>>
>>>> http://localhost/rasdaman/wms.py?LAYERS=rasdamanImage&FORMAT=image%2Fpng&TIME=2011-06-20&STRATEGIES=%5Bobject%20Object%5D&TRANSPARENT=TRUE&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG%3A900913&BBOX=-6300637.7833253,4684889.401321,6076045.8348875,10359574.380423&WIDTH=1265&HEIGHT=580
>>>>
>>>> Experimenta a fazer um pedido ao teu WMS usando SRS=EPSG%3A900913
>>>>
>>>> Jorge
>>>>
>>>>
>>>> On 10/12/11 15:25, Pedro Costa wrote:
>>>>
>>>> Jorge,
>>>>
>>>> Sim lembro-me.Esclarece-me só a seguinte dúvida, o que é que o browser
>>>> não está a conseguir ir buscar na tua opinião mais precisamente? É que ele
>>>> vai buscar o layer proprietário, os wms é que não. Mas noutros exercicios
>>>> que efectuei sem o layer proprietario ele ia buscar tudo.
>>>>
>>>>
>>>> Obrigado
>>>> bom fim de semana
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 10-12-2011 09:26, Jorge Mendes de Jesus wrote:
>>>>
>>>> Oi
>>>>
>>>> Parece tudo em ordem, mas tens um ligeiro problema :)
>>>>
>>>> Lembras-te da explicacao relativa a cross-domain, ou seja podes acecer
>>>> a outros URLs partir de Javascript ?! Pois quando tens um url com uma porta
>>>> diferente tens a mesma situacao, ou seja:
>>>>
>>>> http://localhost:8080
>>>>
>>>> è um URL differente e tens de usar uma proxy para buscar os resultados.
>>>> Eu sempre pensei que mesmo com uma porta difererente nao haveria problemas
>>>> mas à alguns meses algume teve o mesmo problema e foi tudo explicado no
>>>> mailing list, acho que podes procurar no google pelos emails mais antigos.
>>>>
>>>> Alem disso, tens o WMS a funcionar a 100%? Experimentaste a fazer uma
>>>> pedido com EPSG:900913 ??
>>>>
>>>> Jorge
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: portugal-bounces at lists.osgeo.org on behalf of Pedro Costa
>>>> Sent: Fri 09/12/2011 13:47
>>>> To: portugal at lists.osgeo.org
>>>> Subject: Re: [Portugal] duvidas sobre openlayers
>>>>
>>>> On 09-12-2011 09:22, Jorge de Jesus wrote:
>>>> > No meu caso nao defino a projeccao da camada WMS e o OpenLayers usa a
>>>> > projeccao da baseLayer da google para tudo, o meu WMS tem suporte
>>>> > nativo para 900913. Acho que devia ter tido mais atencao ao codigo e
>>>> > seria mais correcto adicionar a informacao da projeccao
>>>> >
>>>> > projection: map.getProjectionObject()
>>>>
>>>>
>>>>
>>>> Tentei assim:
>>>>
>>>> http://pastebin.com/WLkRVbxu
>>>>
>>>>
>>>> Mas continuo sem sucesso, só é visivel o layer proprietário. Nem sequer
>>>> aparece o "+" do layer switcher, não percebo o porquê...
>>>>
>>>> Alguma sugestão?
>>>>
>>>> Obrigado
>>>>
>>>>
>>>> PS: O firebug tb não detecta nenhum erro.
>>>> _______________________________________________
>>>> Portugal mailing list
>>>> Portugal at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/portugal
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>>>>
>>>>
>>>>
>>>> --
>>>> PGP public key: 0x595FF9D3
>>>>
>>>>
>>>> ------------------------------
>>>>
>>>> Plymouth Marine Laboratory
>>>> Registered Office:
>>>> Prospect Place
>>>> The Hoe
>>>> Plymouth PL1 3DH
>>>>
>>>> Website: www.pml.ac.uk
>>>> Click here for PML Annual Review<http://www.pml.ac.uk/pdf/PMLAR2010.pdf>
>>>> Registered Charity No. 1091222
>>>> PML is a company limited by guarantee
>>>> registered in England & Wales
>>>> company number 4178503
>>>>
>>>> Please think before you print.
>>>> ------------------------------
>>>>
>>>> This e-mail, its content and any file attachments are confidential.
>>>>
>>>> If you have received this e-mail in error please do not copy, disclose
>>>> it to any third party or use the contents or attachments in any way. Please
>>>> notify the sender by replying to this e-mail or e-mail
>>>> forinfo at pml.ac.uk and then delete the email without making any copies
>>>> or using it in any other way.
>>>>
>>>> The content of this message may contain personal views which are not
>>>> the views of Plymouth Marine Laboratory unless specifically stated.
>>>>
>>>> You are reminded that e-mail communications are not secure and may
>>>> contain viruses. Plymouth Marine Laboratory accepts no liability for any
>>>> loss or damage which may be caused by viruses.
>>>> ------------------------------
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>>>>
>>>>
>>>>
>>>> --
>>>> PGP public key: 0x595FF9D3
>>>>
>>>>
>>>> ------------------------------
>>>>
>>>> Plymouth Marine Laboratory
>>>> Registered Office:
>>>> Prospect Place
>>>> The Hoe
>>>> Plymouth PL1 3DH
>>>>
>>>> Website: www.pml.ac.uk
>>>> Click here for PML Annual Review<http://www.pml.ac.uk/pdf/PMLAR2010.pdf>
>>>> Registered Charity No. 1091222
>>>> PML is a company limited by guarantee
>>>> registered in England & Wales
>>>> company number 4178503
>>>>
>>>> Please think before you print.
>>>> ------------------------------
>>>>
>>>> This e-mail, its content and any file attachments are confidential.
>>>>
>>>> If you have received this e-mail in error please do not copy, disclose
>>>> it to any third party or use the contents or attachments in any way. Please
>>>> notify the sender by replying to this e-mail or e-mail
>>>> forinfo at pml.ac.uk and then delete the email without making any copies
>>>> or using it in any other way.
>>>>
>>>> The content of this message may contain personal views which are not
>>>> the views of Plymouth Marine Laboratory unless specifically stated.
>>>>
>>>> You are reminded that e-mail communications are not secure and may
>>>> contain viruses. Plymouth Marine Laboratory accepts no liability for any
>>>> loss or damage which may be caused by viruses.
>>>> ------------------------------
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Portugal mailing list
>>>> Portugal at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/portugal
>>>>
>>>>
>>>
>>>
>>> --
>>> Hugo Martins
>>> LabNT - ISEGI UNL
>>> Campus de Campolide
>>> 1070-312 Lisboa
>>> N 38°43'56.84", W 9°9'35.74"
>>>
>>>
>>> _______________________________________________
>>> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>>>
>>>
>>> _______________________________________________
>>> Portugal mailing list
>>> Portugal at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/portugal
>>>
>>>
>>
>>
>> --
>> Hugo Martins
>> LabNT - ISEGI UNL
>> Campus de Campolide
>> 1070-312 Lisboa
>> N 38°43'56.84", W 9°9'35.74"
>>
>>
>> _______________________________________________
>> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>>
>>
>>
>> _______________________________________________
>> Portugal mailing list
>> Portugal at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/portugal
>>
>>
>
>
> --
> Hugo Martins
> LabNT - ISEGI UNL
> Campus de Campolide
> 1070-312 Lisboa
> N 38°43'56.84", W 9°9'35.74"
>
>
> _______________________________________________
> Portugal mailing listPortugal at lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/portugal
>
>
>
>
> _______________________________________________
> Portugal mailing list
> Portugal at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/portugal
>
>
--
Hugo Martins
LabNT - ISEGI UNL
Campus de Campolide
1070-312 Lisboa
N 38°43'56.84", W 9°9'35.74"
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/portugal/attachments/20111213/a0851e41/attachment-0001.html
Mais informações acerca da lista Portugal