Plus sign is lost in WMS rasql fragment

[Dimitar Misev]

The generated rasql query from WMS seems to be missing the plus sign, e.g. in rasql fragment for NDVI:

(($Iterator.3 - $Iterator.2) / ($Iterator.3 + $Iterator.2)) > 0.3

[Dimitar Misev]

Ok it's not so critical, for the moment I substitute + with some extra -

(($Iterator.3 - $Iterator.2) / ($Iterator.3 - -$Iterator.2)) > 0.3

[Alex Dumitru]

Ok, I've looked over several URL libraries in Java and none seem to keep the +. The alternative is to write one ourselves but all the edge cases would make this rather dangerous.

It seems HTTP requires servers to encode "+" as " ". Instead of "+" it should be "%2B". I've added instructions for the users here ​http://rasdaman.org/wiki/WMSGuide#Stylecreation

Please close the ticket if you think this would fix this for you, otherwise we can maybe find some alternative solution.

[Dimitar Misev]

Hmm how do we handle this in WCS? We transmit WCPS queries via WCS URLs as well.

[Bang Pham Huu]

Replying to dmisev:

Hmm how do we handle this in WCS? We transmit WCPS queries via WCS URLs as well.

I don't remember correctly but in fact it is due to HTTP encode special characters and somehow in WCS decoding it has been lost.

​http://rasdaman.org/ticket/1262 from here, I think it has 2 class for handling WCPS and WCS and it is missing in WCS class.

[Bang Pham Huu]

This ticket was fixed properly with not only WMS but by handle the request parameters in Petascope with REST, so WCS, WCPS also will not parse "+" as a space, close ticket as patch was accepted.