[mapserver-users] How increase the tolerance for GetFeatureInfo over a line dataset

[Jeff McKenna]

Hi Andrea,

Here is the thread on the QGIS cache problem for OGC services (includes 
the path to the folder that I must manually delete each time): 
http://osgeo-org.1560.x6.nabble.com/strange-GetCapabilities-caching-td5258591.html

Keep that in mind for your travels for sure.

-jeff

-- 
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/



On 2016-08-23 4:10 PM, Andrea Peri wrote:
> Hi Jeff,
> Thx for help,I resolved it.
> :)
> It was effectivelly a problem of our client gis
> :(
> not of mapserver.
> :)
>
> I don't remenber of the cache problem of qgis.
> :(
>
> Andrea.
>
>
> 2016-08-23 19:23 GMT+02:00 Jeff McKenna <jmckenna at gatewaygeomatics.com>:
>> Hi Andrea,
>>
>> I have tested a GetFeatureInfo (through a query in QGIS 2.16) with
>>
>>   TOLERANCE 50
>>   TOLERANCEUNITS pixels
>>
>> and it correctly returns text query results with a large radius.  I would
>> note that if you are also testing through QGIS, there is a nasty 'feature'
>> in the 2.x releases where I must manually delete my cache, if I want to see
>> changes in any of my WMS services (for example, after I change my mapfile I
>> must delete the contents of the QGIS cache folder).
>>
>> I am using MS4W 3.1.4 (MapServer 7.0.1).
>>
>> -jeff
>>
>>
>> --
>> Jeff McKenna
>> MapServer Consulting and Training Services
>> http://www.gatewaygeomatics.com/
>>
>>
>>
>> On 2016-08-23 12:14 PM, Andrea Peri wrote:
>>>
>>> Hi,
>>> I have a line dataset and need to allow an easy GetFeatureInfo over the
>>> lines.
>>> actually is extremely hard for an user to be able to click exactly
>>> over the line and retrieve the Information of the feature.
>>>
>>> So I need to increase the tollerance to the point click.
>>> I see from documentation that there is the two values:
>>> "tolerance" and "tolerance units",
>>> So i try to set both them
>>>
>>>     TOLERANCE 10.0
>>>     TOLERANCEUNITS pixels
>>>
>>> But no effect seem to have.
>>>
>>> Perhaps I understand wrongly to mean of "tolerance"
>>>
>>> Thx for every info.
>>>
>>
>>
>>