[mapguide-users] Issues selecting a feature with custom coding

[nclayton]

ah ok, I see what you mean...guess my level of base64 experience is obvious
:p I'll see what I can do now that I know, since knowing is half the
battle...

Thank you for the input, and I may have more questions to ask later.

Nick


Kenneth, GEOGRAF A/S wrote:
> 
> The featureID is not converted into a string and then base64 encoded.
> It is split into 4 bytes (C representation of an int) that are then base 
> 64 encoded:
> 
> 33181 = 0x 00 00 81 9D = 0x 9D 81 00 00
> 
> The four bytes converted to Base64 gives nYEAAA==
> 
> Regards, Kenneth, GEOGRAF A/S
> 
> 
> 
> nclayton skrev:
>> Here are the results of both the mgos base64 value and the php
>> base64_encode
>> value:
>>
>> Actual FeatId: 33181
>> MGOS Value: nYEAAA==
>> base64_encode Value: MzMxODE=
>>
>> I found code for writing a base64 function in javascript, and it gives
>> the
>> same result as the php function.
>>
>>
>>
>> Kenneth, GEOGRAF A/S wrote:
>>   
>>> If you select the feature, you can read the WKT or BoundingBox for the 
>>> object.
>>> With this info, you can calculate the Center X,Y + Scale, and manually 
>>> zoom to it.
>>>
>>> I have not worked enough with the selection to understand it completely.
>>> However, I think you are mistaken about the Base64 functions not being 
>>> compatible.
>>> What appears to be different about the two encodings?
>>>
>>> If they truly are different, it is very easy to write your own base64 
>>> encoding/decoding functions.
>>>
>>> Regards, Kenneth, GEOGRAF A/S
>>>
>>>
>>>
>>> nclayton skrev:
>>>     
>>>> Hi everyone,
>>>> Here is my situation:
>>>>
>>>> I am hacking up the mapviewerphp files to fit the needs of the company
>>>> I
>>>> work for. One piece of functionality that is requried is that after a
>>>> user
>>>> queries our database for owner information, it is displayed in a new
>>>> frame.
>>>> Along with this information, there is a 'Zoom to Parcel' link. When the
>>>> user
>>>> clicks this, it should zoom to that parcel and select it without
>>>> affecting
>>>> the owner data list.
>>>>
>>>> My issue right now is in the selection of the parcel. I'm folling the
>>>> code
>>>> given in the dev guide, but my $selection->ToXml() always comes out as:
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?><FeatureSet
>>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>>> xsi:noNamespaceSchemaLocation="FeatureSet-1.0.0.xsd"></FeatureSet>
>>>>
>>>> I am creating and passing in a query filter of "PARCEL_ID_ = '12345'"
>>>> (with
>>>> the appropriate parcel number supplied of course). I know that this
>>>> PARCEL_ID_ value exists.
>>>>
>>>> I have tried manually creating the featureset query, since I can get
>>>> the
>>>> feature id of the selected parcel. The problem with that is that mgos
>>>> uses a
>>>> base64 encoding that doesn't match php's base64_encode() output, so
>>>> that's a
>>>> no-go as well.
>>>>
>>>> Any help and suggestions are appreciated
>>>>
>>>> --
>>>> Nick
>>>>   
>>>>       
>>> _______________________________________________
>>> mapguide-users mailing list
>>> mapguide-users at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>>>
>>>
>>>     
>>
>>   
> 
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> 

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