[Chameleon] KeyMap question

Fri Jan 27 18:07:28 EST 2006

sorry, javascript Document Object Model.  If you switched to using  
the regular KeyMap widget, you could get it to work with the drawmap  
hack.  Perhaps if I understood what you are trying to achieve I could  
help more?

Cheers

Paul

On 27-Jan-06, at 4:55 PM, Sears, Jeremy wrote:

> hmmm,
> So am I correct to assume then that coaxing chameleon to produce an  
> image on
> disk that contains my keymap + extent rectangle would involve more  
> than
> simply modifying a line or two of code?
>
> What's the DOM?
>
> Thanks
> Jeremy
>
>
> -----Original Message-----
> From: Paul Spencer [mailto:pspencer at dmsolutions.ca]
> Sent: January 27, 2006 4:49 PM
> To: Sears, Jeremy
> Cc: 'chameleon at lists.maptools.org'
> Subject: Re: [Chameleon] KeyMap question
>
>
> OOOHHHHHH ... you are using KeyMapDHTML!!!  It just takes a copy of
> the reference map and uses the DOM to create the red extents, so the
> traditional reference map stuff is never used.  The image is never
> changed.
>
> Cheers
>
> Paul
>
>
> On 27-Jan-06, at 3:58 PM, Sears, Jeremy wrote:
>
>> Hi Paul,
>> Thanks for you continued attention.
>>
>>>> Is it possible that this never gets executed and the thread of
>>>> execution goes elsewhere?
>>
>> As far as I can tell, This may be the case. When I remove
>> 'drawmap.php'
>> entirely and fire up my app, the keymap still draws, however my
>> main map
>> does not. Furthermore, the keymap is still 'functional' in this
>> situation,
>> in that I can define a extent box to which the main map would  
>> zoom, if
>> 'drawmap.php' were present.
>>
>> Also, I have tinkered with the following widgets by inserting a line
>> simmilar to:
>> $_SESSION['testvar']= "setfromkeymapDHTML";
>> those widgets are : Keymap, KeymapDHTML, and KeyMapDHTMLmode
>> $_SESSION['testvar'] only get assigned a value from 'keymapDHTML' and
>> 'KeymapDHTMLmode', not from 'keymap', nor does $_SESSION['testvar']
>> get
>> assigned when inserted in various places in 'drawmap.php'.
>>
>>
>>>>  Also, is the image being saved in some
>>>>  other location entirely?
>>
>> As far as I can tell, no. However Its possible I just cant find it.
>> The
>> source of my keymap image is a small gif of the entire extent of my
>> geographic area of interest. It is defined in the map file as  
>> follows:
>>
>> ##################################################################### 
>> #
>> ###
>> # Reference map
>> #
>> REFERENCE
>>    IMAGE images/keymap.gif
>>    EXTENT -2594561 -712631 3467361 3840000
>>    STATUS ON
>>   COLOR -1 -1 -1
>>   OUTLINECOLOR 255 0 0
>>   SIZE 120 90
>> END
>>
>> Does Chameleon happen to save temp images somewhere in its own
>> folders? Ive
>> looked around but cannot find an image resembling the keymap?
>>
>> Can you recommend any further 'tests' or changes to the code I
>> could make
>> that would shed more light on what's going on with my keymap? I'm
>> beggining
>> to think that Chameleon is only drawing an extent rectangle over-
>> top of my
>> keymap rather that generating the keymap and extent rectangle as
>> one image.
>> Is this a possibility?
>>
>> Thanks
>> Jeremy
>>
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Paul Spencer [mailto:pspencer at dmsolutions.ca]
>> Sent: January 27, 2006 3:24 PM
>> To: Sears, Jeremy
>> Cc: 'chameleon at lists.maptools.org'
>> Subject: Re: [Chameleon] KeyMap question
>>
>>
>> Is it possible that this never gets executed and the thread of
>> execution goes elsewhere?  Also, is the image being saved in some
>> other location entirely?  Chameleon may be changing the imagepath
>> from the mapfile setting and you wouldn't know it.
>>
>> Cheers
>>
>> Paul
>>
>> On 27-Jan-06, at 1:45 PM, Sears, Jeremy wrote:
>>
>>> Hi Paul,
>>> I am picking over 'drawmap.php'. There is a function defined in
>>> drawmap.php
>>> that is also called in drawmap.php named 'DrawKeyMap()'. Near the
>>> end of the
>>> function are the following lines:
>>>
>>> /*
>>> --------------------------------------------------------------------
>>> *
>>> /
>>> /*      draw the image and output
>>> it.                                   */
>>> /*
>>> --------------------------------------------------------------------
>>> *
>>> /
>>>       //  $imgObj = $oMapSession->oMap->drawReferenceMap();
>>>
>>>       //  $szWebImage = $imgObj->saveWebImage();
>>>
>>> ...(lines 1408 thru 1413)...
>>>
>>> You have to excuse me but Im in the process of learning php. It
>>> appears to
>>> me that by uncommenting the two lines there, the keymap should be
>>> created
>>> ($imgObj) and the location of the keymap should be then stored in
>>> ($szWebImage).
>>>
>>> I have uncommented the two lines however I dont see the keymap
>>> image in my
>>> tmp folder. Also, it would seem that nothing gets written to the
>>> $szwebImage
>>> variable.
>>>
>>> Have I overlooked other parts of drawmap.php that are relavent to
>>> my task?
>>> Why does uncommenting the two above mentioned lines of code
>>> seemingly have
>>> no effect?
>>>
>>> Thanks
>>> Jeremy
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: Paul Spencer [mailto:pspencer at dmsolutions.ca]
>>> Sent: January 27, 2006 12:16 PM
>>> To: Sears, Jeremy
>>> Cc: 'chameleon at lists.maptools.org'
>>> Subject: Re: [Chameleon] KeyMap question
>>>
>>>
>>> Jeremy, the image is returned from drawmap.php.  You can modify
>>> drawmap.php to save the image as well as/instead of just returning
>>> it.
>>>
>>> Cheers
>>>
>>> Paul
>>>
>>> On 27-Jan-06, at 12:03 PM, Sears, Jeremy wrote:
>>>
>>>> Good Day All,
>>>> Im wondering how one would go about coaxing chameleon to produce a
>>>> keymap
>>>> image on disk. I've been looking around in the KeyMap, KeymapDHTML
>>>> and
>>>> KeymapDHTMLmode widgets for a means to do this but nothing is
>>>> jumping out at
>>>> me.
>>>>
>>>> Ideally, an image of my keymap would be produced the same manner
>>>> that the
>>>> image of my scalebar is produced.
>>>>
>>>> It looks to me that the keymap widgets create the image on the fly
>>>> via calls
>>>> to mapserver, and don't actually store the image.
>>>>
>>>> Can anyone offer general or specific steps I should consider to
>>>> accomplish
>>>> this?
>>>>
>>>> Thanks
>>>> Jeremy
>>>>
>>>> _______________________________________________
>>>> Chameleon mailing list
>>>> Chameleon at lists.maptools.org
>>>> http://lists.maptools.org/mailman/listinfo/chameleon
>>>>
>>>
>>> +-----------------------------------------------------------------+
>>> |Paul Spencer                           pspencer at dmsolutions.ca   |
>>> +-----------------------------------------------------------------+
>>> |Applications & Software Development                              |
>>> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
>>> +-----------------------------------------------------------------+
>>>
>>>
>>>
>>> _______________________________________________
>>> Chameleon mailing list
>>> Chameleon at lists.maptools.org
>>> http://lists.maptools.org/mailman/listinfo/chameleon
>>>
>>
>> +-----------------------------------------------------------------+
>> |Paul Spencer                           pspencer at dmsolutions.ca   |
>> +-----------------------------------------------------------------+
>> |Applications & Software Development                              |
>> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
>> +-----------------------------------------------------------------+
>>
>>
>>
>> _______________________________________________
>> Chameleon mailing list
>> Chameleon at lists.maptools.org
>> http://lists.maptools.org/mailman/listinfo/chameleon
>>
>
> +-----------------------------------------------------------------+
> |Paul Spencer                           pspencer at dmsolutions.ca   |
> +-----------------------------------------------------------------+
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
> +-----------------------------------------------------------------+
>
>
>
>

+-----------------------------------------------------------------+
|Paul Spencer                           pspencer at dmsolutions.ca   |
+-----------------------------------------------------------------+
|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
+-----------------------------------------------------------------+