[Chameleon] What does chameleon do?

[pxniw pxniw]

Well for some reason I was not on the chameleon list,
so some of my questions did not show up.

Anyhow, it should be working now.
I got below sample to work, but still had some
problems with Labels. (Labels won't show, and confused
what the correct syntax should be.)

([$Shared_resource_name.first_element.second_element.etc...])

LABEL="Restaurant name: [$MyResult.Restaurant_name]"/>
But still it won't work.
(Restaurant_name is name of the column in mysql db)

Question #2

Where do I see the values currently held with
SharedResource? Or is it held in the memory?

Question #3

What is good way of debugging when trying things out
with Chameleon?

Thanks a bunch. Rolling up my sleeves and ready to
roll ;)

Px

--- Julien-Samuel Lacroix <lacroix@dmsolutions.ca>
wrote:
> Hi,
> 
> I fact, he SQLQuery widget can do this, but you
> should use it in 
> combination with the MapImageSharedResource widget 
>
(http://www.maptools.org/chameleon/wiki/MapImageSharedResource).
> 
> The SQLQuery widget take a result from an SQL query
> and put it in a 
> shared resource
>
(http://www.maptools.org/chameleon/wiki/SharedResource).
> 
> A shared resource will be a kind of container for
> your data here. Then 
> you can use the MapImageSharedResource widget to add
> point in your map. 
> Note that your shared resource must contains a
> latitude and a longitude 
> column.
> 
> Here's a little example because I know that's a
> little bit cryptic for 
> newbies. Don't hesitate to ask more question if you
> need and try 
> multiple possibility  with these two widget this
> will help you to 
> understand them.
> 
> First of all, you should include the SQLQuery widget
> in your template.
> 
> <CWC2 Type="SQLQuery" SharedResourceName="MyResult"
> SQLQuery="SELECT * 
> FROM table WHERE type='restaurant'"
> Server="localhost" 
> Database="MyDatabase"/>
> 
> This widget will take all the restaurant from your
> database and put it 
> in the Shared Resource called "MyResult".
> 
> Then, where you want your map, you should include
> the 
> MapImageSharedResource widget:
> 
> <CWC2 TYPE="MapImageSharedResource" name="main_map"
> Width="300" 
> Height="275" Navigable="false">
>    <POINTS NAME="START" SRNAME="MyResult"
> SRLATCOL="lati" 
> SRLONCOL="long" LABEL="Restaurant name:
> [$GeocodeResult.name]"/>
> </CWC2>
> 
> This widget will draw a map (300x275 large) that you
> could not navigate. 
> In this map, there will be the points in the
> MyResult Shared Resource 
> (Created by the SQLQuery widget). And this points
> will be placed in the 
> map with the lat/lon defined in the SQL table
> columns called "lati" and 
> "long". Finally, on each point there will be a label
> "Restaurant name: 
> the_name_column_in_your_SQL_table".
> 
> If you want to put a Pin marker instead of a red
> dot, you will need to 
> add a MAP parameter in your widget:
> 
> <CWC2 TYPE="MapImageSharedResource" name="main_map"
> Width="300" 
> Height="275" Navigable="false">
>    <POINTS NAME="REST" SRNAME="MyResult"
> SRLATCOL="latitude" 
> SRLONCOL="longitude" LABEL="Restaurant name:
> [$GeocodeResult.name]"/>
>    <MAP POINT="REST" TYPE="style" PARAM="symbolname"
> 
> VALUE="markers/pin.png"/>
>    <MAP POINT="REST" TYPE="style" PARAM="size"
> VALUE="25"/>
>    <MAP POINT="REST" TYPE="label" PARAM="color"
> VALUE="00FF00"/>
> </CWC2>
> 
> This will change the symbol used for the symbol
> markers/pin.png. The 
> size will be 25 pixels and the color of the label on
> it will be green 
> (RGB = 00FF00). You could change most (if not all)
> of the parameters of 
> the layer that can be changed with php/mapscript
> with this widget. For 
> other parameters check
>
http://mapserver.gis.umn.edu/doc40/mapfile-reference.html#layer
> 
> Hope this will help.
> 
> Cheers,
> 
> Julien
> 
> 
> Paul Spencer wrote:
> > Hi,
> > 
> > don't have time to respond properly for a few days
> given the holidays, 
> > but I don't think the SQLQuery widget will do what
> you want, but it 
> > should be possible to do it with mapserver and ogr
> using virtual 
> > datasources ... will discuss when I have time.
> > 
> > Cheers,
> > 
> > Paul
> > 
> > pxniw pxniw wrote:
> > 
> >> Thanks this cleared up things a bit.
> >> Basically its copy and Paste type of environment
> >> rather than swyg system. Ie if I want to add
> something
> >> for the sample file, I would add "<CWC> some
> widget
> >> here <CWC>" to sample html file.
> >>
> >> Ok going for more advanced stuff:
> >> I noticed that Chameleon will handle MySQL?
> >> Found this:
> >> http://www.maptools.org/chameleon/wiki/SQLQuery
> >>
> >> Is this able to do this?
> >>
> >> I have php and perl scripts working for mapserver
> with
> >> Chameleon and MapLab.
> >> I also have some other data in MySQL database.
> >> Tables have info like:
> RestaurantName;City;Lat;Lon
> >>
> >> How do I query either in PHP or Perl
> RestaurantName
> >> and provide a Pin Label (Marker) for Lat Lon
> >> coordinates on my existing mapserver layout for
> single
> >> restaurant?
> >>
> >> Ie: I have a map of Georgia displayed. User have
> >> options to type city in text box (ie Atlanta),
> and hit
> >> Go button.
> >>
> >> How do I query the MySQL db and show restaurant
> >> locations in existing map?
> >>
> >> Thank You for all of who have provided their time
> for
> >> these projects, I will try to do the same, once I
> >> learn things a bit more.
> >> Happy Holidays
> >>
> >>
> >> --- Bart van den Eijnden <bartvde@xs4all.nl>
> wrote:
> >>
> >>> Hi,
> >>>
> >>> basically Chameleon is being fed a HTML template
> >>> with special tags in it, you can recognize them
> by "CWC". A zoom-in 
> >>> tool for
> >>> instance is a widget and is recognized by the
> CWC in the HTML template.
> >>> The basic unit of Chameleon is the widget, the
> HTML template is a
> >>> collection of widgets.
> >>>
> >>> Chameleon interprets this template and creates
> HTML
> >>> and javascript, which will turn into a
> full-featured web mapping client.
> >>>
> >>> Also, it needs to know which map layers to draw,
> >>> that's the second configuration element, so
> always a Mapserver MAP
> >>> file which you can create with Maplab if you
> want (or a Web Map Context
> >>> document, but this is harder), is needed.
> >>>
> >>> In the index.phtml of your sample application
> both
> >>> the HTML template and the MAP file are linked.
> This is specific for
> >>> Chameleon 1.1 and was different in Chameleon 1.0
> (which had a service
> >>> instance which interpreted templates instead of
> one application per HTML
> >>> template/MAP file combination).
> 
=== message truncated ===


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