[mapguide-users] Creating and adding layers

[oshan]

Hi Kenneth 

I managed to get a student version of ArcGIS. I created a tiff and a world
file after using some PNG map images. I placed the two generated files into
a single folder and imported it using maestro. After defining the layers and
map and setting up the extent I was able to preview it on mapguide. 

I looked in the FdoGdalNotes for the plugin
(http://home.gdal.org/dl/gdal14_vc8/) but the links doesn't work. In any
case I'm able to view the images so maybe all the plugins are in place in my
installation!

I wanted to add a layer on top of this map (by the way this a map of
Queensland, Australia). This new layer is going to be some rural region
within the state. I cut out this region from the original map (base map) and
created a separate image with just that rural area surrounded with
transparent background so that if I superimpose them it will appear at the
right location on the base map. I created a new layer for this image using
the same procedure I describe before. Only problem is the tiff format didn't
recognise transparency and made the background white. So when I place the
small region above the state only thing I can see is that!

So now I'm wondering...: if my application is not going to handle any
geospatial vector data, am I making it harder for my self by using MG os?? I
mean I would be able to use normal HTML,css,js, and jsp to do this. I could
use the z index in css to put bunch of images together and use js to turn
them on and off. But of course I will have to do the zooming, paning,
context menus, toolbars etc from scratch so I don't know if I will hit the
brick wall somewhere down the track! 


Kenneth Skovhede, GEOGRAF A/S wrote:
> 
> Rasters are notoriously difficult to get to work.
> 
> First of, you need to run the server from the console with the
> CPL_DEBUG=on:
> http://trac.osgeo.org/fdo/wiki/FdoGdalNotes
> (See at the bottom of the page).
> 
> And you have to create the gdalplugin folder yourself, so you get the 
> file layout
> as described on FdoGdalNotes page.
> 
> Your MapDefinition coordinate system and raster coordinate system MUST 
> match 100%.
> 
> Also look in the error log file:
> C:\Program Files\MapGuideOpenSource2.0\Server\Logs\Error.log
> 
> For a free vector editor, try Kosmo GIS:
> http://www.opengis.es/
> 
> Good luck!
> 
> Regards, Kenneth Skovhede, GEOGRAF A/S
> 
> 
> 
> oshan skrev:
>> By the way I'm using mapguide os 2.0 with jsp extension. does this come
>> with
>> the GDAL plugin to handle all the raster data? I checked in my bin folder
>> and there is no gdalplugins folder! But inside FDO I have a file called
>> gdal14.dll. If this is not enough where do I get this full plugin from
>> and
>> which version. The version of the gdal14.dll is 1.4.3.0
>>
>> cheers 
>>
>>
>>
>> oshan wrote:
>>   
>>> Hi Kenneth 
>>>
>>> Thanks for you reply. I'm basically trying to get a map displayed in the
>>> ajax viewer and the map I'm planning to use is a raster image.
>>>
>>> I tried doing it using map guide maestro but I couldn't get the image
>>> displayed. I tnk its something to do with the coordinate system may be
>>> its
>>> way off the screen.
>>>
>>> I was looking at GDAL and found this link. It kind shows how to add
>>> coordinate to raster image. I'll try that and see if it works.
>>> http://trac.osgeo.org/gdal/wiki/UserDocs/RasterProcTutorial
>>>
>>> By the way do you mean data files like .shp? what is a good free client
>>> I
>>> used to create such data? 
>>>
>>> Thanks
>>>
>>>
>>>
>>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>>     
>>>> There is a short (incomplete) guide here that explains the procedure 
>>>> from a users viewpoint:
>>>> http://trac.osgeo.org/mapguide/wiki/maestro/UserGuide
>>>>
>>>> If you have MapGuide Enterprise, you can get Studio for free, which has 
>>>> a manual in the "Help" menu.
>>>>
>>>> If you need to create data as well, you need a GIS client application, 
>>>> such as Autocad Map, ArcGIS or MapInfo.
>>>> (There are free clients avalible as well)
>>>>
>>>> Your question is a bit vague, so if this is an answer to another 
>>>> question, can you explain your current setup?
>>>>
>>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>>
>>>>
>>>>
>>>> oshan skrev:
>>>>       
>>>>> Hi
>>>>>
>>>>> I want to know how to create layers? 
>>>>>
>>>>> Say that you have a map and you want to create layers for political
>>>>> divisions. How would you go about doing this?
>>>>>
>>>>> I ask this before but I didn't get any answer. My apologies if its a
>>>>> stupic
>>>>> question! Since I don't really have any good vectored based maps, is
>>>>> it
>>>>> possible to use a jpeg as a base image? How do I achieve this?
>>>>>
>>>>> I appreciate any help
>>>>> Thanks
>>>>>   
>>>>>         
>>>> _______________________________________________
>>>> 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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