[mapguide-users] vector editing

Haris Kurtagic haris at sl-king.com
Sat Oct 28 14:13:26 EDT 2006 

Hi Paul,Jason,

I see first RFC coming out of this  :) 

Haris

-----Original Message-----
From: Paul Spencer [mailto:pspencer at dmsolutions.ca] 
Sent: Saturday, October 28, 2006 8:11 PM
To: users at mapguide.osgeo.org
Subject: Re: [mapguide-users] vector editing

you lost me ... what is "command-line" COGO?

Cheers

Paul

On 28-Oct-06, at 1:40 PM, Jason Birch wrote:

> This digitising stuff sounds really cool Paul.
>
> When are you going to be adding "command-line" COGO capabilities to 
> this? :)
>
> Jason
>
>
> ________________________________
>
> From: Paul Spencer [mailto:pspencer at dmsolutions.ca]
> Sent: Sat 2006-10-28 10:26 AM
> To: users at mapguide.osgeo.org
> Subject: Re: [mapguide-users] vector editing
>
>
>
> Shailesh,
>
> I will try to put together a description of the tools and their 
> capabilities soon.  In the mean time, to satisfy curiosity, here is a 
> quick outline:
>
> The editing tools are being built on top of an application framework 
> we are building for MapGuide OS/Enterprise.  This framework is 
> tentatively known as Fusion or MapGuide Fusion.  It uses a modified 
> version of a weblayout resource to define the commands, toolbars, and 
> context menus for an application.  There are some changes to the 
> schema of the weblayout that makes it incompatible with the existing 
> ajax viewer and with Studio, so currently the weblayout has to be 
> created by hand.
>
> MapGuide Fusion uses an HTML page and a single javascript include 
> (fusion.js :)) to parse the HTML page and insert functionality based 
> on the ID of HTML elements and associated Commands from the weblayout.

> This allows much more flexibility when designing an application (you 
> can put anything anywhere), and separates code from presentation quite

> nicely.  It also compartmentalizes the code into separate pieces of 
> functionality that interoperate in a standard way to make code easier 
> to write and maintain.
>
> This toolkit is brand new, but builds on the experience DM Solutions 
> Group has with building similar toolkits around MapServer.
>
> The toolkit itself will likely be an open source project, hopefully 
> merging into the MapGuide OS project and potentially replacing the 
> existing weblayout/ajax viewer component (although there is a lot to 
> be done and to discuss before this becomes a possibility).
>
> The editing tools are part of something we are tentatively calling a 
> Light-Weight Edit capability (LWE).  They would be available as an 
> extension to MapGuide Fusion and would include a simple editing 
> application plus the actual widgets that would allow inserting editing

> into existing applications built on MapGuide Fusion.
>
> The editing capabilities include both digitizing (creating new
> features) and editing existing features in a web-based environment.
> The tools are seamlessly cross-browser compliant in Internet Explorer 
> 6/7, Firefox 1.5/2 and Safari 2.  I haven't tested in Opera, but I 
> think it will work there too.
>
> The tools generally work by creating shadow copies of feature sources 
> to prevent accidents.  There is an undo and automatic recovery 
> capability because deletes and edits are stored in the Library 
> repository rather than the Session - if you close your browser, you 
> have an opportunity to restore when you next connect.
>
> The tools work with the currently selected layer (managed by a layer 
> control), and allow you to have multiple edits on multiple layers 
> without saving.  For layers that have a single geometric type, the 
> tool automatically creates the appropriate type of geometry.  For 
> layers that have multiple types, the user is prompted to select from 
> the available types.
>
> There is a commit tool that takes existing edits and merges them back 
> into the original feature source.
>
> Because we use the Feature Service API, the editing capability is 
> independent of the provider used with the feature source ... but it 
> does have to be a vector feature source of course!
>
> For editing capabilities, we have the same basic node/segment editing 
> capabilities that you would find in most vector editing packages:
>
> * digitize/edit points, lines and polygons
> * select a node and drag to move
> * select a line segment (two nodes) and drag to move
> * shift-select to add nodes to the selection
> * delete nodes (del key)
> * insert new nodes
>
> and probably a few other features that I've forgotten.
>
> We are also building an attribute editing grid so that you can edit 
> the attributes of any selected feature (and newly created ones too).
>
> Availability: well, much of this is actually already done.  But it 
> needs a few finishing bits and pieces, and substantial testing.  My 
> current plan is to have this ready for the new year.
>
> Um ... seems like I've written a pretty good description ;)
>
> Cheers
>
> Paul
>
>
> On 28-Oct-06, at 4:24 AM, shailesh wrote:
>
>> I don't think even mapguide Enterprise has any of these capabilites 
>> either. Any one at autodesk following up this please confirm.
>> Paul can you publish / post the capabilities of the tool/s DM is 
>> developing ?
>> Eager to understand upto what extent can we go, while proposing 
>> architecture to our clients using mapguide applications and have very

>> few requirements in terms of editing maps.
>>
>>
>>
>> -Regards
>> Shailesh
>> ----- Original Message -----
>> From: Paul Spencer <pspencer at dmsolutions.ca>
>> To: <users at mapguide.osgeo.org>
>> Cc:
>> Date: Saturday, October 28 2006 12:10 AM
>> Subject: Re: [mapguide-users] vector editing Chris,
>>
>> it is possible, but there are currently no tools in the open source 
>> package that allow you access to this functionality.
>>
>> MapGuide Enterprise may contain some of this functionality, but I'm 
>> not sure.
>>
>> DM Solutions Group is working on building some of these types of 
>> tools as a commercial capability on top of MapGuide OS/Enterprise.
>> Contact me directly if you are interested in this.
>>
>> Cheers
>>
>> Paul
>>
>> On 27-Oct-06, at 11:46 AM, Chris Stewart wrote:
>>
>>> Hello
>>>
>>> Could someone tell me if it is currently possible to create a web 
>>> application that enables a client to remotely edit vector data for 
>>> their own purposes - as opposed to just being able to view data, 
>>> zoom
>> in and
>>> out and create buffers - using MapGuide Open Source, together with 
>>> either MapGuide Web Studio or Autodesk MapGuide Studio.
>>>
>>> Many thanks
>>>
>>> Chris
>>>
>>>
>>>
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>> +-----------------------------------------------------------------+
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>>
>>
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> |Paul Spencer                          pspencer at dmsolutions.ca    |
> +-----------------------------------------------------------------+
> |Chief Technology Officer                                         |
> |DM Solutions Group Inc                http://www.dmsolutions.ca/ |
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|Paul Spencer                          pspencer at dmsolutions.ca    |
+-----------------------------------------------------------------+
|Chief Technology Officer                                         |
|DM Solutions Group Inc                http://www.dmsolutions.ca/ |
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