[OpenLayers-Dev] Question: Vector layer with draw & modify feature

[Alexandre Dube]

Hi Moiz,

   BTW, this thread would have been more suitable for the "users" 
mailing list.

   Take a look at the "TransformFeature" control [1].  It might just be 
the right tool for you.

Regards,

Alexandre

[1] http://www.openlayers.org/dev/examples/transform-feature.html


On 10-09-15 03:11 PM, Moiz Bhukhiya wrote:
> Thank you so much Alexandre for your response. You are absolutely 
> right, it is working now as it should. But I have one more question. 
> Is there a way to resize it from all four corners, I don't need to 
> keep the aspect ratio. I would like to resize the box like a cropping 
> tool( http://odyniec.net/projects/imgareaselect/ ). I am also having 
> another problem. When I assign {displayClass: 
> "olControlDrawFeaturePoint"} to modifyFeature, it doesn't give 
> strictly horizontally aligned rectangles. I can draw rectangles in 
> that case but they form an angle.
>
> I'd really appreciate any of your help.
>
> Thanks,
> Moiz
> On Wed, Sep 15, 2010 at 7:24 AM, Alexandre Dube <adube at mapgears.com 
> <mailto:adube at mapgears.com>> wrote:
>
>     Hi Moiz,
>
>       The constructor of the control only takes 2 parameters [1] and
>     you give it 3.  This might be why it doesn't work.
>
>     Regards,
>
>     Alexandre
>
>
>     [1]
>     http://dev.openlayers.org/releases/OpenLayers-2.10/doc/apidocs/files/OpenLayers/Control/ModifyFeature-js.html#OpenLayers.Control.ModifyFeature.OpenLayers.Control.ModifyFeature
>
>
>
>     On 10-09-15 05:32 AM, Moiz Bhukhiya wrote:
>>     Hi,
>>
>>     I am using vector (polygon) layer with draw feature and modify
>>     feature. Let me explain first what I am trying to achieve. I want
>>     to draw rectangles(strict horizontally aligned) and after drawing
>>     it might require a little bit of modification but again it
>>     shouldn't lose its shape.
>>
>>     Here is what I tried doing:
>>
>>     polygonLayer = new OpenLayers.Layer.Vector("Capture Region",
>>     {displayInLayerSwitcher: true, reproject: true});
>>             polyOptions = {sides: 4, snapAngle: 180, irregular:
>>     true}; //To draw only rectangles
>>             var pan = new OpenLayers.Control.Navigation({title:
>>     "Navigate"})
>>             polygonControl = new
>>     OpenLayers.Control.DrawFeature(polygonLayer,
>>     OpenLayers.Handler.RegularPolygon,
>>                 {handlerOptions: polyOptions});
>>             modify = new OpenLayers.Control.ModifyFeature(
>>                     polygonLayer, {displayClass:
>>     "olControlModifyFeature", title: "Modify Features"},
>>                     {mode: ~OpenLayers.Control.ModifyFeature.RESHAPE
>>     | OpenLayers.Control.ModifyFeature.RESIZE
>>                     | OpenLayers.Control.ModifyFeature.DRAG }
>>                 );
>>             var panel = new OpenLayers.Control.Panel({
>>                  displayClass: "olControlEditingToolbar"
>>             });
>>             panel.addControls([pan, polygonControl, modify]);
>>             map.addControl(panel);
>>
>>     The problem is it doesn't follow the modify feature modes I have
>>     defined. It allows reshaping and doesn't allow dragging and
>>     resizing. Another problem I have is when I define the
>>     displayClass for draw feature, it wouldn't let me draw rectangles
>>     that are horizontally aligned. To point your attention towards
>>     where I might be making a mistake, I am using
>>     OpenLayers.Handler.RegularPolygon to draw feature. Is that a problem?
>>
>>     Thanks a lot for taking time to read my problem and I'd really
>>     appreciate if you could help me with any suggestions and ideas.
>>
>>     Thanks!
>>     Moiz
>>
>>
>>     _______________________________________________
>>     Dev mailing list
>>     Dev at lists.osgeo.org  <mailto:Dev at lists.osgeo.org>
>>     http://lists.osgeo.org/mailman/listinfo/openlayers-dev
>>        
>
>
>     -- 
>     Alexandre Dubé
>     Mapgears
>     www.mapgears.com  <http://www.mapgears.com>
>          
>
>
>     _______________________________________________
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>
>


-- 
Alexandre Dubé
Mapgears
www.mapgears.com

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