[OpenLayers-Dev] Question: Vector layer with draw & modify feature
Alexandre Dube
adube at mapgears.com
Wed Sep 15 08:24:20 EDT 2010
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
>
>
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>
--
Alexandre Dubé
Mapgears
www.mapgears.com
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