Re: creating new OMGraphic ...

Hi Christophe,

On Tuesday, October 1, 2002, at 12:31 PM, Christophe Turbout wrote:

> Don Dietrick writes:
>> Hi Christphe,
>>
>> Check to make sure you are setting the projection in your layer.
>> getProjection() may be returning null if it is not being set. You can
>> call setProjection(ProjectionEvent) in the layer.projectionChanged()
>> method.
>
> you're right ! many thanks. I don't understand why some OMGraphics
> built in the layer can be displayed before ... that's another story ...
>
> I have another problem.
>
> I have to find all OMGraphic which intersect an area (rectangle or
> circle).

You'll want to check out the com.bbn.openmap.omGraphics.FilterSupport
object, it does this.

- Don

>> On Tuesday, October 1, 2002, at 09:29 AM, Christophe Turbout wrote:
>>
>>>
>>> hi,
>>>
>>> I've solve my last problem (Disabling dragging feature, return false
>>> instead of true (my BUG)), but I'have a new one
>>>
>>> In FAQ or API, builduing OMGraphic needs first to create it, second
>>> to
>>> generate it and third to render it.
>>>
>>> The trouble come from generate method which return ALWAYS false !!!
>>>
>>>
>>>
>>> here is my paint method :
>>>
>>> public void paint(Graphics g) {
>>>
>>> // an OMGraphic List from another part of the layer
>>> OMGraphicList omgl = getOMGraphic(getProjection());
>>>
>>> if (omgl!=null) {
>>> OMCircle circle = new OMCircle(46f,-5f,10,10);
>>> circle.setRotationAngle(90);
>>> circle.setLinePaint(Color.green);
>>>
>>> if (circle.generate(getProjection())) {
>>> System.out.println("circle created");
>>> omgl.add(circle);
>>> }
>>> else System.out.println("can't create circle");
>>>
>>> omgl.render(g);
>>> }
>>> }
>>>
>>> any idea ???
>>>
>>> --
>>> Christophe Turbout tel : +33 (0)2 31 56 72 43
>>> CERTIC, GREYC Info fax : +33 (0)2 31 56 73 30
>>> Université de Caen icq : 125927589
>>> Campus II - S3-360 http://certic.info.unicaen.fr
>>> Bd M. Juin - BP 5186 http://www.info.unicaen.fr/~turbout/
>>> F 14032 CAEN CEDEX email : Christophe.Turbout@info.unicaen.fr
>>>
>>> --
>>> [To unsubscribe to this list send an email to "majdart@bbn.com"
>>> with the following text in the BODY of the message "unsubscribe
>>> openmap-users"]
>>>
>>>
>>
>>
>> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>> Don Dietrick, BBN Technologies, dietrick@bbn.com
>> 10 Moulton Street, Cambridge, MA 02138
>> 617-873-3031 [fax]-2794
>> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>>
>>
>
> --
> Christophe Turbout tel : +33 (0)2 31 56 72 43
> CERTIC, GREYC Info fax : +33 (0)2 31 56 73 30
> Université de Caen icq : 125927589
> Campus II - S3-360 http://certic.info.unicaen.fr
> Bd M. Juin - BP 5186 http://www.info.unicaen.fr/~turbout/
> F 14032 CAEN CEDEX email : Christophe.Turbout@info.unicaen.fr
>
>

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Don Dietrick, BBN Technologies, dietrick@bbn.com
10 Moulton Street, Cambridge, MA 02138
617-873-3031 [fax]-2794
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

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