Beautiful!
On Thu, Aug 1, 2013 at 10:34 AM, Pierre Giraud <[email protected] > wrote: > Hi all, > > I was looking for such a feature (ie. drawing arrows along line to > show direction) and looked at the several examples proposed. > I chose a different approach though. I tried to be less intrusive and > do the job in the renderer instead of adding layers or features. My > main goal was to avoid having features polutting an editing layer. > > Extending the renderers to display new elements seemed easy. > > Here's the result: http://bl.ocks.org/pgiraud/6131715 > > I didn't think about any side effects but would be happy to hear cases > where it could fail. > > What do you think? > > Pierre > > On Tue, Jan 29, 2013 at 2:14 PM, Alexandre Dubé <[email protected]> > wrote: > > Hi Hua Jie, > > > > What you did is really nice! You could contribute this by making an > > example out of it : > > > > * fork openlayers 'master' branch and clone > > * create new .html and .js in the 'examples' directory to create an > > example out of it, using the same files the other examples do. > > * add/commit/push/pull request > > > > Even though the class you created wouldn't be part of the actual core, > it > > would still demonstrate how to assemble OpenLayers core components to > > achieve this. > > > > Regards, > > > > Alexandre > > > > > > > > On 13-01-28 10:46 PM, 杨华杰 wrote: > > > > Hi All > > > > Thanks for all the help. > > > > I draft a version first. Not sure how to contribute to the lib. > > > > Here is some screenshot. > > http://www.javalinux.me/?p=681 > > > > > > Here is the demo page: > > http://www.javalinux.me/openlayer/arrow/ > > > > > > Regards, > > Hua Jie > > > > > > On Fri, Jan 25, 2013 at 6:25 PM, Arnd Wippermann <[email protected] > > > > wrote: > >> > >> Hi, > >> > >> may be this examples can help: > >> > >> approach like Imran described > >> > >> > http://gis.ibbeck.de/ginfo/apps/OLExamples/OL210/Line_Direction/direction_arrow.asp > >> > >> > >> > http://gis.ibbeck.de/ginfo/apps/OLExamples/OL212/Direction_Vectors/rotation_of_simple_direction_vectors.asp > >> > >> > >> Arnd > >> > >> ________________________________ > >> Von: [email protected] > >> [mailto:[email protected]] Im Auftrag von ??? > >> Gesendet: Freitag, 25. Januar 2013 05:06 > >> An: Imran Rajjad > >> Cc: [email protected] > >> Betreff: Re: [OpenLayers-Users] How to draw a arrow with openlayer? > >> > >> Hi Guys > >> > >> I got some process. > >> > >> But I have a problem to draw with the mouse, during the drawing, I can > see > >> the angle. But when I double click, the angle gone. Any tips will help. > >> > >> > >> Regards, > >> Hua Jie > >> > >> > >> On Thu, Jan 24, 2013 at 10:01 AM, 杨华杰 <[email protected]> wrote: > >>> > >>> Hi Imran > >>> > >>> Thanks for your reply. I believe a lot people have the same questions. > >>> Why this feature is not released. > >>> > >>> > >>> Regards, > >>> Hua Jie > >>> > >>> > >>> On Wed, Jan 23, 2013 at 10:28 PM, Imran Rajjad <[email protected]> > wrote: > >>>> > >>>> Hi, > >>>> > >>>> you can make a feature whose geometry is a GeometryCollection, this > >>>> collection can contain a line and a point grouped into one geometry > then you > >>>> can use the below mentioned style to draw an arrow with your line > >>>> > >>>> > >>>> { > >>>> strokeColor: "#00688B", > >>>> fillColor: "#00688B", > >>>> fillOpacity : 1.0, > >>>> strokeWidth: 2, > >>>> strokeOpacity : 0.9, > >>>> pointRadius: 6, > >>>> graphicName :"triangle", > >>>> rotation :angle > >>>> } > >>>> > >>>> remember to compute the angle before setting this .. you should be > able > >>>> to calculate angle between start and end point of your line segment.. > and > >>>> also the position of point geometry which will be drawn as triage > with given > >>>> rotation angle.. > >>>> > >>>> Hope I got my point through.. > >>>> > >>>> regards, > >>>> Imran > >>>> > >>>> On Wed, Jan 23, 2013 at 7:11 PM, 杨华杰 <[email protected]> wrote: > >>>>> > >>>>> Hi Alexandre > >>>>> > >>>>> Thank you, I will try this. > >>>>> > >>>>> > >>>>> Regards, > >>>>> Hua Jie > >>>>> > >>>>> > >>>>> On Wed, Jan 23, 2013 at 10:01 PM, Alexandre Dubé <[email protected] > > > >>>>> wrote: > >>>>>> > >>>>>> Hi Hua Jie, > >>>>>> > >>>>>> You could try to define your own arrow symbol. There's one defined > >>>>>> [here], see line 1 : > >>>>>> OpenLayers.Renderer.symbol.arrow = [0,2, 1,0, 2,2, 1,0, 0,2] > >>>>>> > >>>>>> I haven't tried it, but it could do the trick. > >>>>>> > >>>>>> HTH, > >>>>>> > >>>>>> Alexandre > >>>>>> > >>>>>> [here] > >>>>>> > http://code.google.com/p/rep-olnet/source/browse/trunk/Direction.js?r=61 > >>>>>> > >>>>>> > >>>>>> > >>>>>> On 13-01-23 07:09 AM, 杨华杰 wrote: > >>>>>> > >>>>>> Hi > >>>>>> > >>>>>> As the title > >>>>>> > >>>>>> I know how to draw a line, dot, polygon. But my customer need some > >>>>>> directions on the map > >>>>>> > >>>>>> > >>>>>> Regards, > >>>>>> Hua Jie > >>>>>> > >>>>>> > >>>>>> _______________________________________________ > >>>>>> Users mailing list > >>>>>> [email protected] > >>>>>> http://lists.osgeo.org/mailman/listinfo/openlayers-users > >>>>>> > >>>>>> > >>>>>> > >>>>>> -- > >>>>>> Alexandre Dubé > >>>>>> Mapgears > >>>>>> www.mapgears.com > >>>>>> > >>>>>> > >>>>>> _______________________________________________ > >>>>>> Users mailing list > >>>>>> [email protected] > >>>>>> http://lists.osgeo.org/mailman/listinfo/openlayers-users > >>>>>> > >>>>> > >>>>> > >>>>> _______________________________________________ > >>>>> Users mailing list > >>>>> [email protected] > >>>>> http://lists.osgeo.org/mailman/listinfo/openlayers-users > >>>>> > >>>> > >>>> > >>>> > >>>> -- > >>>> I.R > >>> > >>> > >> > > > > > > > > _______________________________________________ > > Users mailing list > > [email protected] > > http://lists.osgeo.org/mailman/listinfo/openlayers-users > > > > > > > > -- > > Alexandre Dubé > > Mapgears > > www.mapgears.com > > > > > > _______________________________________________ > > Users mailing list > > [email protected] > > http://lists.osgeo.org/mailman/listinfo/openlayers-users > > > > > > -- > Pierre GIRAUD > Géomaticien, Analyste > > Camptocamp France SAS > Savoie Technolac, BP 352 > 73377 Le Bourget du Lac, Cedex > > Tel : 00 33 4 79 44 44 93 > Mail : [email protected] > http://www.camptocamp.com > _______________________________________________ > Users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/openlayers-users >
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