[OpenLayers-Users] Transparent Markers

[Kalyan Kamepalli]

Atle,

The way I create my markers is exactly the same. The only thing I didn't
know is that I can create transparent icons. Do you have any idea on which
editor can create transparent icons ? Or is it possible to create them using
normal windows picture manager ??

Cheers,
Kalyan

On Thu, Aug 19, 2010 at 8:02 PM, Sveen Atle Frenvik (Geomatikk IKT) <
Atle.Frenvik.Sveen at geomatikk.no> wrote:

>  On 08/19/2010 11:48 AM, Kalyan Kamepalli wrote:
>
> I use markers.
>
>
> Well, not that I am familiar with markers, but according to:
> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Marker-js.htmlyou can use custom ghraphics for your markers as well:
>
> var size = new OpenLayers.Size(10,17);
> var offset = new OpenLayers.Pixel(-(size.w/2), -size.h);
> var icon = new OpenLayers.Icon('
> http://boston.openguides.org/markers/AQUA.png',size,offset);
> markers.addMarker(new OpenLayers.Marker(new OpenLayers.LonLat(0,0),icon));
> markers.addMarker(new OpenLayers.Marker(new
> OpenLayers.LonLat(0,0),icon.clone()));
>
> Note that if you pass an icon into the Marker constructor, it will take
> that icon and use it.  This means that you should not share icons between
> markers -- you use them once, but you should clone() for any additional
> markers using that same icon.
>
>
> So, if you make your marker transparent using your favourite graphics
> editor you should be all set.
>
> -atle
>
>
>   On Thu, Aug 19, 2010 at 7:18 PM, Sveen Atle Frenvik (Geomatikk IKT) <
> Atle.Frenvik.Sveen at geomatikk.no> wrote:
>
>>  On 08/19/2010 03:42 AM, Kalyan Kamepalli wrote:
>>
>> Is there someone to help me out in this ??
>>
>>  Can we make transparent markers ? This is really important for me as the
>> markers hiding the geometry underneath them and we don't want that to
>> happen.
>>
>>
>>  Are you using Markers or Vectors ?
>>
>> I use vectors, and then I am able to use an externalGraphic for point
>> style. This can be a .png file, with all the transparency needed..
>>
>> -atle
>>
>>  Any help is very much appreciated.
>>
>>  Thanks,
>> Kalyan
>>
>> On Wed, Aug 18, 2010 at 4:07 PM, Kalyan Kamepalli <
>> kalyan.kamepalli at gmail.com> wrote:
>>
>>> Hello group,
>>>
>>>  Currently, all my markers are sitting on top of actual map data.But, I
>>> don't want to hide the actual data.So, Is it possible to set a
>>> transparent background to marker ??
>>>
>>>  Cheers,
>>> Kalyan
>>>
>>
>>
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>>
>>
>>
>> --
>> Atle Frenvik Sveen
>> Utvikler
>> Geomatikk IKT AS
>> tlf: 45 27 86 89atle.frenvik.sveen at geomatikk.no
>>
>>
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>>
>>
>
>
> --
> Atle Frenvik Sveen
> Utvikler
> Geomatikk IKT AS
> tlf: 45 27 86 89atle.frenvik.sveen at geomatikk.no
>
>
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