[OpenLayers-Users] Drawing a point feature with image and background color..

Fri Feb 17 13:08:17 EST 2012

Ok Carlos.. I'll take a look.. Thanks a lot!

2012/2/17 Carlos Krefft <ckrefft at rsmas.miami.edu>

> ** **
>
> You can create two images for your features one with background color red
> and one with green. Then switch the graphics dynamically.****
>
> ** **
>
> If (I need redbackground){****
>
>        myfeatureStyle.externalGraphic: imgRedBackground;****
>
> ** **
>
> }else{****
>
>       myfeatureStyle.externalGraphic: imgGreenBackground;****
>
> }****
>
> ** **
>
> OR:****
>
>        ****
>
> You can also not use graphics and use the basic feature point symbology
> such as a circle, square, X and so on. This way you can change the color
> dynamically to any color you want without having premade graphic images
> made out.****
>
> ** **
>
> This is an example of two point features symbolized as circles with a
> numeric label. (no externalGraphic).****
>
> ****
>
> ** **
>
> ** **
>
> ** **
>
> *From:* jkm [mailto:rifins at gmail.com]
> *Sent:* Friday, February 17, 2012 12:53 PM
>
> *To:* Carlos Krefft
> *Cc:* users at openlayers.org
> *Subject:* Re: [OpenLayers-Users] Drawing a point feature with image and
> background color..****
>
> ** **
>
> Ohps sorry! You are right! I made a confusing question.. ****
>
> ** **
>
> What I would like.. is draw only one feature.. ****
>
> This feature should represent the kind of item (represented by the
> externalGraphic) and how much critical is the item (represented by
> background color from green to red).. ****
>
> ** **
>
> By now, i'm drawing in two separate features on the same position (One
> with externalgraphic, and the other with fillColor).. But I'm doing in this
> way, because i can't find the way to draw a unique feature..****
>
> ** **
>
> You can see that my english is not as good as i would like..  :)****
>
> ** **
>
> Thanks again..!****
>
> ** **
>
> ** **
>
> ** **
>
> ** **
>
> 2012/2/17 Carlos Krefft <ckrefft at rsmas.miami.edu>****
>
> “I'm drawing features with images defined by the externalGraphic
> property.. Then.. I can't use the fillColor.. ?”****
>
>  ****
>
> You cannot use fillColor with an externalGraphic as it says in the
> documentation . But your original question states you will be using TWO
> features “I'm drawing two elements in the same position”.****
>
>  ****
>
> So use fillColor for your background feature and externalGraphic for your
> foreground feature.****
>
>  ****
>
> “Or is there any other way to draw the feature withous using
> externalGraphic?”****
>
>  ****
>
> Yes, you can simply omit the externalGraphic and the feature will draw
> without the a graphic, just with the style.****
>
>  ****
>
> Carlos K.****
>
>  ****
>
>  ****
>
>  ****
>
> *From:* jkm [mailto:rifins at gmail.com]
> *Sent:* Friday, February 17, 2012 12:08 PM
> *To:* Carlos Krefft
> *Cc:* users at openlayers.org
> *Subject:* Re: [OpenLayers-Users] Drawing a point feature with image and
> background color..****
>
>  ****
>
> Uhm..****
>
>  ****
>
> But.. as seen in this link..****
>
> http://docs.openlayers.org/library/feature_styling.html ****
>
>  ****
>
> "fillColor****
>
> Default is #ee9900. This is the color used for filling in Polygons. It is
> also used in the center of marks for points: the interior color of circles
> or other shapes. It is not used if an externalGraphic is applied to a
> point."****
>
>  ****
>
> I'm drawing features with images defined by the externalGraphic property..
> Then.. I can't use the fillColor.. ?****
>
>  ****
>
> Or is there any other way to draw the feature withous using
> externalGraphic?****
>
>  ****
>
> Thanks...****
>
>  ****
>
>  ****
>
> 2012/2/17 Carlos Krefft <ckrefft at rsmas.miami.edu>****
>
> Here are the possible values:****
>
>  ****
>
> http://docs.openlayers.org/library/feature_styling.html#style-properties**
> **
>
>  ****
>
>  ****
>
>  ****
>
> *From:* openlayers-users-bounces at lists.osgeo.org [mailto:
> openlayers-users-bounces at lists.osgeo.org] *On Behalf Of *Carlos Krefft
> *Sent:* Friday, February 17, 2012 11:40 AM
> *To:* 'jkm'; users at openlayers.org
> *Subject:* RE: [OpenLayers-Users] Drawing a point feature with image and
> background color..****
>
>  ****
>
> Use fillColor.****
>
> …****
>
> fillColor: "#FF5500",****
>
> fillOpacity: 0.7,****
>
> …****
>
>  ****
>
> Carlos K.****
>
>  ****
>
>  ****
>
> *From:* openlayers-users-bounces at lists.osgeo.org
> [mailto:openlayers-users-bounces at lists.osgeo.org] *On Behalf Of *jkm
> *Sent:* Friday, February 17, 2012 5:58 AM
> *To:* users at openlayers.org
> *Subject:* [OpenLayers-Users] Drawing a point feature with image and
> background color..****
>
>  ****
>
> Hi, ****
>
>  ****
>
> I would like to know if it is possible to draw a point feature with a
> background color..****
>
>  ****
>
> I define a style like that:****
>
>  ****
>
> ImgStyle = {****
>
>         externalGraphic: imgURL,****
>
>         label: text,****
>
>         labelXOffset: "0",****
>
>         labelYOffset: "-10",****
>
>         fontColor: txt_colfont,****
>
>         fontSize: "10px",****
>
>         fontFamily: "Arial",****
>
>         fontWeight: "bold",****
>
>         pointRadius: 10,****
>
>         labelAlign: "cm",****
>
>         labelPadding: "3px",****
>
>         labelBackgroundColor: txt_colback,****
>
>         labelBorderColor: "#cfcfcf",****
>
>         labelBorderSize: "1px"****
>
>     };****
>
>  ****
>
> And what I would like to do, is draw a background to the image..****
>
>  ****
>
> By now, I'm drawing two elements in the same position, one is the point
> with the externalGraphic, and the other one is the same but without the
> externalGraphic and with a background color.. With this I can see the
> effect of a background under the image..****
>
>  ****
>
> But, I would like to draw as a unique element... Because I'm loading a
> large amount of markers to the map.****
>
>  ****
>
> And also, I would like to apply a cluster strategy to the layer.. And
> drawing the background and the image as separate features modifies the
> clustering..****
>
>  ****
>
> Thanks!****
>
>  ****
>
>  ****
>
>  ****
>
> ** **
>
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