[OpenLayers-Users] Problems with labels, renderIntents and some other sutff
David Alda Fernandez de Lezea
dalda at hazi.es
Thu Dec 5 01:35:45 PST 2013
Robert,
thanks for your response. That worked for me. Thank you very much!
Regards,
David Alda Fernández de Lezea
UNIDAD DE EMPRENDIMIENTO Y DESARROLLO RURAL
Area de Sistemas de Información Geográfica, Planificación Territorial y Forestal
Granja Modelo s/n
01192 Arkaute Araba
T 627923170 F 945 003 290
dalda at hazi.es | www.hazi.es
********************* LEGE OHARRA ******************* AVISO LEGAL ******************* DISCLAIMER ******************
Mezu hau pertsonala eta isilpekoa da eta baimenik gabeko erabilera debekatua dago legalki. Jasotzailea ez bazara ezabatu mezua, bidali eta kontserbatu gabe.
Este mensaje es personal y confidencial y su uso no autorizado está prohibido legalmente. Si usted no es el destinatario, proceda a borrarlo, sin reenviarlo ni conservarlo.
This message is personal and confidential, unauthorised use is legally prohibited. If you are not the intended recipient, delete it without resending or backing it.
-----Mensaje original-----
De: Robert Sanson [mailto:Robert.Sanson at asurequality.com]
Enviado el: martes, 03 de diciembre de 2013 21:18
Para: David Alda Fernandez de Lezea; openlayers-users at lists.osgeo.org
Asunto: Re: [OpenLayers-Users] Problems with labels, renderIntents and some other sutff
Hi David
To avoid labelling vertices of polygons when selected, use something like the following - define your Styles, and then add a StyleMap with a function that only labels the polygons:
var padd_style = new OpenLayers.Style();
padd_style.label = "${getLabelp}";
padd_style.pointRadius = 4;
padd_style.strokeColor = "#006666";
padd_style.strokeDashstyle = "solid";
padd_style.fillColor = "#EBFFD6";
padd_style.fillOpacity = 0.0;
padd_style.strokeWidth = 2;
padd_style.fontColor = "blue";
padd_style.fontSize =10;
padd_style.fontFamily = "Arial";
padd_style.fontWeight = "bold";
var delf_style = new OpenLayers.Style({
'strokeColor': '#666666',
'strokeOpacity': 0.3,
'fillColor': '#cccccc',
'fillOpacity': 0.1,
'fontColor': '#222222'
});
var padd_stylemap = new OpenLayers.StyleMap({
"default": new OpenLayers.Style(padd_style, {
context: {
getLabelp: function (feature) {
if (feature.geometry && feature.geometry.CLASS_NAME ==
"OpenLayers.Geometry.Polygon") {
return feature.attributes.name;
} else {
return "";
}
}
}
}),
"delf": delf_style
});
regards,
Robert
>>> "David Alda Fernandez de Lezea" <dalda at hazi.es> 3/12/2013 10:01
p.m. >>>
Hi list,
I'm facing a strange behaviour regarding labelling features, in this case polygons, and the rendering intents of my style map. I have some features loaded into an OpenLayers.Layer.Vector layer. This layer has a style map definition:
var styles = new OpenLayers.StyleMap({
"default": new OpenLayers.Style(null,{
rules: [
new OpenLayers.Rule({
symbolizer: {
"Point": {
pointRadius: 5,
graphicName: "circle",
fillColor: "#FFA500",
fillOpacity: 0.25,
strokeWidth: 1,
strokeOpacity: 1,
strokeColor: "#FFA500"
},
"Line": {
strokeWidth: 3,
strokeOpacity: 1,
strokeColor: "#FFA500"
},
"Polygon": {
strokeWidth: 2,
strokeOpacity: 1,
strokeColor: "#FFA500",
fillColor: "#FFA500"
}
}
})
]
}),
"select": new OpenLayers.Style({
strokeColor: "#00ccff",
strokeWidth: 4,
strokeDashstyle: "solid"
}),
"temporary": new OpenLayers.Style(null, {
rules: [
new OpenLayers.Rule({
symbolizer: {
"Point": {
pointRadius: 5,
graphicName: "square",
fillColor: "white",
fillOpacity: 0.25,
strokeWidth: 1,
strokeOpacity: 1,
strokeColor: "#333333"
},
"Line": {
strokeWidth: 3,
strokeOpacity: 1,
strokeColor: "#00ccff"
},
"Polygon": {
strokeWidth: 2,
strokeOpacity: 1,
strokeColor: "#0000ff",
fillColor: "#0000ff"
}
}
})
]
})
});
I've developed a function to label the features dynamically:
labelFeatures: function (etiquetas){
//label : "name: ${name}\n\nage: ${age}",
var label="";
for (var i=0;i<=etiquetas.length-1;i++){
label += "${" + etiquetas[i] + "}-";
}
label = label.substring(0,label.length-1);
var pila = this.map.getLayersByName("pila")[0];
for (var i=0;i<=pila.styleMap.styles["default"].rules.length-1;i++){
if (pila.styleMap.styles["default"].rules[i].symbolizer.Polygon){
pila.styleMap.styles["default"].rules[i].symbolizer.Polygon.label = label;
pila.styleMap.styles["default"].rules[i].symbolizer.Polygon.labelAlign = "rt";
pila.styleMap.styles["default"].rules[i].symbolizer.Polygon.fontSize = "14px";
pila.styleMap.styles["default"].rules[i].symbolizer.Polygon.fontWeight = "bold";
}
if (pila.styleMap.styles["default"].rules[i].symbolizer.Line){
pila.styleMap.styles["default"].rules[i].symbolizer.Line.label = label;
pila.styleMap.styles["default"].rules[i].symbolizer.Line.labelAlign
= "rt";
pila.styleMap.styles["default"].rules[i].symbolizer.Line.fontSize = "14px";
pila.styleMap.styles["default"].rules[i].symbolizer.Line.fontWeight
= "bold";
}
if (pila.styleMap.styles["default"].rules[i].symbolizer.Point){
pila.styleMap.styles["default"].rules[i].symbolizer.Point.label = label;
pila.styleMap.styles["default"].rules[i].symbolizer.Point.labelAlign = "rt";
pila.styleMap.styles["default"].rules[i].symbolizer.Point.fontSize
= "14px";
pila.styleMap.styles["default"].rules[i].symbolizer.Point.fontWeight = "bold";
}
pila.styleMap.styles["default"].defaultStyle.label = label;
}
}
I also have the highlight control added to the map.
Then thing is that once the features are loaded and rendered the label appears correctly, buy whenever I hover the pointer over the feature the correct label disappears and I get the substitution value for the label, i.e, something like ${myLabel}. Furthermore, whenever I select the feature I get an 'undefined' label over all the feature's vertices. And finally another weird behaviour is that if I try to draw a new feature with the DrawPolygon control I get the following error:
Uncaught TypeError: Cannot read property 'x' of null OpenLayers.js:614 OpenLayers.Renderer.SVG.OpenLayers.Class.drawText OpenLayers.js:614 OpenLayers.Renderer.OpenLayers.Class.drawFeature OpenLayers.js:292 OpenLayers.Layer.Vector.OpenLayers.Class.drawFeature
OpenLayers.js:1578
OpenLayers.Layer.Vector.OpenLayers.Class.addFeatures
OpenLayers.js:1565
OpenLayers.Handler.Polygon.OpenLayers.Class.createFeature
OpenLayers.js:1994
OpenLayers.Handler.Path.OpenLayers.Class.mousedown OpenLayers.js:1846 OpenLayers.Events.OpenLayers.Class.triggerEvent OpenLayers.js:559 OpenLayers.Events.OpenLayers.Class.handleBrowserEvent
OpenLayers.js:562
(anonymous function)
I'm working with OpenLayers 2.9
I don't really know what to do. Any help is much appreciated.
Thanks in advance.
Regards,
David Alda Fernández de Lezea
UNIDAD DE EMPRENDIMIENTO Y DESARROLLO RURAL
Area de Sistemas de Información Geográfica, Planificación Territorial y Forestal
Granja Modelo s/n
01192 Arkaute Araba
T 627923170 F 945 003 290
dalda at hazi.es <blocked::mailto:correo_electronico at hazi.es> | www.hazi.es <blocked::http://www.hazi.es/>
<blocked::http://www.hazi.es/>
********************* LEGE OHARRA ******************* AVISO LEGAL
******************* DISCLAIMER ******************
Mezu hau pertsonala eta isilpekoa da eta baimenik gabeko erabilera debekatua dago legalki. Jasotzailea ez bazara ezabatu mezua, bidali eta kontserbatu gabe.
Este mensaje es personal y confidencial y su uso no autorizado está prohibido legalmente. Si usted no es el destinatario, proceda a borrarlo, sin reenviarlo ni conservarlo.
This message is personal and confidential, unauthorised use is legally prohibited. If you are not the intended recipient, delete it without
resending or backing it.
_______________________________________________
Users mailing list
Users at lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/openlayers-users
This email and any attachments are confidential and intended solely for the addressee(s). If you are not the intended recipient, please notify us immediately and then delete this email from your system.
This message has been scanned for Malware and Viruses by Websense Hosted Security.
www.websense.com
More information about the Users
mailing list