[OpenLayers-Users] GeoJSON layer and modifyFeature control

[Eric Lemoine]

On Thu, Dec 4, 2008 at 11:25 PM, Adorian Ardelean <mynature at gmail.com> wrote:
> Hi Alexandre,
>
> No. This is very similar to what I had initially except adding "select"
> style to stylemap. At click on feature, the select style is applied, but no
> edit of vertex is possible (no drag-able circles appear on vertexes).
>
> So I can make the layer editable by adding rule, but unfortunately paying
> with loss of context styling. Context styling works ok with your example and
> what I had in hand initially. If  I could only include context inside rule
> somehow :-).
>
> var styleMap = new OpenLayers.StyleMap();
>
> var rules = [new OpenLayers.Rule({
> symbolizer: template,
> context: context,
> elseFilter: true
> })];
> styleMap.styles["default"].addRules(rules);
>
> It is midnight here, I will push on it tomorrow again. Thank you all for
> your kind help!

I added the code below to the modify-feature.html example and it
worked for me (code is based on Alexandre's):

            var tpl = {
                pointRadius: "${radius}",
                fillOpacity: 0.4,
                strokeColor: "#000000",
                strokeWidth: 2
            };
            var ctx = {
                context: {
                    radius: function(feature) {
                        return 10;
                    }
                }
            };

            var oStyle = new OpenLayers.Style(tpl, ctx);

            var oStyleMap = new OpenLayers.StyleMap({
                "default": oStyle,
                // works w/ or w/o the following
                "select": new OpenLayers.Style({
                    fillColor: "#66ccff",
                    fillOpacity: 0.2,
                    strokeColor: "#3399ff"
                })
            });

            var aoTypeColor = {
                '1': {fillColor:"blue"},
                '2': {fillColor:"red"},
                '3': {fillColor:"yellow"},
                '4': {fillColor:"white"}
            };

            oStyleMap.addUniqueValueRules("default", "Type", aoTypeColor);
            oStyleMap.addUniqueValueRules("select", "Type", aoTypeColor);

            var rules = [
                new OpenLayers.Rule({
                    symbolizer: tpl,
                    context: ctx,
                    elseFilter: true
                })
            ];
            oStyleMap.styles["default"].addRules(rules);
            oStyleMap.styles["select"].addRules(rules);



--
Eric