[OpenLayers-Users] HOW TO USE LOGICAL FILTERS

s.williams swilliams7_99 at yahoo.com
Wed Jul 28 10:33:51 EDT 2010


I want to combine two separate filters using a logical filter, the objective
is to use a comparison filter to set the point radius of a marker from
feature "attribute1" and use another filter to set the color of that marker
from "attribute2". Thanks for the help

Here's what I have

                      var rule = new OpenLayers.Rule({
                      filter: new OpenLayers.Filter.Comparison({
                        type: OpenLayers.Filter.Comparison.GREATER_THAN,
                        property: "attribute1",
                        value: 5
                    }),
                    symbolizer: {graphicName:"circle",
                                     pointRadius: 7
				     } 
                        
                    });


                    var rule1 = var rule = new OpenLayers.Rule({
                      filter: new OpenLayers.Filter.Comparison({
                        type: OpenLayers.Filter.Comparison.LESS_THAN,
                        property: "attribute2",
                        value: 2
                    }),
                    symbolizer: {graphicName:"circle",
                                    strokeColor: '#000000',
				    strokeWidth: 1,
				    fillColor: "#0000FF"
				     } 
                    });

                   var rules = new OpenLayers.Filter.Logical({
                                    filters: [rule1,rule2],
                                    type: OpenLayers.Filter.Logical.AND})

These are just some code snippets I have written, any help on how to put
them together would be great
                  

                        

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