Hi Josh To achieve what you want for your catagories you will need to generate the XML from an SQL data base such as My SQL. You will need to create a SELECT satement from your checkboxes. Regards Davie
On Dec 31 2010, 2:23 am, Kirkman14 <[email protected]> wrote: > Hi everyone, I'm trying to build a map of trails around St. Louis. > > I'm using an XML file to hold all the trail/marker/map data. For each > marker, I have categories like "surface," "difficulty," "facilities," > etc. > > Some of these categories will have only one possible value for any > given trail. For example, a trail allows pets or it doesn't. > > But in other categories, a trail might have several values in one > category. For example, a trail might have bathrooms, fountains, AND > food as "facilities." > > So, ultimately I want this page to display a grid of six categories, > with all possible values (and checkboxes) under each category. In this > way, a user could check what features he/she is interested in a trail > having. Then the map would update to show all trails that have these > features, and hide those that don't. > > The fact that elements can have multiple values introduces some > complexity. > > I've got to say that I am new to Google Maps, javascript, and XML, and > I may have bitten off more than I can chew. But after working on this > for a while, I have made some progress. > > My first example page is > here:http://www.joshrenaud.com/pd/trails_withcheckboxes.html > > It only implements one category (surface), and only partially. > > It builds off this > example:http://www.geocodezip.com/v3_MW_example_categories.html > > It's a little wonky. When the page loads, it doesn't show/hide the > markers the way I have specified in Javascript. (Only "asphalt" should > be checked after the page loads). > > It does seem to work okay after page load. Once you start checking/ > unchecking the various surface attributes, the markers DO hide/show. > > Yet, I can see this approach is probably all wrong. One of the markers > on the map has both "paved" and "unpaved" values. Unchecking "unpaved" > while leaving "paved" checked causes the marker to disappear, and > that's not ultimately what I want to happen. If a trail has *any* of > the checked characteristics, I want it to show up. > > Sorry for the long post. Here's what I'm hoping: > > 1. That someone can explain why the checkmarks don't get set the way I > want them to when the page loads. I want to know what I did wrong > there. > > 2. That someone can suggest a different approach for achieving the > "grid of categories" I describe above. My gut is telling me that the > show/hide I'm building off of won't do it. > > Thanks in advance for any help/advice anyone can offer. > > --Josh -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
