Gmap, Views Draw Lines on Field Collection Locations Map I have built a website for car tours. There are multiple tours throughout the year, and new ones are added regularly. Here is a quick outline of the website...

Content type: "Tour Page", Fields: Field collection item, allows multiple tour steps to be added. Each field collection item has a Gmap find address on map location field.

On each tour page, I have a view Gmap using a contextual filter to get a default value of Content ID from URL. This displays the tour steps as single icons. This view is in a block, and set to display on all "Tour pages".

I would like to draw a line on the map from point to point. It can be a straight line, going from point to point.

Now, I can edit the view, go to gmap settings, and enter my own lines using the macro for the view, like this...

[gmap line=#0000ff/5/45:51.512099,-0.15169000000003052 + 51.20086,3.2629389999999603 + 50.654685,4.833983999999987 + 50.403266,6.240233999999987 + 49.966239,8.18481399999996 + 49.067118,8.10241700000006]


...but this will output the same lines for this view on every tour page. But of course, the route is different for every tour.
Here is where I am so far... 

http://www.dev.ducktoursinternational.com/tour/maranello-monaco-monza-grand-prix-tour-2009 

...The line is on the map, following the points. But this same line is in the same place on every tour.

I have all of the latitude and longitude values for all of the points collection in the field collection location fields, is there a way to create a unique macro for every map using these values?

I can probably use a "master" view to assemble all of the lat and long values into the right format for a gmap macro, but how do I get that macro to apply to the different route on each page?

Some more information...
1. Here is the tour page with the current macro on it... http://www.dev.ducktoursinternational.com/tour/maranello-monaco-monza-grand-prix-tour-2009 


Here is a screenshot of the gmap view...

Here is a screenshot of the views GMap Settings



So I have a block with a map, and a block with the correct macro for that page. How do I use that macro for that map?
off the top of my head a custom module using hook_views_pre_build or 1 of the views hooks functions should let you "alter" the Macro value from something you load and compose from the database.

To be of more help we'd need to see your full content type admin page with field collection admin page, and the master layout of the view for example if you wanted coding help ...