Add Grid Lines to Map

[psamuels56]

I've looked far and wide and couldn't find a solution to this question. I'm hoping it's something easy.

For my Delivery application, I've divided each of the serviced zip codes into 9 sub-sectors, so that the Dispatcher can easily group his/her deliveries. Each of the 9 sub-sectors is given a number from 1-9. When a delivery is being scheduled, next to the zip code, the "sub sector" is also shown (e.g. Zip Code: 14075; Sub Code: 3). The 9 equal-sized sub-sector divisions are calculated by the longitudes and latitudes... and it's working great!

I want to add a Google Map visualization for the user, so that he/she can call up a Google map and see the various sub-sectors of the delivery region. You can view what I'm looking to accomplish in this image, showing the 9 sub-sectors in this image (click to enlarge): MapGrid.jpg

I know how to add a single circle to a map, but don't know if there's a way to overlay these gridlines/squares (each of the lines/squares would be controlled from a SQL table I've created that contains the latitudes/longitudes for the divisions for each zip code). I couldn't find any place where I could overlay anything (lines, rectangles, text, etc.) to a map. I assume it would be done with an XBasic function (using a SQL connection), but I just don't know where to start.

If you have any suggestions or ideas, I'd really appreciate the help. I think this will really add some power to the application (it will especially help the dispatcher in scheduling deliveries to sub-sectors of neighboring zip codes).


Thanks for your help!

[Clipper87]

Re: Add Grid Lines to Map

From the pre-release notes:

UX Component - Google Map - Getting a Pointer to the Low Level Map Object - The UX component allows you to place a Map control on the UX. Alpha Anywhere creates a map object that has many methods (such as placing markers on the map). Behind the scenes, the Alpha Anywhere map object just calls methods of the underlying Google Map object.
In some cases you might want to get a pointer to the underlying Google map object so that you can invoke methods on it directly. For example, you might have read about some feature in the Google Map API documentation that is not implemented in the Alpha Anywhere map object. Getting a pointer to the underlying Google Map object will allow you to implement any feature you might read about in the Google Map API documentation.

Here is how you can get a pointer to the Google Map object:

// get a pointer to the Alpha Anywhere map object
//assume your map control is called 'MYMAP1'
var mObj = {dialog.object}.getControl('MYMAP1');
//now get a pointer to the underlying Google Map object
var gMap = mObj.map;

Look for google.maps.Rectangle class in the API doc