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I am currently invested in a project to implement marine charts and maps into our custom Google Maps application. However, I am quite unsure of how to actually go about doing this. I would like to use the NOAA ENC data from here:
http://www.charts.noaa.gov/ENCs/ENCs.shtml
What I would like to do is use this data to display the charts on Google Maps. Does anyone have any ideas/tips/insight on how to do this?
Apparently there is an open-source reader which plugs into common utility (ogr2ogr) which allows you to convert the data into shapefile format:
http://home.gdal.org/projects/s57/
Once you get the data into shapefile format, then turning it into tiles is a well-understood problem. Here is one blog posting of one way someone did it:
http://jongyulin.com/2009/05/getting-started-with-map-tiling-mapnik-and-shapefiles/ https://web.archive.org/web/20150523144053/http://jongyulin.com:80/2009/05/getting-started-with-map-tiling-mapnik-and-shapefiles/
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I have a KML file that I exported after making my own Google Map. I was wondering if anyone knows a way I can get this map into BigQuery as a table of the Precinct name and the coordinates of their borders? Thanks in advance!
You can't load KML directly into a BigQuery GEOGRAPHY column. But BigQuery does support loading from WKT, WKB or GeoJSON.
So you'll have to first convert the KML into one of the above formats, perhaps using GDAL?
After that you can run a bq load. Alternatively to a load, it also works well as an external table, for example with WKB embedded as one column in a CSV.
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This might be a long shot...but would anyone know if you can retrieve the google drive links that is added in a Classic Google Sites or where are photos/files uploaded directly to Sites stored?
For example, if one of the subpages contains several google drive files, can you retrieve the drive links using GAS?
I only found some information about images/photos where Google sites has its own image store, not sure if that is still accurate. Not so much as retrieving the file links added in a Google Sites.
Any information is greatly appreciated! TIA
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I just started developing a Google web app, may I know what is the best way of storing data? Is it by using scriptDB, spreadsheets or JDBC?
You can take the hard work out of working with data storage by using this library:
http://www.harryonline.net/scripts/objdb-storing-data-with-google-apps-script/482
Using this library, you can work both with spreadsheets and JDBC databases, and easily switch if you later change your mind.
If you want to modify the data directly, then you can save data in spreadsheet and build apps based on spreadsheet data. If you store data in ScriptDB, you can not edit data easily. It all depends on your requirements.
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My site has a large number of local service providers and their location information.
I'm assuming this is the sort of thing Google would like to index in their Maps or Places product since I see their map widget come up in related search results.
Google Places allows you to do a bulk upload but it has a verification process designed for individual business owners where they call or mail you something.
I've looked a bit into KML or GeoRSS. Has anyone had success using these methods to get Google to index location data that appears in their maps search results?
Have you reviewed the Google webmaster tools documentation for sitemaps?
http://www.google.com/support/webmasters/bin/answer.py?answer=94555
Also:
http://code.google.com/apis/kml/documentation/kmlSearch.html
These cover how to submit data for Maps, Search and Earth.
At first I thought KML was the way to go, but this appears to be what I was looking for:
http://maps.google.com/help/maps/richsnippetslocal/
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Hope someone can advise,
I would like to be able to use google map API to find all Zip codes/cities with x Miles of a point.
Has anyone done such a thing with google map or maybe some other type of service.
Would love to know if so how you have achieved it !
Thank you if you can advise.
There's nothing in the Google Maps API that can help with that, and I've never heard of any such service that could be mashed up with a Google Map.
What you could do is obtain a list of the locations of all the zip codes. Do a web search for [free zip code database] there are lots of them out there. Put it on your server then write your own server script to search it.