[GIS] Why are KML/KMZ parts missing after upload to Google Maps

google mapskmlkmz

I have a problem with a KMZ file uploaded to my Google Maps places:

As you can see I have a polygon KMZ file (converted from a shapefile in ArcMap) that has 12 parts but the Google Maps shows only four of them at once (i.e., on three separate views). How can I fix it so they're all visible? Any idea?

The KML is 3,9Mb that's why I made a KMZ that is 0,9Mb.

Best Answer

I employed a trick described here and could get all your polygons in one page

Trick is:

First get the URL of the KML export. When viewing your Custom Map, right click the 'KML' link and copy the link to the clipboard (probably something like 'Copy Shortcut' or 'Copy Link Address' - depends on your browser)

Now display your KML again. I have found it best to open a new Google Maps window, probably just go-to http://maps.google.com and paste in the URL copied earlier INTO the search box, and click the Search Maps button.

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[GIS] Why does one part of GML -> KML conversion not work on Google Maps

@andy, I was going to suggest basically the same thing @nhopton suggested. The size of the KML file may be causing an issue. Simplifying geometries may help the problem. I would suggest being careful though, as this can lower the resolution of your data. I do not think that will necessarily be an issue for your particular data set though. If you do have those concerns you can also try splinting up you data into several smaller files and make a few KML files instead of one giant one.

[GIS] Google Maps/Google Earth – KML Overlays and Custom Orientation

Please check the Limitations of KML/KMZ on Google Maps API:

Google Maps supports the following KML elements (that is, KML queries in the Search box and GGeoXml objects in the Maps API):

Placemarks
Icons
Folders
Descriptive HTML
    Entity replacement via <BalloonStyle> and <text> 
KMZ (compressed KML, including attached images)
Polylines and polygons
Styles for polylines and polygons, including color, fill, and opacity
Network links to import data dynamically
Ground overlays and screen overlays

This list does not apply to Google Earth's export to Google Maps, My Maps import, or My Maps export to Google Earth.

The KML parser generally silently ignores XML tags it does not understand.

Google Maps currently has specific limitations to the size and complexity of loaded KML files. Below is a summary of the current limits:

Note: these limits are temporary and are subject to change at any time. Maximum fetched file size (raw KML, raw GeoRSS, or compressed KMZ) 3MB Maximum uncompressed KML file size 10MB Maximum number of Network Links 10 Maximum number of total document-wide features 1,000

Best Answer

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[GIS] Why does one part of GML -> KML conversion not work on Google Maps

[GIS] Google Maps/Google Earth – KML Overlays and Custom Orientation

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