http://www.microimages.com/geodata-htm/geometricTilesets.htm(Web 上の文書 テクニカルガイドではない)

Online Maps — Geometric Web Tilesets

TNTmips can convert styled thematic map layers to geometric web tilesets, which containmap data in tiled vector graphic form and which can include attribute information for themap elements. The map attributes can be shown in legend form in the geomashup and canbe viewed for individual map elements in popup information balloons in the geoviewer.
Geometric tilesets allow web presentation of and user interaction with information-rich map
data for any size area over multiple map scales.
TNTmips can create geometric web tilesets containing SVG, compressed SVG (SVGZ), or KML
tile files in the Export Geometric Tileset process. Line and polygon elements in the source
data are automatically simplified for rendering at successively lower zoom levels, reducing
the complexity and stored size of the lower-resolution tiles for efficient fast display in thebrowser. All geometric tileset forms can be used to present map data with styled polygon,line, and point features as well as labels. Geometric web tilesets can be used in geomashups
for Google Maps, Open Layers and Google Earth (KML only) geoviewers. For more information
see Comparing SVG & KML Geometric Tilesets.
Click icons below map to open geomashups with:

GOOGLE MAPSOPEN LAYERSGOOGLE EARTH

BING MAPS

Townsend Montana Geologic Map
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This geologic map uses a set of 5 geometric web tilesets containing polygons, lines, and points with theirassociated map attributes. Hovering the mouse over a map feature reveals the feature type, and leftclicking on the map pops in a balloon with the name and description of the feature type. A legend createddynamically for from these attributes for the Rock Units layer is shown in the sidebar. Examples of SVG,SVGZ, and KML geometric tilesets are shown.
The TNTmips interactive Geomashup process was used to assemble the 5 tilesets, sidebar with legend, andother features into these mashups. Structural features (contacts, faults, folds, and strike/dipmeasurements) are organized in the layer controls as a separate layer group so that this entire group or its
individual layers can be turned on or off as desired. The Rock Units layer is shown with partial
transparency to allow features from the base map/image to show through for reference.
The source map data were downloaded from a USGS web site as shapefiles, imported to TNTmips as 5vector objects, and styled to match the source map. The Export Geometric Tileset process in TNTmips
then converted the vector elements in each vector to styled elements in a geometric tileset along withassociated attributes set by element DataTips. Since the map layers are tilesets, the map could cover any
geographic extents with the same level of detail and performance in your web browser.

Nebraska Groundwater DataSeveral types of data on groundwater and its use in Nebraska are presented in these geomashups usinggeometric tilesets created in TNTmips. Zoom in anywhere to see more map detail and the location, use,and characteristics of over 169,000 registered wells in this state. Examples of SVG, SVGZ, and KML tilesets
are shown. A geometric tileset stores the points, lines, and polygons making up a map layer in a sequenceof small tiled KML or SVG(Z) files that can be fetched and rendered efficiently in the browser. By using ageometric tileset instead of a single KML or SVG file, any size area can be covered and rendered over awide range of zoom levels, with rendering times independent of the size of the area.

The initial view in each geomashup displays a polygon tileset showing the amount of rise or
fall in the level of the groundwater table (positive or negative change) in different areasfrom predevelopment through the Spring of 2010. The amount of change in each area isshown automatically as you move the mouse over the map; you can also left-click in any ofthe polygons to show the same information in an information window. This water tablechange layer is in a mutually-exclusive group controlled by radio buttons. The other layer inthis group is a polygon tileset showing spatial variations in the thickness of the primarygroundwater aquifer across Nebraska.
When you zoom in far enough, a point tileset showing groundwater well locations becomes visible. The
information window shows a listing of selected data for each well. Well symbols are colored by the type ofwater use, and a legend listing these symbols and their explanation is shown in the layer controls. TheAssemble Geomashup process in TNTmips, which was used to assemble these layers, lets you choose tocreate a legend for any individual KML or SVG(Z) tileset layer. A legend entry is created for each uniquestyle and corresponding attribute value in the geometric tileset.
The bottom layer in this geomashup is a reference layer showing Nebraska county boundaries and county
names; this layer is an SVG tileset of these geometric features.

Lancaster County Bike Routes and Trails
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These geomashups show bicycle trails and on-street bicycle routes for Lancaster County, Nebraska. Thelines and their attributes are provided by a KML geometric tileset created from a TNT vector object.
Hovering the mouse over a line reveals a DataTip showing the trail or street name. Left-clicking on a line
pops in an information balloon that also identifies the trail or route type, which is also indicated by thediffering line styles. An option has been set to automatically close a previous info balloon when a newballoon opens.
A single KML file rendered from the TNT vector object would be too complex to render in the browser.
Instead the styled vector lines were rendered into a KML geometric tileset using the Export Geometric
Tileset process in TNTmips. This geometric tileset is a Google super-overlay structure made up of tiled
sets of KML files depicting the bike trail/route lines at each zoom level. Only a few of the KML tile files
are fetched by these geoviewers for any area and zoom level that you view. Geometric tilesets can thus beused to cover even larger areas than the single county shown here. The DataTip information attached toeach TNT vector line was written into the KML tile files for presentation in the information balloons inthese geomashups.
MORE GEOMETRIC WEB TILESETS