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Which is the best way to create tiles?
Creating tiles using Mapnik and tilecache. This is the method lets you generate the map as you view it instead of requiring any pre-rendering. This method can struggle at higher load levels if too many people try to look at unrendered tiles simultaneously.
How do you make a planet in OpenStreetMap?
The tiles were served by a ruby script which fetched the tiles from a MySQL database. If the tile was old or missing then the database would be updated to mark the tile for rendering. A background script would scan the database and render the tiles using a python script. Download the planet file from planet.openstreetmap.org
Is there a way to make tiles in OpenLayers?
Change the OpenLayers instance to point to your server instead of the pre-rendered tiles. This is the method lets you generate the map as you view it instead of requiring any pre-rendering. This method can struggle at higher load levels if too many people try to look at unrendered tiles simultaneously.
Which is better for raster tiles leaflet or OpenLayers?
Change the OpenLayers instance to use your own tilecache server instead of the pre-rendered tiles. Two javascript libraries are recommended for allowing access to raster tiles – Leaflet or OpenLayers. Each has different strengths, but Leaflet is probably easier to learn and more extensible.
How to calculate area of irregular shaped plots?
Calculating areas of irregular polygons is a non-trivial task without sophisticated surveying instruments. One way to calculate areas of such plots, is to break them into a number of triangular-shaped plots as in image shown below and then find the area of each triangle using Heron’s formula and sum them up.
How are the tiles numbered in Google Maps?
Tiles in Google Maps are numbered from the same origin as that for pixels. For Google’s implementation of the Mercator projection, the origin tile is always at the northwest corner of the map, with x values increasing from west to east and y values increasing from north to south.
How are the coordinates of a tile determined?
When a map scrolls to a new location, or to a new zoom level, the API determines which tiles are needed using pixel coordinates, and translates those values into a set of tiles to retrieve. These tile coordinates are assigned using a scheme which makes it logically easy to determine which tile contains the imagery for any given point.