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Andrew Fink
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Remove getting started example from documentation homepage
Avoids duplication with README. Documentation has other more descriptive and complete tutorials.
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docs/index.rst

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@@ -29,60 +29,6 @@ those who do not have the time and/or interest in learning a new language.
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By having the speed and scalability of Scala and the ease of Python,
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GeoPySpark is then the remedy to this predicament.
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A Quick Example
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----------------
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Here is a quick example of GeoPySpark. In the following code, we take NLCD data
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of the state of Pennsylvania from 2011, and do a masking operation on it with
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a Polygon that represents an area of interest. This masked layer is then saved.
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If you wish to follow along with this example, you will need to download the
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NLCD data and unzip it.. Running these two commands will complete these tasks
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for you:
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.. code:: console
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curl -o /tmp/NLCD2011_LC_Pennsylvannia.zip https://s3-us-west-2.amazonaws.com/prd-tnm/StagedProducts/NLCD/2011/landcover/states/NLCD2011_LC_Pennsylvania.zip?ORIG=513_SBDDG
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unzip -d /tmp /tmp/NLCD2011_LC_Pennsylvannia.zip
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.. code:: python
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import geopyspark as gps
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from pyspark import SparkContext
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from shapely.geometry import box
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# Create the SparkContext
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conf = gps.geopyspark_conf(appName="geopyspark-example", master="local[*]")
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sc = SparkContext(conf=conf)
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# Read in the NLCD tif that has been saved locally.
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# This tif represents the state of Pennsylvania.
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raster_layer = gps.geotiff.get(layer_type=gps.LayerType.SPATIAL,
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uri='/tmp/NLCD2011_LC_Pennsylvania.tif',
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num_partitions=100)
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# Tile the rasters within the layer and reproject them to Web Mercator.
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tiled_layer = raster_layer.tile_to_layout(layout=gps.GlobalLayout(), target_crs=3857)
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# Creates a Polygon that covers roughly the north-west section of Philadelphia.
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# This is the region that will be masked.
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area_of_interest = box(-75.229225, 40.003686, -75.107345, 40.084375)
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# Mask the tiles within the layer with the area of interest
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masked = tiled_layer.mask(geometries=area_of_interest)
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# We will now pyramid the masked TiledRasterLayer so that we can use it in a TMS server later.
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pyramided_mask = masked.pyramid()
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# Save each layer of the pyramid locally so that it can be accessed at a later time.
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for pyramid in pyramided_mask.levels.values():
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gps.write(uri='file:///tmp/pa-nlcd-2011',
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layer_name='north-west-philly',
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tiled_raster_layer=pyramid)
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Contact and Support
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--------------------
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