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datasette-leaflet-freedraw-0.3.1


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مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.

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تبلیغات ما

مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.

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تبلیغات ما

مشتریان به طور فزاینده ای آنلاین هستند. تبلیغات می تواند به آنها کمک کند تا کسب و کار شما را پیدا کنند.

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توضیحات

Draw polygons on maps in Datasette
ویژگی مقدار
سیستم عامل -
نام فایل datasette-leaflet-freedraw-0.3.1
نام datasette-leaflet-freedraw
نسخه کتابخانه 0.3.1
نگهدارنده []
ایمیل نگهدارنده []
نویسنده Simon Willison
ایمیل نویسنده -
آدرس صفحه اصلی https://github.com/simonw/datasette-leaflet-freedraw
آدرس اینترنتی https://pypi.org/project/datasette-leaflet-freedraw/
مجوز Apache License, Version 2.0
# datasette-leaflet-freedraw [![PyPI](https://img.shields.io/pypi/v/datasette-leaflet-freedraw.svg)](https://pypi.org/project/datasette-leaflet-freedraw/) [![Changelog](https://img.shields.io/github/v/release/simonw/datasette-leaflet-freedraw?include_prereleases&label=changelog)](https://github.com/simonw/datasette-leaflet-freedraw/releases) [![Tests](https://github.com/simonw/datasette-leaflet-freedraw/workflows/Test/badge.svg)](https://github.com/simonw/datasette-leaflet-freedraw/actions?query=workflow%3ATest) [![License](https://img.shields.io/badge/license-Apache%202.0-blue.svg)](https://github.com/simonw/datasette-leaflet-freedraw/blob/main/LICENSE) Draw polygons on maps in Datasette Project background: [Drawing shapes on a map to query a SpatiaLite database](https://simonwillison.net/2021/Jan/24/drawing-shapes-spatialite/). ## Installation Install this plugin in the same environment as Datasette. $ datasette install datasette-leaflet-freedraw ## Usage If a table has a SpatiaLite `geometry` column, the plugin will add a map interface to the table page allowing users to draw a shape on the map to find rows with a geometry that intersects that shape. The plugin can also work with arbitrary SQL queries. There it looks for input fields with a name of `freedraw` or that ends in `_freedraw` and replaces them with a map interface. The map interface uses the [FreeDraw](https://freedraw.herokuapp.com/) Leaflet plugin. ## Demo You can try out this plugin to run searches against the GreenInfo Network California Protected Areas Database. Here's [an example query](https://calands.datasettes.com/calands?sql=select%0D%0A++AsGeoJSON%28geometry%29%2C+*%0D%0Afrom%0D%0A++CPAD_2020a_SuperUnits%0D%0Awhere%0D%0A++PARK_NAME+like+%27%25mini%25%27+and%0D%0A++Intersects%28GeomFromGeoJSON%28%3Afreedraw%29%2C+geometry%29+%3D+1%0D%0A++and+CPAD_2020a_SuperUnits.rowid+in+%28%0D%0A++++select%0D%0A++++++rowid%0D%0A++++from%0D%0A++++++SpatialIndex%0D%0A++++where%0D%0A++++++f_table_name+%3D+%27CPAD_2020a_SuperUnits%27%0D%0A++++++and+search_frame+%3D+GeomFromGeoJSON%28%3Afreedraw%29%0D%0A++%29&freedraw=%7B%22type%22%3A%22MultiPolygon%22%2C%22coordinates%22%3A%5B%5B%5B%5B-122.42202758789064%2C37.82280243352759%5D%2C%5B-122.39868164062501%2C37.823887203271454%5D%2C%5B-122.38220214843751%2C37.81846319511331%5D%2C%5B-122.35061645507814%2C37.77071473849611%5D%2C%5B-122.34924316406251%2C37.74465712069939%5D%2C%5B-122.37258911132814%2C37.703380457832374%5D%2C%5B-122.39044189453125%2C37.690340943717715%5D%2C%5B-122.41241455078126%2C37.680559803205135%5D%2C%5B-122.44262695312501%2C37.67295135774715%5D%2C%5B-122.47283935546876%2C37.67295135774715%5D%2C%5B-122.52502441406251%2C37.68382032669382%5D%2C%5B-122.53463745117189%2C37.6892542140253%5D%2C%5B-122.54699707031251%2C37.690340943717715%5D%2C%5B-122.55798339843751%2C37.72945260537781%5D%2C%5B-122.54287719726564%2C37.77831314799672%5D%2C%5B-122.49893188476564%2C37.81303878836991%5D%2C%5B-122.46185302734376%2C37.82822612280363%5D%2C%5B-122.42889404296876%2C37.82822612280363%5D%2C%5B-122.42202758789064%2C37.82280243352759%5D%5D%5D%5D%7D) showing mini parks in San Francisco: ```sql select AsGeoJSON(geometry), * from CPAD_2020a_SuperUnits where PARK_NAME like '%mini%' and Intersects(GeomFromGeoJSON(:freedraw), geometry) = 1 and CPAD_2020a_SuperUnits.rowid in ( select rowid from SpatialIndex where f_table_name = 'CPAD_2020a_SuperUnits' and search_frame = GeomFromGeoJSON(:freedraw) ) ``` ![Screenshot of the plugin in action](https://static.simonwillison.net/static/2021/datasette-leaflet-freedraw.png) ## Development To set up this plugin locally, first checkout the code. Then create a new virtual environment: cd datasette-leaflet-freedraw python3 -mvenv venv source venv/bin/activate Or if you are using `pipenv`: pipenv shell Now install the dependencies and tests: pip install -e '.[test]' To run the tests: pytest


نیازمندی

مقدار نام
>=0.60 datasette
>=0.2 datasette-leaflet
- pytest
- pytest-asyncio


زبان مورد نیاز

مقدار نام
>=3.6 Python


نحوه نصب


نصب پکیج whl datasette-leaflet-freedraw-0.3.1:

    pip install datasette-leaflet-freedraw-0.3.1.whl


نصب پکیج tar.gz datasette-leaflet-freedraw-0.3.1:

    pip install datasette-leaflet-freedraw-0.3.1.tar.gz