{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Seeding from shapefile\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "from datetime import datetime\nimport geopandas as gpd\nfrom opendrift import test_data_folder\nfrom opendrift.models.oceandrift import OceanDrift\n\n\no = OceanDrift(loglevel=20)  # Set loglevel to 0 for debug information"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Seed particles within all polygons from shapefile\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "o.seed_from_shapefile(test_data_folder +\n                      'shapefile_spawning_areas/Torsk.shp',\n                      number=1000, time=datetime.now())"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Alternative by using GeoPandas and selecting a subset of two polygons\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "gdf = gpd.read_file(test_data_folder + 'shapefile_spawning_areas/Torsk.shp')\ngdf = gdf.iloc[[1, 5]]\no.seed_from_geopandas(gdf, number=2000, time=datetime.now())\n\no.plot(fast=True)"
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "display_name": "Python 3",
      "language": "python",
      "name": "python3"
    },
    "language_info": {
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "file_extension": ".py",
      "mimetype": "text/x-python",
      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "version": "3.14.3"
    }
  },
  "nbformat": 4,
  "nbformat_minor": 0
}