defaults.rs

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

use crate::spatial::{
    ContinentAffines, DistributionParams, DistributionType, GeomType, SpatialConfig,
    SpatialGenerator,
};
use std::sync::OnceLock;

pub struct SpatialDefaults;

impl Default for ContinentAffines {
    fn default() -> Self {
        Self {
            africa: [84.194319, 0.0, -20.062752, 0.0, -77.623846, 37.579421],
            europe: [76.108853, 0.0, -11.964479, 0.0, 33.901968, 37.926872],
            south_asia: [80.942556, 0.0, 64.583540, 0.0, -61.381606, 51.672557],
            north_asia: [114.339049, 0.0, 64.495655, 0.0, 25.952988, 51.944267],
            oceania: [68.287041, 0.0, 112.481901, 0.0, -38.751779, -10.228433],
            south_america: [49.92948, 0.0, -83.833822, 0.0, -68.381204, 12.211188],
            south_north_america: [55.379532, 0.0, -124.890724, 0.0, -30.170149, 42.55308],
            north_north_america: [114.424763, 0.0, -166.478008, 0.0, -29.9779543, 72.659041],
        }
    }
}

impl SpatialDefaults {
    pub fn trip_default() -> SpatialGenerator {
        let config = SpatialConfig {
            dist_type: DistributionType::HierarchicalThomas,
            geom_type: GeomType::Point,
            dim: 2,
            seed: 56789,

            // geometry = box
            width: 0.0,
            height: 0.0,

            // geometry = polygon
            maxseg: 0,
            polysize: 0.0,

            params: DistributionParams::HierarchicalThomas {
                cities: 60000,
                sub_mean: 15.0,
                sub_sd: 12.0,
                sub_min: 2,
                sub_max: 80,
                sigma_city: 0.006,
                sigma_sub: 0.003,
                pareto_alpha_city: 0.80,
                pareto_xm_city: 1.0,
                pareto_alpha_sub: 1.00,
                pareto_xm_sub: 1.0,
            },
        };
        SpatialGenerator::new(config, OnceLock::new(), OnceLock::new())
    }

    pub fn building_default() -> SpatialGenerator {
        let config = SpatialConfig {
            dist_type: DistributionType::HierarchicalThomas,
            geom_type: GeomType::Polygon,
            dim: 2,
            seed: 12345,

            // geometry = box
            width: 0.0,
            height: 0.0,

            // geometry = polygon
            maxseg: 7,
            polysize: 0.000039,

            params: DistributionParams::HierarchicalThomas {
                cities: 10000,
                sub_mean: 5.0,
                sub_sd: 3.0,
                sub_min: 1,
                sub_max: 15,
                sigma_city: 0.1,
                sigma_sub: 0.01,
                pareto_alpha_city: 1.20,
                pareto_xm_city: 1.0,
                pareto_alpha_sub: 1.00,
                pareto_xm_sub: 1.0,
            },
        };
        SpatialGenerator::new(config, OnceLock::new(), OnceLock::new())
    }
}