plotly 0.14.1

A plotting library powered by Plotly.js
Documentation 
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use plotly_derive::FieldSetter;
use serde::Serialize;

use crate::color::Color;
use crate::layout::{Axis, Center, Projection};

#[derive(Serialize, Clone, Debug, FieldSetter)]

pub struct LayoutGeo {
    /// Sets the latitude and longitude of the center of the map.
    center: Option<Center>,
    /// Sets the domain within which the mapbox will be drawn.
    /// Sets the zoom level of the map.
    zoom: Option<u8>,
    /// Sets the projection of the map
    #[field_setter(default = "Projection::new().projection_type(ProjectionType::Orthographic)")]
    projection: Option<Projection>,
    /// If to show the ocean or not
    #[field_setter(default = "Some(true)")]
    showocean: Option<bool>,
    /// Sets the color of the ocean
    #[field_setter(default = "'rgb(0, 255, 255)'")]
    oceancolor: Option<Box<dyn Color>>,
    /// If to show the land or not
    showland: Option<bool>,
    /// Sets the color of the land
    landcolor: Option<Box<dyn Color>>,
    /// If to show lakes or not
    showlakes: Option<bool>,
    /// Sets the color of the lakes
    lakecolor: Option<Box<dyn Color>>,
    /// If to show countries (borders) or not
    showcountries: Option<bool>,
    /// Configures the longitude axis
    lonaxis: Option<Axis>,
    /// Configures the latitude axis
    lataxis: Option<Axis>,
    // Sets the coastline stroke width (in px).
    #[field_setter(default = "Some(1)")]
    coastlinewidth: Option<u8>,
}

impl LayoutGeo {
    pub fn new() -> Self {
        Default::default()
    }
}

#[cfg(test)]
mod tests {
    use serde_json::{json, to_value};

    use super::*;
    use crate::color::Rgb;
    use crate::layout::{Axis, Center, Projection, ProjectionType, Rotation};

    #[test]
    fn serialize_layout_geo() {
        let geo = LayoutGeo::new()
            .center(Center::new(10.0, 20.0))
            .zoom(5)
            .projection(
                Projection::new()
                    .projection_type(ProjectionType::Mercator)
                    .rotation(Rotation::new().lat(1.0).lon(2.0).roll(4.0)),
            )
            .showocean(true)
            .oceancolor(Rgb::new(0, 255, 255))
            .showland(true)
            .landcolor(Rgb::new(100, 200, 100))
            .showlakes(false)
            .lakecolor(Rgb::new(50, 50, 200))
            .showcountries(true)
            .lonaxis(Axis::new().title("Longitude"))
            .lataxis(Axis::new().title("Latitude"))
            .coastlinewidth(2);

        let expected = json!({
            "center": {"lat": 10.0, "lon": 20.0},
            "zoom": 5,
            "projection": {"type": "mercator", "rotation": {"lat": 1.0, "lon": 2.0, "roll": 4.0}},
            "showocean": true,
            "oceancolor": "rgb(0, 255, 255)",
            "showland": true,
            "landcolor": "rgb(100, 200, 100)",
            "showlakes": false,
            "lakecolor": "rgb(50, 50, 200)",
            "showcountries": true,
            "lataxis": { "title": { "text": "Latitude" } },
            "lonaxis": { "title": { "text": "Longitude" } },
            "coastlinewidth": 2
        });
        assert_eq!(to_value(geo).unwrap(), expected);
    }
}