Method draw_sphere

src/surface_geometry.rs:393–419

Draws a sphere # Input `c` -- (len=3) center coordinates `r` -- radius `n_alpha` -- number of divisions along α (must be ≥ 2) `n_theta` -- number of divisions along θ (must be ≥ 2) # Output `x`, `y`, `z` -- the coordinates of all points as in a meshgrid # Example ``` use plotpy::{Plot, StrError, Surface}; use std::path::Path; fn main() -> Result<(), StrError> { // configure and draw surface

(
        &mut self,
        c: &[f64],
        r: f64,
        n_alpha: usize,
        n_theta: usize,
    )

    /// See also integration test in the **tests** directory.
    ///
    pub fn draw_sphere(
        &mut self,
        c: &[f64],
        r: f64,
        n_alpha: usize,
        n_theta: usize,
    ) -> Result<(Vec<Vec<f64>>, Vec<Vec<f64>>, Vec<Vec<f64>>), StrError> {
        if c.len() != 3 {
            return Err("c.len() must be equal to 3");
        }
        if n_alpha < 2 || n_theta < 2 {
            return Err("n_alpha and n_theta must be ≥ 2");
        }
        let (alpha_min, alpha_max) = (-180.0, 180.0);
        let (theta_min, theta_max) = (-90.0, 90.0);
        self.draw_superquadric(
            c,
            &[r, r, r],
            &[2.0, 2.0, 2.0],
            alpha_min,
            alpha_max,
            theta_min,
            theta_max,
            n_alpha,
            n_theta,
        )
    }
}

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