changed the expected type for HeatMap.z from Option<Vec<Z>> to Option<Vec<Vec<Z>>>

[tectin0]

With Vec<Vec<T>> as an input for HeatMap.z it infers that Z has the type Vec<T> instead of T. This prevents .zmin() and .zmax() from working.

Example:

use plotly::common::{ColorScalePalette, Font, Title};

use plotly::{HeatMap, Layout, Plot};

fn main() {
    let x = (0..100).map(|x| x as f64).collect::<Vec<f64>>();
    let y = (0..100).map(|y| y as f64).collect::<Vec<f64>>();
    let z: Vec<Vec<f64>> = x
        .iter()
        .map(|x| {
            y.iter()
                .map(|y| (x / 5.0).powf(2.0) + (y / 5.0).powf(2.0))
                .collect::<Vec<f64>>()
        })
        .collect::<Vec<Vec<f64>>>();

    let colorscale = ColorScalePalette::Jet;

    let trace = HeatMap::new(x, y, z)
        .zmin(400.0) // does not work expects a Vec<f64>
        .zmax(600.0) // same here
        .color_scale(colorscale.into());

    let layout = Layout::new().font(Font::new().size(32));

    let mut plot = Plot::new();
    plot.set_layout(layout);
    plot.add_trace(trace);

    plot.show();
}

Changing the type to Option<Vec<Vec<Z>> results in a correctly inferred type of Z and .zmin() and .zmax() work correctly

also added customized_heat_map function to showcase the working zmin and zmax

[tectin0]

Going to look into the failed tests