Added the recipe 'vectorfieldplot' for plotting 2d vector field functions

[m0rninglightmountain]

Fixes #4890

Description

This Pull request adds a new recipe, Vectorfieldplot(), based on the Recipebase package. The recipe enhances the plotting capabilities by providing a straightforward method for visualizing 2D vector fields.

• Function Input: The plot accepts a single function as an argument, which defines the vector field to be visualized. This function should take two arguments (x, y coordinates) and return a 2-tuple representing the vector components (u, v).

• Plot Customization: The plot includes customizable attributes such as axis limits, grid lines, ticks, and labels. The vectors are plotted using a quiver plot style, with arrows representing the direction and magnitude of the field at each grid point. Here's the list of customizable attributes :

  Plot attributes

    xlabel 
    ylabel 
    title 
    xlims 
    ylims 
    xticks 
    yticks 
    grid 
    minorgrid 
    gridlinewidth 
    gridstyle 
    gridalpha 
    legend
  
  

Usage

This is the step-wise instruction to use vectorfieldplot :

1. Import the Plots package:

using Plots

2. Define the vector field function. For example, a simple rotational field can be defined as:

function rotational_field(x, y)
return (-y, x) 
end

3. Create a VectorFieldPlot with the defined function:

vectorfieldplot(rotational_field)

4. Customize the plot if needed by adjusting the steps, axis limits, and other attributes:

VectorFieldPlot(rotational_field, steps=25, xlims=(-5, 5), ylims=(-5, 5))

Here's the graph of the vector field function generated using the above code:

Things to consider

• Does it work on log scales?
• Does it work in layouts?
• Does it work in recipes?
• Does it work with multiple series in one call?
• PR includes or updates tests?
• PR includes or updates documentation?