Subplot Demo

Subplot Demo

Source: subplot_demo.f90

Demonstration of subplot functionality using the stateful API.

  • 2x2 subplot grid: Four different mathematical functions arranged in a 2×2 grid
  • 1x3 subplot layout: Three polynomial functions arranged horizontally
  • Independent subplot titles and labels: Each subplot has its own title and axis labels
  • Multiple plot types: Different mathematical functions visualized in each subplot

use fortplot, only: figure, plot, xlabel, ylabel, title, savefig, subplot

! Create figure and subplot grid call figure(800, 600) call subplot(rows, cols, index) ! Create grid and switch to subplot

! Add content to current subplot call plot(x, y) call title('Subplot Title') call xlabel('X Label') call ylabel('Y Label')

! Save entire subplot grid call savefig('output.png')

  • output/example/fortran/subplot_demo/subplot_2x2_demo.png: 2×2 grid showing sine, cosine, damped oscillation, and quadratic functions

  • output/example/fortran/subplot_demo/subplot_1x3_demo.png: 1×3 layout showing linear, quadratic, and cubic functions

  • Top-left: sin(x)

  • Top-right: cos(x)
  • Bottom-left: Damped oscillation e^(-x/2) * cos(2x)

  • Bottom-right: Quadratic function x²/50

  • Left: Linear function x

  • Center: Quadratic function x²
  • Right: Cubic function x³

Files

  • subplot_demo.f90 - Source code
  • Generated media in output/example/fortran/subplot_demo/

Running

make example ARGS="subplot_demo"

Output

Subplot 1X3 Demo

subplot_1x3_demo.png

Subplot 2X2 Demo

subplot_2x2_demo.png