Animation

This example demonstrates creating animated plots and saving to video files.

Files

• save_animation_demo.f90 - Animation saving example
• 📹 Download animation.mp4 - Example output video

Running

make example ARGS="save_animation_demo"

Features Demonstrated

• Frame generation: Create individual frames
• Video export: Save as MP4 using ffmpeg
• Time evolution: Animate changing data
• Smooth transitions: Proper frame timing

Animation Workflow

1. Initialize animation: Set frame rate and duration
2. Generate frames: Update data for each time step
3. Save frames: Store as temporary images
4. Create video: Use ffmpeg to combine frames

Requirements

• ffmpeg: Must be installed for video generation
• Frame rate: Typically 30 fps for smooth playback
• Resolution: Match your figure size

Example Code Structure

! Initialize animation
call anim%init(fps=30, duration=5.0)

! Generate frames
do i = 1, n_frames
    ! Update data
    call update_data(t)

    ! Plot frame
    call fig%clear()
    call fig%add_plot(x, y)

    ! Add frame
    call anim%add_frame(fig)
end do

! Save video
call anim%save('animation.mp4')