3D Plotting

3D Plotting

Source: 3d_plotting.f90

This comprehensive example demonstrates all 3D plotting capabilities in fortplot, consolidating features from multiple examples.

  • 3D Line Plots: Helices and parametric curves
  • 3D Scatter Plots: Multiple patterns and marker types
  • 3D Surface Plots: Mathematical functions and meshes
  • Mixed Plots: Combining 2D and 3D in single figures

  • Plot Combinations: Multiple 3D plot types together

  • 3d_helix.png - Basic 3D helix line plot

  • parametric_curve.png - Parametric spiral curve
  • scatter_sphere.png - 3D scatter in sphere pattern
  • scatter_multiple.png - Multiple scatter patterns with legend
  • surface_paraboloid.png - Paraboloid surface plot
  • surface_gaussian.png - Gaussian surface plot
  • mixed_plots.png - Combined 2D and 3D plots
  • scatter_line_combo.png - 3D scatter + line combination

call fig%add_3d_plot(x, y, z, label="3D Line")

call fig%add_scatter_3d(x, y, z, label="Scatter", marker='o')

call fig%add_surface(x_grid, y_grid, z_grid, label="Surface")

  • Automatic 3D Detection: fortplot automatically detects 3D data
  • No Special Initialization: Same fig%initialize() for 2D and 3D
  • Mixed Dimensionality: Can combine 2D and 3D plots in same figure
  • Surface Grid Requirements: size(z_grid,1) == size(x_grid) and size(z_grid,2) == size(y_grid)
  • Memory Management: Uses allocatable arrays for efficient memory usage

Files

  • 3d_plotting.f90 - Source code
  • Generated media in output/example/fortran/3d_plotting/

Running

make example ARGS="3d_plotting"

Output

3D Helix

3d_helix.png

Mixed Plots

mixed_plots.png

Parametric Curve

parametric_curve.png

Scatter Line Combo

scatter_line_combo.png

Scatter Multiple

scatter_multiple.png

Scatter Sphere

scatter_sphere.png

Surface Gaussian

surface_gaussian.png

Surface Paraboloid

surface_paraboloid.png