3D Plotting

Source: 3d_plotting.f90

3D plotting (lines and surfaces) with axes, ticks, and labels.

• 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 one figure

• 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

Mixed Plots

Parametric Curve

Scatter Line Combo

Scatter Multiple

Scatter Sphere

Surface Filled Jet

Surface Filled Plasma

Surface Filled Viridis

Surface Gaussian

Surface Paraboloid