Export

Raster formats

Call cvs.save() with a .png, .pdf, or .svg extension:

cvs.save("figure.png")   # PNG at the canvas DPI (default 300)
cvs.save("figure.pdf")   # PDF (vector, DPI ignored)
cvs.save("figure.svg")   # SVG (vector, DPI ignored)

The dpi parameter on Canvas controls raster resolution:

cvs = Canvas(x_max=20, y_max=15, dpi=150)   # lower DPI for faster preview

DPI is clamped to the range 1–1200.

Animated GIF export

For multi-frame output, use Animator instead of Canvas.save():

from econ_viz.animation import Animator

Animator(draw_frame, frames=frames).save("animation.gif", fps=12, dpi=120)

See the Animation page for parameter, price, income, and budget-only sweep examples.

Interactive window

Call cvs.show() to open a live matplotlib window instead of saving:

cvs.show()

In the CLI, omit --output to get the same behaviour:

econ-viz plot --model cobb-douglas --px 2 --py 3 --income 30

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