Sandbox — LSD is in active testing. All systems operational·payments are test-mode (no real charges).

All docs

Docs/ API Reference/ Context/ viewer

Context· property

Context.viewer

the 3d/2d viewer surface, if a viewer is open

Python

viewer: Viewer

Returns Viewer — the viewer surface, or None

Example#

Python

@tool.command("demo/frame")
def frame(ctx: Context):
    if ctx.viewer:
        ctx.viewer.fit()

A lazily populated slot — None when no viewer is available. Use it to drive the camera, layers, and drawing on the open viewer.