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Stage

Zoom canvas and camera path

面向教师

The whole course as one large surface, the presentation as a flight from stop to stop — and within a slide stops that are zoomed in one after another in time with the voice.

用途#

Show connections: first the whole, then the detail. The canvas makes the structure of a course visible, the camera path directs attention to what is being talked about.

使用方法#

操作路径CoursePublishPresentAs zoom canvas

  1. 1Open “Publish” → “Present” → “As zoom canvas” (also from the workshop cockpit).
  2. 2Choose “Mode”: “Presentation” or “Arrange”.
  3. 3Presentation: “Play” flies the path, at every slide the speaker speaks. Whoever zooms or pans themselves stops it; “Next (→)” continues, “Overview (O)” shows the whole course, “Full screen (F)”.
  4. 4Arrange: clicking a slide selects it (several with Shift), dragging moves, the round handle changes the size; fine-tune “Size” and “Rotation”; “Arrangement” circle, row or spiral; choose “Background” (图 1).
    图 1 The toolbar of the zoom canvas: arrangement, size, rotation, background and the path.
    The toolbar of the zoom canvas: arrangement, size, rotation, background and the path.

    图 1 The toolbar of the zoom canvas: arrangement, size, rotation, background and the path.

  5. 5Maintain the “Path”: insert selected slides as a stop (“Slide”), show several together (“Group”), zoom into a detail (“Section”) or “Default” (overview → per module overview and slides → overview). Order stops with “Up”/“Down” or remove them.
  6. 6“Save this canvas” — the header shows “saved” with the time or “Suggestion — not yet saved”.
  7. 7Camera path within a slide: in the slide editor “Insert” → “Camera path” (see below).

设置与开关#

功能目录中没有独立开关——该功能属于其所在环境。

  • Part of the module “Course Studio”; the camera path belongs to the new slide editor.

Kinds of stops#

  • Overview — the whole course
  • Slide — one slide
  • Group — several slides together
  • Section — a detail of a slide that is zoomed into

Camera path within a slide#

  • In the slide editor “Insert” → “Camera path”: add “Stop around the selection” or “Whole slide”; without stops the slide stays still.
  • On the slide drag a stop at its edge or its number, drag a corner to make it larger or smaller — it keeps the aspect ratio of the slide.
  • In the list “Earlier”, “Later” or “Delete stop”.
  • The “Camera path timeline” shows when the camera moves to which point: at the markers ⟨r⟩ in the narration; without matching markers evenly over the speaking time; without narration 2.5 seconds per stop.
  • “Test run” plays the path — space pauses, arrows jump from stop to stop, Esc closes.

The timing of the stops follows the same rule as the build-ups in the player (markers ⟨r⟩ in the narration); a guard compares the editor's calculation with the player's.

Who may do what#

Every author of the course; the canvas requires signing in and saves per course.

提示#

  • Keys of the canvas: ← and → (or Page Up/Down) for previous and next stop, Home or O for the overview, F for full screen; in presentation mode also the space bar.
  • Dragging an empty area pans, the mouse wheel zooms. A click on a stop in the list flies there; new stops are inserted after the marked one.
  • Background music gets quieter during speech.

相关功能#

背景知识