Zooming and navigating

Kwave provides several ways to zoom and navigate, using keyboard shortcuts, menu commands, toolbar buttons and by using the mouse. The following sections should give an overview on how to use all of these functions.

Zooming in and out

  • zoom to whole signal: selects a zoom factor that makes the whole signal visible in the current window.

    • menu entry: ViewZoom to whole signal

    • toolbar button: zoom all button

  • zoom to 100%: zooms in up to a scale where on sample is represented by on pixel on the screen.

    • menu entry: ViewZoom to 100%

    • toolbar button: zoom to 100% button

  • zoom in: zooms in to see more details, magnifies by factor 3.

    • menu entry / keyboard shortcut: ViewZoom In (Ctrl++)

    • toolbar button: zoom in button

  • zoom out: zooms in to see less details, shrinks by factor 3.

    • menu entry / keyboard shortcut: ViewZoom Out (Ctrl+-)

    • toolbar button: zoom out button

  • zoom selection: zooms to a factor where the current selection is completely visible in the current view.

    • menu entry / keyboard shortcut: ViewZoom to Selection (Ctrl+Space)

    • toolbar button: zoom to selection button

  • select predefined zoom: select a zoom factor from the zoom combo box in the toolbar.

Scrolling left and right

  • scroll left: scrolls to the start of the signal by 1/3 of the current view.

    menu entry / keyboard shortcut: ViewScroll left (cursor Left)

    toolbar button: scroll left button

  • scroll right: scrolls to the end of the signal by 1/3 of the current view.

    menu entry / keyboard shortcut: ViewScroll right (cursor right)

    toolbar button: scroll right button

  • previous page: scrolls to the position right before the current view (left).

    menu entry / keyboard shortcut: ViewPrevious Page (Page up)

    toolbar button: previous page button

  • next page: scrolls to the position right after the current view (right).

    menu entry / keyboard shortcut: ViewNext Page (Page down)

    toolbar button: next page button

  • to begin: scrolls the current view so that it starts at the beginning of the signal.

    menu entry / keyboard shortcut: ViewBegin (Pos1)

  • to end: scrolls the current view so that it ends at the end of the signal.

    menu entry / keyboard shortcut: ViewEnd (End)

Using the overview

The main screen of Kwave shows a small overview of the whole signal above the horizontal scroll bar of the main window. This overview also provides some functionality for navigating:

  • single click with left mouse button: directly move the current view to the clicked position.

  • double click with left mouse button: directly move the current view to the clicked position and additionally zoom in.

  • double click with left mouse button, with shift pressed: directly move the current view to the clicked position and additionally zoom out.

Vertical zoom

You can zoom the current view vertically by pressing the Alt key and scrolling with the mouse wheel.