All diagrams should be easy for everyone to read. Astah provides several features to make your diagram presentations clean to increase its readability.

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Align objects horizontally

You can align objects so they line up along a horizontal axis.

  1. Select multiple objects.
  2. Go to [Alignment] – [Horizontal] and choose the aligning method you’d like.
    Align Horizontal

    Or you can choose the icon from the toolbar.
    Align Horizontal
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Align objects vertically

You can align objects so they line up along a vertical axis.

  1. Select multiple objects.
  2. Go to [Alignment] – [Vertical] and choose the aligning method you’d like.
    Align Vertical

    Or you can choose the icon from the toolbar.
    Align Vertical
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Align object sizes

You can change the size of multiple objects.

  1. Select multiple objects.
  2. Go to [Alignment] – [Adjust Size].
  3. Choosing [Width] changes all the object width to the same width as the widest one, and
    Choosing [Hight] changes all the objects to the same height as the highest one.
    Adjust Object Size

    Choosing [Specified Size] can let you directly enter width and height, or let all to be in the same size as the object you choose.
    Adjust object size in action
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Auto Layout

This menu arranges the model elements aligned hierarchically.

  1. Open a diagram.
  2. Go to [Alignment] – [Auto Layout] – [Vertical] or [Horizontal].
    Automatic Diagram Layout


  3. Objects will be alined accordingly.
    Automatic Diagram Layout

NOTES:

  • Automatic Layout does not work for Mind Maps.
  • Automatic Layout is available for Sequence diagrams in version 8.5 and later. However it does not work for CombinedFragments and the common elements such as free texts and shapes.