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Move Boundary

Existing boundaries (i.e. External, Material, Water Table, Piezometric Line or Tension Crack), can be moved, using the Move Boundary option. Move Boundary is available in the menu, toolbar, or as a right-click option for individual boundaries.

A Move can be defined by two points, a relative move, or by a distance and angle, as described below.

To move boundaries:

  1. Select Move Boundary Boundary Moving Icon from the toolbar or the Edit sub-menu of the Boundaries menu.
  2. Use the mouse to select the boundaries you would like to move.
  3. When you are finished selecting, press Enter or right-click and select Done Selection.
  4. You will then be prompted to enter two points defining the move. You can enter the points graphically with the mouse, or with the keyboard in the prompt line. NOTE:
    • The two points defining the move can be anywhere in the x,y plane, only their relative positions are important.
    • If you enter 0 , 0 in the prompt line, as the first point defining the move, then you can enter the actual x and y displacement as the second point. For example, if you want to move a boundary 5 meters to the left, enter 0 , 0 as the base point, and –5 , 0 as the second point.
    • A move can also be defined in terms of relative coordinates, or a distance and angle. See below for details.
  5. After the second point is entered, all of the boundaries selected in Step 2 will be translated from their original positions according to the vector defined by the two points.

Relative Move

Rather than defining a move by entering two points, a move can also be defined by entering the RELATIVE move, in the X and Y directions. To do this:

  • In Step 4 (above), rather than enter a base point for the move, enter the RELATIVE move in the prompt line, using the following data entry convention:
  • Type the @ symbol in front of the relative move coordinates, and press Enter, as follows:
  • @DX DY <Enter>
  • For example, in the prompt line enter @-1 2 <Enter>, to move a boundary 1 unit to the left and 2 units up.

The RELATIVE move option is very useful, because in many cases, a move is defined in terms of relative displacements, rather than a base point and a second point.

Distance and Angle Move

A move can also be defined in terms of a distance and angle (i.e. direction). To do this:

  • In Step 4 (above), rather than enter a base point for the move, enter the DISTANCE and ANGLE defining the move, in the prompt line, using the following data entry convention
  • Type the @ symbol followed by the DISTANCE followed by the < symbol followed by the ANGLE, and press Enter, as follows:
  • @DIST<ANGLE <Enter>
  • For example, in the prompt line enter @5<90 <Enter>, to move a boundary 5 units in the UP direction. Angles are in degrees, and measured from the positive horizontal axis.

Right Click Shortcut

The Right Mouse button can be used as a shortcut to MOVE individual boundaries. To do this:

  1. Locate the cursor over a boundary that you wish to move (e.g. a Material Boundary, or a Water Table).
  2. Click the RIGHT mouse button, and the boundary will be "selected".
  3. A popup menu will appear, from which you can select the Move Boundary option.
  4. Select Move Boundary. As described above a move can be defined by:
    • Two points (a base point and a second point)
    • Relative move
    • Distance and angle

See above for details about each of these options.

Moving the External Boundary

If you move the External Boundary, Slide2 will automatically move THE ENTIRE MODEL, along with the External Boundary. This includes ALL elements of your model, including material boundaries, support, slip surface and search entities, and all other model entities. When you select the External Boundary to move, you will notice that all other entities of your model also become selected. The user will find this convenient if they wish to transfer their entire model to different coordinates.

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