3D view rotation challenge

which is fastest way to rotate view aligned with element plane but keeping view Z rotation up?

The attached file is simplified workflow when dealing with reality models. The issue is that if reality mesh model of a building is not aligned with drawing axis then it is not easy to rotate view which is aligned with facades. As it is not parametric model there are no straight lines to snap to.

Challenge:

Create 4 saved views(or ACS) so each view is aligned with each of mesh faces(red) but keeping Z axis vertical so the black outline is orthogonal. Outline is not snappable and is only a reference it is allowed to snap to red mesh only.

Correct result:


Wrong:

Rotate_challenge3D.dgn

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  • the black outline is orthogonal. Outline is not snappable

    I assume the black outline is not available at all in the real situation. (only for our visual reference here, right?)

    My best guess for now is to
    draw a (here fat green) line with both ACS-Snaps on. (I show the line beforehand, delete it and show how I get there)

     
    I used Smartline. AccuSnap to any endpoint. "O" (Projects the point on the ACS-Plane) and Datapoint, then go along the edge. Hit "N" and Datapoint. 

    This will orient AccuDraw along the last to points on the XY-Plane.
    Then you may use "E" to rotate AccuDraw vertically

    Finally "RV" 


    OR: To get the "Side View" you can Rotate the view via the x-Axis (e.g. Keyin: "RV=-90")

     


    You can then immediately use undo to get rid of the auxiliary-line.

  • You can simply this method avoiding the creation/deletion of the green line:

    1. Activate the Element Selection tool
    2. Enable ACS Plane and ACS Plane Snap
    3. Tentative snap to a base corner of the red mesh & supply a data point
    4. Press O (with AccuDraw highlighted)
    5. Press RQ (with AccuDraw highlighted)
    6. Snap to other base corner of red mesh & supply a data point
    7. Press E (with AccuDraw highlighted) to rotate AccuDraw to the Front elevation
    8. Press RV (with AccuDraw highlighted)
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  • You can simply this method avoiding the creation/deletion of the green line:

    1. Activate the Element Selection tool
    2. Enable ACS Plane and ACS Plane Snap
    3. Tentative snap to a base corner of the red mesh & supply a data point
    4. Press O (with AccuDraw highlighted)
    5. Press RQ (with AccuDraw highlighted)
    6. Snap to other base corner of red mesh & supply a data point
    7. Press E (with AccuDraw highlighted) to rotate AccuDraw to the Front elevation
    8. Press RV (with AccuDraw highlighted)
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