DAVID SLS-2 Manual do Utilizador descarregar pdf (Página 14)

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Scans after Alignment Fusion Result (with “Close Holes”)

• Hint: All scan movements can be undone separately with the “Undo” button .

• Hint: In case the automatic alignment does not find the right solution, you should activate “Contact

Pair Selection”. Subsequently you can help DAVID: When you click on the scans you want to align,

click precise at distinctive surface areas (e.g. tip of the nose) which are supposed to be in contact.

The size of the red circle next to the mouse pointer is relevant. If you wish to click on the contact

points very precisely, zoom in first. If you cannot click the contact spots precisely, zoom out so that

the red circle covers a larger area.

• Hint: You can save your single scans at any time. They will be saved in their current position and

rotation in space, so you won't have to align them again. Use the save buttons below the “List of

Scans”.

• Hint: After some alignment steps it can be helpful to “combine” several scans temporarily. Select two

or more scans in the List of Scans (check marks). Then click on them with the right mouse button,

and choose “Combine”. This puts the selected scans into one group temporarily and allows you to

tread them all as one. In our example, the Büssing bust, we might combine scans 1 and 4 and then

align scan 5 to that group. This way scan 5 would be aligned to both scans at the same time, which

includes more overlapping areas and thus can lead to a more precise alignment.

Right-click on the group's name in the list and choose “Uncombine” to separate the group again.

2. Scan Fusion

• Only visible scans will be fused, so select all scans with the button above the list.

• Increase “Resolution” carefully. This will increase computation time and memory consumtion.

• “Refinement” can improve precision and details in some cases, but it often causes artifacts. Please

test if it helps for your scans.

• Click “Fuse” to start the Fusion. This is a complex process which requires a computation time of

several seconds or minutes. All visible scans will be merged to one closed triangle mesh, removing

small artefacts. If the scans have textures, a fused texture will also be created. Optionally, all holes

will be closed.

• Finally you can use the “Save” button to export your fused 3D model as OBJ, STL or PLY file.

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DAVID SLS-2 Manual do Utilizador Página 14