UP3D UP500 User Manual page 40

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A2. Click the left button to start dragging and dropping the mouse to construct an arbitrary
polygon area and release the mouse, all data in the range of the polygon (including the
uncovered area) is marked in red.
A3.If the model is mesh (non-point cloud), hold down the Alt key and select only the visible
area when selecting an area(the covered area will not be selected)
A4.Hold down the Ctrl key when selecting an area, so you can deselect the area in the selected
red area.
A5.The mouse is not released when the area is selected, you can press 【Esc】to cancel the
selection.
【Sphere selection tool】
Operation:
A1.Click 【Sphere selection tool】 to start or close the sphere selection tool. The sphere
assisting selection will be displayed in the scene when activated.
A2.Click the left button to start to drag the mouse to make a selection. All data (including the
covered area) in the sphere range is marked in red;
A3.Hold down the Ctrl key when selecting an area, so you can deselect the area in the selected
red area.
A4.Press Ctrl+wheel to instantly adjust the size of the sphere.
【Connected region selection tool】
Connected region are areas that are connected together when the model is only a mesh (not a point
cloud). A mesh model may have one connected region or multiple connected regions. The boundary
of the mesh is the boundary of the connected region.
Operation:
A1.Click 【Connected region selection tool】to enable or disable the connected region selection
function.
A2.Click on a separate connected region and select the connected area, which is marked in red.
A3.Selecting multiple independent connected regions with a rectangle frame, you can select
multiple connected regions and marked in red.
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