Activate Angle Calculation

Activate Transformation

Change Camera position

Selected Element

ZOOM

CAMERA:

-Rotation around the center of the scene +
-Translation according to the current view +
-Zoom IN/OUT + or
-Change camera position: CLick on "CHANGE CAMERA POSITION" buttons (toolbar)

INTERACTIONS WITH BLOCKS

-Grab Block: on block
-Drag block: on block +
-Snap blocks: Drag/Drop block near another block (if the second
  block is a valid "neighbour" block it will be highlighted)
-Move all snapped blocks: Drag/Drop parent block of snapping chain
  (the parent block of the chain is highlighted)
-De-Snap of the selected block: Drag/Drop leaf block of snapping chain
-Show blocks and faces name: Press Key "H" or click on "Show/Hide Name" button (toolbar)-->
-Reset the position of the blocks: Click on "RESET" button (Toolbar)-->
-Activate the trasparency:Click on "TOGGLE OPACITY" button (Toolbar)

TRANSFORMATIONS:

-Enable trasformations from the toolbar
-Translate/Rotate Button + Drag the Traslation/Rotation Axis (which appear on
  the last selected block) --> Translation/Rotation of the block
  according to the selected axis (if the block is parent block of a
  snapping chain, the whole chain will be translated/rotated)

DEFICIT ANGLE CALCULATION:

-Enable Deficit Angle Calculation from the toolbar
-Complete a correct configuration of 4 blocks along the desired direction
  (Radial,Longitudinal,Latitudinal).
  Activate the transparency of the block in order to see the overlap/gap
  between the blocks.
  Select the faces of the blocks which create the overlap/gap by clicking
  with the left button of the mouse along the direction of the desidered face
  (click till the target face will be highlighted).
  Click the SHIFT button and select the second face operating as above.
  When the selection is completed the Deficit Angle and the Areas of the faces
  shoud appear automatically.

The User asks to take control of the scene