Free IFC viewer Areddo

				Navigation and section planes
					
						Zoom
							Use the scroll-wheel to zoom in to- and out from the point of the cursor.  
							
						Fit to view
							left mouse click anywhere outside of the model-box to fit the box into view. 
							
						Spin model-box
							Hold the left mouse button while moving your mouse, the model will spin around the rotation point: 
							
						Panning the model-box
							Hold the left mouse button before moving until the cursor switches to the pan or pan/section plane cursor.
							
							Outside the model-box the cursor will switch to the pan cursor, and you can pan in any direction holding the left mouse button.
							
							Inside the model-box the cursor will switch to the pan/section plane cursor. To pan, simply move the mouse perpendicular to the direction of the section plane arrows. Moving in the direction of these arrows will initiate a section plane.  
							
						Viewpoints
							Hover on the edge of the model-box to see the cursor change in the viewpoint cursor. Left mouse click on the preferred view point to switch views. 
							
						Section planes
							Hold the left mouse on the preferred section plane point before moving until the cursor switches to the pan/section plane cursor. To move the section plane, move in the direction of either of the two purple arrows. Hold the left mouse button while moving the section plane, and release it to stop.
							
							Cut points on the inside of the model-box:
							
						    Cut points on the edges of the model-box: 
							
						Loop-modus
							Click the walk mode button  to initiate walk mode, click again to exit.
							
						Walk mode controls for mouse:
							- Use the mouse-wheel to walk back and forth in the direction of the cursor. 
							
							- Hold the left mouse button while moving the cursor to look around.
							
							- Hold the left mouse button and start moving after the pan cursor appears to pan. 
							
						Walk mode controls for keyboard:
							- Use the directional keys to move forward, backward, left and right. 
							
							- Page up: increase speed.
							
							- Page down: decrease walking speed, increase backward speed from standing still.

				Commands
					
						Open
							Activate the open command to launch a browser. Browse to the preferred directory and select the model(s) you wish to open and click 'open' or press enter.  
							
						Fast-reload
							Activate the fast-reload command to create an ADL file. The next time you load the IFC file Areddo will load the created ADL file which loads up to 10 times faster. It is also possible to directly load an ADL or send it without the corresponding IFC. ADL files can only be viewed with Areddo.  
							
						Perspective
							The perspective command switches between a parallel and perspective view of the model.    
							
						Layered walls
							The layered walls command switches between showing and hiding the individual layers of walls.    
							
						Clash view
						The clash view command switches between normal and clash view. After initiating the clash view for the first time, the clash detection starts. The progress is displayed in the top right corner of the top bar. The detection pauses on mouse movements. 
							
						Isolate model-box
							The isolate model box command wraps the model box around the model.   
							
						Undo
							The undo command makes the last action undone. Shortcut key for this command: Ctrl+z.    
							
						Highlights
							The highlights command turns highlights of objects under the cursors on and off.  
							
						Unhide all
							The Unhide all command reveals all the hidden elements in the model. You can also use the + key on the keyboard.    
							
						Pan action
							The pan action command initiates a pan action. After a pan action the command automatically switches off.    
							
						Cut action
							The cut action command initiates a cut action. After a pan action the command automatically switches off.  
							
						Measure
							The measure command switches the measure-tool. When activated start and end points can be marked on lines and points.
							
							The distance between these two points is then shown in milimeters. After a measure-action a new one can be executed right away.    
							
						Sun position
							The sun position command applies the sunposition in the direction of the active point of view.     
							
						Shadow
							The shadow command switches the shadow mode.

Object commands

Initiate object command

Right mouse click on an object to activate the object command strip, left mouse click on the preferred command.

						Hide object
							The hide object command hides the active object. To recall hidden objects use the unhide all command in the command strip. Or use the – and + keys on the keyboard.

						Isolate object				
							The isolate object command wraps the model box around the active object.

						Align model box
							The align model box command aligns the model box with the selected object.

Data fields and filters

						Data fields
							Click on the preferred data type to display its information on the data field. To close the field, click on the active data type.   
							
						PSet data field
							 To view the properties of elements, open the PSet data field and move the cursor over the objects in the model to see the properties appear in the PSet data field.      
							
						Filters
							 Check the filter boxes in the data fields to filter elements.
							
							 Check the main filter box in the top bar to turn all the filter boxes of the active data field on or off. When no data field is active, the main filter box will apply to all the data fields.
							
							 When a data type is filtered, the filter switch appears to the left of the data type button. Clicking the filter switch turns the filter on and off for the corresponding data field.