VideoCAD

3D Models

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3D Models

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3D Models

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On the Navi tab, you can examine in detail the 3D model using the tools of navigation in 3D space. This can be useful when working with 3D models-territories.

 

Navigation interface is a simplified version of the interface of the 3D World.

Click to expand
Click to expand

 

Enable navigation

 

If the checkbox is not checked,  the selected projection of 3D model is displayed, ready to save. If the checkbox is checked, the 3D navigation interface is active.

Using the 3D interface, you can examine in detail features of the 3D model, "visit" in the premises of the 3D model-building, "walk" on the floors etc.

 

Functions of mouse buttons

 

On the left mouse button the Orbit  is assigned - moving  the mouse cursor with the left button pressed rotates the 3D model in the space (or rotates the virtual viewer around the 3D model);

 

Function of the left button can be changed.

 

On the middle mouse button the Move is assigned - moving 3D model in the field of view plane;

 

On the rotation of the mouse wheel the Zoom tool is assigned - wheel rotation zooms in or out the point in the 3D space, where the mouse cursor is.

 

Pressed Ctrl reduces step of zooming;

Step and direction of zooming by turning the mouse wheel can be changed widely using Navigation>Scale factor in the Options box .

 

On the right mouse button the Look around Look around  is assigned  - rotates the sight direction standing the virtual viewer stationary.

 

3D navigation buttons

 

By these buttons you can change function of the left mouse button.

 

Orbit - moving  the mouse cursor with the left button pressed rotates the 3D model in the space (or rotates the virtual viewer around the 3D model).

This is default function of the left mouse button.

 

Move - moving 3D model in the field of view plane.

This is default function of the left middle mouse button. The middle mouse button works like in the Graphics window.

 

Zoom - moving the mouse cursor along vertical zooms in or out the point in the 3D space at the center of the display area. By double clicking in the display area you can specify a new center point.

Wheel rotation zooms in or out the point in the 3D space, where the mouse cursor is. The Zoom tool works like in the Graphics window.

 

Pressed Ctrl reduces step of zooming;

Step and direction of zooming by turning the mouse wheel can be changed widely using Navigation>Scale factor in the Options box .

 

Look around -  rotates the sight direction standing the virtual viewer stationary.

This is default function of the right mouse button.

 

Walk - controls movement of the virtual viewer in virtual horizontal plane. Pressing the left mouse button fixes the starting point, moving the cursor from the starting point with left mouse button pressed sets the direction and speed of movement.

 

Zoom frame . Pressing the left mouse button specifies the first point of the zoom frame,  moving the cursor with left mouse button pressed and releasing the left mouse button generates the ZOOM frame. After releasing the mouse button the virtual viewer will approach to content of the frame.

 

This tool works like the function of the right mouse button in the Graphics window.

 

Fixed views buttons

 

Allow to quick look at the model from any of 6 sides:Front view,Left view,Right view,Back view,Top view,Bottom view.

 

Step backward and Step forward buttons

 

Allows to move on the chain of previous views backward and forward.

 

Sight direction of the virtual viewer

 

Sight direction of the virtual viewer in vertical and horizontal planes and its view angle are represented as a camera.

 

Parameters of the model

 

On the bottom of the tab important parameters of the 3D model are displayed:

 

Size: - Sizes of the 3D model in the format X:Y:Height.

Sizes of instances of the 3D model along each coordinate axis can be set independently on the Current construction parameter panel.

 

ID of the 3D Model. VideoCAD recognizes 3D models not by names, but by integer IDs. All 3D Models in the library must have different IDs.

 

Number of vertices (Vert) and faces (Faces) in the 3D model. The more vertices and faces are, the more complicated the 3D model, the more computational power is required for calculating shadows from this 3D model in the Graphics window. For 3D models-territories with shadow calculation it is recommended to use 3D models with little number of vertices to increase drawing speed.

 

Shadow calculation in the 3D World less dependent on the complexity of 3D models, than the calculation in the Graphics window.