3D View

This document describes how to navigate in 3D view in Gemini Terrain.

Display Types

The model can be displayed in two main ways: * As a perspective with vanishing point – provides a realistic depth effect * As an isometric projection – maintains proportions regardless of distance

Navigation Tools

In 3D view, you get access to several specialized icons for rendering and 3D navigation. These tools are placed in different locations in the interface: * At the end of the toolbar * Grouped in the lower left corner of the 3D window

Overview of 3D navigation tools and their placement in the interface

Rendering Functions

If you select the rendering toolset, you will find several advanced functions for navigating in 3D view. These functions are not described in this chapter.

Use Perspective Display

Icon for activating perspective view

You can choose perspective view of the content on the screen by clicking this icon. This is the most common display type for 3D models.

Sections with Perspective

You can also create specific sections of the drawing by specifying camera and target point. These sections can also be displayed and processed with perspective effect.

Navigating in 3D View

Rotating Around Target Point

How to rotate the 3D model:

1. Press and hold the left mouse button
2. Move the mouse to rotate the view
3. A green symbol appears representing the rotation point (target point)

Intelligent Target Point

When you hold down the left mouse button, the program will automatically search for pixel(s) on the screen and snap to the nearest object. The program looks for clean lines, points, or 3D surfaces to find the most natural rotation point.

Zooming to Object

Zooming to object works on the same principle as rotation – the program identifies relevant objects and uses them as reference points for zooming.

Panning in 3D

You can pan in the 3D view in two ways:

• With left mouse button: Hold down the left mouse button for a moment without moving the mouse, and then move the mouse
• With middle mouse button: Press and hold the middle mouse button and move the mouse

Enter Target Point and Camera Position

Icon for the tool that lets you specify precise target and camera positions

With this tool, you can specify exactly where the camera should be placed and what it should be aimed at. The 3D model will then be displayed according to these marked positions.

Procedure

1. Click the button for Enter target point and camera position
2. Specify target point – point and click the left mouse button where you want the camera to be aimed
3. Specify camera/eye point – point and click the left mouse button where you want the camera to be placed
4. The view updates automatically with the new perspective

Precise Coordinates

If you want to specify exact coordinates for the target and camera points, you can press the right mouse button after activating the tool. This opens a dialog box where you can enter exact coordinates for both points.