source: trunk/packages/vizservers/nanovis/NvCamera.h @ 1215

Last change on this file since 1215 was 1215, checked in by gah, 16 years ago

changes to allow panning and zooming (via scrollwhell)

File size: 2.2 KB
Line 
1
2/*
3 * ----------------------------------------------------------------------
4 * NvCamera.h : NvCamera class
5 *
6 * ======================================================================
7 *  AUTHOR:  Wei Qiao <qiaow@purdue.edu>
8 *           Purdue Rendering and Perceptualization Lab (PURPL)
9 *
10 *  Copyright (c) 2004-2006  Purdue Research Foundation
11 *
12 *  See the file "license.terms" for information on usage and
13 *  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14 * ======================================================================
15 */
16
17#ifndef _CAMERA_H_
18#define _CAMERA_H_
19
20#include "Vector3.h"
21
22class NvCamera {
23
24    Vector3 location_;          //Location of the camera in the scene
25    Vector3 target_;            //Location the camera is looking at. 
26                                //location and target: two points define the
27                                //line-of-sight
28    Vector3 angle_;             //rotation angles of camera along x, y, z
29    int width_;                 //screen width
30    int height_;                //screen height
31    int startX_;
32    int startY_;
33
34public:
35    ~NvCamera(void) {
36        /*empty*/
37    }   
38    NvCamera(int startx, int starty, int w, int h,
39             float loc_x, float loc_y, float loc_z,
40             float target_x, float target_y, float target_z,
41             float angle_x, float angle_y, float angle_z);
42
43    //move location of camera
44    void x(double loc_x) {
45        location_.x = loc_x;
46    }
47    float x(void) {
48        return location_.x;
49    }
50    void y(double loc_y) {
51        location_.y = loc_y;
52    }
53    float y(void) {
54        return location_.y;
55    }
56    void z(double loc_z) {
57        location_.z = loc_z;
58    }
59    float z(void) {
60        return location_.z;
61    }
62
63    void aim(double target_x, double target_y, double target_z) {
64        target_ = Vector3(target_x, target_y, target_z);
65    }
66    Vector3 aim(void) {
67        return target_;
68    }
69    void rotate(double angle_x, double angle_y, double angle_z) {
70        angle_ = Vector3(angle_x, angle_y, angle_z);
71    }
72    void rotate(Vector3 angle) {
73        angle_ = angle;
74    }
75    Vector3 rotate(void) {
76        return angle_;
77    }
78    void set_screen_size(int sx, int sy, int w, int h) {
79        width_ = w, height_ = h;
80        startX_ = sx, startY_ = sy;
81    }
82    void activate(void); //make the camera setting active, this has to be
83                         //called before drawing things.
84};
85
86#endif
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