Control Model display perspective

 

1 using unityengine; 2 using system. collections; 3 4 public class cameracontrol: monobehaviour {5 Public transform target; 6 public float distance = 5f; // scaling factor 7 public float mixdistance = 2; // The nearest distance from the camera to the object. The smaller the camera is, the larger the magnification is. 8 public float maxdistance = 10. // the maximum distance from the camera to the object, the larger the scale-out, the higher the 9 10 public float xspeed = 2500000f; 11 public float yspeed = 1200000f; 12 13 public float yminlimit =-80; // angle limiting factor 14 public float ymaxlimit = 80; 15 16 public float x = 0.0f; // camera position 17 public float y = 0.0f; 18 private vector2 oldposition1; 19 private vector2 oldposition2; 20 // use this for initialization 21 void start () {22 vector3 angles = transform. eulerangles; 23 x = angles. y; 24 y = angles. x; 25 // This. transform. position = target. transform. position + new vector3 (0, 0, 2); // assign the camera position 26 27 // make the rigid body not change rotation 28 If (getcomponent <Rigidbody> ()) 29 getcomponent <Rigidbody> (). freezerotation = true; 30} 31 32 33 // update is called once per frame 34 void Update () 35 {36 IF (input. touchcount = 1) 37 {38 39 if (input. gettouch (0 ). phase = touchphase. moved) 40 {41 42 X + = input. getaxis ("Mouse X") * xspeed * 0.02f; 43 y-= input. getaxis ("Mouse y") * yspeed * 0.02f; 44 45} 46} 47 48 49 If (input. touchcount> 1) 50 {51 52 If (input. gettouch (0 ). phase = touchphase. moved | input. gettouch (1 ). phase = touchphase. moved) 53 {54 55 var tempposition1 = input. gettouch (0 ). position; 56 var tempposition2 = input. gettouch (1 ). position; 57 if (isenlarge (oldposition1, oldposition2, tempposition1, tempposition2) 58 {59 If (distance> mixdistance) 60 {61 distance-= 0.5f; 62} 63} 64 else 65 {66 If (distance <maxdistance) 67 {68 distance + = 0.5f; 69} 70} 71 oldposition1 = tempposition1; 72 oldposition2 = tempposition2; 73} 74} 75} 76 bool isenlarge (vector2 OP1, vector2 OP2, vector2 Np1, vector2 NP2) 77 {78 var leng1 = mathf. SQRT (op1.x-op2.x) * (op1.x-op2.x) + (op1.y-op2.y) * (op1.y-op2.y); 79 var leng2 = mathf. SQRT (np1.x-np2.x) * (np1.x-np2.x) + (np1.y-np2.y) * (np1.y-np2.y); 80 If (leng1 <leng2) 81 {82 return true; 83} else 84 {85 return false; 86} 87} 88 void lateupdate () 89 {90 if (target) 91 {92 93 y = clampangle (Y, yminlimit, ymaxlimit ); 94 var rotation = Quaternion. euler (Y, X, 0); 95 var position = rotation * New vector3 (0.0f, 0.0f,-distance) + target. position; 96 97 transform. rotation = rotation; 98 transform. position = position; 99} 100} 101 static float clampangle (float angle, float min, float max) 102 {103 If (angle <-360) 104 angle + = 360; 105 if (angle> 360) 106 angle-= 360; 107 return mathf. clamp (angle, Min, max); 108} 109}

 

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Control Model display perspective