Support both touch and motion

[vitrinh282]

do you have support touch and motion in same sphere5

[szt243660543]

setting [self.library setTouchEvent:YES], this funciton support touch screen to select object.

[vitrinh282]

ah i mean that "[self.SZTLibrary interactiveMode:SZTModeInteractiveMotionWithTouch];"
but i just see move left right, not touch to move top and bottom , right ?

[szt243660543]

oh, I misunderstood. this sdk is not touch to move top and bottom, beause I don't think it's useful.

[vitrinh282]

that's ok, Just wanna to easy to see around , anyway thank for support me :)

[vitrinh282]

and what is formula to calculate position of hotspot that i add in VR ImageView base on point (X,Y ) of Image (Width,height)

[szt243660543]

you can see demo SZT_TouchDemo.

[image setObjectSize:200.0 Height:100.0];
// This method is used to set the width and height of the image. If this method is not declared, it read image default size.

[image setPosition:5.0 Y:0.0 Z:-20.0];
// beacuse the initial position of the camera is at vec(0,0,0), the vector direction is vec(0,0, -1), so the coordinates must be in the front.

[szt243660543]

I'm not sure what you want to know.

[vitrinh282]

here what i mean

[szt243660543]

The camera is facing in the direction of vec(0,0,-1)。

[vitrinh282]

i still don't see, i mean how you calculate X, Y, Z from x,y above

[szt243660543]

The coordinates are only relevant to the location of the camera, irrespective of the background ball, and the SDK default background ball radius is 150.I default that the camera is facing in the direction (0,0, -1), you can try to change the coordinates of the map to see the effect.

[vitrinh282]

no , i mean if i want put image somewhere in VRview LIKE on table or on chair, wall , and i just know position (x,y) and width , height of panorama image , so how do you know X, Y, Z to setposition for putting image exactly on table, chair, wall.....

[szt243660543]

If you want to be related to the background ball, then you have to use latitude and longitude to calculate the coordinates so that you can find the exact location.

[vitrinh282]

sorry but i try to change value of X,Y,Z to find formula, but i'm still not found. What's relative degree in your picture to help me get formula has relative on background ball.

[szt243660543]

You can understand that, your position is at the center of the ball vec(0,0,0), and VEC (0,0, -10) is in front of you,vec (-10,0,0) is on your left, vec (10,0,0) is on your right, and so on..

[szt243660543]

You can also use the script directly. I've done the latitude and longitude conversion. You just need to tell me the longitude latitude and the depth value. I can fix it for you.

how to use script: you can see Script specification:http://www.vrkongfu.com/doc/doc_en.html

[vitrinh282]

my side , I have point in image Panorama , with position (x,y) and size of image panorama (width,height).
So o want to put image (hotspot) at that point. with all data x, y ,width, height , how do you convert to X, Y, Z to setposition at that point same this image .
detail x =385, y=405 , width =2048, height = 1024 same on this

[vitrinh282]

Can you find it ?

[szt243660543]

How did you get the x = 385，y = 405?

[vitrinh282]

i Use paint on window

[szt243660543]

Use the following method, it can help you to latitude and longitude into coordinates.

• (GLKVector3)CalculateSphereSurfacePointWithLat:(float)lat Lon:(float)lon Depth:(float)depth
  {
  GLKVector3 X_Z;
  // 经
  X_Z.x = depth * sin(GLKMathDegreesToRadians(lon));
  X_Z.y = 0;
  X_Z.z = depth * - cos(GLKMathDegreesToRadians(lon));

  GLKVector3 Y_Z;
  // 纬
  Y_Z.x = 0;
  Y_Z.y = depth * sin(GLKMathDegreesToRadians(lat));
  Y_Z.z = depth * - cos(GLKMathDegreesToRadians(lat));

  if (lat == 0.0) {
  Y_Z = GLKVector3Make(0.0, 0.0, 0.0);
  }

  if (lon == 0.0) {
  X_Z = GLKVector3Make(0.0, 0.0, 0.0);
  }

  GLKVector3 dir = [MathC vector3Normalization:GLKVector3Add(X_Z, Y_Z)];
  if (lat == 0.0 && lon == 0.0) {
  dir = GLKVector3Make(0.0, 0.0, -1.0);
  }
  GLKVector3 point = GLKVector3MultiplyScalar(dir, depth);

  return point;
  }

// 规格化

• (GLKVector3)vector3Normalization:(GLKVector3)vec3
  {
  float sqr = sqrt(vec3.xvec3.x + vec3.yvec3.y + vec3.z*vec3.z);
  float tempx = vec3.x/sqr;
  float tempy = vec3.y/sqr;
  float tempz = vec3.z/sqr;

  return GLKVector3Make(tempx, tempy, tempz);
  }

[szt243660543]

The latitude and longitude information is similar to the world map map. From left to right longitude is -180 to 180, from bottom to top latitude is -90 to 90.

[vitrinh282]

what concer between setPosition(X,Y,Z) and latitude, longtude ? how do i calculate ? I don't understand
I just put image in point example above ? then how do you get position

[vitrinh282]

i tried with your method but result x,y ,z is big ,it was wrong when i setposition

[szt243660543]

What is the depth value of your incoming?

[vitrinh282]

150

[szt243660543]

the depth value need in 0 ~ 150，try 25. What is the latitude and longitude value？

[vitrinh282]

float lon = 360.0f * (float)x / ((float)image.size.width*(float)image.scale) -180.0f;
float lat = 90.0f - (180.0f * (float)y / ((float)image.size.height*(float)image.scale));

base on you description, i calculate long and lat follow formula above , but not right

[szt243660543]

Independent of the width of the background image, you can get the coordinates you want with just passing the values I provide.

[szt243660543]

Because the background map is already attached to the ball, no matter how large your image is, it is attached to a ball with a radius of 150.

[vitrinh282]

i used your background image , image size in formula , its background

[vitrinh282]

do you develop from project md360player, that i want same on android, ios not support add plugin, so i need another solution , that's your project, so could you me .

[szt243660543]

This is not developed on md360player.so it is different from each other.

[vitrinh282]

ok , i got how to calculate position
about rotateto when i just add radianX image will rote up down,
radianY will rotate left right
but if I add two in same image will be wrong, you can try with your rotate demo change radianY 0 to 50

[vitrinh282]

And has a problem when i use Displaymode Normal, Screen will be same flashfly when phone is lock or pause state