void cursorpos_callback(GLFWwindow* window, double xpos, double ypos)
{
if(!mouseButtonRightReleased)//Êó±êÓÒ¼üÍ϶¯
{
double xpos, ypos;
glfwGetCursorPos(window, &xpos, &ypos);
int width, height;
glfwGetWindowSize(window, &width, &height);
if(xpos < 0 || xpos >= width || ypos < 0 || ypos > height)
return ;
vec3 v1 = trackball_ptov(mouseButtonRightLastpos.x, mouseButtonRightLastpos.y, width, height);
vec3 v2 = trackball_ptov(xpos, ypos, width, height);
vec3 axis = cross(v1, v2);
float angle = acos(dot(v1, v2)) * 180 / M_PI;
camera = rotate(mat4(), angle, axis) * camera;//mat4_cast(angleAxis(angle, axis))ÓÐbug
mouseButtonRightLastpos.x = xpos;
mouseButtonRightLastpos.y = ypos;
}
}
void mouseMotion(int x, int y)
{
float curPos[3], dx, dy, dz;
trackball_ptov(x, y, winWidth, winHeight, curPos);
if(trackingMouse)
{
dx = curPos[0] - lastPos[0];
dy = curPos[1] - lastPos[1];
dz = curPos[2] - lastPos[2];
if (dx || dy || dz) {
angle = 90.0F * sqrt(dx*dx + dy*dy + dz*dz);
axis[0] = lastPos[1]*curPos[2] - lastPos[2]*curPos[1];
axis[1] = lastPos[2]*curPos[0] - lastPos[0]*curPos[2];
axis[2] = lastPos[0]*curPos[1] - lastPos[1]*curPos[0];
lastPos[0] = curPos[0];
lastPos[1] = curPos[1];
lastPos[2] = curPos[2];
}
}
glutPostRedisplay();
}
void startMotion(int x, int y)
{
trackingMouse = true;
redrawContinue = false;
startX = x; startY = y;
curx = x; cury = y;
trackball_ptov(x, y, winWidth, winHeight, lastPos);
trackballMove=true;
}
void startMotion(long time, int button, int x, int y) {
if (!trackballEnabled) return;
trackingMouse = true;
redrawContinue = false;
startX = x; startY = y;
curx = x; cury = y;
trackball_ptov(x, y, winWidth, winHeight, lastPos);
trackballMove = true;
}
void mouseMotion(int x, int y) {
float curPos[3], dx, dy, dz;
if (zoomState == false && shiftState == false) {
trackball_ptov(x, y, winWidth, winHeight, curPos);
dx = curPos[0] - lastPos[0];
dy = curPos[1] - lastPos[1];
dz = curPos[2] - lastPos[2];
if (dx||dy||dz) {
angle = 90.0 * sqrt(dx*dx + dy*dy + dz*dz);
axis[0] = lastPos[1]*curPos[2] - lastPos[2]*curPos[1];
axis[1] = lastPos[2]*curPos[0] - lastPos[0]*curPos[2];
axis[2] = lastPos[0]*curPos[1] - lastPos[1]*curPos[0];
lastPos[0] = curPos[0];
lastPos[1] = curPos[1];
lastPos[2] = curPos[2];
}
}
else if (zoomState == true) {
curPos[1] = y;
dy = curPos[1] - lastPos[1];
if (dy) {
modelTrans[2] += dy * 0.01;
lastPos[1] = curPos[1];
}
}
else if (shiftState == true) {
curPos[0] = x;
curPos[1] = y;
dx = curPos[0] - lastPos[0];
dy = curPos[1] - lastPos[1];
if (dx) {
modelTrans[0] += dx * 0.01;
lastPos[0] = curPos[0];
}
if (dy) {
modelTrans[1] -= dy * 0.01;
lastPos[1] = curPos[1];
}
}
glutPostRedisplay( );
}
void
mouseMotion(int x, int y)
{
float curPos[3], dx, dy, dz;
trackball_ptov(x, y, winWidth, winHeight, curPos);
if(trackingMouse)
{
dx = curPos[0] - lastPos[0];
dy = curPos[1] - lastPos[1];
dz = curPos[2] - lastPos[2];
if (dx || dy || dz) {
angle = 180.0 * sqrt(dx*dx + dy*dy + dz*dz)/M_PI;
axis[0] = lastPos[1]*curPos[2] - lastPos[2]*curPos[1];
axis[1] = lastPos[2]*curPos[0] - lastPos[0]*curPos[2];
axis[2] = lastPos[0]*curPos[1] - lastPos[1]*curPos[0];
lastPos[0] = curPos[0];
lastPos[1] = curPos[1];
lastPos[2] = curPos[2];
}
glMatrixMode(GL_MODELVIEW);
GLfloat curMvM[16];
glGetFloatv(GL_MODELVIEW_MATRIX,curMvM);
glLoadIdentity();
glRotatef(angle, axis[0], axis[1], axis[2]);
glMultMatrixf(curMvM);
glPushMatrix();
glGetFloatv(GL_MODELVIEW_MATRIX,curMvM);
glLoadIdentity();
glTranslatef(0, 0, 0);
glMultMatrixf(curMvM);
}
glutPostRedisplay();
}
void startMotion(long time, int button, int x, int y) {
startX = x; startY = y;
trackball_ptov(x, y, winWidth, winHeight, lastPos);
trackballMove = true;
}
