void GUI3DDirectionArrow::handleMsg( ZMsg *msg ) {
if( zmsgIs(type,MouseClickOn) && zmsgIs(which,L) && zmsgIs(dir,D) ) {
startDrag = FVec2( zmsgF(localX), zmsgF(localY) );
startDragMat = mat;
requestExclusiveMouse( 1, 1 );
zMsgUsed();
sendMsg();
}
else if( zmsgIs(type,MouseReleaseDrag) ) {
requestExclusiveMouse( 1, 0 );
zMsgUsed();
}
else if( zmsgIs(type,MouseDrag) ) {
FVec2 mouseDelta( zmsgF(localX), zmsgF(localY) );
mouseDelta.sub( startDrag );
mouseDelta.mul( 0.03f );
mat = startDragMat;
FMat4 eye = mat;
eye.setTrans( FVec3::Origin );
eye.inverse();
FVec3 yEye = eye.mul( FVec3::YAxisMinus );
FVec3 xEye = eye.mul( FVec3::XAxis );
mat.cat( rotate3D( yEye, mouseDelta.x ) );
mat.cat( rotate3D( xEye, mouseDelta.y ) );
zMsgUsed();
sendMsg();
}
else if( zmsgIs(type,SetDir) ) {
FVec3 xaxis( zmsgF(x), zmsgF(y), zmsgF(z) );
xaxis.mul(-1.f);
FVec3 yaxis( 0.f, 1.f, 0.f );
yaxis.cross( xaxis );
FVec3 zaxis = yaxis;
zaxis.cross( xaxis );
xaxis.normalize();
yaxis.normalize();
zaxis.normalize();
mat.m[0][0] = xaxis.x;
mat.m[0][1] = xaxis.y;
mat.m[0][2] = xaxis.z;
mat.m[0][3] = 0.f;
mat.m[1][0] = yaxis.x;
mat.m[1][1] = yaxis.y;
mat.m[1][2] = yaxis.z;
mat.m[1][3] = 0.f;
mat.m[2][0] = zaxis.x;
mat.m[2][1] = zaxis.y;
mat.m[2][2] = zaxis.z;
mat.m[2][3] = 0.f;
mat.m[3][0] = 0.f;
mat.m[3][1] = 0.f;
mat.m[3][2] = 0.f;
mat.m[3][3] = 1.f;
}
}
void rotateImage(t_bunny_pixelarray *s,
t_bunny_pixelarray *d, double r)
{
t_mat3 m;
t_ivec2 incr;
t_color color;
t_ivec2 v[3];
t_vec3 tmp;
v[0] = ivec2(d->clipable.clip_width / 2, d->clipable.clip_height / 2);
v[2] = subiVec2(v[0], ivec2(s->clipable.clip_width / 2.0,
s->clipable.clip_height / 2.0));
m = mat3();
translate3(&m, to_vec2(v[0]));
rotate3D(&m, vec3(0, 0, -r));
translate3(&m, vec2(-v[0].x, -v[0].y));
incr.y = -1;
while (++incr.y < d->clipable.clip_height)
{
incr.x = -1;
while (++incr.x < d->clipable.clip_width)
{
tmp = multMatVec3(&m, vec3(incr.x, incr.y, 1));
v[1] = to_ivec2(vec2(tmp.x, tmp.y));
color.full = getPixel(s, subiVec2(v[1], v[2]));
tekpixel(d, &incr, &color);
}
}
}
//-------------------------------------------------------------------------
void FKCW_3D_Node::rotate3D(const FKCW_3D_Vector4&axis,float A)
{
float fValue = static_cast<float>(A*M_PI/180.0f);
rotate3D(axis, cosf(fValue), sinf(fValue));
}
/// <summary>
/// A utility function for obtaining a matrix that rotates a point with respect to the
/// axis (1, 0, 0), (0, 1, 0), (0, 0, 1)
/// </summary>
///
/// <param name="rotation">A vec3 of the form (x angle, y angle, z angle).</param>
inline glm::mat4 rotate3D(glm::vec3 rotation) {
return rotate3D(rotation, glm::vec3(1, 0, 0), glm::vec3(0, 1, 0), glm::vec3(0, 0, 1));
}
