bool rotate_manipulator::handle_mouse_down(visionaray::mouse_event const& event) { auto bdisc = flip( bounding_disc(), camera_.get_viewport() ); if (bdisc.contains(event.get_pos()) && event.get_buttons() & buttons_) { dragging_ = true; auto brect = flip( bounding_rect(), camera_.get_viewport() ); ball_.down_pos = ball_.project( event.get_pos().x, event.get_pos().y, brect ); ball_.down_rotation = ball_.rotation; down_pos_ = event.get_pos(); // selected_ = select_from_mouse_pointer(event); return true; } else { return false; } }
void pan_manipulator::handle_mouse_move(visionaray::mouse_event const& event) { if (!dragging_) { return; } if (event.get_buttons() & buttons_) { auto w = camera_.get_viewport().w; auto h = camera_.get_viewport().h; auto dx = static_cast<float>(last_pos_.x - event.get_pos().x) / w; auto dy = -static_cast<float>(last_pos_.y - event.get_pos().y) / h; auto s = 2.0f * camera_.distance(); auto zaxis = normalize( camera_.eye() - camera_.center() ); auto yaxis = camera_.up(); auto xaxis = cross( yaxis, zaxis ); vec3 d = (dx * s) * xaxis + (dy * s) * yaxis; camera_.look_at( camera_.eye() + d, camera_.center() + d, camera_.up() ); last_pos_ = event.get_pos(); } camera_manipulator::handle_mouse_move(event); }
int rotate_manipulator::select_from_mouse_pointer(visionaray::mouse_event const& event) { auto scaling = get_scaling(model_matrix_); auto radius = length((scaling * vec4(size_, 1.0f)).xyz()) / 2.0f; vec2i pos( event.get_pos().x, camera_.get_viewport().h - 1 - event.get_pos().y ); int result = -1; for (int i = 0; i < 3; ++i) { auto modelview = camera_.get_view_matrix() * model_matrix_ * inverse(scaling); circle::for_each_line( [&](float x1, float y1, float x2, float y2) { auto v1 = rotate( vec3(0.0f, x1, y1), i ); auto v2 = rotate( vec3(0.0f, x2, y2), i ); vec3 win1; project(win1, v1, modelview, camera_.get_proj_matrix(), camera_.get_viewport()); vec3 win2; project(win2, v2, modelview, camera_.get_proj_matrix(), camera_.get_viewport()); auto minx = min(win1.x, win2.x); auto maxx = max(win1.x, win2.x); auto miny = min(win1.y, win2.y); auto maxy = max(win1.y, win2.y); minx -= 2; miny -= 2; maxx += 2; maxy += 2; recti bounds( static_cast<int>(floor(minx)), static_cast<int>(floor(miny)), static_cast<int>(ceil(abs(maxx - minx))), static_cast<int>(ceil(abs(maxy - miny))) ); if (bounds.contains(pos)) { result = i; return; } }, radius * ball_.radius ); } return result; }
void arcball_manipulator::handle_mouse_move(visionaray::mouse_event const& event) { bool buttons = event.get_buttons() & buttons_; bool modifiers = (modifiers_ == keyboard::NoKey && down_modifiers_ == keyboard::NoKey) || down_modifiers_ & modifiers_; if (dragging_ && buttons && modifiers) { // rotation vec3 curr_pos = ball_.project( event.get_pos().x, event.get_pos().y, camera_.get_viewport() ); ball_.rotation = quat::rotation(ball_.down_pos, curr_pos) * ball_.down_rotation; if (true) { // view transform mat4 rotation_matrix = rotation(conjugate(ball_.rotation)); vec4 eye4(0, 0, camera_.distance(), 1.0); eye4 = rotation_matrix * eye4; vec3 eye = vec3(eye4[0], eye4[1], eye4[2]); eye += camera_.center(); vec4 up4 = rotation_matrix(1); vec3 up(up4[0], up4[1], up4[2]); camera_.look_at(eye, camera_.center(), up); } else { // model transform mat4 model = rotation(ball_.rotation); VSNRAY_UNUSED(model); //camera_.set_model_matrix(model); } } camera_manipulator::handle_mouse_move(event); }
bool rotate_manipulator::handle_mouse_move(visionaray::mouse_event const& event) { auto bdisc = flip( bounding_disc(), camera_.get_viewport() ); mouse_over_ = bdisc.contains(event.get_pos()); if (dragging_ && event.get_buttons() & buttons_) { auto brect = flip( bounding_rect(), camera_.get_viewport() ); vec3 curr_pos = ball_.project( event.get_pos().x, event.get_pos().y, brect ); auto last_vsr = rotation(ball_.rotation); ball_.rotation = quat::rotation(ball_.down_pos, curr_pos) * ball_.down_rotation; auto vsr = rotation(ball_.rotation); auto trans = model_matrix_(3); model_matrix_.col3 = vec4(0.0f, 0.0f, 0.0f, 1.0f); auto vm = camera_.get_view_matrix(); vm.col3 = vec4(0.0f, 0.0f, 0.0f, 1.0f); model_matrix_ = inverse(vm) * vsr * inverse(last_vsr) * vm * model_matrix_; model_matrix_.col3 = trans; return true; } else { hovered_ = select_from_mouse_pointer(event); return false; } }
void arcball_manipulator::handle_mouse_down(visionaray::mouse_event const& event) { bool buttons = event.get_buttons() & buttons_; bool modifiers = (modifiers_ == keyboard::NoKey && event.get_modifiers() == keyboard::NoKey) || event.get_modifiers() & modifiers_; if (!dragging_ && buttons && modifiers) { dragging_ = true; ball_.down_pos = ball_.project( event.get_pos().x, event.get_pos().y, camera_.get_viewport() ); ball_.down_rotation = ball_.rotation; down_modifiers_ = event.get_modifiers(); } camera_manipulator::handle_mouse_down(event); }
void pan_manipulator::handle_mouse_down(visionaray::mouse_event const& event) { if (dragging_) { return; } dragging_ = true; // TODO: do this in base? last_pos_ = event.get_pos(); camera_manipulator::handle_mouse_down(event); }