snap_ortho()

void MayaFlux::Kinesis::snap_ortho	(	NavigationState &	state,
		int	view
	)

Snap to a named ortho view.

Preserves the current distance from the origin. Yaw/pitch are set to exact axis-aligned values. The top view uses pitch = -89 degrees to avoid the degenerate lookAt case at exactly -90 degrees.

Parameters

state	Navigation state (eye, yaw, pitch mutated)
view	0 = front (+Z), 1 = right (+X), 2 = top (+Y), 3 = flip opposite

Definition at line 76 of file NavigationState.cpp.

{
    const float dist = glm::length(st.eye);
 
    switch (view) {
    case 0: // front: camera on +Z looking toward -Z
        st.eye = glm::vec3(0.0F, 0.0F, dist);
        st.yaw = 0.0F;
        st.pitch = 0.0F;
        break;
    case 1: // right: camera on +X looking toward -X
        st.eye = glm::vec3(dist, 0.0F, 0.0F);
        st.yaw = glm::radians(-90.0F);
        st.pitch = 0.0F;
        break;
    case 2: // top: camera on +Y looking straight down
        st.eye = glm::vec3(0.0F, dist, 0.0F);
        st.yaw = 0.0F;
        st.pitch = glm::radians(-89.0F);
        break;
    case 3: // flip: mirror through origin
        st.eye = -st.eye;
        st.yaw = st.yaw + glm::pi<float>();
        st.pitch = -st.pitch;
        break;
    default:
        break;
    }
}

References MayaFlux::Kinesis::NavigationState::eye, MayaFlux::Kinesis::NavigationState::pitch, and MayaFlux::Kinesis::NavigationState::yaw.

Referenced by MayaFlux::bind_viewport_preset().

Here is the caller graph for this function: