Fixed direct calls to x_values and y_values
Fixed direct calls to x_values and y_values


Former-commit-id: 669cd07ac29a3fe91a3c52144e84a6aaa3ff7057 [formerly 15533614892934e56ee30d5aa60c03677eaf4b48] [formerly 15533614892934e56ee30d5aa60c03677eaf4b48 [formerly 746f4f6ef86a1892260e61cd90f8bb6c7bf73d2a]]
Former-commit-id: a7603574f10627f7b77059c14a0e76d46e58727f
Former-commit-id: 7381e75a66fb5e6e0bac0fe84b9135b10d98a4a4
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine