# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. include # GGVIEW -- Get the viewport of the current WCS. procedure ggview (gp, x1, x2, y1, y2) pointer gp # graphics descriptor real x1, x2 # range of NDC in X (output) real y1, y2 # range of NDC in Y (output) pointer w begin w = GP_WCSPTR (gp, GP_WCS(gp)) x1 = WCS_SX1(w) x2 = WCS_SX2(w) y1 = WCS_SY1(w) y2 = WCS_SY2(w) end