;+ ; ;spd_ui_draw_object method: pt2norm ; ; ;Convert pts into draw area normal coordinates. ;Inputs: ; Value(numeric type, or array of numeric types): the point value(s) to be converted ; xy(boolean): 0: convert for x-axis, 1 convert for y-axis.(because screen dims differ, axis must be specified) ; ;Returns, the value in normalized coordinates ; ; ;$LastChangedBy: pcruce $ ;$LastChangedDate: 2014-05-14 11:58:59 -0700 (Wed, 14 May 2014) $ ;$LastChangedRevision: 15133 $ ;$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/spedas/gui/display/draw_object/spd_ui_draw_object__pt2norm.pro $ ;- function spd_ui_draw_object::pt2norm,value,xy compile_opt idl2,hidden pt2mm = 127D/360D mm2cm = .1D in2cm = 2.54 v = value*pt2mm*mm2cm dim = self->getDim() ;Replacing with alternate conversion. Normalizes based on notional canvas size. ;Assumes we got it right. Should get rid of zoom dependence and hopefully make our placements more rational ;self.destination->getProperty,resolution=r ;dim /= self->getZoom() ;return,v/(r[xy]*dim[xy]) canvas_cm = self.currentpagesize[xy]*in2cm return,v/canvas_cm end