Re: Re: 6.0 Get Graphics Coordinates...
- To: mathgroup at smc.vnet.net
- Subject: [mg77750] Re: Re: 6.0 Get Graphics Coordinates...
- From: "John Jowett" <John.Jowett at cern.ch>
- Date: Sat, 16 Jun 2007 03:22:18 -0400 (EDT)
- Organization: CERN News
- References: <f4on38$7sg$1@smc.vnet.net> <200706140911.FAA05973@smc.vnet.net> <f4tm2d$ira$1@smc.vnet.net>
I tend to agree. I tried the examples given by Jens and others abd could not figure out how to actually get hold of the values of the points that I created by clicking. In previous versions, one of my frequent applications of Ctrl-Click was to read points off a curve on an imported scanned image and then convert them to data using a function created by Ctrl-Clicking on the corners of a plot (I made a little package for that if anyone is interested). Another was to click on phase space plots to create new initial conditions for particle tracking. Can anyone explain how to do this kind of thing in V6 ? John Jowett "Murray Eisenberg" <murray at math.umass.edu> wrote in message news:f4tm2d$ira$1 at smc.vnet.net... Useless?? Hardly! Surely just doing Plot[...] and then Ctrl-clicking is a lot easier for a beginner (e.g., a student using Mathematica) than to deal with a Dynamic object. On the other hand, and apart from the issue of what to do with Ctrl-click when the graphics object is dynamically generated, there would seem to be a design issue: Now, in 6.0, Ctrl-mouse-button-down is the start of a zoom-in/zoom-out for a 3D graphic. Jens-Peer Kuska wrote: > Hi, > > it has been droped because it is useless try > > gr = Plot[Sin[x^2], {x, 0, 2 Pi}]; > > and > > DynamicModule[{pnt = {0, 0}}, > gr /. Graphics[gg_, opts___] :> > Graphics[Append[gg, Tooltip[Locator[Dynamic@ pnt], Dynamic@ pnt]], > Prepend[Prepend[{opts}, PlotLabel -> Dynamic[pnt]], > AxesLabel -> {Dynamic[First[pnt]], Dynamic[Last[pnt]]}]] > ] > > and > > DynamicModule[{pts = {{0, 1/2}, {2, 1/2}}}, LocatorPane[Dynamic[pts], > gr, LocatorAutoCreate -> True]] > > Alt-Mouse click will add points .. > > Regards > Jens > > roby.nowak at gmail.com wrote: >> hello, what happened to: >> 5.2 Get Graphics Coordinates... >> >> in version 5.2 you could click inside a graphic and when holding down >> the <Ctrl> key the coordinates of the cursor within the graphics would >> be displayed. you could then click with the mouse and every clicked >> position got saved in a buffer. then you could copy and paste the >> saved coordinates as a list of number pairs. >> >> regards robert >> >> > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305
- References:
- Re: 6.0 Get Graphics Coordinates...
- From: Jens-Peer Kuska <kuska@informatik.uni-leipzig.de>
- Re: 6.0 Get Graphics Coordinates...