RE: mouse drage listener!
- To: mathgroup at smc.vnet.net
- Subject: [mg71417] RE: [mg71398] mouse drage listener!
- From: "Ingolf Dahl" <ingolf.dahl at telia.com>
- Date: Fri, 17 Nov 2006 04:30:52 -0500 (EST)
Hi, I assume that you are thinking about the "Get Graphics Coordinates" mechanism, and on my Windows computer it is stated that "If you click on or more times while holding down the Control key, the coordinates will be selected. You can then copy and paste the coordinate value to an input cell". You might also drag the mouse with left button pressed while holding down the control key. There might be a slightly different procedure in other computer systems. There is also an undocumented way to read the coordinates by a Mathematica command, and this is most easily achieved if the command and the graphics cell are placed in different notebooks. If your clicked graphics is located in a notebook specified by the notebook object nb, you simply do NotebookRead[nb], and then the graphic coordinates are returned as a list of points. In my TaggedCells package (see http://web.telia.com/~u31815170/Mathematica/) there is a command ReadMousePad, to both select a graphics cell, wait for input and read the points entered. The requirement is that the graphics cell has the CellTags option set. Best regards Ingolf Dahl > -----Original Message----- > From: mumat [mailto:csarami at gmail.com] > Sent: den 16 november 2006 06:55 > To: mathgroup at smc.vnet.net > Subject: [mg71398] mouse drage listener! > > Dear All, > > Assume that you have Image (m by n) uploaded in mathematica. > You left-click on mouse and drag it to draw a curve while ur > pressing on left button. > > > How can i retrieve the list of points ( i,j) where the mouse > has gone over. > > > thanks much in advance. > > > regards, > > > chekad > >