[Nplot-devel] NPlot development

[FXHat - <fxh...@gm...>]

Just a quick question, is NPlot still being developed? I noticed the
last release is from almost two years ago.

Regards, Jan

On Wed, Jul 2, 2008 at 12:00 AM,
<npl...@li...>wrote:

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> Today's Topics:
>
>   1. Axis.TicksAngle patch (Hywel Thomas)
>   2. [ nplot-Bugs-1901521 ] Y Axis recommendation extended     while X
>      Axis is not (SourceForge.net)
>   3. [ nplot-Bugs-2000693 ] Axis Ticks drawn at wrong angle
>      (SourceForge.net)
>   4. Nplot refresh performance problem (Daniel Cruz Barcia)
>   5. nplot cryptographic error (MT)
>   6. Re: nplot cryptographic error (Ben Gruver)
>   7. Re: nplot cryptographic error (Angel Marin)
>   8. mouseover text on plot (MT)
>   9. Re: nplot cryptographic error (MT)
>  10. Re: mouseover text on plot (Ben Gruver)
>  11. Re: mouseover text on plot (MT)
>  12. Re: mouseover text on plot (Ben Gruver)
>  13. Re: mouseover text on plot (MT)
>  14. Re: mouseover text on plot (Ben Gruver)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 02 Jun 2008 11:24:29 +0100
> From: Hywel Thomas <hy...@co...>
> Subject: [Nplot-devel] Axis.TicksAngle patch
> To: npl...@li...
> Message-ID: <484...@co...>
> Content-Type: text/plain; charset="iso-8859-1"
>
> This patch corrects the TicksAngle code in Axis.cs
>
> Files affected:    Axis.cs, PlotSurface2DDemo.cs
>
>
>
> TicksAngle is defined to be anti-clockwise from the axis direction for a
> positive angle (as is conventional for 2D coordinates).  However,
> because the physical (pixel) origin in System.Drawing.Graphics is at the
> top left of the screen, rotations  (as in RotateTransform) are
> clockwise.  This has caused some confusion when drawing the Ticks, and
> the code uses both the negative of the TicksAngle and the (A-B)
> trignometrical formula to rotate the tick.
>
> The above changes have been made, the formulae have been rearranged, and
> some additional comments added to the code to clarify it (hopefully!)
>
> In addition, it is conventional to place ticks *outside* the plot area
> (ie to the left of the positive Y_axis and below the positive X-axis) so
> that the default values for a new Axis should be:-
>
> TicksAngle_ = 3.0f * PI / 2.0f;  // or -PI/2.0f
> TickTextNextToAxis = false;
>
> and these changes have been made to the Axis constructor routine.
>
> The axis constructors in PlotSurface2D.cs have the correct TicksAngle
> defined and do not need changing.
>
>
> Only one of the demo routines (Mockup demo) uses specific values for
> TicksAngle, and the default values will now be correct.  Lines have been
> removed from PlotSurface2DDemo.cs to allow the default values to stand.
>
> Note that in all demos, the Ticks are now drawn outside the plot area
> (which is the convention), and if the original appearance is preferred,
> TicksAngle must be set to PI/2.0f specifically.
> -------------- next part --------------
> An embedded and charset-unspecified text was scrubbed...
> Name: CSDiff for Axis.cs.txt
> -------------- next part --------------
> An embedded and charset-unspecified text was scrubbed...
> Name: CSDiff for PlotSurface2DDemo.cs.txt
>
> ------------------------------
>
> Message: 2
> Date: Wed, 04 Jun 2008 18:42:33 -0700
> From: "SourceForge.net" <no...@so...>
> Subject: [Nplot-devel] [ nplot-Bugs-1901521 ] Y Axis recommendation
>        extended        while X Axis is not
> To: no...@so...
> Message-ID: <E1K...@sc...>
> Content-Type: text/plain; charset="UTF-8"
>
> Bugs item #1901521, was opened at 2008-02-25 10:59
> Message generated for change (Comment added) made by jesusfreke
> You can respond by visiting:
>
> https://sourceforge.net/tracker/?func=detail&atid=821568&aid=1901521&group_id=161868
>
> Please note that this message will contain a full copy of the comment
> thread,
> including the initial issue submission, for this request,
> not just the latest update.
> Category: General
> Group: None
> Status: Open
> Resolution: None
> Priority: 5
> Private: No
> Submitted By: Matthew McDougal (mmdoogie)
> Assigned to: Nobody/Anonymous (nobody)
> Summary: Y Axis recommendation extended while X Axis is not
>
> Initial Comment:
> I ran into a problem that I wouldn't have even noticed had I not been
> trying to use a LogAxis as the Y Axis on a plot.
>
> myPlotSurface.YAxis1 = new LogAxis(myLinePlot.SuggestYAxis)
>
> When I then tried to refresh my plot, it would fail saying I can't have
> negative data on a log axis, but of course I didn't have any negative data.
>
> Looking at the SequenceAdapter code in SVN, which I've trimmed a little
> just to get the relevant parts:
>
> public Axis SuggestXAxis()
> {
>   Axis a = this.XAxisSuggester_.Get();
>
>   // The world length should never be returned as 0
>   // This would result in an axis with a span of 0 units
>   // which can not be properly displayed.
>   if (a.WorldLength == 0.0)
>   {
>      a.IncreaseRange(0.08);
>   }
>
>   return a;
> }
>
> public Axis SuggestYAxis()
> {
>   Axis a = this.YAxisSuggester_.Get();
>   a.IncreaseRange(0.08);
>
>   return a;
> }
>
> Basically, what occurs is on the X axis, the range is only increased if the
> returned axis was zero, but on the Y axis, it is always increased by +/- 8%
> of the range.  If your span is sufficiently large enough, and your lower
> limit close enough to zero, the range can get extended negative.
>
> There may be a reason I don't know about, but if there isn't, I would
> suggest making the Y axis behave in the same manner as the X axis.
>
> --matt
>
> ----------------------------------------------------------------------
>
> Comment By: JesusFreke (jesusfreke)
> Date: 2008-06-04 20:42
>
> Message:
> Logged In: YES
> user_id=2104277
> Originator: NO
>
> I ran into this same problem. Here's a quick code sample that generates
> the error:
>
> NPlot.Bitmap.PlotSurface2D plot = new NPlot.Bitmap.PlotSurface2D(1000,
> 1000);
>
> LogAxis verticalAxis = new LogAxis();
> plot.YAxis1 = verticalAxis;
>
> System.Collections.ArrayList yvalues = new
> System.Collections.ArrayList();
> yvalues.Add(1);
> yvalues.Add(1000000);
>
> System.Collections.ArrayList xvalues = new
> System.Collections.ArrayList();
> xvalues.Add(0);
> xvalues.Add(1);
>
> LinePlot linePlot = new LinePlot(yvalues, xvalues);
> plot.Add(linePlot);
>
>
> A workaround to this issue is to add the lineplot first, and then the log
> axis.
>
>
> The problem is because the yaxis range is increased by 8%, and then that
> new range is passed to the "LUB" method of the log axis, which complains
> because the lower bound of the "suggested" axis is negative. I'm not
> familiar enough with the code to know what the best way to fix this might
> be. I don't think it would be to remove the 8% range increase altogether, I
> assume that is done for display reasons, so that the data doesn't go right
> up against the top and bottom of the graph.
>
> ----------------------------------------------------------------------
>
> You can respond by visiting:
>
> https://sourceforge.net/tracker/?func=detail&atid=821568&aid=1901521&group_id=161868
>
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 23 Jun 2008 11:03:33 +0000
> From: "SourceForge.net" <no...@so...>
> Subject: [Nplot-devel] [ nplot-Bugs-2000693 ] Axis Ticks drawn at
>        wrong angle
> To: no...@so...
> Message-ID: <E1K...@56...>
> Content-Type: text/plain; charset="UTF-8"
>
> Bugs item #2000693, was opened at 2008-06-23 12:03
> Message generated for change (Tracker Item Submitted) made by Item
> Submitter
> You can respond by visiting:
>
> https://sourceforge.net/tracker/?func=detail&atid=821568&aid=2000693&group_id=161868
>
> Please note that this message will contain a full copy of the comment
> thread,
> including the initial issue submission, for this request,
> not just the latest update.
> Category: General
> Group: None
> Status: Open
> Resolution: None
> Priority: 5
> Private: No
> Submitted By: Hywel Thomas (hywelthomas)
> Assigned to: Nobody/Anonymous (nobody)
> Summary: Axis Ticks drawn at wrong angle
>
> Initial Comment:
> TicksAngle is defined to be anti-clockwise from the axis direction for a
> positive angle (as is conventional for 2D coordinates).
> However, existing code draws ticks at wrong (ie clockwise) rotation.
>
> Demonstration:          AxisTestsForm.cs.patch has extra X-axes drawn to
> show this problem.
> Test code in:   NPlot\demo\csharp\src\AxisTestForm.cs
>
> Cause: Because the physical (pixel) origin in System.Drawing.Graphics is at
> the top left of the screen, rotations  (as in RotateTransform) are
> clockwise.  This
>
> has caused some confusion when drawing the Ticks, and the existing code
> uses both the negative of the TicksAngle and the (A-B) trignometrical
> formula to
>
> rotate the tick.
>
> Resolution: The code in Axis.cs has been corrected and comments added to
> clarify its operation.
>
> In addition, it is conventional to place ticks *outside* the plot area (ie
> to the left of the positive Y_axis and below the positive X-axis) so that
> the default
>
> values for a new Axis should be:-
>
> TicksAngle_ = 3.0f * PI / 2.0f;  // or -PI/2.0f
> TickTextNextToAxis = false;
>
> and these changes have been made to the Axis constructor routine.
>
> The axis constructors in PlotSurface2D.cs have the correct TicksAngle
> defined and do not need changing.
>
> Only one of the demo routines (Mockup demo) uses specific values for
> TicksAngle, and the default values will now be correct.  Lines have been
> removed
>
> from PlotSurface2DDemo.cs to allow the default values to stand.
>
> Note that in all demos, the Ticks are now drawn outside the plot area
> (which is the convention)
> If the original appearance is preferred, TicksAngle must be set to PI/2.0f
> specifically.
>
>
> Files affected:-
> NPlot\src\Axis.cs;
> NPlot\demo\charp\src\PlotSurface2DDemo.cs
> NPlot\demo\csharp\src\AxisTestForm.cs
>
>
>
>
>
> ----------------------------------------------------------------------
>
> You can respond by visiting:
>
> https://sourceforge.net/tracker/?func=detail&atid=821568&aid=2000693&group_id=161868
>
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 28 Jun 2008 19:43:23 +0200
> From: "Daniel Cruz Barcia" <pi...@gm...>
> Subject: [Nplot-devel] Nplot refresh performance problem
> To: npl...@li...
> Message-ID:
>        <6f5...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi!. My name is Daniel and i?m trying to use NPlot to develop a little app
> that receives values from an usb device (the USB-1208LS of Measurement
> Computing), and i have a big performance problem with the Refresh?s
> PlotSurface method.
>
> Is there a way to plot only the new data between iterations?.
>
> Thanks a lot.
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 1 Jul 2008 10:04:11 -0700 (PDT)
> From: MT <mt...@ya...>
> Subject: [Nplot-devel] nplot cryptographic error
> To: npl...@li...
> Message-ID: <529...@we...>
> Content-Type: text/plain; charset=iso-8859-1
>
> Hello
> I am trying to build nplot code from src however I am seeing a
> cryptographic failure error message.? It seems it is looking for a CSC file
> that doesnt exist.? Does anyone know how I can get this file and how I can
> build the code from src.? I am using vs 2005 and using msbee, if that makes
> a difference.
>
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 1 Jul 2008 12:42:12 -0500
> From: "Ben Gruver" <jes...@je...>
> Subject: Re: [Nplot-devel] nplot cryptographic error
> To: npl...@li...
> Message-ID:
>        <97d...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
>
> The easiest way to resolve this is to open the AssemblyInfo.cs file, and
> delete the AssemblyKeyFile value.
>
> Also, you may want to grab the latest source from SVN, I think it's more up
> to date than the zip download that's available (not positive)
>
>
>
> On Tue, Jul 1, 2008 at 12:04 PM, MT <mt...@ya...> wrote:
>
> > Hello
> > I am trying to build nplot code from src however I am seeing a
> > cryptographic failure error message.  It seems it is looking for a CSC
> file
> > that doesnt exist.  Does anyone know how I can get this file and how I
> can
> > build the code from src.  I am using vs 2005 and using msbee, if that
> makes
> > a difference.
> >
> >
> >
> > -------------------------------------------------------------------------
> > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > Studies have shown that voting for your favorite open source project,
> > along with a healthy diet, reduces your potential for chronic lameness
> > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > _______________________________________________
> > Nplot-devel mailing list
> > Npl...@li...
> > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> >
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 01 Jul 2008 19:48:00 +0200
> From: Angel Marin <an...@an...>
> Subject: Re: [Nplot-devel] nplot cryptographic error
> To: npl...@li...
> Message-ID: <486...@an...>
> Content-Type: text/plain; charset=UTF-8
>
> MT wrote:
> > Hello
> > I am trying to build nplot code from src however I am seeing
> > a cryptographic failure error message.  It seems it is looking
> > for a CSC file that doesnt exist.  Does anyone know how I can
> > get this file and how I can build the code from src.  I am using
> > vs 2005 and using msbee, if that makes a difference.
>
>
> You have to generate a key file before the first build (in order to get
> a strong named .dll). sn.exe tool that comes with .net SDK will do:
>
> sn.exe -k NPlot-key.snk
>
> Then put the resulting .snk file in nplot's folder.
>
> Regards,
> --
> Angel Marin
> http://anmar.eu.org/
>
>
>
> ------------------------------
>
> Message: 8
> Date: Tue, 1 Jul 2008 11:47:37 -0700 (PDT)
> From: MT <mt...@ya...>
> Subject: [Nplot-devel] mouseover text on plot
> To: npl...@li...
> Message-ID: <388...@we...>
> Content-Type: text/plain; charset=us-ascii
>
>
> Is there a way to change the mouseover text when hovering over a series
> element.  For example, if the mouse is over a candlestick, I would like to
> display the high, low, open, close, volume, date value, etc..  It seems that
> i can only display world coordinates.
>
> Thanks
>
> mt
>
>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Tue, 1 Jul 2008 11:48:08 -0700 (PDT)
> From: MT <mt...@ya...>
> Subject: Re: [Nplot-devel] nplot cryptographic error
> To: npl...@li...
> Message-ID: <170...@we...>
> Content-Type: text/plain; charset=us-ascii
>
> Thank you.  That fixed my problem.
>
> majid
>
>
>
> ----- Original Message ----
> From: Ben Gruver <jes...@je...>
> To: npl...@li...
> Sent: Tuesday, July 1, 2008 12:42:12 PM
> Subject: Re: [Nplot-devel] nplot cryptographic error
>
> The easiest way to resolve this is to open the AssemblyInfo.cs file, and
> delete the AssemblyKeyFile value.
>
> Also, you may want to grab the latest source from SVN, I think it's more up
> to date than the zip download that's available (not positive)
>
>
>
> On Tue, Jul 1, 2008 at 12:04 PM, MT <mt...@ya...> wrote:
>
> > Hello
> > I am trying to build nplot code from src however I am seeing a
> > cryptographic failure error message.  It seems it is looking for a CSC
> file
> > that doesnt exist.  Does anyone know how I can get this file and how I
> can
> > build the code from src.  I am using vs 2005 and using msbee, if that
> makes
> > a difference.
> >
> >
> >
> > -------------------------------------------------------------------------
> > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > Studies have shown that voting for your favorite open source project,
> > along with a healthy diet, reduces your potential for chronic lameness
> > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > _______________________________________________
> > Nplot-devel mailing list
> > Npl...@li...
> > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> >
> -------------------------------------------------------------------------
> Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> Studies have shown that voting for your favorite open source project,
> along with a healthy diet, reduces your potential for chronic lameness
> and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> _______________________________________________
> Nplot-devel mailing list
> Npl...@li...
> https://lists.sourceforge.net/lists/listinfo/nplot-devel
>
>
>
>
>
> ------------------------------
>
> Message: 10
> Date: Tue, 1 Jul 2008 14:33:04 -0500
> From: "Ben Gruver" <jes...@je...>
> Subject: Re: [Nplot-devel] mouseover text on plot
> To: npl...@li...
> Message-ID:
>        <97d...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I think you'll need to modify the nplot source to do this, but it shouldn't
> be difficult. Take a look at Windows.PlotSurface2D.DoMouseMove.
>
>
>
> On Tue, Jul 1, 2008 at 1:47 PM, MT <mt...@ya...> wrote:
>
> >
> > Is there a way to change the mouseover text when hovering over a series
> > element.  For example, if the mouse is over a candlestick, I would like
> to
> > display the high, low, open, close, volume, date value, etc..  It seems
> that
> > i can only display world coordinates.
> >
> > Thanks
> >
> > mt
> >
> >
> >
> >
> > -------------------------------------------------------------------------
> > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > Studies have shown that voting for your favorite open source project,
> > along with a healthy diet, reduces your potential for chronic lameness
> > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > _______________________________________________
> > Nplot-devel mailing list
> > Npl...@li...
> > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> >
>
>
> ------------------------------
>
> Message: 11
> Date: Tue, 1 Jul 2008 13:00:11 -0700 (PDT)
> From: MT <mt...@ya...>
> Subject: Re: [Nplot-devel] mouseover text on plot
> To: npl...@li...
> Message-ID: <583...@we...>
> Content-Type: text/plain; charset=us-ascii
>
> Thanks Ben for replying.  I did see that function in Windows.PlotSurface2D.
>  However, how would I know if I am mousing over a chart series or not?  In
> other words the mouse over will be different if I am hovering over a
> candlestick vs if I am in empty space in the chart (i.e. not hovering over a
> series)
>
> Any ideas?
>
>
>
> ----- Original Message ----
> From: Ben Gruver <jes...@je...>
> To: npl...@li...
> Sent: Tuesday, July 1, 2008 2:33:04 PM
> Subject: Re: [Nplot-devel] mouseover text on plot
>
> I think you'll need to modify the nplot source to do this, but it shouldn't
> be difficult. Take a look at Windows.PlotSurface2D.DoMouseMove.
>
>
>
> On Tue, Jul 1, 2008 at 1:47 PM, MT <mt...@ya...> wrote:
>
> >
> > Is there a way to change the mouseover text when hovering over a series
> > element.  For example, if the mouse is over a candlestick, I would like
> to
> > display the high, low, open, close, volume, date value, etc..  It seems
> that
> > i can only display world coordinates.
> >
> > Thanks
> >
> > mt
> >
> >
> >
> >
> > -------------------------------------------------------------------------
> > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > Studies have shown that voting for your favorite open source project,
> > along with a healthy diet, reduces your potential for chronic lameness
> > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > _______________________________________________
> > Nplot-devel mailing list
> > Npl...@li...
> > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> >
> -------------------------------------------------------------------------
> Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> Studies have shown that voting for your favorite open source project,
> along with a healthy diet, reduces your potential for chronic lameness
> and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> _______________________________________________
> Nplot-devel mailing list
> Npl...@li...
> https://lists.sourceforge.net/lists/listinfo/nplot-devel
>
>
>
>
>
> ------------------------------
>
> Message: 12
> Date: Tue, 1 Jul 2008 15:30:42 -0500
> From: "Ben Gruver" <jes...@je...>
> Subject: Re: [Nplot-devel] mouseover text on plot
> To: npl...@li...
> Message-ID:
>        <97d...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Ah, ok. I see your difficulty. I don't recall seeing any built-in way to
> determine if the cursor is over a data point. (Although that doesn't mean
> it's not there :)).
>
> Assuming it's not, you'll probably have to do your own "hit test" to
> determine this. There are various functions which allow you to translate
> between world and physical coordinates, which you may find helpful.
>
> I'm kinda surprised it doesn't have support for that.. I may just not have
> run across that functionality yet :)
>
>
> On Tue, Jul 1, 2008 at 3:00 PM, MT <mt...@ya...> wrote:
>
> > Thanks Ben for replying.  I did see that function in
> Windows.PlotSurface2D.
> >  However, how would I know if I am mousing over a chart series or not?
>  In
> > other words the mouse over will be different if I am hovering over a
> > candlestick vs if I am in empty space in the chart (i.e. not hovering
> over a
> > series)
> >
> > Any ideas?
> >
> >
> >
> > ----- Original Message ----
> > From: Ben Gruver <jes...@je...>
> > To: npl...@li...
> > Sent: Tuesday, July 1, 2008 2:33:04 PM
> > Subject: Re: [Nplot-devel] mouseover text on plot
> >
> > I think you'll need to modify the nplot source to do this, but it
> shouldn't
> > be difficult. Take a look at Windows.PlotSurface2D.DoMouseMove.
> >
> >
> >
> > On Tue, Jul 1, 2008 at 1:47 PM, MT <mt...@ya...> wrote:
> >
> > >
> > > Is there a way to change the mouseover text when hovering over a series
> > > element.  For example, if the mouse is over a candlestick, I would like
> > to
> > > display the high, low, open, close, volume, date value, etc..  It seems
> > that
> > > i can only display world coordinates.
> > >
> > > Thanks
> > >
> > > mt
> > >
> > >
> > >
> > >
> > >
> -------------------------------------------------------------------------
> > > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > > Studies have shown that voting for your favorite open source project,
> > > along with a healthy diet, reduces your potential for chronic lameness
> > > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > > _______________________________________________
> > > Nplot-devel mailing list
> > > Npl...@li...
> > > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> > >
> > -------------------------------------------------------------------------
> > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > Studies have shown that voting for your favorite open source project,
> > along with a healthy diet, reduces your potential for chronic lameness
> > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > _______________________________________________
> > Nplot-devel mailing list
> > Npl...@li...
> > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> >
> >
> >
> >
> > -------------------------------------------------------------------------
> > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > Studies have shown that voting for your favorite open source project,
> > along with a healthy diet, reduces your potential for chronic lameness
> > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > _______________________________________________
> > Nplot-devel mailing list
> > Npl...@li...
> > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> >
>
>
> ------------------------------
>
> Message: 13
> Date: Tue, 1 Jul 2008 14:41:20 -0700 (PDT)
> From: MT <mt...@ya...>
> Subject: Re: [Nplot-devel] mouseover text on plot
> To: npl...@li...
> Message-ID: <259...@we...>
> Content-Type: text/plain; charset=us-ascii
>
> I am trying to create my own "hit test" but I cant figure out how figure
> out what the coordinates are of each individual data point in the series.
>  Any ideas where that info is stored?
>
> majid
>
> ----- Original Message ----
> From: Ben Gruver <jes...@je...>
> To: npl...@li...
> Sent: Tuesday, July 1, 2008 3:30:42 PM
> Subject: Re: [Nplot-devel] mouseover text on plot
>
> Ah, ok. I see your difficulty. I don't recall seeing any built-in way to
> determine if the cursor is over a data point. (Although that doesn't mean
> it's not there :)).
>
> Assuming it's not, you'll probably have to do your own "hit test" to
> determine this. There are various functions which allow you to translate
> between world and physical coordinates, which you may find helpful.
>
> I'm kinda surprised it doesn't have support for that.. I may just not have
> run across that functionality yet :)
>
>
> On Tue, Jul 1, 2008 at 3:00 PM, MT <mt...@ya...> wrote:
>
> > Thanks Ben for replying.  I did see that function in
> Windows.PlotSurface2D.
> >  However, how would I know if I am mousing over a chart series or not?
>  In
> > other words the mouse over will be different if I am hovering over a
> > candlestick vs if I am in empty space in the chart (i.e. not hovering
> over a
> > series)
> >
> > Any ideas?
> >
> >
> >
> > ----- Original Message ----
> > From: Ben Gruver <jes...@je...>
> > To: npl...@li...
> > Sent: Tuesday, July 1, 2008 2:33:04 PM
> > Subject: Re: [Nplot-devel] mouseover text on plot
> >
> > I think you'll need to modify the nplot source to do this, but it
> shouldn't
> > be difficult. Take a look at Windows.PlotSurface2D.DoMouseMove.
> >
> >
> >
> > On Tue, Jul 1, 2008 at 1:47 PM, MT <mt...@ya...> wrote:
> >
> > >
> > > Is there a way to change the mouseover text when hovering over a series
> > > element.  For example, if the mouse is over a candlestick, I would like
> > to
> > > display the high, low, open, close, volume, date value, etc..  It seems
> > that
> > > i can only display world coordinates.
> > >
> > > Thanks
> > >
> > > mt
> > >
> > >
> > >
> > >
> > >
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> ------------------------------
>
> Message: 14
> Date: Tue, 1 Jul 2008 17:00:53 -0500
> From: "Ben Gruver" <jes...@je...>
> Subject: Re: [Nplot-devel] mouseover text on plot
> To: npl...@li...
> Message-ID:
>        <97d...@ma...>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Take a look at PhysicalAxis.WorldToPhysical. This will tranlate a world
> (data) coordinate to the corresponding physical (screen) coordinate.
>
> You can access the PhysicalAxis objects that were used for the most recent
> Draw operation via PlotSurface2D.PhysicalXAxis1Cache (along with the other
> 3
> axises).
>
> To get a list of the data points themselves, I believe you can use
> CandleDataAdapter.
>
>
>
>
>
> On Tue, Jul 1, 2008 at 4:41 PM, MT <mt...@ya...> wrote:
>
> > I am trying to create my own "hit test" but I cant figure out how figure
> > out what the coordinates are of each individual data point in the series.
> >  Any ideas where that info is stored?
> >
> > majid
> >
> > ----- Original Message ----
> > From: Ben Gruver <jes...@je...>
> > To: npl...@li...
> > Sent: Tuesday, July 1, 2008 3:30:42 PM
> > Subject: Re: [Nplot-devel] mouseover text on plot
> >
> > Ah, ok. I see your difficulty. I don't recall seeing any built-in way to
> > determine if the cursor is over a data point. (Although that doesn't mean
> > it's not there :)).
> >
> > Assuming it's not, you'll probably have to do your own "hit test" to
> > determine this. There are various functions which allow you to translate
> > between world and physical coordinates, which you may find helpful.
> >
> > I'm kinda surprised it doesn't have support for that.. I may just not
> have
> > run across that functionality yet :)
> >
> >
> > On Tue, Jul 1, 2008 at 3:00 PM, MT <mt...@ya...> wrote:
> >
> > > Thanks Ben for replying.  I did see that function in
> > Windows.PlotSurface2D.
> > >  However, how would I know if I am mousing over a chart series or not?
> >  In
> > > other words the mouse over will be different if I am hovering over a
> > > candlestick vs if I am in empty space in the chart (i.e. not hovering
> > over a
> > > series)
> > >
> > > Any ideas?
> > >
> > >
> > >
> > > ----- Original Message ----
> > > From: Ben Gruver <jes...@je...>
> > > To: npl...@li...
> > > Sent: Tuesday, July 1, 2008 2:33:04 PM
> > > Subject: Re: [Nplot-devel] mouseover text on plot
> > >
> > > I think you'll need to modify the nplot source to do this, but it
> > shouldn't
> > > be difficult. Take a look at Windows.PlotSurface2D.DoMouseMove.
> > >
> > >
> > >
> > > On Tue, Jul 1, 2008 at 1:47 PM, MT <mt...@ya...> wrote:
> > >
> > > >
> > > > Is there a way to change the mouseover text when hovering over a
> series
> > > > element.  For example, if the mouse is over a candlestick, I would
> like
> > > to
> > > > display the high, low, open, close, volume, date value, etc..  It
> seems
> > > that
> > > > i can only display world coordinates.
> > > >
> > > > Thanks
> > > >
> > > > mt
> > > >
> > > >
> > > >
> > > >
> > > >
> > -------------------------------------------------------------------------
> > > > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > > > Studies have shown that voting for your favorite open source project,
> > > > along with a healthy diet, reduces your potential for chronic
> lameness
> > > > and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> > > > _______________________________________________
> > > > Nplot-devel mailing list
> > > > Npl...@li...
> > > > https://lists.sourceforge.net/lists/listinfo/nplot-devel
> > > >
> > >
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> > > Studies have shown that voting for your favorite open source project,
> > > along with a healthy diet, reduces your potential for chronic lameness
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> > >
> > >
> > >
> > >
> > >
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> >
> >
> >
> >
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> End of Nplot-devel Digest, Vol 20, Issue 1
> ******************************************
>