I am trying to use F# Charting: Library for Data Visualization https://fslab.org/FSharp.Charting/
I am experiencing basic trouble I've posted my issue on GitHub but I'm cross-posting here https://github.com/fslaborg/FSharp.Charting/issues/126
I am running on Xamarin 6.3 on MacOS Sierra on a recent iMAC
I have loaded FSharp.Charting.Gtk (0.90.14)
BTW is it open FSharp.Charting that i need to use or open FSharp.Charting.Gtk ?
doc says the first one, FSI doesn't complain immediately after the 2nd command, but if i try a method Chart.Line for example then i get the message
System.Exception: Operation could not be completed due to earlier error The namespace or module 'Chart' is not defined at 3,0
1) Problem when executing after compilation
open System
open FSharp.Charting
let ch = Chart.Line [ for x in 0 .. 10 -> x, x*x ]
ch.ShowChart()
[<EntryPoint>]
let main args =
printfn "Arguments passed to function : %A" args
printfn "hello world"
0
this is what I get
The beginning of the error log looks like
Last login: Thu Apr 20 00:55:57 on ttys000 59x159x64x204:~ ...$ clear; cd "/Users/.../bin/Debug"; export PKG_CONFIG_PATH="/Applications/Xamarin Studio.app/Contents/Resources/lib/pkgconfig:/Library/Frameworks/Mono.framework/Versions/4.8.1/lib/pkgconfig"; export PKG_CONFIG_LIBDIR=""; export PATH="/Library/Frameworks/Mono.framework/Commands:/Applications/Xamarin Studio.app/Contents/Resources:/Applications/Xamarin Studio.app/Contents/MacOS:/usr/bin:/bin:/usr/sbin:/sbin"; export MONO_GAC_PREFIX="/Applications/Xamarin Studio.app/Contents/Resources"; export XBUILD_FRAMEWORK_FOLDERS_PATH=""; "/Library/Frameworks/Mono.framework/Versions/4.8.1/bin/mono32" --debug "/Users/.../bin/Debug/The42project.exe" ; echo $? > /var/folders/gm/z065gk616xg6g0xgn4c7_bvc0000gn/T/tmp1493d63.tmp; echo; read -p 'Press any key to continue...' -n1; exit
(process:14805): GLib-GObject-WARNING **: invalid (NULL) pointer instance
(process:14805): GLib-GObject-CRITICAL **: gulong g_signal_connect_data(gpointer, const gchar *, GCallback, gpointer, GClosureNotify, GConnectFlags): assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
(process:14805): Gtk-WARNING **: Screen for GtkWindow not set; you must always set a screen for a GtkWindow before using the window
(process:14805): Gdk-CRITICAL **: GdkColormap *gdk_screen_get_default_colormap(GdkScreen *): assertion `GDK_IS_SCREEN (screen)' failed
full error message here https://gist.github.com/FaguiCurtain/a70fb8d894199f0a65de3a9006fb4758
2) problem when executing in FSI
[Loading /Users/.../packages/FSharp.Charting.Gtk.0.90.14/FSharp.Charting.Gtk.fsx]
namespace FSI_0001.FSharp.Charting
val verifyMac : unit -> bool
val isMac : bool
module FsiAutoShow = begin
end
The search directory '/usr/lib/mono/gtk-sharp-2.0' could not be found at 28,0
The search directory '/usr/lib/mono/gtk-sharp-2.0' could not be found at 28,0
open FSharp.Charting;;
Chart.Line [ for x in 0 .. 10 -> x, x*x ];;
Binding session to '/Users/.../packages/FSharp.Charting.Gtk.0.90.14/lib/net40/OxyPlot.dll'...
Binding session to '/Users/.../packages/FSharp.Charting.Gtk.0.90.14/lib/net40/OxyPlot.GtkSharp.dll'...
val it : ChartTypes.GenericChart = (Chart)
in FSI, the chart window opens immediately but it takes 20-30 sec for the chart to actually appear. is it normal it takes so long ? When i hover on the chart, i see no coordinates, is it normal ? i cannot close this window. As you can see on the screenshot, the 3 buttons on the upperleft of the chart window are not activated. I cannot find a way to make this window disappear. is it normal ?
thanks
3) in FSI still if i type a command starting by Chart. i get only a few options, much less than there is in the Library.
Not surprisingly then, if i type for example using Combine which doesn't appear with IntelliSense
Chart.Combine [ Chart.Line(msft?Difference |> Series.observations)
Chart.Line(fb?Difference |> Series.observations) ]
System.Exception: Operation could not be completed due to earlier error The field, constructor or member 'Combine' is not defined at 2,6
