Hi, Would it be possible for you to create a signed version of your NuGet Package

Hi, Im using Visual Studio Community 2017 Edition.
I have installed the PLPlot from brew.
All libraries have been added to the Cellar and system paths.

When running the example code for C# the following error happens:

System.DllNotFoundException has been thrown plplot

Line:
// create PLplot object
PLStream pl = new PLStream();

I have on my bash profile:
export LD_LIBRARY_PATH="/usr/local/Cellar/plplot/5.14.0_1/lib"

Any ideas what can be missing?

Thank you.

I am assuming we only need to add it as a function in PLStreamGenerated.cs as it already exists in Native.

The PLStream constructor throws an exception when called from a .NET Core 3.0 console application.

System.TypeInitializationException
HResult=0x80131534
Message=The type initializer for 'PLplot.Native' threw an exception.
Source=PLplotNet
StackTrace:
at PLplot.Native.mkstrm(Int32& p_strm)
at PLplot.PLStream..ctor() in C:...\PLStream.cs:line 24
at SineWaves.Program.Main(String[] args) in C:...\Program.cs:line 56

Inner Exception 1:
InvalidOperationException: Cannot find support PLplot support files in System.String[].

If called from a .NET Core 2.0 console application it works fine. I tested with the SineWaves console application from the c# samples.

I see two F# examples, any chance there are any C# examples.

Hey,
I'm trying to make a surface plot of a 2D array, where its indexes would be the x and y axes and the values of the array would be z = f ( x, y ), but I'm failing miserably, even with the documentation, and examples on PLplot site written in C++.

How hard would it be to create a plot like this and what do I need?

I was trying to tinker around with plot3d method and I've checked out your C# example - I can set up the XYZ environment, but I can't create the plot itself:

Exiting my program causes this error to show up in my VS:
*** PLPLOT ERROR, ABORTING OPERATION *** plot3dcl: Bad option, aborting operation

Here's "my" code so far:

`var pl = new PLStream();

         //use SVG backend and write to SineWaves.svg in current directory

            pl.sdev("pngcairo");
            pl.sfnam("SineWaves.png");

        // use white background with black foreground
        pl.spal0("cmap0_alternate.pal");

        // Initialize plplot
        pl.init();

        double[] xIndexes, yIndexes;
        xIndexes = new double[temp.width];
        yIndexes = new double[temp.height];
        for (int i = 0; i < temp.width; i++)
            xIndexes[i] = i;
        for (int i = 0; i < temp.height; i++)
            yIndexes[i] = i;
        //Mesh opt = new Mesh();
        double[,] CDF = new double[surface.width, surface.height];
        for (int i = 0; i < surface.width; i++)
            for (int j = 0; j < surface.height; j++)
                CDF[i, j] = CumulativeDistributionFunction[i, j].result;//This is the array I'm trying to make a plot of

        Mesh opt = new Mesh(); // line with possible issue

        pl.adv(0);
        pl.col0(1);
        pl.vpor(0.0, 1.0, 0.0, 0.9);
        pl.wind(-1.0, 1.0, -1.0, 1.0);

        pl.w3d(1.0, 1.0, 1.0, 0, surface.width, 0, surface.height, 0, 1,60, 30);
        pl.box3("bnstu", "x axis", 0.0, 0, "bnstu", "y axis", 0.0, 0, "bcdmnstuv", "z axis", 0.0, 4);

        pl.col0(2);

        pl.scmap1n(256);

        pl.plot3d(xIndexes, yIndexes, CDF, opt, true); //line with possible issue
        pl.col0(3);
        pl.mtex("t", 1.0, 0.5, 0.5, "Title");
        // end page (writes output to disk)
        pl.eop();

        // output version
        pl.gver(out var verText);
        Console.WriteLine("PLplot version " + verText);`

Now about the possible issue - in the C and C++ implementations of example 11 that I've looked at (http://plplot.org/examples.php?demo=11&lbind=C%2B%2B), the plot3d method takes the opt argument as an int:
static const int opt[]; ... pls->plot3d( x, y, z, XPTS, YPTS, **opt[k]** | MAG_COLOR, true );

While in C# plot3d takes opt argument as a Mesh:
public void plot3d(double[] x, double[] y, double[,] z, Mesh opt, bool side);

As a result I have no idea what am I supposed to pass there, not to mention that I can't find the definitions of DRAW_LINEX, DRAW_LINEY and DRAW_LINEXY, or what they are anyway. Is opt supposed to be a Mesh?

So in the end - what am I doing wrong, what do I need to do to make a 3D plot of a 2D array, and could you maybe translate the example 11 to C#?

Could you explain why you use a lock when calling P/Invoke? Apologies if this is the wrong forum...

Hello,

I'm trying to use PLplotNet on the Mac using Visual Studio for Mac. I've installed PLPlot on my system and downloaded PLplotNet via NuGet.

When I run the app, I get the following exception:

DllNotFoundException
API-MS-WIN-CRT-ENVIRONMENT-L1-1-0.DLL
at (wrapper managed-to-native) PLplot.Native:_putenv_s (string,string)
at PLplot.Native..cctor () [0x00049] in <839be5c188a24e59a7156a92b7df2f7b>:0

I've tried running the same project in Windows and it works just fine. So obviously this is something specific to running in Mono.

Would you have any thoughts on how I might work around this?

It looks like all the saving is handled in the library itself.

I'd rather save to a memory stream as I need to do extra processing on the image, and have no reason to save to disk. Is there a way to do this?