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Running script

Hi,

How can I run attached c# code in page_load or form load event by proving the following STL file?

http://orion.math.iastate.edu/burkardt/data/stl/bottle.stl

Please help.

ayha
script.txt
0
ayha1999
Asked:
ayha1999
  • 11
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1 Solution
 
Meir RivkinFull stack Software EngineerCommented:
Hello again.

Take the stlutil class and add it to your aspnet project.
If the file is on the server then put it in the physical directory where you deploy your web app.
In your form load use the same code from class main but pass the args array to IsValidated like thid:
var stlutils=new STLUtils();
If(stlutils.IsValidated(new string[]{filename,STLUtils.LengthType.inch.ToString()}));
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Meir RivkinFull stack Software EngineerCommented:
The filename argument is the location of the .stl file in the server.
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ayha1999Author Commented:
I will check it and come back.

Meantime, could u please have look the following question?

http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/Q_28009868.html

Thanks
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Meir RivkinFull stack Software EngineerCommented:
U already got it answered
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ayha1999Author Commented:
I tried the code but ended up with a syntax error.

ERROR: Possible mistaken empty statement at ';' in the end of the statement.

    protected void Page_Load(object sender, EventArgs e)
    {
        var stlutils = new STLUtils();
        if (stlutils.IsValidated(new string[] { Server.MapPath("~/website1/Part1_full tray..stl"), STLUtils.LengthType.inch.ToString() }));
    }

ayha
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Meir RivkinFull stack Software EngineerCommented:
U have 2 dots between the file name and the extension stl
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ayha1999Author Commented:
I removed but still same error.
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Meir RivkinFull stack Software EngineerCommented:
Debug the code and post the line that causes the error
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Meir RivkinFull stack Software EngineerCommented:
Also can u post the stlutil class here?
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ayha1999Author Commented:
instead of red underline for syntax error it is green underline and when debugging, not showing error.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;

/// </summary>
public class Triangle
{
    public double x; public double y; public double z;
}

public class STLUtils
{
    public enum LengthType { inch, cm } ;

    List<byte[]> _normals = new List<byte[]>();
    List<byte[]> _points = new List<byte[]>();
    List<Triangle> _triangles = new List<Triangle>();
    List<byte> _bytecount = new List<byte>();
    byte[] _fileBytes;
    LengthType _lengthType;
    string _filename;

    public bool IsValidated(string[] args)
    {
        if (args.Length != 2) return false;
        if (!Enum.TryParse<LengthType>(args[1], true, out _lengthType))
        {
            return false;
        }

        _filename = args[0];

        return File.Exists(_filename);
    }

    public double CalculateVolume()
    {
        //read binary file
        _fileBytes = File.ReadAllBytes(_filename);

        //reverse array if little indian
        if (BitConverter.IsLittleEndian)
            Array.Reverse(_fileBytes);

        //read length
        int length = ReadLength();

        double totalVol = 0;

        //skip 80(header) + 4(length)
        var bytes = _fileBytes.Skip(84);

        //loop through all triangles data
        for (int i = 0; i < length; i++)
        {
            _normals.Add(bytes.Take(12).ToArray());

            var p1 = bytes.Skip(12).Take(12).ToArray();
            var p2 = bytes.Skip(24).Take(12).ToArray();
            var p3 = bytes.Skip(36).Take(12).ToArray();
            var b = bytes.Skip(48).Take(2);

            var l = _points.Count;
            _points.Add(p1);
            _points.Add(p2);
            _points.Add(p3);
            _triangles.Add(new Triangle { x = l, y = l + 1, z = l + 2 });

            _bytecount.Add(b.First());
            totalVol += signedVolumeOfTriangle(p1, p2, p3);
            bytes = bytes.Skip(50);
        }

        //convert to required length type (cm/inch)
        return (_lengthType == LengthType.cm) ?
            totalVol / 1000 :
            cm3_To_inch3Transform(totalVol / 1000);
    }

    private double cm3_To_inch3Transform(double totalVol)
    {
        return totalVol * 0.0610237441;
    }

    private int ReadLength()
    {
        //skip 80 chars (header), read next 4 bytes to get length
        int length = BitConverter.ToInt32(_fileBytes.Skip(80).Take(4).ToArray(), 0);
        return length;
    }

    public double signedVolumeOfTriangle(byte[] p1, byte[] p2, byte[] p3)
    {
        double v321 = p3[0] * p2[1] * p1[2];
        double v231 = p2[0] * p3[1] * p1[2];
        double v312 = p3[0] * p1[1] * p2[2];
        double v132 = p1[0] * p3[1] * p2[2];
        double v213 = p2[0] * p1[1] * p3[2];
        double v123 = p1[0] * p2[1] * p3[2];
        return (1.0 / 6.0) * (-v321 + v231 + v312 - v132 - v213 + v123);
    }
}
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Meir RivkinFull stack Software EngineerCommented:
What is that mean?  do u get an error or not?
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ayha1999Author Commented:
as I told you, a syntax error and when I run no result in the page. Actually I expect to execute CalculateVolume function and return result.
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Meir RivkinFull stack Software EngineerCommented:
What is the error? Which line of code?
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Meir RivkinFull stack Software EngineerCommented:
ok i understand where the error came from, u left semicolon at the end of the if statement.
try this:

  var stlutils = new STLUtils();
        if (stlutils.IsValidated(new string[] { Server.MapPath("~/website1/Part1_full tray..stl"), STLUtils.LengthType.inch.ToString() })){



}

Open in new window

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ayha1999Author Commented:
Now error but no result returned,
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Meir RivkinFull stack Software EngineerCommented:
Debug the code see if it calculates all data correctly
Ive no way of knowing what is wrong without a file
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ayha1999Author Commented:
could u pls try this file

http://orion.math.iastate.edu/burkardt/data/stl/bottle.stl

no error but no result.
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Meir RivkinFull stack Software EngineerCommented:
i didn't realize it can be open in any text editor... (i wasn't familiar with the file type).
did u try it?
do you see the figures?
cause it would make it so much easier to process it as if it was a text file rather binary file like you had in php.
what do u think?
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ayha1999Author Commented:
Thanks
0

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