topic Re: In C++ Open a File and Read Write Integer Double String Data then Close in Fusion API and Scripts Forum

In C++ Open a File and Read Write Integer Double String Data then Close

tperam — Fri, 31 Aug 2018 19:50:54 GMT

In C++ File Open Read Write Integer Double String Close

In Fusion 360 using C++ I would like to,

Open a Read Only text file and Read Integer, Double and String Data, then Close it.

Open a Write text File and Write Integer, Double and String Data, then Close it.

Thurai Moorthy

Re: In C++ Open a File and Read Write Integer Double String Data then Close

BrianEkins — Sat, 01 Sep 2018 00:26:22 GMT

The Fusion 360 API doesn't have any functionality to open and read or write to files. However, the reason it doesn't have any functionality is that the programming languages themselves (Python and C++) both support that functionality. So you can use the standard C++ libraries to read and write files. Here's one introduction.

http://www.cplusplus.com/doc/tutorial/files/

Re: In C++ Open a File and Read Write Integer Double String Data then Close

tperam — Sat, 01 Sep 2018 14:55:58 GMT

I Tried the following C++ Code, which did not work.

Can you post a sample code that works in Fusion 360 please?

Thanks,

Thurai

#include <Core/CoreAll.h>
#include <Fusion/FusionAll.h>
#include <CAM/CAMAll.h>

#include <stdio.h>
#include <io.h>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string.h>
#include <conio.h>
#include <stdlib.h>
#include <time.h>
#include <conio.h>
#include <assert.h>
#include <math.h>
#include <memory.h>
#include <errno.h>

//#include <iostream>
#include <complex>

using namespace adsk::core;
using namespace adsk::fusion;
using namespace adsk::cam;

using namespace std;

Ptr<Application> app;
Ptr<UserInterface> ui;

extern "C" XI_EXPORT bool run(const char* context)
{
app = Application::get();
if (!app)
return false;

ui = app->userInterface();
if (!ui)
return false;

ui->messageBox("Hello script");

/* create a file */

/* Test Writing to a file */
ofstream outflm;
outflm.open("outflm.txt");

double a = 10.0;
char aStr[16]; // string which will contain the number
sprintf_s ( aStr, "%f", a ); // %d makes the result be a decimal integer
string SaStr;
    SaStr += "Test aStr";
    SaStr += " ";
    SaStr += aStr;
    ui->messageBox(SaStr);
    outflm << SaStr;
outflm.close();

char str[100];

   ifstream inflm;
   inflm.open("inflm.txt");
   inflm.getline(str, 100, '#');
   ui->messageBox("str", str);

   string x = "fred";
      int d = 3;
   char dStr[16]; // string which will contain the number
   sprintf_s ( dStr, "%d", d ); // %d makes the result be a decimal integer

   ui->messageBox("Test messageBox");

    string msg;
    msg = "Test 2";
    msg += " ";
    msg += x;
    msg += " ";
    msg += dStr;
    ui->messageBox(msg);

return true;
}

#ifdef XI_WIN

#include <windows.h>

BOOL APIENTRY DllMain(HMODULE hmodule, DWORD reason, LPVOID reserved)
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}

#endif // XI_WIN

Re: In C++ Open a File and Read Write Integer Double String Data then Close

tperam — Sun, 02 Sep 2018 19:57:13 GMT

Hi Brian Ekins,

The reason I would like to do file input output in Fusion 360 is to have the capability of having the data for hundreds or more of sketches in a file.

Is it possible to import the common C++ Library file input output capability into Fusion 360?

Thanks.

Re: In C++ Open a File and Read Write Integer Double String Data then Close

goyals — Mon, 03 Sep 2018 05:24:52 GMT

I tried your code and it worked for me. May I know what problem you are seeing with your code. The best way to create C++ Script/Add-in is to start with default C++ project. Please look at the following link

http://help.autodesk.com/view/fusion360/ENU/?guid=GUID-9701BBA7-EC0E-4016-A9C8-964AA4838954

This will set VS project settings correctly and you can modify it later for your work. You can use any C++ library for your script.

Re: In C++ Open a File and Read Write Integer Double String Data then Close

tperam — Mon, 03 Sep 2018 16:03:58 GMT

Hi Goyals,

I Tried the code again today.

I followed the steps in the link you sent.

It Compiles and Runs.

But does not read the data from the input file and does not write the data into the output file.

Input File(inflm.txt) Data is:

abcd1234
efgh5678

The messageBox did not display the above line.

After running, nothing got written into the Output file (outflm.txt).

Thanks,

Thurai

Re: In C++ Open a File and Read Write Integer Double String Data then Close

goyals — Mon, 03 Sep 2018 17:48:28 GMT

I am hoping that after compiling the code, you are running the script from "Scripts and Add-ins" dialog. Rather than giving just the file name, please try to pass full path like 'D://Outflm.txt'. My guess is that script is not able to locate these text files on your machine.

Re: In C++ Open a File and Read Write Integer Double String Data then Close

tperam — Mon, 03 Sep 2018 18:21:02 GMT

Hi Goyals,

I Added the full path as you suggested.

Then it worked Okay.

Great and Thanks.

The new code is as below and I called it TestFile3.cpp

#include <Core/CoreAll.h>
#include <Fusion/FusionAll.h>
#include <CAM/CAMAll.h>

using namespace adsk::core;
using namespace adsk::fusion;
using namespace adsk::cam;

#include <iostream>
#include <fstream>
#include <string>

#include <stdio.h>
#include <io.h>
#include <conio.h>
#include <stdlib.h>
#include <time.h>
#include <conio.h>
#include <assert.h>
#include <math.h>
#include <memory.h>
#include <errno.h>

using namespace std;

Ptr<Application> app;
Ptr<UserInterface> ui;

extern "C" XI_EXPORT bool run(const char* context)
{
app = Application::get();
if (!app)
return false;

ui = app->userInterface();
if (!ui)
return false;

ui->messageBox("Hello script");

// Read File
string line;
ifstream myfile ("C://Users//tpera//AppData//Roaming//Autodesk//Autodesk Fusion 360//API//Scripts//TestFile3//infile.txt");
if (myfile.is_open())
   {
ui->messageBox(" Opened infile.txt");
    while ( getline (myfile,line) )
    {
      cout << line << '\n';
   line +="\n";

   ui->messageBox(line);
    }

myfile.close();
}

else
{
ui->messageBox(" Unable to Open infile.txt");
}

// writing on a text file

     string x = "fred";
     int d = 3;
   //string dStr;
   //std::string dAsString = std::to_string(d);
   char dStr[16]; // string which will contain the number
   sprintf_s ( dStr, "%d", d ); // %d makes the result be a decimal integer

   string msg;
    msg = "Test Write File";
    msg += " ";
    msg += x;
    msg += " ";
    msg += dStr;
    ui->messageBox(msg);

ofstream myfile2 ("C://Users//tpera//AppData//Roaming//Autodesk//Autodesk Fusion 360//API//Scripts//TestFile3//outfile.txt");
if (myfile2.is_open())
{
    //myfile2 << "This is a line.\n";
    //myfile2 << "This is another line.\n";
    myfile2 << msg;
//myfile2.put('A');
//myfile2.write(msg);

    ui->messageBox(" Opened outfile.txt");
    myfile2.close();
}
else
{
ui->messageBox("Unable to open outfile.txt");
}

return true;
}

#ifdef XI_WIN

#include <windows.h>

#endif // XI_WIN

infile.txt:

abcd1234
efgh5678

outfile.txt:

Test Write File fred 3