Topic: how to move a face in a solid ?

[ahlzl]

Wrapper to C#, Success!(CAD2008 + VS2005)

step1: Create a new ARX project

step2: Add a class: MyClass

step3: In MyClass.h, Add code:

Code: [Select]

#include "tchar.h"
step4: In MyClass.cpp, Add code:

Code: [Select]

extern "C" __declspec(dllexport) AcDb3dSolid* GetSubentIndexs()
{
AcDbObjectId entId = NULL;
AcArray<AcDbSubentId*> subIdArr;
AcEdSolidSubentitySelector subSel;
AcDb3dSolid *pSolid3d = NULL;

if (subSel.selectFaces(entId, subIdArr) == Acad::eOk)
{
acdbOpenObject(pSolid3d, entId, AcDb::kForWrite);

TCHAR subIdIndexStrs[1000];
TCHAR indexStr[10];
int index = 0;

for (int i = 0; i < subIdArr.length(); i++)
{
index = (int)(subIdArr[i]->index());
_itow(index, indexStr, 10);

if (i == 0)
{
wcscpy(subIdIndexStrs, indexStr);
}
else
{
wcscat(subIdIndexStrs, _T("-"));
wcscat(subIdIndexStrs, indexStr);
}
}

struct resbuf rb;
rb.restype = RTSTR;
rb.resval.rstring = subIdIndexStrs;
acedSetVar(_T("users1"), &rb);
return pSolid3d;
}
return NULL;
}
step5: Compile, Generate *.arx file.

step6: copy the file to AutoCAD Support Directory

strp7: Create a new C# project, Add code

Code: [Select]

using System;
using System.Runtime.InteropServices;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.Colors;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;

namespace Cs
{
    public class Class1
    {
        [DllImport("yourARX.arx", CallingConvention = CallingConvention.Cdecl, EntryPoint = "GetSubentIndexs")]
        public static extern IntPtr GetSubentIndexs();

        [CommandMethod("test")]
        public void MyTest()
        {
            Color myColor = Color.FromColorIndex(ColorMethod.ByLayer, 1);
 
            IntPtr rb = GetSubentIndexs();
            if (rb != IntPtr.Zero)
            {
                Solid3d solid3dEnt = DisposableWrapper.Create(typeof(Solid3d), rb, true) as Solid3d;

                if (solid3dEnt != null)
                {
                    string users1Value = (string)Application.GetSystemVariable("users1");
                    String[] strs = users1Value.Split(new char[] { '-' });
                    for (int i = 0; i < strs.Length; i++)
                    {
                        SubentityId subId = new SubentityId(SubentityType.Face, Convert.ToInt16(strs[i]));
                        solid3dEnt.SetSubentityColor(subId, myColor);
                    }
                    solid3dEnt.Close();
                }
            }
        }
    }
}

[It's Alive!]

Good start! a couple of small issues, first,  in the ARX you have a memory leak at subIdArr, you need to iterate the array and delete the pointers, Second you pass an object that's opened for write,  when you should probably pass an ObjectID 

[ahlzl]

Very grateful to the guidance of Daniel!

First Problem,Is this it?

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static void ahlzlArxProject1_MyCommand1(void)
{
// Add your code for command ahlzlArxProject1._MyCommand1 here
AcDbObjectId entId = NULL;
AcDbEntity *pEnt;
AcDb3dSolid *pSolid3d;
AcArray<AcDbSubentId*> subIdArr;
AcEdSolidSubentitySelector subSel;

if (subSel.selectFaces(entId, subIdArr) == Acad::eOk)
{
if (acdbOpenAcDbEntity(pEnt, entId, AcDb::kForWrite) == Acad::eOk)
{
pSolid3d = (AcDb3dSolid*)pEnt;
for (int i = 0; i < subIdArr.length(); i++)
{
AcDbSubentId subId(AcDb::kFaceSubentType, subIdArr[i]->index());
pSolid3d->extrudeFaces(subIdArr, 100.0, 0.0);
[color=red]delete subIdArr[i][/color];
}
pSolid3d->close();
}
}
}

Code: [Select]

extern "C" __declspec(dllexport) AcDb3dSolid* GetSubentIndexs()
{
AcDbObjectId entId = NULL;
AcArray<AcDbSubentId*> subIdArr;
AcEdSolidSubentitySelector subSel;
AcDb3dSolid *pSolid3d = NULL;

if (subSel.selectFaces(entId, subIdArr) == Acad::eOk)
{
acdbOpenObject(pSolid3d, entId, AcDb::kForWrite);

TCHAR subIdIndexStrs[1000];
TCHAR indexStr[10];
int index = 0;

for (int i = 0; i < subIdArr.length(); i++)
{
index = (int)(subIdArr[i]->index());
_itow(index, indexStr, 10);

if (i == 0)
{
wcscpy(subIdIndexStrs, indexStr);
}
else
{
wcscat(subIdIndexStrs, _T("-"));
wcscat(subIdIndexStrs, indexStr);
}
[color=red]delete subIdArr[i];[/color]
}

struct resbuf rb;
rb.restype = RTSTR;
rb.resval.rstring = subIdIndexStrs;
acedSetVar(_T("users1"), &rb);
return pSolid3d;
}
return NULL;
}

[It's Alive!]

I might do something like this (untested) see attachment

.h

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#pragma managed

#pragma once
using namespace System;
using namespace System::Text;
using namespace Autodesk::AutoCAD::DatabaseServices;
using namespace Autodesk::AutoCAD::Geometry;
using namespace Autodesk::AutoCAD::Runtime;


inline Autodesk::AutoCAD::DatabaseServices::SubentityId ToSubentityId(const AcDbSubentId& id)
{
  Autodesk::AutoCAD::DatabaseServices::SubentityId ret;
  GETSUBENTITYID(ret) = id;
  return ret;
}

namespace AcMgdWrprs
{
  public ref class Utilities
  {
     ....
    static bool SolidSubentitySelector([Out]ObjectId %solid,[Out]array<SubentityId> ^%sids);
  };
}

.cpp

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#include "StdAfx.h"
#include "Utilities.h"

using namespace System;
using namespace System::Text;
using namespace System::Collections::Generic;
using namespace Autodesk::AutoCAD::DatabaseServices;
using namespace Autodesk::AutoCAD::Geometry;
using namespace Autodesk::AutoCAD::Runtime;
using namespace Autodesk::AutoCAD::EditorInput;
using namespace Autodesk::AutoCAD::ApplicationServices;

//
namespace AcMgdWrprs
{
  Utilities::Utilities(void)
  {
  }

  ...


  bool Utilities::SolidSubentitySelector( [Out]ObjectId %solid,[Out]array<SubentityId> ^%sids )
  {

    AcDbObjectId entId = NULL;
    AcDb3dSolid *pSolid3d = NULL;
    AcArray<AcDbSubentId*> subIdArr;
    AcEdSolidSubentitySelector subSel;

    if (subSel.selectFaces(entId, subIdArr) == Acad::eOk)
    {
      sids = gcnew array<SubentityId>(subIdArr.length());
      for (int i = 0; i < subIdArr.length(); i++)
      {
        AcDbSubentId *sid = subIdArr[i];
        sids[i] = ToSubentityId(*sid);
        delete sid;
      }
      solid = ToObjectId(entId);
      return true;
    }
    return false;
  }
}


[It's Alive!]

C#

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namespace ExecMethod
{
  public class Commands
  {
    //++--
    [CommandMethod("doit")]
    static public void test()
    {
      Editor ed = AcAp.Application.DocumentManager.MdiActiveDocument.Editor;

      SubentityId[] sids;
      ObjectId id;
      if(AcMgdWrprs.Utilities.SolidSubentitySelector(out id, out sids))
      {
        ed.WriteMessage("\n{0}", id);

        foreach (SubentityId sid in sids)
          ed.WriteMessage("\n{0}", sid.Index);
     
      }
    }
  }
}


[It's Alive!]

here is extrudeFaces

Code: [Select]

bool Utilities::SolidExtrudeFaces( double width, double taper )
  {
    AcDbObjectId entId = NULL;
    AcDb3dSolid *pSolid3d = NULL;
    AcArray<AcDbSubentId*> subIdArr;
    AcEdSolidSubentitySelector subSel;

    if (subSel.selectFaces(entId, subIdArr) == Acad::eOk)
    {
      AcDbObjectPointer<AcDb3dSolid> spr(entId,AcDb::kForWrite);
      spr->extrudeFaces(subIdArr,width,taper);
      for (int i = 0; i < subIdArr.length(); i++)
      {
        AcDbSubentId *sid = subIdArr[i];
        delete sid;
      }
      return true;
    }
    return false;
  }


Code: [Select]

   [CommandMethod("doit")]
    static public void test()
    {
      Editor ed = AcAp.Application.DocumentManager.MdiActiveDocument.Editor;
      if (AcMgdWrprs.Utilities.SolidExtrudeFaces(10, 0))
      {
       
      }
    }


[It's Alive!]

doh, I see that was already in the API 

[ahlzl]

Daniel is too great！

I would like to come to Shanghai (I was born in Shanghai)，When to ask for Danie ARX，But I do not speak English！

[SEANT]

Thanks for the effort guys.  When I do make the jump, the study material here - and the other forum sections - will undoubtedly make the water more inviting.

doh, I see that was already in the API 

It is in the .NET API,  but the method appeared to be setup incorrectly (AutoCAD 2009).  I'll look through these later posts for clues to a straight .NET solution.  I certainly wouldn't be surprised if I missed something on my first go.