2003-november.txt

acis说明文档

From ywenbo at tom.com  Sun Nov  2 11:29:02 2003
From: ywenbo at tom.com (Yang Wenbo)
Date: Sat Nov  1 22:28:21 2003
Subject: [Acis-alliance] save entity?
Message-ID: <008d01c3a0f1$7a70c840$501a75ca@walker>

Hello,
I'm using acisR10. There are the following codes to save entities, which works properly and create sat files desired.
I have formated the disk and installed the MS-Windows and ACIS over again. ACIS have been installed on another disk different to previous one.
I have reconfigured the acis project(this disk isn't formatted) based on Visual C++ according to that change mentioned above. However, there is nothing in sat files created now.
What results in this problem? What should I do?
Any help is appreciated.


void C***View::save_ent(char *filename,ENTITY *ent)
{
    FileInfo info;
    info.set_product_id("Xi'an Jiaotong University");
    info.set_units(1.0);
    api_set_file_info(FileId|FileUnits,info);
    FILE *fp=fopen(filename,"w");
    if(fp!=NULL)
    {
        ENTITY_LIST* savelist=new ENTITY_LIST;
        savelist->add(ent);
        api_save_entity_list(fp,TRUE,*savelist);   //TRUE:sat, FALSE:sab
        delete savelist;
    }
    else
    {
    }
    printf("不能打开文件\n");
    fclose(fp);
}
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From kissandras at xnet.ro  Mon Nov  3 11:10:01 2003
From: kissandras at xnet.ro (Andras Kiss)
Date: Mon Nov  3 04:09:30 2003
Subject: [Acis-alliance] Re: Acis-alliance Digest, Vol 8, Issue 1
In-Reply-To: <[e-mail]>
References: <[e-mail]>
Message-ID: <oprx102ztbz8pt1n@localhost>

On Sun, 02 Nov 2003 14:35:43 -0500, <[e-mail]> 
wrote:
> Hello,
> I'm using acisR10. There are the following codes to save entities, which 
> works properly and create sat files desired.
> I have formated the disk and installed the MS-Windows and ACIS over 
> again. ACIS have been installed on another disk different to previous 
> one.
> I have reconfigured the acis project(this disk isn't formatted) based on 
> Visual C++ according to that change mentioned above. However, there is 
> nothing in sat files created now.
> What results in this problem? What should I do?
> Any help is appreciated.
>
> void C***View::save_ent(char *filename,ENTITY *ent)
> {
> FileInfo info;
> info.set_product_id("Xi'an Jiaotong University");
> info.set_units(1.0);
> api_set_file_info(FileId|FileUnits,info);
> FILE *fp=fopen(filename,"w");
> if(fp!=NULL)
> {
> ENTITY_LIST* savelist=new ENTITY_LIST;
> savelist->add(ent);
> api_save_entity_list(fp,TRUE,*savelist);   //TRUE:sat, FALSE:sab
> delete savelist;
> }
> else
> {
> }
> printf("????????????\n");
> fclose(fp);
> }
>
It seems that everything is OK but you should insert in the info your 
version
ID from ACIS with the following code:

char id_string[33];

if (get_point_version() > 0)
	    sprintf(id_string, "Xi'an Jiaotong University - %d.%d.%d",
        get_major_version(),
        get_minor_version(),
        get_point_version());
    else
	   sprintf(id_string, "Xi'an Jiaotong University - %d.%d",
       get_major_version(),
       get_minor_version());
info.set_product_id(id_string);

The code above assume that you have declared the enviroment variables as I 
described in Volume 7, Issue 11.

Andras.
P.S. Tell me if it works.

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From alames at sandia.gov  Wed Nov  5 10:10:38 2003
From: alames at sandia.gov (Ames, Arlo)
Date: Wed Nov  5 12:12:19 2003
Subject: [Acis-alliance] Regaring Display of threads
Message-ID: <[e-mail]>

What you are asking for guarantees slowness.  The NURBS faces required for
representing threads are very complex.  When you facet them for display,
their curvature will cause a very large number of facets to be created.
This is a fundamental geometric behavior, and is no flaw in ACIS or any
other geometric modeler.  Explicit modeling of geometric details begs this
kind of slowness.  Sorry, but that's life.

Arlo Ames
[e-mail]


-----Original Message-----
From: Ajit Narayan Patil [mailto:[e-mail]]
Sent: Monday, October 27, 2003 10:33 PM
To: [e-mail]
Subject: [Acis-alliance] Regaring Display of threads
Importance: High


Dear Friends

I am using following code for generation of threads on cylinderical shaft
But when i call  this function display of part is very slow and when i
display same part in wireframe it take long time.
also time for sweep operation is long.

Can anyone tell how to reduce time for this.

Thanks in advance.

Ajit

void CFBMTurnDoc::OnThread()
{
	// TODO: Add your command handler code here


	//api_initialize_sweeping(); // Initializes the sweep library
		PART* part = m_pAcisDoc->Part();

		double pitch=2;
		double Xposition=15.0;
		double Zposition=60.0;
		double length=6.0;
		double startposi=Zposition-pitch;
		position axis_start(0,0,startposi);// axis start position
        double endposi=Zposition+length+pitch;
		position axis_end(0,0,endposi);  // axis end position
		vector start_dir(0,1,0);    // from axis_start to helix
start
		double radius = 15;         // major radius of helix
		pitch;           // distance between turns along axis
		logical handiness = FALSE;  // TRUE is right  FALSE is left

		EDGE *helix; // pointer to the helix created

		api_edge_helix (axis_start, //creates the helix
		                axis_end,
						start_dir,
						radius,
						pitch,
					    handiness,
						helix);

	/*	VERTEX *v1= helix->start(); // get the coordinates of
		                            // its start vertex
		APOINT *p1 = v1->geometry();

		position origin = p1->coords();

		const curve& cur = helix->geometry()->equation();
                                    // curve direction at start
		unit_vector normal = cur.point_direction(origin);*/

position pts[3];
       double h=pitch*0.86603;
       double zpt0=Zposition-(pitch/2.1);
       pts[0] = position( 0,Xposition, zpt0);
	   double zpt1=zpt0+(pitch/16.0);
	   double xpt1=Xposition-(pitch/16.0);
	   double xpt2=Xposition-(h-(h/8.0));
       pts[1] = position( 0,xpt2,Zposition);
	   double zpt3=Zposition+(pitch/2.0)-(pitch/16.0);
	   pts[2] = position( 0,Xposition,(zpt3+pitch/16.0));
	   double xpt5=Xposition+pitch/16.0;

    // Construct an edge that is a linear line.

        EDGE *my_linear[3];

        api_curve_line( pts[0], pts[1], my_linear[0]);
        api_curve_line( pts[1], pts[2], my_linear[1]);
	api_curve_line( pts[2], pts[0], my_linear[2]);


	ENTITY_LIST *edlist = new ENTITY_LIST;

	edlist->add(my_linear[0]);
	edlist->add(my_linear[1]);
	edlist->add(my_linear[2]);
    // Create a wire-body from a list of edges.

        BODY *my_wirebody = NULL;
        outcome result;
       result = api_make_ewire( 3, my_linear, my_wirebody);

       CheckOutcome(result);



        ENTITY_LIST my_profile_faces;
    	my_profile_faces.init();
		api_cover_circuits (1, &edlist, *(surface*)NULL_REF,
my_profile_faces);


		 BODY *my_sweep;

        FACE *my_sweep_face;

        my_sweep_face = (FACE *)my_profile_faces[0];

        result = api_mk_by_faces(NULL, 1, &my_sweep_face, my_sweep);
        CheckOutcome(result);



	BODY *spring;
	sweep_options *opts = new sweep_options(); //use default values

		//This API can take a few seconds to execute
		result = api_sweep_with_options (
						my_sweep_face, // profile to
sweep
							helix, // path to
sweep along
							opts, // sweep
options
							spring // swept body
returned
								);
		CheckOutcome(result);
		AfxMessageBox("Thread Done");
      //  outcome res1 =api_subtract(my_sweep,cyl1);
		entity_filter* filter=NULL;
	ENTITY_LIST elist;
	BODY* temp;

    api_subtract(my_sweep,TurnPart);
	api_copy_body(TurnPart,temp);

    result = api_part_entities (part,filter,elist);

	CheckOutcome(result);


	 	for(int i=0; i<elist.count(); i++)
				{
					ENTITY *ent = elist[i];

					int test=elist.count();
					//record_entity( ent);
					api_del_entity(ent);

				}


	result = api_part_add_entity(temp,part);
	CheckOutcome(result);
	// Display the ENTITIES
	view3d* pTolView = m_pAcisDoc->SetDisplayTol(); // SET TOLERANCE

	if(result.ok() && part)
	{
		if (m_pAcisDoc->GetAutoDisplay())
		{
			// Make sure the views are invalidated
			m_pAcisDoc->InvalidateViews();
				AfxMessageBox("Thread Display");
		}
	}




}




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From tgerisch at klaes.de  Thu Nov  6 12:10:12 2003
From: tgerisch at klaes.de ([e-mail])
Date: Thu Nov  6 07:06:57 2003
Subject: [Acis-alliance] Delayed loading of Acis shared libraries
Message-ID: <DIIE.00000002000000E4@192.168.115.1>

Hello Everbody

Does anyone know, if (or better how) it is possible to load all Acis shared 
libraries (Windows, Acis R10) with the VCPP-linker option /DELAYLOAD

and prevent linker errors like

LINK : fatal error LNK1194: Verz?gertes Laden f?r base100.dll aufgrund des Imports des Datensymbols "__declspec(dllimport) void *  NULL_REF" (__imp_?NULL_REF
Thanks in advance.

Thomas Gerisch
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From lzguo at mail.com  Thu Nov  6 20:50:33 2003
From: lzguo at mail.com (liu zhiguo)
Date: Thu Nov  6 20:50:46 2003
Subject: [Acis-alliance] question on saving and spliting edges
Message-ID: <[e-mail]>

Dear all acis-alliance members,

  I have read ENTITY_LIST of faces(face_list). I have gotten all the edges and saved them to a new ENTITY_LIST(onlyedge). I can find some edges in onlyedge ENTITY LIST and split them by point. Now I want to save the splited edges to a new SAT file. I know I can not save edge only, so I want to do it by using CURVE. 
//------------------------------------
  	CURVE * testedge[100];
	for(i=0;i<onlyedge.count();i++)
	{
		EDGE * mmm=(EDGE*)onlyedge[i];
		testedge[i]=mmm->geometry();
		savelist->add(testedge[i]);
	}  
	api_save_entity_list(fp,TRUE,*savelist);
//-------------------------------------
But my SAT file only contains the information of the follow data:

straight-curve $-1 -1 -1 $-1 95.309108183528195 10.3420521645956 0 -45.309108183528195 0 0 F 0 F 1 #
straight-curve $-1 -1 -1 $-1 50 10.3420521645956 0 0 29.6579478354044 0 F 0 F 1 #
straight-curve $-1 -1 -1 $-1 95.309108183528195 40 0 45.309108183528195 0 0 F -1 F 0 #
straight-curve $-1 -1 -1 $-1 95.309108183528195 10.3420521645956 0 0 -29.6579478354044 0 F -1 F 0 #
straight-curve $-1 -1 -1 $-1 97.7425322222565 -48.8712661111282 0 -47.7425322222565 0 0 F 0 F 1 #
straight-curve $-1 -1 -1 $-1 50 -48.8712661111282 0 0 59.2133182757238 0 F 0 F 1 #
straight-curve $-1 -1 -1 $-1 97.7425322222565 10.3420521645956 0 47.7425322222565 0 0 F -1 F 0 #
straight-curve $-1 -1 -1 $-1 97.7425322222565 -48.8712661111282 0 0 -59.2133182757238 0 F -1 F 0 #
straight-curve $-1 -1 -1 $-1 50 -40 0 -50 0 0 F 0 F 1 #
straight-curve $-1 -1 -1 $-1 0 -40 0 0 40 0 F 0 F 1 #
straight-curve $-1 -1 -1 $-1 50 0 0 50 0 0 F -1 F 0 #
straight-curve $-1 -1 -1 $-1 50 -40 0 0 -40 0 F -1 F 0 #
straight-curve $-1 -1 -1 $-1 0 0 0 50 0 0 F 0 F 1 #