请帮忙解决一下创建过两条线的基准面的问题！
作者：cad 提交日期：2009-7-6| 分类: | 访问量：
请帮忙解决一下创建过两条线的基准面的问题！
请帮忙看看:创建过两条线的基准面该怎么弄，谢谢!!!
下面的程序可以运行,也可以选线,但就是出不了基准面,在ProFeatureCreate (mdl_sel, elem_tree, NULL, 0, &feature,&errors);时出问题了,不知道该怎么用那个PRO_DTMPLN_THRU,谢谢指点!
主要的问题是:PRO_DTMPLN_THRU该怎么用?谢谢!
/*====================================================================*\
FUNCTION : CreatOffsetDtm() (创建过两条线的基准面)
\*====================================================================*/
int CreattDtm_twoline()
{
ProError status;
ProElement elem_tree, elem_ftype, elem_consts, elem_offset;
ProElement elem_const_type, elem_offset_ref, elem_offset_dist;
ProModelitem model_modelitem;
ProSelection mdl_sel;
ProFeature feature;
ProErrorlist errors;
ProValueData value_data;
ProSelection * p_select;
ProSelection sel;
int n_select;
ProValue value;
// 为特征树顶层元素elem_tree分配内存
status = ProElementAlloc (PRO_E_FEATURE_TREE, &elem_tree);
// 向特征树添加特征类型元素
int ivalue=PRO_FEAT_DATUM;
UsrElemtreeElementAdd(PRO_E_FEATURE_TYPE,elem_tree,&ivalue,PRO_VALUE_TYPE_INT,&elem_ftype);
// 向特征树添加约束平面集元素elem_consts
status = ProElementAlloc (PRO_E_DTMPLN_CONSTRAINTS, &elem_consts);
ProElemtreeElementAdd (elem_tree, NULL, elem_consts);
///////////
// 向约束平面集元素添加子元素elem_const
status = ProElementAlloc (PRO_E_DTMPLN_CONSTRAINT, &elem_offset);
status = ProElemtreeElementAdd (elem_consts, NULL, elem_offset);
// 设置基准面类型元素，并添加到特征树中
ivalue=PRO_DTMPLN_THRU;
UsrElemtreeElementAdd(PRO_E_DTMPLN_CONSTR_TYPE,elem_offset,
&ivalue,PRO_VALUE_TYPE_INT,&elem_const_type);
// 向特征树添加基准面参照元素
CString wzh;
// ProSelection sel;
ProSolid solid;
status=ProMdlCurrentGet((ProMdl*)&solid);//获得当前模型
/*********
ProSelectionAlloc(NULL, &BasePln, &sel);//选择参照轴线;
UsrElemtreeElementAdd(PRO_E_DTMPLN_CONSTR_REF,elem_offset,
&sel,PRO_VALUE_TYPE_SELECTION,&elem_offset_ref);
*********/
AfxMessageBox("选线");
status = ProSelect ( "axis,datum,line", -1, NULL, NULL, NULL, NULL, &p_select,&n_select );
if ( n_select <= 0 )
{
return ProError(-1);
}
status = ProElementAlloc (PRO_E_DTMPLN_CONSTR_REF,&elem_offset_ref);
value_data.type = PRO_VALUE_TYPE_SELECTION;
value_data.v.r = p_select[0];
// 向特征树添加偏距元素之值
status = ProValueAlloc ( &value );
status = ProValueDataSet ( value, &value_data );
status = ProElementValueSet (elem_offset_ref, value );
wzh.Format("line_1_valueset_%d",status);
AfxMessageBox(wzh);
status = ProElemtreeElementAdd (elem_offset, NULL,elem_offset_ref);
wzh.Format("line_1_ADD_%d",status);
AfxMessageBox(wzh);
//second_line
status = ProElementAlloc (PRO_E_DTMPLN_CONSTRAINT, &elem_offset);
status = ProElemtreeElementAdd (elem_consts, NULL, elem_offset);
status = ProSelect ( "axis,datum,line", -1, NULL, NULL, NULL, NULL, &p_select,&n_select );
if ( n_select <= 0 )
{
return ProError(-1);
}
status = ProElementAlloc (PRO_E_DTMPLN_CONSTR_REF,&elem_offset_ref);
value_data.type = PRO_VALUE_TYPE_SELECTION;
value_data.v.r = p_select[0];
// 向特征树添加偏距元素之值
status = ProValueAlloc ( &value );
status = ProValueDataSet ( value, &value_data );
status = ProElementValueSet (elem_offset_ref, value );
status = ProElemtreeElementAdd (elem_offset, NULL,elem_offset_ref);
wzh.Format("line_2_ADD_%d",status);//这一步出来status=0;
AfxMessageBox(wzh);
// 获得当前模型项的选择对象
ProMdlToModelitem(solid, &model_modelitem);
ProSelectionAlloc(NULL, &model_modelitem, &mdl_sel);
// 创建偏距基准面
status = ProFeatureCreate (mdl_sel, elem_tree, NULL, 0, &feature,&errors);
wzh.Format("feature_%d",status); //这一步出来status=-1;
AfxMessageBox(wzh);
// 释放内存空间
status = ProElementFree (&elem_tree);
status = ProSelectionFree (&mdl_sel);
return (status);
}
其中UsrElemtreeElementAdd()定义如下:
/*====================================================================*\
函数: UsrElemtreeElementAdd()
功能：设置特征元素之值，并将特征元素添加到特征元素树中)
\*====================================================================*/
void UsrElemtreeElementAdd(ProElemId id, //(In)特征元素标识符
ProElement parent, //(In)上级元素
void *value, //(In)特征元素值
ProValueDataType type, //(In)特征元素值类型
ProElement *element //(In)特征元素
)
{
ProValueData value_data;
ProValue pvalue;
value_data.type = type;
//特征元素值类型转换
switch(type)
{
case PRO_VALUE_TYPE_INT :
value_data.v.i = *(int*)value;
break;
case PRO_VALUE_TYPE_DOUBLE :
value_data.v.d = *(double*)value;
break;
case PRO_VALUE_TYPE_POINTER :
value_data.v.p = *(void**)value;
break;
case PRO_VALUE_TYPE_STRING :
value_data.v.s = *(char**)value;
break;
case PRO_VALUE_TYPE_WSTRING :
value_data.v.w = *(wchar_t**)value;
break;
case PRO_VALUE_TYPE_SELECTION :
value_data.v.r = *(ProSelection*)value;
break;
case PRO_VALUE_TYPE_TRANSFORM :
value_data.v.t = *(double***)value;
break;
case PRO_VALUE_TYPE_BOOLEAN :
value_data.v.i = *(int*)value;
break;
}
//设置特征树元素之值
ProElementAlloc(id, element);
ProValueAlloc(&pvalue);
ProValueDataSet(pvalue, &value_data);
ProElementValueSet(*element, pvalue);
//将特征元素添加到特征元素树中
ProElemtreeElementAdd (parent, NULL, *element);
}
*本文摘自：http://www.jxcad.com.cn/read.php?tid=456669&fpage=2
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