文本盒三种方式获取

gzxl

文本盒（好像三种方式）获取，总结 getGeomExtents 比较其他两者范围大些，acedTextBox 和 AcGiTextStyle 差不多。



getGeomExtents 方式

1. ads_name eName;
   
2. ads_point pt;
   
3. if (RTNORM != acedEntSel(_T("\n选择一个单行文字画包围盒:"), eName, pt))
   
4.     return;
   
5. AcDbObjectId objId;
   
6. acdbGetObjectId(objId, eName);
   
7. AcDbText* pText;
   
8. acdbOpenObject(pText, objId, AcDb::kForRead);
   
9. if (objId == NULL)
   
10.     return;
    
11. 
    
12. AcDbExtents ext;
    
13. pText->getGeomExtents(ext);
    
14. AcGePoint2d minPt, maxPt; // 左下角 右上角
    
15. minPt[X] = ext.minPoint().x;
    
16. minPt[Y] = ext.minPoint().y;
    
17. maxPt[X] = ext.maxPoint().x;
    
18. maxPt[Y] = ext.maxPoint().y;
    
19. pText->close();
    
20. 
    
21. // 左上角 右下角
    
22. AcGePoint2d ptLeftTop(minPt.x, maxPt.y);
    
23. AcGePoint2d ptRightBottom(maxPt.x, minPt.y);
    
24. AcDbPolyline *pPoly = new AcDbPolyline(4);
    
25. pPoly->addVertexAt(0, minPt, 0, 0, 0);
    
26. pPoly->addVertexAt(1, ptRightBottom, 0, 0, 0);
    
27. pPoly->addVertexAt(2, maxPt, 0, 0, 0);
    
28. pPoly->addVertexAt(3, ptLeftTop, 0, 0, 0);
    
29. pPoly->setClosed(Adesk::kTrue);
    
30. 
    
31. AcDbBlockTable* pBlockTable;
    
32. acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pBlockTable, AcDb::kForRead);
    
33. AcDbBlockTableRecord* pBlockTableRecord;
    
34. pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord, AcDb::kForWrite);
    
35. AcDbObjectId polyId;
    
36. pBlockTableRecord->appendAcDbEntity(polyId, pPoly);
    
37. pBlockTable->close();
    
38. pBlockTableRecord->close();
    
39. pPoly->close();

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acedTextBox 方式

1. // 结果缓冲区列表中搜索指定类型的组码
   
2. static struct resbuf* EntItem(struct resbuf *rchain, int gcode)
   
3. {
   
4. while ((rchain != NULL) && (rchain->restype != gcode))
   
5.     rchain = rchain->rbnext;
   
6. return rchain;
   
7. }
   
8. 
   
9. ads_name tname;
   
10. struct resbuf *textent, *tent;
    
11. ads_point origin, lowleft, upright, p1, p2, p3, p4;
    
12. ads_real rotatn;
    
13. TCHAR rotatstr[15];
    
14. if (acedEntSel(_T("\n选择一个单行文字画包围盒: "), tname, p1) != RTNORM)
    
15. {
    
16.     acdbFail(_T("没有选择文本实体\n"));
    
17.     return;
    
18. }
    
19. textent = acdbEntGet(tname);
    
20. if (textent == NULL)
    
21. {
    
22.     acdbFail(_T("无法检索文本实体\n"));
    
23.     return;
    
24. }
    
25. tent = EntItem(textent, 10);
    
26. origin[X] = tent->resval.rpoint[X]; // ECS 坐标
    
27. origin[Y] = tent->resval.rpoint[Y];
    
28. tent = EntItem(textent, 50);
    
29. rotatn = tent->resval.rreal;
    
30. // acdbAngToS() 将弧度转换为度数
    
31. if (acdbAngToS(rotatn, 0, 8, rotatstr) != RTNORM)
    
32. {
    
33.     acdbFail(_T("弧度转换为度数失败!\n"));
    
34.     acutRelRb(textent);
    
35.     return;
    
36. }
    
37. if (acedTextBox(textent, lowleft, upright) != RTNORM)
    
38. {
    
39.     acdbFail(_T("无法检索文本框坐标\n"));
    
40.     acutRelRb(textent);
    
41.     return;
    
42. }
    
43. acutRelRb(textent);
    
44. // 如果当前不在 WCS 中，此时添加
    
45. // 调用 acedTrans() 转换坐标
    
46. // 从 acedTextBox() 中检索
    
47. p1[X] = origin[X] + lowleft[X]; // UCS 坐标
    
48. p1[Y] = origin[Y] + lowleft[Y];
    
49. p2[X] = origin[X] + upright[X];
    
50. p2[Y] = origin[Y] + lowleft[Y];
    
51. p3[X] = origin[X] + upright[X];
    
52. p3[Y] = origin[Y] + upright[Y];
    
53. p4[X] = origin[X] + lowleft[X];
    
54. p4[Y] = origin[Y] + upright[Y];
    
55. 
    
56. AcGePoint2d pt1, pt2, pt3, pt4;
    
57. pt1[X] = p1[X];
    
58. pt1[Y] = p1[Y];
    
59. pt2[X] = p2[X];
    
60. pt2[Y] = p2[Y];
    
61. pt3[X] = p3[X];
    
62. pt3[Y] = p3[Y];
    
63. pt4[X] = p4[X];
    
64. pt4[Y] = p4[Y];
    
65. 
    
66. AcDbPolyline *pPoly = new AcDbPolyline(4);
    
67. pPoly->addVertexAt(0, pt1, 0, 0, 0);
    
68. pPoly->addVertexAt(1, pt2, 0, 0, 0);
    
69. pPoly->addVertexAt(2, pt3, 0, 0, 0);
    
70. pPoly->addVertexAt(3, pt4, 0, 0, 0);
    
71. pPoly->setClosed(Adesk::kTrue);
    
72. 
    
73. AcDbBlockTable* pBlockTable;
    
74. acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pBlockTable, AcDb::kForRead);
    
75. AcDbBlockTableRecord* pBlockTableRecord;
    
76. pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord, AcDb::kForWrite);
    
77. AcDbObjectId polyId;
    
78. pBlockTableRecord->appendAcDbEntity(polyId, pPoly);
    
79. pBlockTable->close();
    
80. pBlockTableRecord->close();
    
81. pPoly->close();
    
82. 
    
83. AcGePoint3d ptBase;
    
84. ptBase.x = origin[X];
    
85. ptBase.y = origin[Y];
    
86. ptBase.z = 0.0;
    
87. 
    
88. AcGeMatrix3d xform;
    
89. AcGeVector3d vec(0, 0, 1);
    
90. xform.setToRotation(rotatn, vec, ptBase);
    
91. AcDbEntity *pEnt = NULL;
    
92. Acad::ErrorStatus es = acdbOpenObject(pEnt, polyId, AcDb::kForWrite, false);
    
93. if (es == Acad::eOk)
    
94. {
    
95.     es = pEnt->transformBy(xform);
    
96.     pEnt->close();
    
97. }

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AcGiTextStyle 方式

1. Acad::ErrorStatus es = Acad::eOk;
   
2. AcGiTextStyle textStyle;
   
3. AcDbTextStyleTable* pTable = NULL;
   
4. AcDbTextStyleTableRecord* pRecord = NULL;
   
5. acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pTable, AcDb::kForRead);
   
6. const ACHAR* styleName = strFontName;
   
7. es = pTable->getAt(styleName, pRecord, AcDb::kForRead);
   
8. if (es == Acad::eOk)
   
9. {
   
10.     fromAcDbTextStyle(textStyle, pRecord->objectId());
    
11.     pRecord->close();
    
12.     pTable->close();
    
13.     textStyle.loadStyleRec();
    
14.     textStyle.extentsBox(str, Adesk::kFalse, _tcslen(str), Adesk::kTrue, extMin, extMax);
    
15. }

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革天明

谢谢楼主分享

你有种再说一遍

我还以为有解析字体文件了

gzxl

AcGiTextStyle 方式没写全，补一下。

1.     // AcGiTextStyle 方式
   
2.     static void GetTextStrBox(LPCTSTR str, const CString& strFontName, AcGePoint2d& extMin, AcGePoint2d& extMax)
   
3.     {
   
4.         Acad::ErrorStatus es = Acad::eOk;
   
5.         AcGiTextStyle textStyle;
   
6.         AcDbTextStyleTable* pTable = NULL;
   
7.         AcDbTextStyleTableRecord* pRecord = NULL;
   
8.         acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pTable, AcDb::kForRead);
   
9.         const ACHAR* styleName = strFontName;
   
10.         es = pTable->getAt(styleName, pRecord, AcDb::kForRead);
    
11.         if (es == Acad::eOk)
    
12.         {
    
13.             fromAcDbTextStyle(textStyle, pRecord->objectId());
    
14.             pRecord->close();
    
15.             pTable->close();
    
16.             textStyle.loadStyleRec();
    
17.             textStyle.extentsBox(str, Adesk::kFalse, _tcslen(str), Adesk::kTrue, extMin, extMax);
    
18.         }
    
19.     }
    
20. 
    
21.         ads_name eName;
    
22.         ads_point pt;
    
23.         if (RTNORM != acedEntSel(_T("\n选择一个单行文字画包围盒:"), eName, pt))
    
24.             return;
    
25.         AcDbObjectId objId;
    
26.         acdbGetObjectId(objId, eName);
    
27.         AcDbText* pText = NULL;
    
28.         acdbOpenObject(pText, objId, AcDb::kForRead);
    
29.         if (objId == AcDbObjectId::kNull)
    
30.             return;
    
31.         ACHAR* acText = pText->textString();
    
32.         CString strText = acText;
    
33.         delete[]acText;
    
34.         AcDbObjectId textStyleId = pText->textStyle();
    
35.         AcDbTextStyleTableRecord* pTextStyleRcd = NULL;
    
36.         if (acdbOpenObject(pTextStyleRcd, textStyleId, AcDb::kForRead) == Acad::eOk)
    
37.         {
    
38.             ACHAR* textStyleName;
    
39.             pTextStyleRcd->getName(textStyleName);
    
40.             CString strFontName(textStyleName);
    
41.             pTextStyleRcd->close();
    
42.             delete[]textStyleName;
    
43.             // 使用 AcGiTextStyle 查找文本字符串的范围
    
44.             AcGePoint2d extMin, extMax;
    
45.             GetTextStrBox(strText, strFontName, extMin, extMax);
    
46.             // 范围点赋值给 pt1 pt2
    
47.             AcGePoint3d pt1(extMin.x, extMin.y, 0.0);
    
48.             AcGePoint3d pt2(extMax.x, extMax.y, 0.0);
    
49.             // 3D 空间的仿射变换
    
50.             AcGeMatrix3d coordSysMat;
    
51.             // 返回与文本平面法线向量正交的向量(法线向量 WCS 坐标)
    
52.             AcGeVector3d xAxis = pText->normal().perpVector();
    
53.             // 返回文本平面法线向量的叉积
    
54.             AcGeVector3d yAxis = pText->normal().crossProduct(xAxis);
    
55.             // 输入角度围绕输入点旋转实体
    
56.             xAxis.rotateBy(pText->rotation(), pText->normal());
    
57.             yAxis.rotateBy(pText->rotation(), pText->normal());
    
58.             // 设置矩阵
    
59.             coordSysMat.setCoordSystem(pText->position(), xAxis, yAxis, pText->normal());
    
60.             // 应用变换矩阵
    
61.             pt1.transformBy(coordSysMat);
    
62.             pt2.transformBy(coordSysMat);
    
63.             // 提取两个角点的坐标值
    
64.             double x1 = pt1.x, x2 = pt2.x;
    
65.             double y1 = pt1.y, y2 = pt2.y;
    
66.             // 计算矩形的角点
    
67.             AcGePoint2d ptLeftBottom(min(x1, x2), min(y1, y2));
    
68.             AcGePoint2d ptRightBottom(max(x1, x2), min(y1, y2));
    
69.             AcGePoint2d ptRightTop(max(x1, x2), max(y1, y2));
    
70.             AcGePoint2d ptLeftTop(min(x1, x2), max(y1, y2));
    
71.             // 创建多段线
    
72.             AcDbPolyline* pPoly = new AcDbPolyline(4);
    
73.             pPoly->addVertexAt(0, ptLeftBottom, 0, 0, 0); // 添加顶点
    
74.             pPoly->addVertexAt(1, ptRightBottom, 0, 0, 0);
    
75.             pPoly->addVertexAt(2, ptRightTop, 0, 0, 0);
    
76.             pPoly->addVertexAt(3, ptLeftTop, 0, 0, 0);
    
77.             pPoly->setClosed(Adesk::kTrue); // 设置闭合
    
78.             // 获得当前图形数据库的块表
    
79.             AcDbBlockTable* pBlockTable = NULL;
    
80.             acdbHostApplicationServices()->workingDatabase()->getSymbolTable(pBlockTable, AcDb::kForRead);
    
81.             // 获得模型空间对应的块表记录
    
82.             AcDbBlockTableRecord* pBlockTableRecord = NULL;
    
83.             pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord, AcDb::kForWrite);
    
84.             // 将多段线实体添加到模型空间的块表记录
    
85.             AcDbObjectId polyId;
    
86.             pBlockTableRecord->appendAcDbEntity(polyId, pPoly);
    
87.             // 关闭模型空间块表记录和多段线实体
    
88.             pBlockTable->close();
    
89.             pBlockTableRecord->close();
    
90.             pPoly->close();
    
91.         }
    
92.         pText->close();

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czb203

谢谢楼主分享