OBJECT ARX 绘制常用图形 总结

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1. 将图形加载显示到CAD===================
2. static AcDbObjectId LoadEntity(AcDbEntity* entity){
3. AcDbBlockTable* pBlockTable;
4. acdbHostApplicationServices()->workingDatabase()->getBlockTable(pBlockTable,AcDb::kForRead);
7. AcDbBlockTableRecord* pBlockTableRecord;
8. pBlockTable->getAt(ACDB采用MODEL采用SPACE,pBlockTableRecord,AcDb::kForWrite);
11. AcDbObjectId Id;
12. pBlockTableRecord->appendAcDbEntity(Id,entity);
15. pBlockTable->close();
18. pBlockTableRecord->close();
20. entity->close();
21. return Id;
22. }
26. 为图形添加标注
27. static void AddOrdinate(AcGePoint3d ptStart,AcGePoint3d ptEnd,
28. CString text){
31. AcDbOrdinateDimension* pDim = new
32. AcDbOrdinateDimension(true,ptStart,ptEnd,text);
35. LoadEntity(pDim);
38. }
43. 画线====================
44. static void TESTlineCmd()
45. {
46. //acutPrintf(采用T("\nHello"));
48. ads采用point inputStart;
49. ads采用point inputEnd;
52. AcGePoint3d ptStart;
53. AcGePoint3d ptEnd;
56. 用户输入要画的坐标
57. if(acedGetPoint(NULL,采用T("start point"),inputStart) != RTNORM){
58. return;
59. }
60. ptStart[X] = inputStart[X];
61. ptStart[Y] = inputStart[Y];
62. ptStart[Z] = inputStart[Z];
64. if(acedGetPoint(NULL,采用T("end point"),inputEnd) != RTNORM){
66. return;
67. }
68. ptEnd[X] = inputEnd[X];
69. ptEnd[Y] = inputEnd[Y];
70. ptEnd[Z] = inputEnd[Z];
73. AcDbLine* pLine = new AcDbLine(ptStart,ptEnd);
74. pLine->setColorIndex(2);
75. LoadEntity(pLine);
77. AddOrdinate(ptStart,ptEnd,采用T("hi"));
78. //AfxMessageBox(采用T("命令画了一条线"));
79. }
84. 画圆形==========================
86. static void TESTcirclecmd(){
87. 垂直平面法向量
88. AcGeVector3d vec(0,0,1);
89. 圆心
90. AcGePoint3d ptCenter(100,100,100);
93. AcDbCircle* pCircle = new AcDbCircle(ptCenter,vec,1000);
95. LoadEntity(pCircle);
96. }
99. 画圆弧================================
102. static void TESTarccmd(){
103. AcGeVector3d vec(0,0,1);
104. AcGePoint3d ptCenter(500,500,500);
105. AcDbArc* pArc = new AcDbArc(ptCenter,vec,700,0,90);
106. LoadEntity(pArc);
107. }
110. 画多线段============================
113. static void TESTpolycmd(){
115. 构造多点数组
116. AcGePoint2dArray points;
118. AcGePoint2d pt1(1000, 1000);
119. AcGePoint2d pt2(2000, 1800);
120. AcGePoint2d pt3(500, 2000);
121. AcGePoint2d pt4(3000, 5000);
122. points.append(pt1);
123. points.append(pt2);
124. points.append(pt3);
125. points.append(pt4);
128. 绘制多点线段
129. AcDbPolyline* pl = new AcDbPolyline(points.length());
130. for(int i = 0;i < points.length();i ++){
132. pl->addVertexAt(i,points.at(i),0,0.5,0.5);
133. }
136. LoadEntity(pl);
137. }
139. 绘制POLY3d线段====================
140. static void TESTpoly3dcmd(){
142. 构造多点数组
143. AcGePoint3dArray points;
145. AcGePoint3d pt1(10, 10,10);
146. AcGePoint3d pt2(20, 10,20);
147. AcGePoint3d pt3(20, 20,30);
148. points.append(pt1);
149. points.append(pt2);
150. points.append(pt3);
153. 绘制多点线段
154. AcDb3dPolyline* pl = new AcDb3dPolyline(AcDb::Poly3dType::k3dSimplePoly,points);
157. LoadEntity(pl);
158. }
161. 绘制椭圆=========================
162. static void TESTellipsecmd(){
163. 椭圆焦点
164. /* AcGePoint2d p1(400,400);
165. AcGePoint2d p2(800,400);*/
170. 中心点
171. AcGePoint3d ptCenter(600,400,0);
174. AcGeVector3d vecNormal(0,0,1);
175. 长轴
176. AcGeVector3d majorAxis(1000,0,0);
179. 通过曲率确定短轴长度
180. double ratio = 0.6;
183. AcDbEllipse* ae = new AcDbEllipse(/*AcGePoint3d::kOrigin*/ptCenter,vecNormal,majorAxis,
184. ratio);
185. LoadEntity(ae);
188. }
193. 创建样条曲线================
194. static void TESTsplinecmd(){
195. AcGePoint3d p1(0,0,0),p2(200,600,0),p3(1200,1600,0),
196. p4(2000,2000,0);
197. AcGePoint3dArray points;
198. points.append(p1);
199. points.append(p2);
200. points.append(p3);
201. points.append(p4);
203. AcDbSpline* as = new AcDbSpline(points);
204. LoadEntity(as);
207. }
210. 创建面域(把用直线创建的闭合图形，生成一个图形的对象)
211. static void TESTregioncmd(){
213. ads采用name ss;
214. 提示用户选择对象
215. int rt = acedSSGet(NULL,NULL,NULL,NULL,ss);
216. AcDbObjectIdArray ids;
219. if(rt == RTNORM){
221. long len;
222. 获得对象个数
223. acedSSLength(ss,&len);
224. for(int i = 0;i < len;i ++){
226. 先从对象中得到名字
227. ads采用name ent;
228. acedSSName(ss,i,ent);
231. 再从名字中取出ID
232. AcDbObjectId objId;
233. acdbGetObjectId(objId,ent);
234. ids.append(objId);
235. }
238. }
242. acedSSFree(ss);
245. 得到objId数组之后，开始画区域
248. CreateRegion(ids);
249. }
252. 绘制面域
253. static AcDbObjectIdArray  CreateRegion(AcDbObjectIdArray ids){
256. AcDbObjectIdArray regionIds;
257. AcDbVoidPtrArray curves;
258. AcDbVoidPtrArray regions;
259. AcDbEntity* pEnt;
260. AcDbRegion* pRegion;
263. for(int i = 0;i < ids.length();i ++){
265. acdbOpenAcDbEntity(pEnt,ids.at(i),AcDb::kForRead);
267. if(pEnt->isKindOf(AcDbCurve::desc())){
269. curves.append(static采用cast<void*>(pEnt));
270. }
271. }
274. Acad::ErrorStatus es = AcDbRegion::createFromCurves(curves,regions);
275. if(es == Acad::eOk){
277. for(int i = 0;i < regions.length();i ++){
279. pRegion = static采用cast<AcDbRegion*>(regions[i]);
280. pRegion->setDatabaseDefaults();
281. AcDbObjectId regionId = LoadEntity(pRegion);
282. regionIds.append(regionId);
283. }
286. CString tipStr ;
287. tipStr.Format(采用T("\n已成功创建面域:%d个"),regions.length());
289. acutPrintf(tipStr);
290. }
291. else{
294. for(int i = 0;i < regions.length();i ++){
296. delete (AcRxObject*)regions[i];
297. }
298. }
301. for(int i = 0;i < ids.length();i ++){
303. pEnt = static采用cast<AcDbEntity*>(curves[i]);
304. pEnt->close();
305. }
308. return regionIds;
309. }
312. //绘制文字===================
313. static void TESTtextcmd(){
315. AcGePoint3d ptInsert(0,400,0);
317. AcDbMText* pMText = new AcDbMText();
319. 设置多行文字特性
322. pMText->setContents(采用T("hello!!"));
323. pMText->setLocation(ptInsert);
324. pMText->setTextHeight(1000);
325. pMText->setWidth(1000);
326. pMText->setAttachment(AcDbMText::kBottomLeft);
329. LoadEntity(pMText);
332. }
337. 创建填充======================
338. static void TESThatchcmd(){
340. 提示用户选择填充边界
341. ads采用name ss;
342. int rt = acedSSGet(NULL,NULL,NULL,NULL,ss);
343. AcDbObjectIdArray objIds;
346. if(rt == RTNORM){
348. long len;
349. acedSSLength(ss,&len);
350. for(int i = 0;i < len;i ++){
352. ads采用name ent;
353. acedSSName(ss,i,ent);
354. AcDbObjectId objId;
355. acdbGetObjectId(objId,ent);
356. objIds.append(objId);
357. }
358. }
359. acedSSFree(ss);
362. 选择完毕，绘制填充
365. Acad::ErrorStatus es;
366. AcDbHatch* pHatch = new AcDbHatch();
369. 选择填充平面
370. AcGeVector3d normal(0,0,1);
371. pHatch->setNormal(normal);
372. pHatch->setElevation(0);
375. 设置关联性
376. pHatch->setAssociative(true);
378. 设置填充图案
379. pHatch->setPattern(AcDbHatch::kPreDefined,采用T(/*"SOLID"*/"ANSI31"));
381. 设置填充角度
382. pHatch->setPatternAngle(45);
383. 设置填充边界
386. es=pHatch->appendLoop(AcDbHatch::kExternal,objIds);
389. 显示填充对象
392. es=pHatch->evaluateHatch();
393. LoadEntity(pHatch);
394. }
397. 交互函数练习==================
400. static void TESTinputcmd(){
401. CString outStr;
402. //acedGetReal
403. /*ads采用real realNum;
404. acedGetReal(采用T("输入一个实数"),&realNum);
405. outStr.Format(采用T("%lf"),realNum);
406. acutPrintf(outStr);*/
407. //acedGetInt
408. /*int iNum;
409. acedGetInt(采用T("输入一个整数"),&iNum);
410. outStr.Format(采用T("%d"),iNum);
411. acutPrintf(outStr);*/
412. //acedGetString
413.    /*TCHAR str[256];
414. acedGetString(0,采用T("输入一个字符串"),str);
415. acutPrintf(str);*/
416. //acedGetKword
417. /* TCHAR kw[256];
418. acedGetKword(采用T("输入一个关键字"),kw);
419. acutPrintf(kw);*/
420. //acedGetPoint
421. /* ads采用point pt;
422. acedGetPoint(NULL,采用T("输入一个点"),pt);
423. outStr.Format(采用T("x:%f,y:%f"),pt[X],pt[Y]);
424. acutPrintf(outStr);*/
425. //acedGetCorner(要与ads采用point联合使用，完成画矩形)
426. /*ads采用point ptCorner;
427. acedGetCorner(pt,采用T("输入对角点"),ptCorner);
428. outStr.Format(采用T("x:%f,y:%f"),ptCorner[X],ptCorner[Y]);
429. acutPrintf(outStr);*/
430. //acedGetDist(和ads采用point结合使用，实现画线)
431. /*ads采用real ptReal;
432. acedGetDist(pt,采用T("输入目标值"),&ptReal);
433. outStr.Format(采用T("%lf"),ptReal);
434. acutPrintf(outStr);*/
435. //acedGetAngle(和ads采用point结合使用，实现画线)
436. /* ads采用real agReal;
437. acedGetAngle(pt,采用T("输入一个角度"),&agReal);
438. outStr.Format(采用T("%lf"),agReal);
439. acutPrintf(outStr);*/
444. }
452. //获得一层的所有对象,变色===============
453. static void TESTgetlayerobjcmd(){
457. AcDbLayerTable *pLayerTbl;
458. acdbHostApplicationServices()->workingDatabase()->getSymbolTable(
459. pLayerTbl,AcDb::kForRead);
462. if(!pLayerTbl->has(采用T("测试"))){
464. acutPrintf(采用T("\n当前图形未包含'测试'图层"));
465. pLayerTbl->close();
466. return;
467. }
468. AcDbObjectId layerId;
469. pLayerTbl->getAt(采用T("测试"),layerId);
470. pLayerTbl->close();
473. 获得当前数据库的块表
474. AcDbBlockTable* pBlkTbl;
475. acdbHostApplicationServices()->workingDatabase()->getBlockTable(
476. pBlkTbl,AcDb::kForRead);
477. 获得模型空间的块表记录
478. AcDbBlockTableRecord* pBlkTblRcd;
479. pBlkTbl->getAt(ACDB采用MODEL采用SPACE,pBlkTblRcd,AcDb::kForRead);
480. pBlkTbl->close();
483. 创建块表记录遍历器
486. AcDbBlockTableRecordIterator* pIter;
487. pBlkTblRcd->newIterator(pIter);
488. AcDbEntity* pEnt;
489. for(pIter->start();!pIter->done();pIter->step()){
491. pIter->getEntity(pEnt,AcDb::kForWrite);
492. if(pEnt->layerId() == layerId){
495. /*AcDbLine* pLine = AcDbLine::cast(pEnt);
496. if(pLine != NULL){*/
498. pEnt->setColorIndex(1);
499. //}
500. }
501. pEnt->close();
502. }
505. delete pIter;
506. pBlkTblRcd->close();
507. }

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