读取，写入CAD文件[dwg,dxf]的程序实现案例

AcDbBlockTableRecord(47) BlockBeginId Invalid Created AcDbBlockTableRecord(47) BlockEndId Invalid Created AcDbBlockTableRecord(231) BlockBeginId Invalid Created AcDbBlockTableRecord(231) BlockEndId Invalid Created AcDb2dPolyline(74) Entry object SEQEND Invalid Created AcDb2dPolyline(79) Entry object SEQEND Invalid Created AcDb2dPolyline(7E) Entry object SEQEND Invalid Created AcDb2dPolyline(83) Entry object SEQEND Invalid Created AcDb2dPolyline(88) Entry object SEQEND Invalid Created AcDb2dPolyline(8D) Entry object SEQEND Invalid Created AcDb2dPolyline(92) Entry object SEQEND Invalid Created AcDb2dPolyline(97) Entry object SEQEND Invalid Created AcDb2dPolyline(9C) Entry object SEQEND Invalid Created AcDb2dPolyline(A1) Entry object SEQEND Invalid Created AcDb2dPolyline(A6) Entry object SEQEND Invalid Created AcDb2dPolyline(AB) Entry object SEQEND Invalid Created AcDb2dPolyline(B0) Entry object SEQEND Invalid Created AcDb2dPolyline(B5) Entry object SEQEND Invalid Created AcDb2dPolyline(BA) Entry object SEQEND Invalid Created AcDb2dPolyline(BF) Entry object SEQEND Invalid Created AcDb2dPolyline(C4) Entry object SEQEND Invalid Created AcDb2dPolyline(C9) Entry object SEQEND Invalid Created AcDb2dPolyline(CE) Entry object SEQEND Invalid Created AcDb2dPolyline(D3) Entry object SEQEND Invalid Created AcDb2dPolyline(D8) Entry object SEQEND Invalid Created AcDb2dPolyline(DD) Entry object SEQEND Invalid Created AcDb2dPolyline(E2) Entry object SEQEND Invalid Created AcDb2dPolyline(E7) Entry object SEQEND Invalid Created AcDb2dPolyline(EC) Entry object SEQEND Invalid Created AcDb2dPolyline(F1) Entry object SEQEND Invalid Created AcDb2dPolyline(F6) Entry object SEQEND Invalid Created AcDb2dPolyline(FB) Entry object SEQEND Invalid Created AcDb2dPolyline(100) Entry object SEQEND Invalid Created AcDb2dPolyline(105) Entry object SEQEND Invalid Created AcDb2dPolyline(10A) Entry object SEQEND Invalid Created AcDb2dPolyline(10F) Entry object SEQEND Invalid Created AcDb2dPolyline(114) Entry object SEQEND Invalid Created AcDb2dPolyline(119) Entry object SEQEND Invalid Created AcDb2dPolyline(11E) Entry object SEQEND Invalid Created AcDb2dPolyline(123) Entry object SEQEND Invalid Created AcDb2dPolyline(128) Entry object SEQEND Invalid Created AcDb2dPolyline(12D) Entry object SEQEND Invalid Created AcDb2dPolyline(132) Entry object SEQEND Invalid Created AcDb2dPolyline(137) Entry object SEQEND Invalid Created AcDb2dPolyline(13C) Entry object SEQEND Invalid Created AcDb2dPolyline(141) Entry object SEQEND Invalid Created AcDb2dPolyline(146) Entry object SEQEND Invalid Created AcDb2dPolyline(14B) Entry object SEQEND Invalid Created AcDb2dPolyline(150) Entry object SEQEND Invalid Created AcDb2dPolyline(155) Entry object SEQEND Invalid Created AcDb2dPolyline(15A) Entry object SEQEND Invalid Created AcDb2dPolyline(15F) Entry object SEQEND Invalid Created AcDb2dPolyline(164) Entry object SEQEND Invalid Created AcDb2dPolyline(169) Entry object SEQEND Invalid Created AcDb2dPolyline(16E) Entry object SEQEND Invalid Created AcDb2dPolyline(173) Entry object SEQEND Invalid Created AcDb2dPolyline(178) Entry object SEQEND Invalid Created AcDb2dPolyline(17D) Entry object SEQEND Invalid Created AcDb2dPolyline(182) Entry object SEQEND Invalid Created AcDb2dPolyline(187) Entry object SEQEND Invalid Created AcDb2dPolyline(18C) Entry object SEQEND Invalid Created AcDb2dPolyline(191) Entry object SEQEND Invalid Created AcDbLine(19C) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(19C) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(19D) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(19D) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(19E) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(19E) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(19F) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(19F) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A0) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A0) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A1) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A1) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A2) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A2) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A3) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A3) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A4) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A4) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A5) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A5) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A6) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A6) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A7) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDbLine(1A7) Y coordinate - 5.93176e+291 Invalid Set to 0 AcDb2dPolyline(1AD) Entry object SEQEND Invalid Created AcDbPolyFaceMesh(1B7) Entry object SEQEND Invalid Created AcDbPolygonMesh(1C7) Entry object SEQEND Invalid Created AcDb3dPolyline(26A) Entry object SEQEND Invalid Created AcDbHatch(2E0) Associative object AcDbEllipse(2E1) missing Hatch as reactor Invalid Associativity removed AcDbHatch(2E0) Y coordinate - -2.65698e+303 Invalid Set to 0 AcDbEllipse(2E1) Y coordinate - -2.65698e+303 Invalid Set to 0 AcDbHatch(2E2) Associative object AcDbCircle(2E3) missing Hatch as reactor Invalid Associativity removed AcDbHatch(2E2) Y coordinate - -2.65698e+303 Invalid Set to 0 AcDbCircle(2E3) Y coordinate - -2.65698e+303 Invalid Set to 0 AcDbText(2E5) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2E5) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2E5) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2E5) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(2EA) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2EB) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2EB) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(2F0) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F1) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F1) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F1) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F1) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(2F6) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F7) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F7) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F7) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2F7) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(2FC) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2FD) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2FD) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2FD) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(2FD) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(302) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(303) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(304) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(304) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(304) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(304) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(309) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbPoint(30A) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(30B) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(30B) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(30B) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbText(30B) Y coordinate - 1.67562e+279 Invalid Set to 0 AcDbRay(375) Y coordinate - -2.65698e+303 Invalid Set to 0 AcDbHatch(3C9) Associative object AcDbCircle(3CA) missing Hatch as reactor Invalid Associativity removed AcDbShape(46F) Shape sty