java读取CAD（dxf）文件（获取layer，block，entity）

2023-08-26 00:20| 来源: 网络整理| 查看: 265

首先需要引入kabeja这个包

个人理解：DXF图纸是由一张张图层(DXFLayer)组成的，一张张图层又是由一个个实体类(DXFEntity)组成的，至于块（DXFBlock）呢，我理解的他就是一个模板，也是由一个个的实体类组成，而图层中的实体类有可能就是通过模型插入的，而通过块所插入的实体类的类型就是DXFInsert（该类是DXFEntity的子类），具体可看上面链接的api。

直接上代码：

package parse; import java.awt.Polygon; import java.io.File; import java.io.FileInputStream; import java.util.Collections; import java.util.HashSet; import java.util.List; import java.util.ArrayList; import java.util.Set; import java.util.Iterator; import java.util.Properties; import org.kabeja.dxf.DXFConstants; import org.kabeja.dxf.DXFDocument; import org.kabeja.dxf.DXFEntity; import org.kabeja.dxf.DXFLWPolyline; import org.kabeja.dxf.DXFLayer; import org.kabeja.dxf.DXFLine; import org.kabeja.dxf.DXFMText; import org.kabeja.dxf.DXFVertex; import org.kabeja.dxf.helpers.Point; import org.kabeja.parser.DXFParser; import org.kabeja.parser.Parser; import org.kabeja.parser.ParserBuilder; import org.kabeja.dxf.DXFBlock; import org.kabeja.dxf.DXFLineType; import org.kabeja.dxf.DXFDimensionStyle; import org.kabeja.dxf.objects.DXFObject; import org.kabeja.dxf.DXFStyle; import org.kabeja.dxf.DXFView; import org.kabeja.dxf.DXFViewport; import org.kabeja.dxf.DXFVariable; import org.kabeja.dxf.objects.DXFDictionary; import org.kabeja.dxf.DXFHatchPattern; import org.kabeja.dxf.DXFInsert; import org.kabeja.dxf.DXFLeader; import org.kabeja.dxf.Bounds; public class DXFUtil { public static void main(String[] args) throws Exception{ Parser dxfParser = ParserBuilder.createDefaultParser(); dxfParser.parse(new FileInputStream("C:/Users/Administrator/Desktop/CAD_/28F平面图-0819.dxf"), "UTF-8"); DXFDocument doc = dxfParser.getDocument(); // getDXFViewports(doc); // while(doc.getDXFHeader().getVarialbeIterator().hasNext()){ // DXFVariable dv = (DXFVariable)doc.getDXFHeader().getVarialbeIterator().next(); // System.out.println(dv.getName()); // } // getDXFBlocks(doc); // getDXFLineTypes(doc); // getDXFStyles(doc); // getDXFViews(doc); getDXFLayers(doc); // getRootDXFDictionarys(doc); // getDXFHatchPatternIterators(doc); // for(DXFBlock d : dxfBlocks){ // System.out.println(d.getName()); // System.out.println(d.getLayerID()); // } } //块列表获取所有的的块（block） public static List getDXFBlocks(DXFDocument dxfdoc){ List dxfBlocks = new ArrayList(); Iterator iter = dxfdoc.getDXFBlockIterator(); while(iter.hasNext()){ DXFBlock dXFBlock = (DXFBlock)iter.next(); // System.out.println("LayerID: "+dXFBlock.getLayerID()+" Name: "+dXFBlock.getName()+" description: "+dXFBlock.getDescription()+" document: "+dXFBlock.getDXFDocument()+" Ponit: "+dXFBlock.getReferencePoint()); // System.out.println("LayerID: "+dXFBlock.getLayerID()+" Name: "+dXFBlock.getName()+" description: "+dXFBlock.getDescription()+" Ponit: "+dXFBlock.getReferencePoint()+" Buonds: "+dXFBlock.getBounds()); Bounds b = dXFBlock.getBounds(); System.out.println(" Name: "+dXFBlock.getName()+" depth: "+b.getDepth()+" width: "+b.getWidth()+" height: "+b.getHeight()+" "+b.getMaximumX()+","+b.getMaximumY()+","+b.getMaximumZ()+" "+b.getMinimumX()+","+b.getMinimumY()+","+b.getMinimumZ()); // List l = getEntityByDXFBlock(dXFBlock); // for(DXFEntity d : l){ // System.out.println("ID: "+d.getID()+" Flags: "+d.getFlags()+" TYPE: "+d.getType()); // } // System.out.println(l.size()); // getLines(dxfdoc,dXFBlock.getLayerID()); // while(dXFBlock.getDXFEntitiesIterator().hasNext()){ // DXFEntity d = (DXFEntity)dXFBlock.getDXFEntitiesIterator().next(); // if(d.isVisibile()){ // System.out.println("Type: "+d.getType()+" ID: "+d.getID()+" LayerName: "+d.getLayerName()); // } // } dxfBlocks.add(dXFBlock); } return dxfBlocks; } //获取所有的entity public static List getDXFEntities(DXFDocument dxfdoc){ List list = new ArrayList(); Iterator iter = dxfdoc.getDXFLayerIterator(); while(iter.hasNext()){ DXFLayer dXFLayer = (DXFLayer)iter.next(); List l = getDXFEntityTypes(dXFLayer); for(String s : l){ List ld = dXFLayer.getDXFEntities(s); for(DXFEntity d : ld){ list.add(d); System.out.println("ID: "+d.getID()+" Boolean:"+d.isBlockEntity()); } } } return list; } //根据图层名称获取entity public static List getDXFEntitiesByLayerName(DXFDocument dxfdoc,String layerName){ List list = new ArrayList(); Iterator iter = dxfdoc.getDXFLayerIterator(); while(iter.hasNext()){ DXFLayer dXFLayer = (DXFLayer)iter.next(); if(dXFLayer.getName().equals(layerName)){ List l = getDXFEntityTypes(dXFLayer); for(String s : l){ List ld = dXFLayer.getDXFEntities(s); for(DXFEntity d : ld){ list.add(d); System.out.println("ID: "+d.getID()+" Boolean:"+d.isBlockEntity()); } } } } return list; } //图层列表获取所有图层（layer） public static List getDXFLayers(DXFDocument dxfdoc){ List dXFLayers = new ArrayList(); Iterator iter = dxfdoc.getDXFLayerIterator(); while(iter.hasNext()){ DXFLayer dXFLayer = (DXFLayer)iter.next(); // System.out.println("LayerName: "+dXFLayer.getName()); // if(dXFLayer.isVisible() && dXFLayer.getName().equals("I-FURN")){ if(dXFLayer.getName().equals("I-ROOM-NUB")){ List list = getDXFEntityTypes(dXFLayer); for(String s : list){ System.out.println(s); // List l = dXFLayer.getDXFEntities(s); // for(DXFEntity d : l){ // System.out.println("ID: "+d.getID()+" Boolean:"+d.isBlockEntity()); // } // System.out.println(s); // if(s.equals("INSERT")){ // List l = dXFLayer.getDXFEntities(s); // for(DXFEntity d : l){ // DXFInsert i = (DXFInsert)d; // System.out.println("BlockID: "+i.getBlockID()); // } // } if(s.equals("LEADER")){ List l = dXFLayer.getDXFEntities(s); for(DXFEntity d : l){ DXFLeader i = (DXFLeader)d; int a = i.getCoordinateCount(); for(int k=0;k List inserts = new ArrayList(); Iterator iter = dxfdoc.getDXFLayerIterator(); while(iter.hasNext()){ DXFLayer dXFLayer = (DXFLayer)iter.next(); System.out.println("LayerName: "+dXFLayer.getName()); if(dXFLayer.isVisible()){ List list = getDXFEntityTypes(dXFLayer); for(String s : list){ // System.out.println(s); if(s.equals("INSERT")){ List l = dXFLayer.getDXFEntities(s); for(DXFEntity d : l){ DXFInsert i = (DXFInsert)d; // System.out.println("ID: "+d.getID()+" Boolean:"+d.isBlockEntity()); System.out.println("BlockID: "+i.getBlockID()); if(blockName.equals(i.getBlockID())){ inserts.add(i); } } } } } } return inserts; } //通过DXFBlock获取entity public static List getEntityByDXFBlock(DXFBlock dXFBlock){ List list = new ArrayList(); Iterator iter = dXFBlock.getDXFEntitiesIterator(); while(iter.hasNext()){ DXFEntity d = (DXFEntity)iter.next(); // if(d.isVisibile()){ // list.add(d); // } list.add(d); } return list; } //通过图层获取DXFEntityType public static List getDXFEntityTypes(DXFLayer dXFLayer){ List list = new ArrayList(); Iterator iter = dXFLayer.getDXFEntityTypeIterator(); while(iter.hasNext()){ String d = (String)iter.next(); list.add(d); // System.out.println(d); } return list; } //getDXFLineTypeIterator() 线型 public static List getDXFLineTypes(DXFDocument dxfdoc){ List dXFLineTypes = new ArrayList(); Iterator iter = dxfdoc.getDXFLineTypeIterator(); while(iter.hasNext()){ DXFLineType dXFLineType = (DXFLineType)iter.next(); System.out.println("LineTypeName: "+dXFLineType.getName()+" Scale: "+dXFLineType.getScale()+" Description: "+dXFLineType.getDescritpion()); dXFLineTypes.add(dXFLineType); } return dXFLineTypes; } //getDXFStyleIterator() public static List getDXFStyles(DXFDocument dxfdoc){ List dXFStyles = new ArrayList(); Iterator iter = dxfdoc.getDXFStyleIterator(); while(iter.hasNext()){ DXFStyle dXFStyle = (DXFStyle)iter.next(); System.out.println("FontFile: "+dXFStyle.getFontFile()+" Name: "+dXFStyle.getName()); dXFStyles.add(dXFStyle); } return dXFStyles; } //getDXFViewIterator() public static List getDXFViews(DXFDocument dxfdoc){ List dXFViews = new ArrayList(); Iterator iter = dxfdoc.getDXFViewIterator(); while(iter.hasNext()){ DXFView dXFView = (DXFView)iter.next(); System.out.println("centerPoint: "+dXFView.getCenterPoint()+" Name: "+dXFView.getName()+" Vector: "+dXFView.getViewDirection()); dXFViews.add(dXFView); } return dXFViews; } // getDXFViewportIterator() public static List getDXFViewports(DXFDocument dxfdoc){ List dXFViewports = new ArrayList(); Iterator iter = dxfdoc.getDXFViewportIterator(); while(iter.hasNext()){ DXFViewport dXFViewport = (DXFViewport)iter.next(); System.out.println("CenterPoint: "+dXFViewport.getCenterPoint()+" PlotStyleName: "+dXFViewport.getPlotStyleName()+" VIewPointID: "+dXFViewport.getViewportID()+" VectorX: "+dXFViewport.getViewDirectionVector().getX()+" VectorY: "+dXFViewport.getViewDirectionVector().getY()+" VectorZ: "+dXFViewport.getViewDirectionVector().getZ()); dXFViewports.add(dXFViewport); } return dXFViewports; } //getRootDXFDictionary() public static void getRootDXFDictionarys(DXFDocument dxfdoc){ DXFDictionary d = dxfdoc.getRootDXFDictionary(); Iterator iter = d.getDXFObjectIterator(); while(iter.hasNext()){ System.out.println(iter.next()); } } //获取线 public static void getLines(DXFDocument dxfdoc,String layerID){ DXFLayer layer = dxfdoc.getDXFLayer(layerID); //get all polylines from the layer List plines = layer.getDXFEntities(DXFConstants.ENTITY_TYPE_LINE); //work with the first polyline DXFLine pline = (DXFLine) plines.get(0); System.out.println("start: "+pline.getStartPoint()+" end: "+pline.getEndPoint()); //使用polyline对象种特有的方法获得数据，如左获得该多边线总共的顶点数据 } // getDXFHatchPatternIterator() public static void getDXFHatchPatternIterators(DXFDocument doc){ Iterator iter = doc.getDXFHatchPatternIterator(); while(iter.hasNext()){ DXFHatchPattern d = (DXFHatchPattern)iter.next(); System.out.println("ID: "+d.getID()+" DXFHatch: "+d.getDXFHatch()+" Count: "+d.getLineFamilyCount()); } } // //通过DXFDocument根据Id获取所有的DXFEntity // public static List getDXFEntitiesByDXFDocument(List l){ // List list = new ArrayList(); // // return list; // } }

有问题可以在下面评论，咱们一块讨论

【本文地址】

公司简介

联系我们