The Java JDXF library provides support for generation of DXF files for use with CAD programs using standard Java AWT Graphics \u201cdraw\u201d and “fill” commands. The library provides a special Graphics2D subclass, DXFGraphics, that is associated with a DXF document and that renders draw commands into DXF syntax. A sequence of standard Java Graphics drawing method calls on a DXFGraphics instance will thus create a structured DXF document that, when opened with a standard CAD program, will display the Java image as a CAD design that can be modified within the CAD program.<\/p>\n
This library is released under the MIT License. The class DXFGraphics implements the graphics operations defined by the standard Java Graphics2D class. To create a DXF drawing, you use the standard Java Graphics drawing calls (including drawing, transformations, etc.) on an instance of DXFGraphics. The DXFGraphics will encode these Java drawing commands as DXF objects in an associated DXFDocument, which can then be retrieved as a text string and saved in a DXF file.<\/p>\n A DXFGraphics is associated with a DXFDocument. The basic workflow is:<\/p>\n More examples and discussion can be found on the JDXF User Guide<\/a>.<\/p>\n The JDXF library provides most of the drawing operations available in the standard Java Graphics and Graphics2D classes. However, certain methods are unimplemented at present (some due to lack of support in DXF). These unimplemented operations will be ignored or throw an UnsupportedOperationException if used, as indicated below. Some additional features currently have no or limited support, as indicated below.<\/p>\n The library provides methods for creating and drawing B-splines on the standard Java Graphics, as well as generating DXF code for splines.<\/p>\n Some example files generated with JDXF are at the links below. The Java source code used to generate these through the JDXF Library is available in the Example Code section.<\/p>\n A test project is available that illustrates how to use the library and that can also be used to test its functionality. The class JDXFTestPanel illustrates the use of the JDXFGraphics class and its draw methods.<\/p>\n The example source can be downloaded from the link below.<\/p>\n The downloads are supplied as compressed archives; the library archive contains the compiled .jar file for inclusion in a project, while the source archive contains the Java source files that can be used to rebuild the .jar file or included as source files in a referencing project. The test app source contains source for a simple test app that uses the classes in the library.<\/p>\n
\n<\/a><\/p>\nBasic Workflow<\/h2>\n
\/* Create a DXF document and get its associated DXFGraphics instance *\/\r\n\r\nDXFDocument dxfDocument = new \r\n DXFDocument(\"Example\");\r\nDXFGraphics dxfGraphics = \r\n dxfDocument.getGraphics();\r\n \r\n\r\n\/* Do drawing commands as on any other Graphics. If you have a paint(Graphics) method, you can just use it with the DXFGraphics instance since it's a subclass of Graphics. *\/\r\npaint(dxfGraphics);\r\n \r\n\/* Get the DXF output as a string - it's just text - and\u00a0 save\u00a0 in a file for use with a CAD package *\/\r\nString dxfText = dxfDocument.toDXFString();\r\nString filePath = \u201cpath\/to\/file.dxf\u201d;\r\nFileWriter fileWriter = new FileWriter(filePath);\r\nfileWriter.write(dxfText);\r\nfileWriter.flush();\r\nfileWriter.close();\r\n\r\n\r\n\/* For drawing, just use standard Java\r\n drawing operations *\/\r\npublic void paint(Graphics graphics)\r\n{\r\n \/\/ set pen characteristics\r\n graphics.setColor(Color.RED);\r\n \u00a0graphics.setStroke(new BasicStroke(3));\r\n \r\n \/\/ draw stuff - line, rectangles, ovals, ...\r\n graphics.drawLine(0, 0, 1000, 500);\r\n graphics.drawRect(1000, 500, 150, 150);\r\n graphics.drawRoundRect(20, 200, 130, 100, 20, \r\n 10);\r\n graphics.drawOval(200, 800, 200, 400);\r\n graphics.drawArc(100, 1900, 400, 200, 60, 150);\r\n\r\n \/\/ can draw filled shapes, which get \r\n \/\/ implemented as DXF hatches\r\n graphics.setColor(Color.BLUE);\r\n graphics.fillRect(100, 100, 100, 50);\r\n int[] xPoints = {200, 300, 250};\r\n int[] yPoints = {200, 250, 300};\r\n graphics.fillPolygon(xPoints, yPoints, \r\n xPoints.length);\r\n\r\n \/\/ text too\r\n graphics.setFont(new Font(Font.MONOSPACED, \r\n Font.PLAIN, 38));\r\n graphics.drawString(\"Some 38-point monospaced \r\n blue text at position 480, 400\", 480, 400);\r\n\r\n \/\/ and even transformations\r\n graphics.shear(0.1f, 0.2f);\r\n graphics.drawRect(100, 100, 200, 200);\r\n}\r\n\r\n<\/pre>\nUser Guide<\/a><\/h2>\n
Features<\/h2>\n
Supported operations<\/h3>\n
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Extensions<\/h3>\n
Not supported<\/h3>\n
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Enhancements for version 1.1<\/h2>\n
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Enhancements for version 1.2<\/h2>\n
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Enhancements for version 1.3<\/h2>\n
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Enhancements for version 1.4<\/h2>\n
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DXFDocument dxfDocument = new \r\n DXFDocument(\"Example\");\r\nDXFGraphics dxfGraphics =\r\n dxfDocument.getGraphics();\r\n\r\n\/\/ set layer - drawing goes \r\n\/\/ onto Layer 1\r\ndxfDocument.setLayer(\"Layer 1\");\r\ngraphics.drawRect(1000, 500, 150, 150);\r\n\r\n\/\/ set new layer - all subsequent drawing \r\n\/\/ goes onto Layer 2\r\ndxfDocument.setLayer(\"Layer 2\");\r\ngraphics.drawOval(1000, 500, 150, 150);<\/pre>\n
Enhancements for version 1.5<\/h2>\n
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Enhancements for version 1.6<\/h2>\n
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Enhancements for version 2.0<\/h2>\n
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Enhancements for version 2.1<\/h2>\n
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Example DXF Files<\/h2>\n
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Example Code<\/h2>\n
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Documentation<\/h2>\n
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Downloads<\/h2>\n
Current Version<\/h4>\n