PLT格式的详细说明；包含如何画线，如何画圆，如何填充等-A detailed descr iption of the PLT format contains information about how to draw the line, how to draw a circle, how to fill

CAD Import VCL is a set of powerful classes that can be used in applications that give users ability to view and operate with DWG/DXF/DWF/HPGL/HPGL2/SVG/CGM files. CAD Import VCL provides an API for using AutoCAD® DWG™ /DXF™ , Auto

HPGL指令详解,惠普绘图仪指令，PLT文件格式说明-Detailed instructions HPGL, HP plotter instructions, PLT file format