write C# or C/C++ program to convert ascii file to DXF or GDS

Open file dialog for source file Destination file is same but extension .dxf is appended Read (xc, yc, W, L, theta) data from an ascii file (xc, yc) are rectangle center in mm (W, L) are width and length in mm theta is CCW rotation in degrees e.g. this draws "S4" in crude rectangle font. -0.187883 0.071279 0.001500 0.010605 45.000000 -0.180383 0.071279 0.010605 0.001500 45.000000 -0.187883 0.093779 0.010605 0.001500 45.000000 -0.180383 0.093779 0.001500 0.010605 45.000000 -0.184133 0.082529 0.001500 0.021210 45.000000 -0.161633 0.082529 0.015000 0.001500 0.000000 -0.169133 0.090029 0.001500 0.015000 0.000000 -0.154133 0.082529 0.001500 0.030000 0.000000 Write a valid DXF file that can be read by autocad, solidworks, or the free DXF viewer (which I will use to test). Ultimate goal is import to GDSII, so the DXF step can be skipped. File is a single layer