Making Rulers and Grids in Postscript…
Recently I described a very simple technique of how one can calibrate their printer for accuracy when printing out postscript coded documents. Therefore, after one has fully calibrated their printer, accurate rulers and grids can be made pretty easily. There are a many reasons why someone would want to have printable rulers and grids: You …
Printer Calibration…
To start we should define calibration; from wikipedia: Calibration is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy. Such a standard could be another measurement device of known accuracy, a device generating the quantity to be measured such as a voltage, a sound tone, …