Precision Image Digitizer (PID) is a program for tracing and recording the coordinates of selected points in a graphics image file. It can read in a JPG, GIF, or BMP file and you can then use your mouse to point and click on the points in the image that you would like to record. The coordinates are displayed on the screen as you click them and they can then be exported to an ASCII text file, exported to an AutoCad DXF file, or printed. These files can then be imported into any other program capable of reading in text files or DXF files. You can also use the Windows clipboard to copy and paste images into and out of the program. The point coordinates are measured in pixels from the zero location (0, 0) at the lower left of the image. The horizontal axis is X, the vertical axis is Y. You can assign a scale factor to the coordinates so the numbers on the bottom of the screen are displayed in real units such as inches. Setting the scale factor is very easy. Just click on two points on the image where you know the distance between the points.
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