Tri-Pixel Plotter

Tri-pixel plotter





Kenneth Baker,


Bitterne,


Southampton.





This short routine will allow you to plot several pixels at


the same time, giving the effect of a thick line.


The technique used is to plot normally, save the posi-


tion, then plot the positions on either side of the


original in both the x and y dimensions, before restoring


the original position for the next move.


It is especially useful for distinguishing between two


plotted routines, as the exanmple sine wave program will


illustrate - where one curve is plotted normally, and the


other using this routine.


There are only 53 bytes in the routine, which can be


entered at any convenient place in memory; and lines 13 and


14 of the Loader program and line 70 of the sample program


can be changed accordingly.