how to calculate X and Y axis

[sandokan]

just I need an automatic X and Y axis calculation algorithm that I want to use for my ZX Spectrum. Any help?

[BigBlue]

Calculating the X and Y axis is easy. You need to collect the data and start the calculation from the collected data. See the attached algorithm.

Calculating the X and Y axis

axis_drw.jpg (37.49 KiB) Viewed 3603 times

[Iris]

don't forget axis positioning. it is common to have the y-axis on the left and the x-axis on the bottom. However, this only applies if the data is in the 1st quadrant. For example, if the data is in the 3rd quadrant (X<0 and Y<0), then the Y-axis should be on the right side and the X-axis should be on top.

graph quadrants and axis

graph.jpg (26.12 KiB) Viewed 3595 times

[Jeremy]

I did a software for 4D display simulating HP plotter. It creates an X and Y axis from data set.

Harlequin is HP plotter simulator

4Dgraph.jpg (62.13 KiB) Viewed 2805 times