[Enhancement]: clamp (ceil) graph values to first unit

[dicktyr]

please consider implementing an option to force rounding up of minimal values which otherwise fall below the threshold of visibility in a given graph i.e. values between zero and the first visible unit

for example network graphs can be troublesome as their values span such a large range causing small values to go by without being displayed (logarithmic scaling is not satisfactory for some cases)

this feature is especially useful for small graphs such as those in a menu bar or status panel/strip to be sure that even small values will be displayed

in consideration of high resolution displays perhaps the option should specify a number of pixels (as a single pixel may still be nearly invisible)

e.g. a option value of 4 would cause any graph value between zero and the normal threshold to paint the first 4 pixels (default option value: 1 pixel)

[github-actions[bot]]

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[dicktyr]

still relevant

[prrajput1199]

can I work on this issue?

[harshit110927]

I want to work on this issue.

[Caellian]

@prrajput1199 and @harshit110927, are you still interested in implementing this feature?

[Caellian]

This should be pretty straightforward to implement. Graph drawing code is in conky.cc:1282.

Be sure to document the changes.