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G6EJD / ESP32-e-Paper-Weather-Display

An ESP32 and 2.9", 4.2" or 7.5" ePaper Display reads Weather Underground data via their API and then displays the weather
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Add RHS y-axis functionality to DrawGraph(). Implement for precipitation forecast #202

Closed jpolton closed 9 months ago

jpolton commented 1 year ago
  1. Add RHS y-axis labels option to Drawgraph().
    1. Plot prob of precip (pop) on precip forecast graph

The idea is to add an extra input to DrawGraph(), which specifies whether the y-axis in on the RHS or LHS of the plot. (This variable is a boolean whereby True --> LHS axis and False --> RHS axis)

This is used to display probability of precipitation as a line plot on top of the precipitation bar chart.

(Presently only implemented in Waveshare_7_5_T7.ino, will look at copying to other 7 inch displays. Hence draft PR)

Edit: Realised that I can not test the port to other display sizes as I only have access to the 7.5" 800x480 E-Paper Layout. Hence only propose edits for Waveshare_7_5_T7.ino and will not propose edits for other screen sizes.

image Lefthand y-axis: mm. Righthand y-axis: % probability of precipitation.

jpolton commented 9 months ago

Moved the PR to a new branch: feature/plot-axis-rhs