Unless I am misunderstanding how modifying shapes change the RelayoutData dictionary, I think I’m having an issue: Some of the examples on the annotations page are no longer working (example, drawing a ROI and displaying the histogram: Image Annotations | Dash for Python Documentation | Plotly ). I’m…

Embarrassingly, I may have solved the example issue (updating the histogram from ROI) as soon as I checked my post. In the example code, the rectangle must be drawn starting from one point and dragging to higher pixel values… I have a habit of drawing rectangle from bottom to top and that doesn’t wo…

Hey @richardbriggs not sure if that is related, but we have an other using mentioning a difference in the returned values depending on the plotly version: [image] Changed behaviour in dash 2.18.2 using numpy 1.26.4 when reading figure into callback on linux Dash Python N…

Hi @richardbriggs Can you please share a minimal reproducible example so we can reproduce the error locally?

Hi @adamschroeder , the final example on annotations page demonstrates this (the data.chelsea() cat image). If you create a rectangle and then modify the rectangle, the parsed RelayoutData dictionaries change in the way I described. I’m wondering w import plotly.express as px from dash import Dash,…

Issue with annotations example and relayoutData when modifying existing shape

Dash Python

AIMPED March 11, 2025, 10:07am 3

Hey @richardbriggs not sure if that is related, but we have an other using mentioning a difference in the returned values depending on the plotly version:

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Issue with annotations example and relayoutData when modifying existing shape

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