plot Layer hierarchy issue

[monkeycc]

import dearpygui.dearpygui as dpg
import numpy as np
from matplotlib import cm
import time
import cv2


dpg.create_context()

with dpg.window(label="Tutorial", width=400, height=400):
    
    
    values: np.ndarray = np.random.rand(100, 100)
            
    colmap = cm.get_cmap('viridis', 256)
    lut = (colmap.colors[...,0:4]*255).astype(np.uint8)
    rescaled = ((values.astype(float) - values.min())*255/(values.max() - values.min())).astype(np.uint8)
    result = np.ones((*rescaled.shape,4), dtype=np.uint8)
    np.take(lut, rescaled, axis=0, out=result)
    result = result.flatten()/255
    
    with dpg.group(horizontal=True):
        with dpg.texture_registry(show=False):
            dpg.add_raw_texture(width=100, height=100, default_value=np.asarray(result, dtype=np.float32), tag=f"texture_tag", format=dpg.mvFormat_Float_rgba)

        with dpg.plot(label="title", height=-1, width=-1, crosshairs=True, anti_aliased =False, delay_search=True, tag=f"_plot_with"):
            dpg.add_plot_axis(dpg.mvXAxis)


            with dpg.plot_axis(dpg.mvYAxis):
                dpg.add_image_series("texture_tag", [0, 0], [800,800]  )
                
            dpg.add_drag_rect(default_value=(-100, -100, 500, 500),) 



dpg.create_viewport(title='Custom Title', width=800, height=600)
dpg.setup_dearpygui()
dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()

I want to adjust the rectangle to the topmost level
add_drag_rect

[v-ein]

Same as #1820.

[monkeycc]

unhappily
This issue has been present since 2022
Unresolved
It seems to be relatively low-level code
Do I need to consult imgui?

[v-ein]

Do I need to consult imgui?

This is purely a DPG issue, neither ImGui nor ImPlot communities can help. It will eventually get fixed - I have some ideas, but I can't really promise anything. Anyway, this will take time. Can easily be half a year or a year.

[v-ein]

What you can probably do at the moment is overlay two plots (specify pos=(x, y) on both of them), add drag rect to the foreground plot (the one that gets created later) and draw the image series on the background plot (created earlier). Then, when the user pans or zooms the foreground plot, sync the position of the background plot with it. Needless to say that the background color (mvPlotCol_PlotBg) on the foreground plot needs to be kept transparent (AFAIK it's transparent by default).

[monkeycc]

Thank you for your suggestions and ideas
I will try

[monkeycc]

bandicam.2024-12-25.20-00-50-608.mp4

unfortunately
The effect is not good
I will take some time to study and take a look

See if there are any ideas

[monkeycc]

Implot will not be updated for one year

Can I skip using implot
To achieve this effect

Is there a similar image module
Can achieve image enlargement and reduction
？

[v-ein]

You can use draw_image without add_plot, but you'll have to handle all mouse clicks and movements on your own.

As for ImPlot-based solution, exactly what doesn't work for you? Let's see if there's a workaround or a tiny fix that can solve your issue.

[monkeycc]

dpg.plot
Layer not supported

dpg.drawlist
dpg.draw_layer
dpg.add_drag_rect

unfortunately
Attempt to solve the problem with layers , But it was found that it is not supported