These functions display computed images, maps and tables. The editable cells perform image processing, geometry calculations, acquisition and file operations.

import json, io, base64
import numpy as np
from PIL import Image, ImageDraw
RESULTS = []
def show_image(image, title=''):
    if isinstance(image, np.ndarray): image = Image.fromarray(image)
    buffer = io.BytesIO(); image.save(buffer,format='PNG')
    RESULTS.append({'kind':'image','title':title,'src':'data:image/png;base64,'+base64.b64encode(buffer.getvalue()).decode()})
def show_table(rows, title=''):
    RESULTS.append({'kind':'table','title':title,'rows':rows})
def show_summary(title, facts, explanation=''):
    RESULTS.append({'kind':'summary','title':title,'facts':facts,'explanation':explanation})
def keep_file(path):
    RESULTS.append({'kind':'file','name':path.rsplit('/',1)[-1],'data':base64.b64encode(open(path,'rb').read()).decode()})
def show_map(routes,samples,building,title='',camera=None,linked_id=None):
    area=building.buffer(buffer_m)
    if camera is not None: area=area.union(camera.buffer(15))
    bounds=area.bounds
    x0,y0,x1,y1=bounds; scale=610/max(x1-x0,y1-y0)
    def xy(x,y):return (45+(x-x0)*scale,655-(y-y0)*scale)
    im=Image.new('RGB',(720,720),'#faf9fc');d=ImageDraw.Draw(im)
    for route in routes:d.line([xy(x,y) for x,y in route['geometry'].coords],fill='#aaa4b1',width=2)
    d.polygon([xy(x,y) for x,y in building.exterior.coords],fill='#e5d7b0',outline='#8c7749')
    for p in samples:
        x,y=xy(p['geometry'].x,p['geometry'].y);d.ellipse((x-2,y-2,x+2,y+2),fill='#4b2e83')
    if camera is not None:
        cx,cy=xy(camera.x,camera.y)
        matched=next((p for p in samples if p['sample_id']==linked_id),None)
        if matched:
            mx,my=xy(matched['geometry'].x,matched['geometry'].y)
            d.line([(cx,cy),(mx,my)],fill='#197148',width=3)
            d.ellipse((mx-7,my-7,mx+7,my+7),outline='#197148',width=3)
        d.ellipse((cx-7,cy-7,cx+7,cy+7),fill='#d65c12',outline='#fff',width=2)
        d.text((cx+11,cy-10),'Camera (source)',fill='#9b400b')
    d.text((30,15),f'Suzzallo | {len(samples)} planned points | spacing={spacing_m:g} m',fill='#312744')
    d.text((660,30),'N ^',fill='black');d.line([(45,680),(45+50*scale,680)],fill='black',width=3)
    d.text((45,688),'50 m',fill='black')
    d.text((350,688),'OSM contributors | ODbL 1.0',fill='#5b5364')
    show_image(im,title)