polygon

Algorithm: Polygon max element in O(log n)

Algorithm: Polygon max element in O(log n) Question: I want to find the vertice in convex polygon, which has the greatest x axis value. The polygon is convex and random. Its vertices are represented in array as tuples: (x,y). The vertices from cartesian coordinate system to array are ordered in counterclockwise order. The most left …

Total answers: 1

Python – Is there a method to calculate the signed area of a polygon?

Python – Is there a method to calculate the signed area of a polygon? Question: I have a polygon defined in a Python list with (x, y) coordinates. # for example polygon = [(0, 0), (2, 0), (2, 2), (1, 1), (0, 2)] I would like to get the signed area of this polygon. I …

Total answers: 1

Reorganize sides/edges into their appropriate polygons

Reorganize sides/edges into their appropriate polygons Question: How do I reorganize the result (list_) into their appropriate polygons? We have several polygons import geopandas as gpd import matplotlib.pyplot as plt polys = gpd.GeoSeries([Polygon([(0,0), (2,0), (2, 1.5), (2,2), (0,2)]), Polygon([(0,2), (2,2), (2,4), (0,4)]), Polygon([(2,0), (5,0), (5,1.5), (2,1.5)]), Polygon([(3,3), (5,3), (5,5), (3,5)])]) fp = gpd.GeoDataFrame({‘geometry’: polys, ‘name’: …

Total answers: 1

Highlight polygons that share a side/edge

Highlight polygons that share a side/edge Question: How do I create a… —I don’t know; list, dict of all the polygons, in a GeoDataFrame, that share a side/edge. The polygons will intersect but never cross. import geopandas as gpd from shapely.geometry import Polygon import matplotlib.pyplot as plt polys = gpd.GeoSeries([Polygon([(0,0), (2,0), (2, 1.5), (2,2), (0,2)]), …

Total answers: 3

Finding the centroid of an polygon in Python

Finding the centroid of a polygon in Python Question: I want to calculate the centroid of a figure formed by the points: (0,0), (70,0), (70,25), (45, 45), (45, 180), (95, 188), (95, 200), (-25, 200), (-25,188), (25,180), (25,45), (0, 25), (0,0). I know that the correct result for the centroid of this polygon is x …

Total answers: 4

Swap trade in Uniswap fails using uniswap-python standard functions

Swap trade in Uniswap fails using uniswap-python standard functions Question: I am trying to do a simple trade using uniswap-python and it doesn’t work. Sample code: from uniswap import Uniswap provider = "https://polygon-mainnet.infura.io/v3/"+INFURA_API_KEY uniswap = Uniswap(address, private_key, version = 3, provider) result = uniswap.make_trade(USDT, WMATIC, 10) Result: raise ExtraDataLengthError(web3.exceptions.ExtraDataLengthError: The field extraData is 97 bytes, …

Total answers: 1

How to create polygon from bbox data in python?

How to create polygon from bbox data in python? Question: I have created a code in R which extracts bbox from a list of points and then creates a polygon using st_as_sfc. Now I am trying to do the same in python where I was able to get the bbox coordinates from the list of …

Total answers: 2

Making an Array of Polygon "handles" in Python

Making an Array of Polygon "handles" in Python Question: I am making animations with large numbers of filled polygons. I am currently defining each polygon by copying the vertices from a standard profile shape, transforming each of the points into the proper location on the figure, then using a plt.fill operation to create the polygon, …

Total answers: 1

Draw polygon in polygons (regular polygons)

Draw polygon in polygons (regular polygons) Question: This is my code that draws regular polygons: import turtle tr = turtle.Turtle() tr.lt(150) for x in range(3,13): for i in range(x): tr.fd(80) tr.lt(360//x) turtle.done() This is my output: But my expected output is: Can you help me? Asked By: Roham || Source Answers: As already pointed in …

Total answers: 2