query-curve 0.1.0

A query utility meant to query along a cubic bezier curve. Generate accompanying curve at https://querycurve.com

QueryCurve

This tool allows you to invoke queries against a curve you've laid out at https://querycurve.com

Once you have a curve in the shape you'd like:

You'll get a resulting encoded curve that'll look like this: 2BLnMW-2BLnMW--KyjA--KyjA-0-KyjA-CaR6-XZAG-KyjA-TN1E-KyjA-KyjA-KyjA-CaR6-TN1E-8OI4-fxSK-KyjA

Time to query!

Installation from PyPi

$ pip install query-curve

Usage

from query_curve import query_encoded_curve

Querying with a dynamically loaded curve

If you are pulling your curve from a db or otherwise need it to be dynamic:

dynamically_loaded_curve = 'fxSK-fxSK-0-0-0-0-KyjA-0-KyjA-fxSK-fxSK-fxSK' # assume this was loaded from db
my_x_value = 0.35

# Gets the corresponding y value along the curve for a given x
result = query_encoded_curve(dynamically_loaded_curve, my_x_value)

Note: While decoding the curve is fast, repeatedly querying against the same curve can be optimized by preloading the curve. If you anticipate multiple queries against the same curve, consider using:

Querying with a preloaded or reused curve

If the curve you're using will be used to facilitate multiple queries, this alternative for querying will bypass the need to decode the curve on every query.

from query_curve import get_encoded_curve_query_function
fixed_curve = 'fxSK-fxSK-0-0-0-0-KyjA-0-KyjA-fxSK-fxSK-fxSK'
# Returns a function with a reference to the decoded curve
query_my_curve = get_encoded_curve_query_function(fixed_curve) 

query_my_curve(0)
query_my_curve(0.5)
query_my_curve(0.37)