mirror of https://github.com/lalbornoz/roar.git
39 lines
1.5 KiB
Python
Executable File
39 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
#
|
|
# OperatorRotate.py
|
|
# Copyright (c) 2018, 2019 Lucio Andrés Illanes Albornoz <lucio@lucioillanes.de>
|
|
#
|
|
|
|
from Operator import Operator
|
|
import math
|
|
|
|
class OperatorRotate(Operator):
|
|
name = "Rotate"
|
|
|
|
#
|
|
# apply2(self, mapPoint, mousePoint, regionOld, region)
|
|
def apply2(self, mapPoint, mousePoint, regionOld, region):
|
|
if self.originPoint == None:
|
|
self.originPoint = list(mousePoint)
|
|
delta = [b - a for a, b in zip(self.originPoint, mousePoint)]
|
|
radius = math.sqrt(math.pow(delta[0], 2) + math.pow(delta[1], 2))
|
|
if radius >= 10:
|
|
regionSize = (len(region[0]), len(region))
|
|
theta = math.atan2(-delta[1], delta[0]); cos, sin = math.cos(theta), math.sin(theta);
|
|
for numCol in range(regionSize[0]):
|
|
for numRow in range(regionSize[1]):
|
|
numRow_, numCol_ = (numRow / regionSize[1]) * 2 - 1, (numCol / regionSize[0]) * 2 - 1
|
|
b, a = (numCol_ * sin) + (numRow_ * cos), (numCol_ * cos) - (numRow_ * sin)
|
|
numRow_, numCol_ = int((b + 1) / 2 * regionSize[1]), int((a + 1) / 2 * regionSize[0])
|
|
if (numRow_ < regionSize[1]) and (numCol_ < regionSize[0]):
|
|
region[numRow][numCol] = list(regionOld[numRow_][numCol_])
|
|
return region
|
|
else:
|
|
return region
|
|
|
|
# __init__(self, *args): initialisation method
|
|
def __init__(self, *args):
|
|
self.originPoint = None
|
|
|
|
# vim:expandtab foldmethod=marker sw=4 ts=4 tw=120
|