gotosocial/vendor/github.com/golang/geo/s2/util.go
Tobi Smethurst 98263a7de6
Grand test fixup (#138)
* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig
2021-08-12 21:03:24 +02:00

125 lines
2.6 KiB
Go

// Copyright 2017 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package s2
import "github.com/golang/geo/s1"
// roundAngle returns the value rounded to nearest as an int32.
// This does not match C++ exactly for the case of x.5.
func roundAngle(val s1.Angle) int32 {
if val < 0 {
return int32(val - 0.5)
}
return int32(val + 0.5)
}
// minAngle returns the smallest of the given values.
func minAngle(x s1.Angle, others ...s1.Angle) s1.Angle {
min := x
for _, y := range others {
if y < min {
min = y
}
}
return min
}
// maxAngle returns the largest of the given values.
func maxAngle(x s1.Angle, others ...s1.Angle) s1.Angle {
max := x
for _, y := range others {
if y > max {
max = y
}
}
return max
}
// minChordAngle returns the smallest of the given values.
func minChordAngle(x s1.ChordAngle, others ...s1.ChordAngle) s1.ChordAngle {
min := x
for _, y := range others {
if y < min {
min = y
}
}
return min
}
// maxChordAngle returns the largest of the given values.
func maxChordAngle(x s1.ChordAngle, others ...s1.ChordAngle) s1.ChordAngle {
max := x
for _, y := range others {
if y > max {
max = y
}
}
return max
}
// minFloat64 returns the smallest of the given values.
func minFloat64(x float64, others ...float64) float64 {
min := x
for _, y := range others {
if y < min {
min = y
}
}
return min
}
// maxFloat64 returns the largest of the given values.
func maxFloat64(x float64, others ...float64) float64 {
max := x
for _, y := range others {
if y > max {
max = y
}
}
return max
}
// minInt returns the smallest of the given values.
func minInt(x int, others ...int) int {
min := x
for _, y := range others {
if y < min {
min = y
}
}
return min
}
// maxInt returns the largest of the given values.
func maxInt(x int, others ...int) int {
max := x
for _, y := range others {
if y > max {
max = y
}
}
return max
}
// clampInt returns the number closest to x within the range min..max.
func clampInt(x, min, max int) int {
if x < min {
return min
}
if x > max {
return max
}
return x
}