ichigo/geom/cmd/splinetester.go

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2021-10-03 15:50:09 +11:00
//go:build example
// +build example
package main
import (
"fmt"
"log"
"github.com/DrJosh9000/ichigo/geom"
)
func main() {
// Put your own points here!
points := []geom.Float2{
{X: -7, Y: -2},
{X: -5, Y: 1},
{X: -3, Y: 0},
{X: -2, Y: -3},
{X: 0, Y: 2},
{X: 1, Y: -5},
{X: 3, Y: -2},
{X: 4, Y: 4},
}
linear := &geom.LinearSpline{Points: points}
if err := linear.Prepare(); err != nil {
log.Fatalf("linear.Prepare() = %v, want nil", err)
}
cubic := &geom.CubicSpline{Points: points}
if err := cubic.Prepare(); err != nil {
log.Fatalf("cubic.Prepare() = %v, want nil", err)
}
// Produce interpolated points in CSV-like form.
for x := -8.0; x < 8.0; x += 0.1 {
fmt.Printf("%f,%f,%f\n", x, linear.Interpolate(x), cubic.Interpolate(x))
}
}