doodle.image.examples.Interpolation.scala Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of doodle-image_3 Show documentation

image

There is a newer version: 0.27.0

/*
 * Copyright 2015 Creative Scala
 *
 * 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 doodle
package image
package examples

import cats.instances.all.*
import doodle.core.*
import doodle.image.syntax.all.*
import doodle.syntax.all.*

object Interpolation {
  val pts =
    for (x <- 1 to 400 by 20)
      yield Point.cartesian(x.toDouble, (x / 100.0).turns.sin * 100)

  val dot =
    Image.circle(5).fillColor(Color.red)

  val dots =
    (pts
      .map { pt =>
        dot.at(pt.toVec)
      })
      .toList
      .allOn

  val default =
    Image
      .interpolatingSpline(pts)
      .strokeColor(Color.cornflowerBlue)
      .strokeWidth(3.0)

  val tight =
    Image.catmulRom(pts, 1.0).strokeColor(Color.cornflowerBlue).strokeWidth(3.0)

  val loose =
    Image.catmulRom(pts, 0.0).strokeColor(Color.cornflowerBlue).strokeWidth(3.0)

  val image = (default on dots) above (tight on dots) above (loose on dots)
}