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Data2viz d2v-shape library
There is a newer version: 10.0.4
/*
 * Copyright (c) 2018-2021. data2viz sàrl.
 *
 *  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 io.data2viz.shape

import io.data2viz.geom.Path
import io.data2viz.shape.curve.*

public interface Curve {
    public val path: Path
    public fun areaStart()
    public fun areaEnd()
    public fun lineStart()
    public fun lineEnd()
    public fun point(x: Double, y: Double)
}

// TODO maybe give an alias name for a "(Path) -> Curve" object
public object curves {
    public val basis: (Path) -> Basis                       = { path: Path -> Basis(path) }
    public val basisClosed: (Path) -> BasisClosed           = { path: Path -> BasisClosed(path) }
    public val basisOpen: (Path) -> BasisOpen               = { path: Path -> BasisOpen(path) }
    public val bundle: (Path) -> Bundle                     = { path: Path -> Bundle(path) }
    public val cardinal: (Path) -> Cardinal                 = { path: Path -> Cardinal(path) }
    public val cardinalClosed: (Path) -> CardinalClosed     = { path: Path -> CardinalClosed(path) }
    public val cardinalOpen: (Path) -> CardinalOpen         = { path: Path -> CardinalOpen(path) }
    public val catmullRom: (Path) -> CatmullRom             = { path: Path -> CatmullRom(path) }
    public val catmullRomClosed: (Path) -> CatmullRomClosed = { path: Path -> CatmullRomClosed(path) }
    public val catmullRomOpen: (Path) -> CatmullRomOpen     = { path: Path -> CatmullRomOpen(path) }
    public val linear: (Path) -> Linear                     = { path: Path -> Linear(path) }
    public val linearClosed: (Path) -> LinearClosed         = { path: Path -> LinearClosed(path) }
    public val monotoneX: (Path) -> MonotoneX               = { path: Path -> MonotoneX(path) }
    public val monotoneY: (Path) -> MonotoneY               = { path: Path -> MonotoneY(path) }
    public val natural: (Path) -> Natural                   = { path: Path -> Natural(path) }
//    val radialLinear            = {path: Path -> RadialLinear(path) }
//    val radialBasis             = {path: Path -> Radial(path, Basis(path)) }
//    val radialLinearClosed      = {path: Path -> Radial(path, LinearClosed(path)) }
    public val step: (Path) -> Step                         = { path: Path -> Step(path) }
    public val stepBefore: (Path) -> StepBefore             = { path: Path -> StepBefore(path) }
    public val stepAfter: (Path) -> StepAfter               = { path: Path -> StepAfter(path) }
}

public object areas {
    public val default: (Path) -> Linear                    = { path: Path -> Linear(path) }
    public val basis: (Path) -> Basis                       = { path: Path -> Basis(path) }
}