Class Rasterizer

src/main/java/trace/util/Rasterizer.kt:17–172

import java.util.function.Function

/**
 * Created by marc on 6/25/17.
 */

class Rasterizer(val filename: String, val transform: (Vec3) -> Vec2) {
    private val filename_out: String
    private var out: FileOutputStream

    init {
        this.filename_out = filename + ".exr"
        this.out = FileOutputStream(File(filename))
    }

    fun append(f: FLine) {

        val f2 = f.byTransforming { x -> transform(x).toVec3() }
        out.write('B'.toInt())
        for (n in f2.nodes) {
            when (n) {
                is FLine.CubicTo -> {
                    out.write('c'.toInt()); F(n.c1.x); F(n.c1.y); F(n.c2.x); F(n.c2.y); F(n.to.x); F(n.to.y)
                }
                is FLine.LineTo -> {
                    out.write('l'.toInt()); F(n.to.x); F(n.to.y)
                }
                is FLine.MoveTo -> {
                    out.write('m'.toInt()); F(n.to.x); F(n.to.y)
                }
            }
        }


        run {
            val c = f2.attributes.getOr(StandardFLineDrawing.color, { Vec4(1, 1, 1, 1) })?.get()
            if (c != null) {
                out.write('s'.toInt())
                F(c.x)
                F(c.y)
                F(c.z)
                F(c.w)
                out.write('f'.toInt())
                F(c.x)
                F(c.y)
                F(c.z)
                F(c.w)
            }
        }

        run {
            val c = f2.attributes.get(StandardFLineDrawing.strokeColor)?.get()
            if (c != null) {
                out.write('s'.toInt())
                F(c.x)
                F(c.y)
                F(c.z)
                F(c.w)
            }
        }