Add surface trace for enabling 3d surface charts

Author: Max Streese

core/shared/src/main/scala/plotly/Sequence.scala

@@ -6,6 +6,7 @@ sealed abstract class Sequence extends Product with Serializable
 
 object Sequence {
   final case class Doubles(seq: Seq[Double]) extends Sequence
+  final case class NestedDoubles(seq: Seq[Doubles]) extends Sequence
   final case class Strings(seq: Seq[String]) extends Sequence
   final case class DateTimes(seq: Seq[LocalDateTime]) extends Sequence
 
@@ -17,6 +18,8 @@ object Sequence {
     Doubles(s.map(_.toDouble))
   implicit def fromLongSeq(s: Seq[Long]): Sequence =
     Doubles(s.map(_.toDouble))
+  implicit def fromNestedDoubleSeq(s: Seq[Seq[Double]]): Sequence =
+    NestedDoubles(s.map(v => Doubles(v)))
   implicit def fromStringSeq(s: Seq[String]): Sequence =
     Strings(s)
   implicit def fromDateTimes(seq: Seq[LocalDateTime]): Sequence =

core/shared/src/main/scala/plotly/Trace.scala

@@ -235,3 +235,22 @@ object Histogram {
       Option(histfunc)
     )
 }
+
+@data class Surface(
+          z: Option[Sequence],
+  showscale: Option[Boolean],
+    opacity: Option[Double]
+) extends Trace
+
+object Surface {
+  def apply(
+            z: Sequence  = null,
+    showscale: JBoolean  = null,
+      opacity: JDouble   = null
+  ): Surface =
+    Surface(
+      Option(z),
+      Option(showscale) .map(b => b: Boolean),
+      Option(opacity)   .map(d => d: Double)
+    )
+}

render/shared/src/main/scala/plotly/internals/ArgonautCodecsInternals.scala

@@ -45,6 +45,7 @@ object ArgonautCodecsInternals extends ArgonautCodecsExtra {
   implicit val boxMeanBoolIsWrapper: IsWrapper[BoxMean.Bool] = null
   implicit val boxPointsBoolIsWrapper: IsWrapper[BoxPoints.Bool] = null
   implicit val sequenceDoublesIsWrapper: IsWrapper[Sequence.Doubles] = null
+  implicit val sequenceNestedDoublesIsWrapper: IsWrapper[Sequence.NestedDoubles] = null
   implicit val sequenceStringsIsWrapper: IsWrapper[Sequence.Strings] = null
   implicit val sequenceDatetimesIsWrapper: IsWrapper[Sequence.DateTimes] = null
   implicit val doubleElementIsWrapper: IsWrapper[Element.DoubleElement] = null

tests/src/test/scala/plotly/doc/DocumentationTests.scala

@@ -249,10 +249,10 @@ class DocumentationTests extends FlatSpec with Matchers {
     // TODO Heatmaps
     // TODO Heatmap and contour colorscales
     // TODO Polar charts
-    "scientific/log"
+    "scientific/log",
     // TODO Financial charts
     // TODO Maps
-    // TODO 3D charts
+    "3d/3d-surface"
   )
 
   val subDirs = subDirNames.map(new File(dir, _))