Examples for 3D surface plots.

This commit adds examples of 3D surface plots and subplots.

_posts/scala/surface-subplots/2016-06-19-3d_surface_plots.html

@@ -0,0 +1,15 @@
+---
+title: 3D Subplots | Examples | Plotly
+name: 3D Subplots
+permalink: scala/3d-subplots/
+description: How to create subplots with 3D graphs in Scala
+layout: base
+thumbnail: thumbnail/3d-subplots.jpg
+language: scala
+page_type: example_index
+has_thumbnail: true
+display_as: 3d_charts
+order: 5
+---
+{% assign examples = site.posts | where:"language","scala" | where:"suite","3d-subplots" | sort: "order" %}
+{% include auto_examples.html examples=examples %}

_posts/scala/surface-subplots/2016-06-19-surface-subplots.html

@@ -0,0 +1,46 @@
+---
+name: 3D surface subplots
+plot_url: https://plot.ly/~pbugnion/546
+language: scala
+suite: 3d-subplots
+order: 2
+sitemap: false
+arrangement: horizontal
+---
+
+val xs = (-3.0 to 3.0 by 0.2).toVector
+val ys = (-3.0 to 3.0 by 0.2).toVector
+
+// 2-dimensional quantum harmonic oscillator energy levels
+def gaussian2D(x: Double, y: Double): Double = Math.exp(-x*x - y*y)
+val z00 = xs.map { x => ys.map { y => gaussian2D(x, y) } } 
+val z01 = xs.map { x => ys.map { y => y*gaussian2D(x, y) } }
+val z11 = xs.map { x => ys.map { y => x*y*gaussian2D(x, y) } }
+val z20 = xs.map { x => ys.map { y => (1-2*x*x)*gaussian2D(x, y) } }
+
+val options = SurfaceOptions().noScale
+
+val figure = GridFigure(2, 2) // four plots split over two rows
+  .title("Eigenfunctions of the 2D quantum harmonic oscillator")
+  .plot(0, 0) { // top left
+    ThreeDPlot()
+      .withSurface(xs, ys, z00, options)
+      .zAxisOptions(AxisOptions().title("psi_00"))
+  }
+  .plot(0, 1) { // top right
+    ThreeDPlot()
+      .withSurface(xs, ys, z01, options)
+      .zAxisOptions(AxisOptions().title("psi_01"))
+  }
+  .plot(1, 0) { // bottom left
+    ThreeDPlot()
+      .withSurface(xs, ys, z11, options)
+      .zAxisOptions(AxisOptions().title("psi_11"))
+  }
+  .plot(1, 1) { // bottom right
+    ThreeDPlot()
+      .withSurface(xs, ys, z20, options)
+      .zAxisOptions(AxisOptions().title("psi_20"))
+  }
+
+draw(figure, "qho-eigenfunctions")

_posts/scala/surface/2016-06-19-3d-surface-plot.html

@@ -0,0 +1,19 @@
+---
+name: 3D surface plot
+plot_url: https://plot.ly/~pbugnion/518
+language: scala
+suite: surface
+order: 1
+sitemap: false
+arrangement: horizontal
+---
+
+val xs = (-3.0 to 3.0 by 0.1).toVector
+val ys = (-3.0 to 3.0 by 0.1).toVector
+
+def gaussian2D(x: Double, y: Double) = Math.exp(-x*x - y*y)
+val zs = xs.map { x => ys.map { y => gaussian2D(x, y) } }
+
+val p = ThreeDPlot().withSurface(xs, ys, zs)
+
+draw(p, "gaussian-surfaces")

_posts/scala/surface/2016-06-19-3d_surface_plots.html

@@ -0,0 +1,15 @@
+---
+title: 3D Surface plots | Examples | Plotly
+name: 3D Surface plots
+permalink: scala/3d-surface-plots/
+description: How to create surface plots in Plotly with Scala.
+layout: user-guide
+thumbnail: thumbnail/3d-surface.jpg
+language: scala
+page_type: example_index
+has_thumbnail: true
+display_as: 3d_charts
+order: 4
+---
+{% assign examples = site.posts | where:"language","scala" | where:"suite","surface" | sort: "order" %}
+{% include auto_examples.html examples=examples %}

_posts/scala/surface/2016-06-19-multiple-surfaces.html

@@ -0,0 +1,38 @@
+---
+name: Multiple surface plots
+plot_url: https://plot.ly/~pbugnion/520
+language: scala
+suite: surface
+order: 3
+sitemap: false
+arrangement: horizontal
+---
+
+// z data
+val z1 = Vector(
+  Vector(8.83, 8.89, 8.81, 8.87, 8.9, 8.87),
+  Vector(8.89, 8.94, 8.85, 8.94, 8.96, 8.92),
+  Vector(8.84, 8.9, 8.82, 8.92, 8.93, 8.91),
+  Vector(8.79, 8.85, 8.79, 8.9, 8.94, 8.92),
+  Vector(8.79, 8.88, 8.81, 8.9, 8.95, 8.92),
+  Vector(8.8, 8.82, 8.78, 8.91, 8.94, 8.92),
+  Vector(8.75, 8.78, 8.77, 8.91, 8.95, 8.92),
+  Vector(8.8, 8.8, 8.77, 8.91, 8.95, 8.94),
+  Vector(8.74, 8.81, 8.76, 8.93, 8.98, 8.99),
+  Vector(8.89, 8.99, 8.92, 9.1, 9.13, 9.11),
+  Vector(8.97, 8.97, 8.91, 9.09, 9.11, 9.11),
+  Vector(9.04, 9.08, 9.05, 9.25, 9.28, 9.27),
+  Vector(9, 9.01, 9, 9.2, 9.23, 9.2),
+  Vector(8.99, 8.99, 8.98, 9.18, 9.2, 9.19),
+  Vector(8.93, 8.97, 8.97, 9.18, 9.2, 9.18)
+)
+
+val z2 = z1.map { _.map { _ + 1.0 } }
+val z3 = z1.map { _.map { _ - 1.0 } }
+
+val p = ThreeDPlot()
+  .withSurface(z1)
+  .withSurface(z2, SurfaceOptions().opacity(0.9).noScale)
+  .withSurface(z3, SurfaceOptions().opacity(0.9).noScale)
+
+draw(p, "multiple-surfaces")

_posts/scala/surface/2016-06-19-styled-surface-plot.html

@@ -0,0 +1,48 @@
+---
+name: Styled surface plot
+plot_url: https://plot.ly/~pbugnion/532
+language: scala
+suite: surface
+order: 2
+sitemap: false
+arrangement: horizontal
+---
+
+/*
+This example requires the `csv` package. To include it, add the
+following lines to your `build.sbt file
+
+libraryDependencies += "com.github.tototoshi" %% "scala-csv" % "1.3.1"
+*/
+
+import scala.io.Source
+import com.github.tototoshi.csv._
+import co.theasi.plotly._
+
+object MountBruno extends App {
+
+  val dataURL = "https://raw.githubusercontent.com/plotly/datasets/master/api_docs/mt_bruno_elevation.csv"
+  val reader = CSVReader.open(Source.fromURL(dataURL))
+
+  val firstRow :: dataRows = reader.all
+
+  val data = dataRows.map {
+    case index :: values => values
+    case _ => throw new IllegalStateException("Empty file")
+  }
+
+  val axisOptions = AxisOptions().noGrid.noLine.noZeroLine.noTickLabels.title("")
+
+  val p = ThreeDPlot()
+    .withSurface(data, SurfaceOptions().colorscale("Earth").noScale)
+    .xAxisOptions(axisOptions)
+    .yAxisOptions(axisOptions)
+    .zAxisOptions(axisOptions)
+
+  val figure = Figure()
+    .plot(p)
+    .margins(0, 0, 0, 0)
+
+  val outputFile = draw(figure, "Mt Bruno")
+  println(outputFile)
+}