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plotly.Plotly.scala Maven / Gradle / Ivy
package plotly
import java.io.{ByteArrayOutputStream, File, InputStream}
import plotly.Codecs._
import plotly.element.Color
import plotly.layout._
import java.lang.{Boolean => JBoolean, Double => JDouble, Integer => JInt}
import java.nio.file.Files
import argonaut.Argonaut._
import argonaut.{Json, PrettyParams}
import plotly.internals.{BetterPrinter, Properties}
import scala.annotation.tailrec
object Plotly {
private val printer = BetterPrinter(PrettyParams.nospace.copy(dropNullKeys = true))
def jsonSnippet(data: Seq[Trace], layout: Layout): String = {
val json = Json.obj(
"data" -> data.toList.asJson,
"layout" -> layout.asJson
)
printer.render(json)
}
def jsSnippet(div: String, data: Seq[Trace], layout: Layout): String = {
val b = new StringBuilder
b ++= "(function () {\n"
for ((d, idx) <- data.zipWithIndex) {
b ++= s" var data$idx = "
b ++= printer.render(d.asJson)
b ++= ";\n"
}
b ++= "\n "
b ++= data.indices.map(idx => s"data$idx").mkString("var data = [", ", ", "];")
b ++= "\n"
b ++= " var layout = "
b ++= printer.render(layout.asJson)
b ++= ";\n\n Plotly.plot('"
b ++= div.replaceAll("'", "\\'")
b ++= "', data, layout);\n"
b ++= "})();"
b.result()
}
private def readFully(is: InputStream): Array[Byte] = {
val buffer = new ByteArrayOutputStream()
val data = Array.ofDim[Byte](16384)
var nRead = is.read(data, 0, data.length)
while (nRead != -1) {
buffer.write(data, 0, nRead)
nRead = is.read(data, 0, data.length)
}
buffer.flush()
buffer.toByteArray
}
def plotlyVersion: String =
Properties.plotlyJsVersion
def plotlyMinJs: String = {
var is: InputStream = null
try {
is = getClass.getClassLoader.getResourceAsStream(s"META-INF/resources/webjars/plotly.js/$plotlyVersion/dist/plotly.min.js")
if (is == null)
throw new Exception(s"plotly.min.js resource not found")
new String(readFully(is), "UTF-8")
} finally {
if (is != null)
is.close()
}
}
def plot(
path: String,
traces: Seq[Trace],
layout: Layout,
useCdn: Boolean = true,
openInBrowser: Boolean = true,
addSuffixIfExists: Boolean = true
): File = {
val f0 = new File(path)
val f =
if (addSuffixIfExists) {
lazy val name = f0.getName
lazy val idx = name.lastIndexOf('.')
lazy val (prefix, suffixOpt) =
if (idx < 0)
(name, None)
else
(name.take(idx), Some(name.drop(idx + 1)))
def nameWithIndex(idx: Int) =
s"$prefix-$idx${suffixOpt.fold("")("." + _)}"
@tailrec
def nonExisting(counter: Option[Int]): File = {
val f = counter.fold(f0) { n =>
new File(f0.getParentFile, nameWithIndex(n))
}
if (f.exists())
nonExisting(counter.fold(Some(1))(n => Some(n + 1)))
else
f
}
nonExisting(None)
} else if (f0.exists())
throw new Exception(s"$f0 already exists")
else
f0
val plotlyHeader =
if (useCdn)
s""""""
else
s""
val divId = "chart"
val html =
s"""
|
|
|${layout.title.getOrElse("plotly chart")}
|$plotlyHeader
|
|
|
|
|
|
""".stripMargin
Files.write(f.toPath, html.getBytes("UTF-8"))
if (openInBrowser) {
val cmdOpt = sys.props.get("os.name").map(_.toLowerCase) match {
case Some("mac os x") =>
Some(Seq("open", f.getAbsolutePath))
case Some(win) if win.startsWith("windows") =>
Some(Seq("cmd", s"start ${f.getAbsolutePath}"))
case Some(lin) if lin.indexOf("linux") >= 0 =>
Some(Seq("xdg-open", f.getAbsolutePath))
case other =>
None
}
cmdOpt match {
case Some(cmd) =>
sys.process.Process(cmd).!
case None =>
Console.err.println(s"Don't know how to open ${f.getAbsolutePath}")
}
}
f
}
implicit class TraceOps(val trace: Trace) extends AnyVal {
def plot(
path: String,
layout: Layout,
useCdn: Boolean,
openInBrowser: Boolean,
addSuffixIfExists: Boolean
): Unit =
Plotly.plot(
path,
Seq(trace),
layout,
useCdn = useCdn,
openInBrowser = openInBrowser,
addSuffixIfExists = addSuffixIfExists
)
def plot(
path: String = "./plot.html",
title: String = null,
legend: Legend = null,
width: JInt = null,
height: JInt = null,
showlegend: JBoolean = null,
xaxis: Axis = null,
yaxis: Axis = null,
xaxis1: Axis = null,
xaxis2: Axis = null,
xaxis3: Axis = null,
xaxis4: Axis = null,
yaxis1: Axis = null,
yaxis2: Axis = null,
yaxis3: Axis = null,
yaxis4: Axis = null,
barmode: BarMode = null,
autosize: JBoolean = null,
margin: Margin = null,
annotations: Seq[Annotation] = null,
plot_bgcolor: Color = null,
paper_bgcolor: Color = null,
font: Font = null,
bargap: JDouble = null,
bargroupgap: JDouble = null,
hovermode: HoverMode = null,
boxmode: BoxMode = null,
useCdn: Boolean = true,
openInBrowser: Boolean = true,
addSuffixIfExists: Boolean = true
): Unit =
plot(
path,
Layout(
title,
legend,
width,
height,
showlegend,
xaxis,
yaxis,
xaxis1,
xaxis2,
xaxis3,
xaxis4,
yaxis1,
yaxis2,
yaxis3,
yaxis4,
barmode,
autosize,
margin,
annotations,
plot_bgcolor,
paper_bgcolor,
font,
bargap,
bargroupgap,
hovermode,
boxmode
),
useCdn,
openInBrowser,
addSuffixIfExists
)
}
implicit class TraceSeqOps(val traces: Seq[Trace]) extends AnyVal {
def plot(
path: String,
layout: Layout,
useCdn: Boolean,
openInBrowser: Boolean,
addSuffixIfExists: Boolean
): Unit =
Plotly.plot(
path,
traces,
layout,
useCdn = useCdn,
openInBrowser = openInBrowser,
addSuffixIfExists = addSuffixIfExists
)
def plot(
path: String = "./plot.html",
title: String = null,
legend: Legend = null,
width: JInt = null,
height: JInt = null,
showlegend: JBoolean = null,
xaxis: Axis = null,
yaxis: Axis = null,
xaxis1: Axis = null,
xaxis2: Axis = null,
xaxis3: Axis = null,
xaxis4: Axis = null,
yaxis1: Axis = null,
yaxis2: Axis = null,
yaxis3: Axis = null,
yaxis4: Axis = null,
barmode: BarMode = null,
autosize: JBoolean = null,
margin: Margin = null,
annotations: Seq[Annotation] = null,
plot_bgcolor: Color = null,
paper_bgcolor: Color = null,
font: Font = null,
bargap: JDouble = null,
bargroupgap: JDouble = null,
hovermode: HoverMode = null,
boxmode: BoxMode = null,
useCdn: Boolean = true,
openInBrowser: Boolean = true,
addSuffixIfExists: Boolean = true
): Unit =
plot(
path,
Layout(
title,
legend,
width,
height,
showlegend,
xaxis,
yaxis,
xaxis1,
xaxis2,
xaxis3,
xaxis4,
yaxis1,
yaxis2,
yaxis3,
yaxis4,
barmode,
autosize,
margin,
annotations,
plot_bgcolor,
paper_bgcolor,
font,
bargap,
bargroupgap,
hovermode,
boxmode
),
useCdn,
openInBrowser,
addSuffixIfExists
)
}
}
