does lets-plot support embeded in java and scala

[mullerhai]

lets-plot is very powerful, but I write scala code almost ,so I wanna know does lets-plot is support kotlin/scala mixed code project

[alshan]

Hi, since both Kotlin and Scala run on the JVM and have good interoperability, you can, technically, use it in mixed projects.

However, some of Kotlin's DSL-style syntax will be lost in scale (like the "+" operator).
So a simple plot in Kotlin:

letsPlot(data) + geomPoint {
    x = "hwy"
    y = "cty"
    color = "make"
}

Becomes more verbose in Scala:

letsPlot(data).plus(new geomPoint(
  mapping = { mapping =>  // In Kotlin this would be a function with receiver: PointMapping.() -> Unit.
        // Not even sure Scala will pickup the receiver type form Kotlin's functional type with receiver.
    mapping.x = "hwy"      
    mapping.y = "cty"
    mapping.color = "make"
  }
))

[mullerhai]

Hi, since both Kotlin and Scala run on the JVM and have good interoperability, you can, technically, use it in mixed projects.

However, some of Kotlin's DSL-style syntax will be lost in scale (like the "+" operator). So a simple plot in Kotlin:

letsPlot(data) + geomPoint {
    x = "hwy"
    y = "cty"
    color = "make"
}

Becomes more verbose in Scala:

letsPlot(data).plus(new geomPoint(
  mapping = { mapping =>  // In Kotlin this would be a function with receiver: PointMapping.() -> Unit.
        // Not even sure Scala will pickup the receiver type form Kotlin's functional type with receiver.
    mapping.x = "hwy"      
    mapping.y = "cty"
    mapping.color = "make"
  }
))

thanks ,if I use lets-plot in scala-sbt project, could you tell me which lets-plot module package dependencies should use ,because to many module

[alshan]

You will need to add lets-plot-kotlin-jvm and lets-plot-batik dependencies as shown here: https://github.com/JetBrains/lets-plot-kotlin/blob/master/USAGE_BATIK_JFX_JS.md#jvm-swing-batik .

To get started, it might be a good idea to check out the lets-plot-mini-apps and try running a simple app here: https://github.com/alshan/lets-plot-mini-apps/blob/main/jvm-swing-batik-app/build.gradle.kts .

[mullerhai]

You will need to add lets-plot-kotlin-jvm and lets-plot-batik dependencies as shown here: https://github.com/JetBrains/lets-plot-kotlin/blob/master/USAGE_BATIK_JFX_JS.md#jvm-swing-batik .

To get started, it might be a good idea to check out the lets-plot-mini-apps and try running a simple app here: https://github.com/alshan/lets-plot-mini-apps/blob/main/jvm-swing-batik-app/build.gradle.kts .

Ok ,Very thanks, I will try it