// pdal is published to maven central, the snapshot repository can be added in addition
resolvers += Resolver.sonatypeCentralSnapshots // for snaphots
// `<latest version>` refers to the version indicated by the badge above
libraryDependencies ++= Seq(
  "io.pdal" %% "pdal" % "<latest version>", // core library
  "io.pdal" %  "pdal-native" % "<latest version>" // jni bindings
)

// macOS X example with manual JNI installation
// cp -f native/target/resource_managed/main/native/arm64-darwin/libpdaljni.2.8.dylib /usr/local/lib/libpdaljni.2.8.dylib
// place built binary into /usr/local/lib, and pass java.library.path to your JVM
javaOptions += "-Djava.library.path=/usr/local/lib"

// `<latest version>` refers to the version indicated by the badge above
libraryDependencies ++= Seq(
  "io.pdal" %% "pdal-scala" % "<latest version>", // scala core library
  "io.pdal" %  "pdal-native" % "<latest version>" // jni bindings
)

import io.pdal._

// pipeline definition
val json =
  """
     |{
     |  "pipeline" : [
     |    {
     |      "filename" : "/path/to/las",
     |      "type" : "readers.las"
     |    },
     |    {
     |      "type" : "filters.crop"
     |    },
     |    {
     |      "filename" : "/path/to/new/las",
     |      "type" : "writers.las"
     |    }
     |  ]
     |}
  """.stripMargin

val pipeline = Pipeline(json, LogLevel.Debug5) // initialize and make it really noisy

pipeline.execute() // execute the pipeline

val metadata = pipeline.getMetadata() // retrieve metadata
val pvs      = pipeline.getPointViews() // iterator over PointViews
val pv       = pvs.next() // let's take the first PointView

// load all points into JVM memory
// PointCloud provides operations on PDAL points that
// are loaded in this case into JVM memory as a single Array[Byte]
val pointCloud = pv.getPointCloud()
val x = pointCloud.getDouble(0, DimType.X) // get a point with PointId = 0 and only a single dimensions

// in some cases it is not neccesary to load everything into JVM memory
// so it is possible to get only required points directly from the PointView
val y = pv.getDouble(0, DimType.Y)

// it is also possible to get access to the triangular mesh generated via PDAL
val mesh = pv.getTriangularMesh()
// the output is an Array of Triangles
// Each Triangle contains PointIds from the PDAL point table
val triangles = mesh.asArray

pv.close()
pvs.close()
pipeline.close()

import io.pdal._
import io.pdal.pipeline._

// To construct the expected json
val expected =
  """ 
      |{
      |  "pipeline" : [
      |    {
      |      "filename" : "/path/to/las",
      |      "type" : "readers.las"
      |    },
      |    {
      |      "type" : "filters.crop"
      |    },
      |    {
      |      "filename" : "/path/to/new/las",
      |      "type" : "writers.las"
      |    }
      |  ]
      |}
  """.stripMargin
// The same, but using scala DSL
val pc = ReadLas("/path/to/las") ~ FilterCrop() ~ WriteLas("/path/to/new/las")

// The same, but using RawExpr, to support not implemented PDAL Pipeline API features
// RawExpr accepts a circe.Json type, which can be a json object of any desired complexity
val pcWithRawExpr = ReadLas("/path/to/las") ~ RawExpr(Map("type" -> "filters.crop").asJson) ~ WriteLas("/path/to/new/las")

// Create Pipelines from the constructed expressions
val pipeline = pc.toPipeline
val pipelineRaw = pcWithRawExpr.toPipline