Updated build and used new core version

build.gradle.kts

@@ -1,4 +1,8 @@
+import com.moowork.gradle.node.NodeExtension
+import com.moowork.gradle.node.npm.NpmTask
+import com.moowork.gradle.node.task.NodeTask
 import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+import org.jetbrains.kotlin.gradle.tasks.Kotlin2JsCompile
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 buildscript {
@@ -9,7 +13,7 @@ buildscript {
     val dokkaVersion: String by rootProject.extra("0.9.17")
     val serializationVersion: String by rootProject.extra("0.10.0")
     
-    val dataforgeVersion: String by rootProject.extra("0.1.2-dev-1")
+    val dataforgeVersion: String by rootProject.extra("0.1.2-dev-2")
 
     repositories {
         jcenter()
@@ -28,6 +32,7 @@ buildscript {
 
 plugins {
     id("com.jfrog.artifactory") version "4.8.1" apply false
+    id("com.moowork.node") version "1.3.1" apply false
 //    id("org.jetbrains.kotlin.multiplatform") apply false
 }
 
@@ -86,6 +91,7 @@ subprojects {
 
     afterEvaluate {
         extensions.findByType<KotlinMultiplatformExtension>()?.apply {
+            apply(plugin = "com.moowork.node")
             jvm {
                 compilations.all {
                     kotlinOptions {
@@ -113,6 +119,75 @@ subprojects {
                         }
                     }
                 }
+
+                configure<NodeExtension>{
+                    nodeModulesDir = file("$buildDir/node_modules")
+                }
+
+                val compileKotlinJs by tasks.getting(Kotlin2JsCompile::class)
+                val compileTestKotlinJs by tasks.getting(Kotlin2JsCompile::class)
+
+                val populateNodeModules by tasks.registering(Copy::class) {
+                    dependsOn(compileKotlinJs)
+                    from(compileKotlinJs.destinationDir)
+
+                    compilations["test"].runtimeDependencyFiles.forEach {
+                        if (it.exists() && !it.isDirectory) {
+                            from(zipTree(it.absolutePath).matching { include("*.js") })
+                        }
+                    }
+
+                    into("$buildDir/node_modules")
+                }
+
+                val installMocha by tasks.registering(NpmTask::class) {
+                    setWorkingDir(buildDir)
+                    setArgs(listOf("install", "mocha"))
+                }
+
+                val runMocha by tasks.registering(NodeTask::class) {
+                    dependsOn(compileTestKotlinJs, populateNodeModules, installMocha)
+                    setScript(file("$buildDir/node_modules/mocha/bin/mocha"))
+                    setArgs(listOf(compileTestKotlinJs.outputFile))
+                }
+
+                tasks["jsTest"].dependsOn(runMocha)
+            }
+
+            sourceSets {
+
+                val commonMain by getting {
+                    dependencies {
+                        api(kotlin("stdlib"))
+                    }
+                }
+                val commonTest by getting {
+                    dependencies {
+                        implementation(kotlin("test-common"))
+                        implementation(kotlin("test-annotations-common"))
+                    }
+                }
+                val jvmMain by getting {
+                    dependencies {
+                        api(kotlin("stdlib-jdk8"))
+                    }
+                }
+                val jvmTest by getting {
+                    dependencies {
+                        implementation(kotlin("test"))
+                        implementation(kotlin("test-junit"))
+                    }
+                }
+                val jsMain by getting {
+                    dependencies {
+                        api(kotlin("stdlib-js"))
+                    }
+                }
+                val jsTest by getting {
+                    dependencies {
+                        implementation(kotlin("test-js"))
+                    }
+                }
             }
 
             targets.all {

dataforge-vis-spatial-js/build.gradle.kts

@@ -8,10 +8,12 @@ plugins {
     id("org.jetbrains.kotlin.frontend")
 }
 
+val kotlinVersion: String by rootProject.extra
 
 dependencies {
     api(project(":dataforge-vis-spatial"))
     implementation("info.laht.threekt:threejs-wrapper:0.88-npm-2")
+    testCompile("org.jetbrains.kotlin:kotlin-test-js:$kotlinVersion")
 }
 
 configure<KotlinFrontendExtension> {

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/main.kt

@@ -1,6 +1,6 @@
 package hep.dataforge.vis
 
-import hep.dataforge.vis.spatial.ThreeDemoApp
+import hep.dataforge.vis.spatial.jsroot.JSRootDemoApp
 import kotlin.browser.document
 import kotlin.dom.hasClass
 
@@ -37,7 +37,7 @@ fun main() {
 
 fun start(state: dynamic): ApplicationBase? {
     return if (document.body?.hasClass("testApp") == true) {
-        val application = ThreeDemoApp()
+        val application = JSRootDemoApp()
 
         @Suppress("UnsafeCastFromDynamic")
         application.start(state?.appState ?: emptyMap())

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeDemoApp.kt

@@ -1,9 +1,7 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.context.Global
-import hep.dataforge.context.members
 import hep.dataforge.meta.number
-import hep.dataforge.meta.set
 import hep.dataforge.vis.ApplicationBase
 import hep.dataforge.vis.DisplayGroup
 import hep.dataforge.vis.require
@@ -26,20 +24,10 @@ class ThreeDemoApp : ApplicationBase() {
 
 
         //TODO remove after DI fix
-        Global.plugins.load(ThreePlugin())
+//        Global.plugins.load(ThreePlugin())
-        Global.plugins.load(JSRootPlugin())
+//        Global.plugins.load(JSRootPlugin())
 
-//        Global.plugins.load(JSRootPlugin)
+        Global.plugins.load(JSRootPlugin)
-
-        println(Global.plugins.count())
-
-        Global.plugins.forEach {
-            println(it)
-        }
-
-        Global.members<ThreeFactory<*>>(ThreeFactory.TYPE).forEach {
-            println(it)
-        }
 
         val renderer = ThreeOutput(Global)
         renderer.start(document.getElementById("canvas")!!)
@@ -50,31 +38,37 @@ class ThreeDemoApp : ApplicationBase() {
         renderer.render {
             group = group {
                 box {
+                    z = 110.0
                     xSize = 100.0
                     ySize = 100.0
                     zSize = 100.0
                 }
                 box {
+                    visible = false
                     x = 110.0
                     xSize = 100.0
                     ySize = 100.0
                     zSize = 100.0
-                    properties.style["color"] = 1530
+                    color(1530)
+
+                    GlobalScope.launch {
+                        while (isActive) {
+                            delay(500)
+                            visible = !visible
+                        }
+                    }
                 }
             }
-//            convex {
+            convex {
-//                point(50, 50, -50)
+                point(50,50,50)
-//                point(50, -50, -50)
+                point(-50,-50,50)
-//                point(-50, -50, -50)
+                point(-50,50,-50)
-//                point(-50, 50, -50)
+                point(50,-50,-50)
-//                point(50, 50, 50)
+            }
-//                point(50, -50, 50)
-//                point(-50, -50, 50)
-//                point(-50, 50, 50)
-//            }
             jsRoot {
                 y = 110.0
                 shape = box(50, 50, 50)
+                color(12285)
             }
         }
 

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeFactory.kt

@@ -8,7 +8,7 @@ import hep.dataforge.vis.onChange
 import hep.dataforge.vis.spatial.ThreeFactory.Companion.TYPE
 import hep.dataforge.vis.spatial.ThreeFactory.Companion.buildMesh
 import hep.dataforge.vis.spatial.ThreeFactory.Companion.updateMesh
-import hep.dataforge.vis.spatial.three.ConvexGeometry
+import hep.dataforge.vis.spatial.three.ConvexBufferGeometry
 import hep.dataforge.vis.spatial.three.EdgesGeometry
 import hep.dataforge.vis.spatial.three.euler
 import info.laht.threekt.core.BufferGeometry
@@ -77,6 +77,9 @@ abstract class MeshThreeFactory<T : DisplayObject>(override val type: KClass<out
 
     override fun invoke(obj: T): Mesh {
         val geometry = buildGeometry(obj)
+
+        @Suppress("USELESS_IS_CHECK") if (geometry !is BufferGeometry) error("BufferGeometry expected")
+
         val mesh = buildMesh(obj, geometry)
         ThreeFactory.updatePosition(obj, mesh)
         obj.onChange(this) { _, _, _ ->
@@ -92,9 +95,11 @@ object ThreeBoxFactory : MeshThreeFactory<Box>(Box::class) {
         BoxBufferGeometry(obj.xSize, obj.ySize, obj.zSize)
 }
 
-fun Point3D.asVector(): Vector3 = this.asDynamic() as Vector3
+fun Point3D.asVector(): Vector3 = Vector3(this.x, this.y, this.z)
 
 object ThreeConvexFactory : MeshThreeFactory<Convex>(Convex::class) {
-    override fun buildGeometry(obj: Convex) =
+    override fun buildGeometry(obj: Convex): ConvexBufferGeometry {
-        ConvexGeometry(obj.points.map { it.asVector() }.toTypedArray())
+        val vectors = obj.points.map { it.asVector() }.toTypedArray()
+        return ConvexBufferGeometry(vectors)
+    }
 }

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeOutput.kt

@@ -2,7 +2,7 @@ package hep.dataforge.vis.spatial
 
 import hep.dataforge.context.Context
 import hep.dataforge.context.members
-import hep.dataforge.meta.Meta
+import hep.dataforge.meta.*
 import hep.dataforge.output.Output
 import hep.dataforge.vis.DisplayGroup
 import hep.dataforge.vis.DisplayObject
@@ -18,7 +18,7 @@ import org.w3c.dom.Element
 import kotlin.browser.window
 import kotlin.reflect.KClass
 
-class ThreeOutput(override val context: Context) : Output<DisplayObject> {
+class ThreeOutput(override val context: Context, val meta: Meta = EmptyMeta) : Output<DisplayObject> {
 
     private val renderer = WebGLRenderer { antialias = true }.apply {
         setClearColor(ColorConstants.skyblue, 1)
@@ -30,10 +30,10 @@ class ThreeOutput(override val context: Context) : Output<DisplayObject> {
     }
 
     val camera = PerspectiveCamera(
-        75,
+        meta["fov"].int ?: 75,
         window.innerWidth.toDouble() / window.innerHeight,
-        World.CAMERA_NEAR_CLIP,
+        meta["camera.nearClip"].double?: World.CAMERA_NEAR_CLIP,
-        World.CAMERA_FAR_CLIP
+        meta["camera.farClip"].double?: World.CAMERA_FAR_CLIP
     ).apply {
         position.setZ(World.CAMERA_INITIAL_DISTANCE)
         rotation.set(World.CAMERA_INITIAL_X_ANGLE, World.CAMERA_INITIAL_Y_ANGLE, World.CAMERA_INITIAL_Z_ANGLE)
@@ -70,7 +70,7 @@ class ThreeOutput(override val context: Context) : Output<DisplayObject> {
             //is Box -> ThreeBoxFactory(obj)
             //is JSRootObject -> ThreeJSRootFactory(obj)
             //is Convex -> ThreeConvexFactory(obj)
-            else -> findFactory(obj::class)?.invoke(obj)?: error("Factory not found")
+            else -> findFactory(obj::class)?.invoke(obj) ?: error("Factory not found")
         }
     }
 

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreePlugin.kt

@@ -33,6 +33,6 @@ class ThreePlugin : AbstractPlugin() {
     companion object : PluginFactory<ThreePlugin> {
         override val tag = PluginTag("vis.three", "hep.dataforge")
         override val type = ThreePlugin::class
-        override fun build()  = ThreePlugin()
+        override fun invoke()  = ThreePlugin()
     }
 }

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootDemoApp.kt

@@ -0,0 +1,39 @@
+package hep.dataforge.vis.spatial.jsroot
+
+import hep.dataforge.context.Global
+import hep.dataforge.vis.ApplicationBase
+import hep.dataforge.vis.DisplayGroup
+import hep.dataforge.vis.require
+import hep.dataforge.vis.spatial.ThreeOutput
+import hep.dataforge.vis.spatial.render
+import kotlin.browser.document
+
+
+class JSRootDemoApp : ApplicationBase() {
+
+    override val stateKeys: List<String> = emptyList()
+
+    override fun start(state: Map<String, Any>) {
+        require("JSRootGeoBase.js")
+
+
+        //TODO remove after DI fix
+//        Global.plugins.load(ThreePlugin())
+//        Global.plugins.load(JSRootPlugin())
+
+        Global.plugins.load(JSRootPlugin)
+
+        val renderer = ThreeOutput(Global)
+        renderer.start(document.getElementById("canvas")!!)
+        println("started")
+
+        lateinit var group: DisplayGroup
+
+        renderer.render {
+            jsRoot ("./geofile_full.json")
+        }
+
+    }
+
+    override fun dispose() = emptyMap<String, Any>()//mapOf("lines" to presenter.dispose())
+}

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootGEO.kt

@@ -4,5 +4,8 @@
 package hep.dataforge.vis.spatial.jsroot
 
 import info.laht.threekt.core.BufferGeometry
+import info.laht.threekt.core.Object3D
 
 external fun createGeometry(shape: dynamic, limit: Int): BufferGeometry
+
+external fun build(obj: dynamic, opt: dynamic): Object3D

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootGeometry.kt

@@ -0,0 +1,82 @@
+package hep.dataforge.vis.spatial.jsroot
+
+import hep.dataforge.meta.EmptyMeta
+import hep.dataforge.meta.Meta
+import hep.dataforge.meta.buildMeta
+import hep.dataforge.meta.toDynamic
+import hep.dataforge.vis.*
+import hep.dataforge.vis.spatial.MeshThreeFactory
+import info.laht.threekt.core.BufferGeometry
+
+class JSRootGeometry(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, TYPE, meta) {
+
+    var shape by node()
+
+    var facesLimit by int(0)
+
+    fun box(xSize: Number, ySize: Number, zSize: Number) = buildMeta {
+        "_typename" to "TGeoBBox"
+        "fDX" to xSize
+        "fDY" to ySize
+        "fDZ" to zSize
+    }
+
+    /**
+     * Create a GDML union
+     */
+    operator fun Meta.plus(other: Meta) = buildMeta {
+        "fNode.fLeft" to this
+        "fNode.fRight" to other
+        "fNode._typename" to "TGeoUnion"
+    }
+
+    /**
+     * Create a GDML subtraction
+     */
+    operator fun Meta.minus(other: Meta)  = buildMeta {
+        "fNode.fLeft" to this
+        "fNode.fRight" to other
+        "fNode._typename" to "TGeoSubtraction"
+    }
+
+    /**
+     * Intersect two GDML geometries
+     */
+    infix fun Meta.intersect(other: Meta) = buildMeta {
+        "fNode.fLeft" to this
+        "fNode.fRight" to other
+        "fNode._typename" to "TGeoIntersection"
+    }
+
+    companion object {
+        const val TYPE = "geometry.spatial.jsRoot.geometry"
+    }
+}
+
+fun DisplayGroup.jsRoot(meta: Meta = EmptyMeta, action: JSRootGeometry.() -> Unit = {}) =
+    JSRootGeometry(this, meta).apply(action).also { addChild(it) }
+
+//fun Meta.toDynamic(): dynamic {
+//    fun MetaItem<*>.toDynamic(): dynamic = when (this) {
+//        is MetaItem.ValueItem -> this.value.value.asDynamic()
+//        is MetaItem.NodeItem -> this.node.toDynamic()
+//    }
+//
+//    val res = js("{}")
+//    this.items.entries.groupBy { it.key.body }.forEach { (key, value) ->
+//        val list = value.map { it.value }
+//        res[key] = when (list.size) {
+//            1 -> list.first().toDynamic()
+//            else -> list.map { it.toDynamic() }
+//        }
+//    }
+//    return res
+//}
+
+
+object ThreeJSRootFactory : MeshThreeFactory<JSRootGeometry>(JSRootGeometry::class) {
+    override fun buildGeometry(obj: JSRootGeometry): BufferGeometry {
+        val shapeMeta = obj.shape?.toDynamic() ?: error("The shape not defined")
+        return createGeometry(shapeMeta, obj.facesLimit)
+    }
+}

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootObject.kt

@@ -1,84 +1,37 @@
 package hep.dataforge.vis.spatial.jsroot
 
+import hep.dataforge.meta.DynamicMeta
 import hep.dataforge.meta.EmptyMeta
 import hep.dataforge.meta.Meta
-import hep.dataforge.meta.MetaItem
+import hep.dataforge.meta.toDynamic
-import hep.dataforge.meta.buildMeta
+import hep.dataforge.vis.DisplayGroup
-import hep.dataforge.vis.*
+import hep.dataforge.vis.DisplayLeaf
-import hep.dataforge.vis.spatial.MeshThreeFactory
+import hep.dataforge.vis.DisplayObject
-import info.laht.threekt.core.BufferGeometry
+import hep.dataforge.vis.node
+import hep.dataforge.vis.spatial.ThreeFactory
+import info.laht.threekt.core.Object3D
 
 class JSRootObject(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, TYPE, meta) {
 
-    var shape by node()
+    var data by node()
-
+    var options by node()
-    var color by item()
-
-    var facesLimit by int(0)
-
-    fun box(xSize: Number, ySize: Number, zSize: Number) = buildMeta {
-        "_typename" to "TGeoBBox"
-        "fDX" to xSize
-        "fDY" to ySize
-        "fDZ" to zSize
-    }
-
-    /**
-     * Create a GDML union
-     */
-    operator fun Meta.plus(other: Meta) = buildMeta {
-        "fNode.fLeft" to this
-        "fNode.fRight" to other
-        "fNode._typename" to "TGeoUnion"
-    }
-
-    /**
-     * Create a GDML subtraction
-     */
-    operator fun Meta.minus(other: Meta)  = buildMeta {
-        "fNode.fLeft" to this
-        "fNode.fRight" to other
-        "fNode._typename" to "TGeoSubtraction"
-    }
-
-    /**
-     * Intersect two GDML geometries
-     */
-    infix fun Meta.intersect(other: Meta) = buildMeta {
-        "fNode.fLeft" to this
-        "fNode.fRight" to other
-        "fNode._typename" to "TGeoIntersection"
-    }
 
     companion object {
-        const val TYPE = "geometry.spatial.jsRoot"
+        const val TYPE = "geometry.spatial.jsRoot.object"
     }
 }
 
-fun DisplayGroup.jsRoot(meta: Meta = EmptyMeta, action: JSRootObject.() -> Unit = {}) =
+object JSRootObjectFactory : ThreeFactory<JSRootObject> {
-    JSRootObject(this, meta).apply(action).also { addChild(it) }
 
-fun Meta.toDynamic(): dynamic {
+    override val type = JSRootObject::class
-    fun MetaItem<*>.toDynamic(): dynamic = when (this) {
-        is MetaItem.ValueItem -> this.value.value.asDynamic()
-        is MetaItem.NodeItem -> this.node.toDynamic()
-    }
 
-    val res = js("{}")
+    override fun invoke(obj: JSRootObject): Object3D {
-    this.items.entries.groupBy { it.key.body }.forEach { (key, value) ->
+        return build(obj.data?.toDynamic(), obj.options?.toDynamic())
-        val list = value.map { it.value }
-        res[key] = when (list.size) {
-            1 -> list.first().toDynamic()
-            else -> list.map { it.toDynamic() }
-        }
     }
-    return res
 }
 
-
+fun DisplayGroup.jsRoot(path: String) {
-object ThreeJSRootFactory : MeshThreeFactory<JSRootObject>(JSRootObject::class) {
+    JSRootObject(this, EmptyMeta).apply{
-    override fun buildGeometry(obj: JSRootObject): BufferGeometry {
+        data = DynamicMeta(hep.dataforge.vis.require(path))
-        val shapeMeta = obj.shape?.toDynamic() ?: error("The shape not defined")
+    }.also { addChild(it) }
-        return createGeometry(shapeMeta, obj.facesLimit)
-    }
 }

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootPlugin.kt

@@ -20,6 +20,6 @@ class JSRootPlugin : AbstractPlugin() {
     companion object: PluginFactory<JSRootPlugin> {
         override val tag = PluginTag("vis.jsroot", "hep.dataforge")
         override val type = JSRootPlugin::class
-        override fun build() = JSRootPlugin()
+        override fun invoke() = JSRootPlugin()
     }
 }

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/three/ConvexGeometry.kt

@@ -3,6 +3,9 @@
 package hep.dataforge.vis.spatial.three
 
 import info.laht.threekt.core.BufferGeometry
+import info.laht.threekt.core.Geometry
 import info.laht.threekt.math.Vector3
 
-external class ConvexGeometry(points: Array<Vector3>) : BufferGeometry
+external class ConvexGeometry(points: Array<Vector3>) : Geometry
+
+external class ConvexBufferGeometry(points: Array<Vector3>) : BufferGeometry

dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/three/three.kt

@@ -9,6 +9,8 @@ import hep.dataforge.vis.spatial.rotationOrder
 import hep.dataforge.vis.spatial.rotationX
 import hep.dataforge.vis.spatial.rotationY
 import hep.dataforge.vis.spatial.rotationZ
+import info.laht.threekt.core.BufferGeometry
+import info.laht.threekt.core.Geometry
 import info.laht.threekt.core.Object3D
 import info.laht.threekt.math.Euler
 import info.laht.threekt.math.Vector3
@@ -25,4 +27,6 @@ fun Group(children: Collection<Object3D>) = info.laht.threekt.objects.Group().ap
 
 val DisplayObject.euler get() = Euler(rotationX, rotationY, rotationZ, rotationOrder.name)
 
-val MetaItem<*>.vector get() = Vector3(node["x"].float ?: 0f, node["y"].float ?: 0f, node["z"].float ?: 0f)
+val MetaItem<*>.vector get() = Vector3(node["x"].float ?: 0f, node["y"].float ?: 0f, node["z"].float ?: 0f)
+
+fun Geometry.toBufferGeometry(): BufferGeometry = BufferGeometry().apply { fromGeometry(this@toBufferGeometry) }

dataforge-vis-spatial-js/src/main/resources/JSRootGeoBase.js

@@ -3398,7 +3398,7 @@
             process(toplevel, 0, 1, 1000000);
     };
 
-    GEO.build = function (obj, opt, call_back) {
+    GEO.build = function (obj, opt) {
         // function can be used to build three.js model for TGeo object
 
         if (!obj) return;
@@ -3510,7 +3510,7 @@
             //   mesh.renderOrder = clones.maxdepth - entry.stack.length;
         }
 
-        JSROOT.CallBack(call_back, toplevel);
+        //JSROOT.CallBack(call_back, toplevel);
 
         return toplevel;
     };

dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Convex.kt

@@ -32,10 +32,12 @@ class ConvexBuilder {
     }
 
     fun build(parent: DisplayObject?, meta: Meta): Convex {
-        val builder = meta.builder()
+        val points = buildMeta {
-        points.forEachIndexed { index, value ->
+            points.forEachIndexed { index, value ->
-            builder["points.point[$index]"] = value.toMeta()
+                "points.point[$index]" to value.toMeta()
-        }
+            }
-        return Convex(parent, builder.seal())
+        }.seal()
+
+        return Convex(parent, points)
     }
 }

dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/displayObject3D.kt

@@ -6,6 +6,7 @@ import hep.dataforge.vis.DisplayGroup
 import hep.dataforge.vis.DisplayNode
 import hep.dataforge.vis.DisplayObject
 import hep.dataforge.vis.DisplayObject.Companion.DEFAULT_TYPE
+import hep.dataforge.vis.get
 
 fun DisplayGroup.group(meta: Meta = EmptyMeta, action: DisplayGroup.() -> Unit = {}) =
     DisplayNode(this, DEFAULT_TYPE, meta).apply(action).also { addChild(it) }
@@ -18,26 +19,38 @@ fun Output<DisplayObject>.render(meta: Meta = EmptyMeta, action: DisplayGroup.()
 
 // Common properties
 
+/**
+ * Visibility property. Inherited from parent
+ */
 var DisplayObject.visible
-    get() = properties["visible"].boolean ?: true
+    get() = this["visible"].boolean ?: true
     set(value) {
         properties.style["visible"] = value
     }
 
 // 3D Object position
 
+/**
+ * x position property relative to parent. Not inherited
+ */
 var DisplayObject.x
     get() = properties["pos.x"].number ?: 0.0
     set(value) {
         properties.style["pos.x"] = value
     }
 
+/**
+ * y position property. Not inherited
+ */
 var DisplayObject.y
     get() = properties["pos.y"].number ?: 0.0
     set(value) {
         properties.style["pos.y"] = value
     }
 
+/**
+ * z position property. Not inherited
+ */
 var DisplayObject.z
     get() = properties["pos.z"].number ?: 0.0
     set(value) {
@@ -46,18 +59,27 @@ var DisplayObject.z
 
 // 3D Object rotation
 
+/**
+ * x rotation relative to parent. Not inherited
+ */
 var DisplayObject.rotationX
     get() = properties["rotation.x"].number ?: 0.0
     set(value) {
         properties.style["rotation.x"] = value
     }
 
+/**
+ * y rotation relative to parent. Not inherited
+ */
 var DisplayObject.rotationY
     get() = properties["rotation.y"].number ?: 0.0
     set(value) {
         properties.style["rotation.y"] = value
     }
 
+/**
+ * z rotation relative to parent. Not inherited
+ */
 var DisplayObject.rotationZ
     get() = properties["rotation.z"].number ?: 0.0
     set(value) {
@@ -73,6 +95,9 @@ enum class RotationOrder {
     ZYX
 }
 
+/**
+ * Rotation order. Not inherited
+ */
 var DisplayObject.rotationOrder: RotationOrder
     get() = properties["rotation.order"].enum<RotationOrder>() ?: RotationOrder.XYZ
     set(value) {
@@ -81,24 +106,50 @@ var DisplayObject.rotationOrder: RotationOrder
 
 // 3D object scale
 
+/**
+ * X scale. Not inherited
+ */
 var DisplayObject.scaleX
     get() = properties["scale.x"].number ?: 1.0
     set(value) {
         properties.style["scale.x"] = value
     }
 
+/**
+ * Y scale. Not inherited
+ */
 var DisplayObject.scaleY
     get() = properties["scale.y"].number ?: 1.0
     set(value) {
         properties.style["scale.y"] = value
     }
 
+/**
+ * Z scale. Not inherited
+ */
 var DisplayObject.scaleZ
     get() = properties["scale.z"].number ?: 1.0
     set(value) {
         properties.style["scale.z"] = value
     }
 
+fun DisplayObject.color(rgb: Int){
+    this.properties.style["color"]  = rgb
+}
+
+fun DisplayObject.color(meta: Meta){
+    this.properties.style["color"]  = meta
+}
+
+fun DisplayObject.color(r: Int, g: Int, b: Int) = color(buildMeta {
+    "red" to r
+    "green" to g
+    "blue" to b
+})
+
+
+//TODO add inherited scale
+
 object World {
     const val CAMERA_INITIAL_DISTANCE = -500.0
     const val CAMERA_INITIAL_X_ANGLE = -50.0

dataforge-vis-spatial/src/commonTest/kotlin/hep/dataforge/vis/spatial/ConvexTest.kt

@@ -0,0 +1,37 @@
+package hep.dataforge.vis.spatial
+
+import hep.dataforge.meta.get
+import hep.dataforge.meta.getAll
+import hep.dataforge.meta.node
+import hep.dataforge.names.toName
+import hep.dataforge.vis.DisplayNode
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class ConvexTest {
+    @Test
+    fun testConvexBuilder() {
+        val group = DisplayNode().apply {
+            convex {
+                point(50, 50, -50)
+                point(50, -50, -50)
+                point(-50, -50, -50)
+                point(-50, 50, -50)
+                point(50, 50, 50)
+                point(50, -50, 50)
+                point(-50, -50, 50)
+                point(-50, 50, 50)
+            }
+        }
+
+        val convex = group.children.first() as Convex
+
+        val pointsNode = convex.properties["points"].node
+
+        assertEquals(8, pointsNode?.items?.count())
+        val points = pointsNode?.getAll("point".toName())
+
+        assertEquals(8, convex.points.size)
+    }
+
+}