Major caching update for objects

dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/common/VisualGroup.kt

@@ -0,0 +1,130 @@
+package hep.dataforge.vis.common
+
+import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.meta.MetaItem
+import hep.dataforge.names.Name
+import hep.dataforge.names.get
+import hep.dataforge.provider.Provider
+import kotlinx.serialization.Transient
+import kotlin.collections.set
+
+open class VisualGroup<T : VisualObject> : AbstractVisualObject(), Iterable<T>, Provider {
+
+    protected val namedChildren = HashMap<Name, T>()
+    protected val unnamedChildren = ArrayList<T>()
+
+    override val defaultTarget: String get() = VisualObject.TYPE
+
+    override fun iterator(): Iterator<T> = (namedChildren.values + unnamedChildren).iterator()
+
+    override fun provideTop(target: String): Map<Name, Any> {
+        return when (target) {
+            VisualObject.TYPE -> namedChildren
+            else -> emptyMap()
+        }
+    }
+
+    override fun propertyChanged(name: Name, before: MetaItem<*>?, after: MetaItem<*>?) {
+        super.propertyChanged(name, before, after)
+        forEach {
+            it.propertyChanged(name, before, after)
+        }
+    }
+
+    private data class Listener<T : VisualObject>(val owner: Any?, val callback: (Name?, T?) -> Unit)
+
+    @Transient
+    private val listeners = HashSet<Listener<T>>()
+
+    /**
+     * Add listener for children change
+     */
+    fun onChildrenChange(owner: Any?, action: (Name?, T?) -> Unit) {
+        listeners.add(Listener(owner, action))
+    }
+
+
+    /**
+     * Remove children change listener
+     */
+    fun removeChildrenChangeListener(owner: Any?) {
+        listeners.removeAll { it.owner === owner }
+    }
+
+    operator fun set(name: Name, child: T?) {
+        if (child == null) {
+            namedChildren.remove(name)
+        } else {
+            if (child.parent == null) {
+                child.parent = this
+            } else {
+                error("Can't reassign existing parent for $child")
+            }
+            namedChildren[name] = child
+        }
+        listeners.forEach { it.callback(name, child) }
+    }
+
+    /**
+     * Add named or unnamed child to the group. If key is [null] the child is considered unnamed. Both key and value are not
+     * allowed to be null in the same time. If name is present and [child] is null, the appropriate element is removed.
+     */
+    operator fun set(name: Name?, child: T?) {
+        when {
+            name != null -> set(name, child)
+            child != null -> add(child)
+            else -> error("Both key and child element are empty")
+        }
+    }
+
+    operator fun set(key: String?, child: T?) = set(key?.asName(), child)
+
+    /**
+     * Get named child by name
+     */
+    operator fun get(name: Name): T? = namedChildren[name]
+
+    /**
+     * Get named child by string
+     */
+    operator fun get(key: String): T? = namedChildren.get(key)
+
+    /**
+     * Get an unnamed child
+     */
+    operator fun get(index: Int): T? = unnamedChildren[index]
+
+    /**
+     * Append unnamed child
+     */
+    fun add(child: T) {
+        if (child.parent == null) {
+            child.parent = this
+        } else {
+            error("Can't reassign existing parent for $child")
+        }
+        unnamedChildren.add(child)
+        listeners.forEach { it.callback(null, child) }
+    }
+
+    /**
+     * remove unnamed child
+     */
+    fun remove(child: VisualObject) {
+        unnamedChildren.remove(child)
+        listeners.forEach { it.callback(null, null) }
+    }
+
+    protected fun MetaBuilder.updateChildren() {
+        //adding unnamed children
+        "unnamedChildren" to unnamedChildren.map { it.toMeta() }
+        //adding named children
+        namedChildren.forEach {
+            "children[${it.key}]" to it.value.toMeta()
+        }
+    }
+
+    override fun MetaBuilder.updateMeta() {
+        updateChildren()
+    }
+}

dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/common/VisualLeaf.kt

@@ -6,10 +6,7 @@ import hep.dataforge.names.Name
 /**
  * Basic [VisualObject] leaf element
  */
-open class VisualLeaf(
+open class VisualLeaf(meta: Meta = EmptyMeta) : AbstractVisualObject(), Configurable {
-    parent: VisualObject? = null,
-    meta: Meta = EmptyMeta
-) : AbstractVisualObject(parent), Configurable {
 
     val properties = Styled(meta)
 

dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/common/VisualObject.kt

@@ -1,12 +1,13 @@
 package hep.dataforge.vis.common
 
+import hep.dataforge.io.ConfigSerializer
 import hep.dataforge.meta.*
 import hep.dataforge.names.Name
-import hep.dataforge.names.get
-import hep.dataforge.provider.Provider
 import hep.dataforge.provider.Type
 import hep.dataforge.vis.common.VisualObject.Companion.TYPE
-import kotlin.collections.set
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.Transient
 
 private fun Laminate.withTop(meta: Meta): Laminate = Laminate(listOf(meta) + layers)
 private fun Laminate.withBottom(meta: Meta): Laminate = Laminate(layers + meta)
@@ -22,7 +23,8 @@ interface VisualObject : MetaRepr, Configurable {
     /**
      * The parent object of this one. If null, this one is a root.
      */
-    val parent: VisualObject?
+    @Transient
+    var parent: VisualObject?
 
     /**
      * Set property for this object
@@ -62,8 +64,10 @@ internal data class MetaListener(
     val action: (name: Name, oldItem: MetaItem<*>?, newItem: MetaItem<*>?) -> Unit
 )
 
+abstract class AbstractVisualObject : VisualObject {
+    override var parent: VisualObject? = null
 
-abstract class AbstractVisualObject(override val parent: VisualObject?) : VisualObject {
+    @Transient
     private val listeners = HashSet<MetaListener>()
 
     override fun propertyChanged(name: Name, before: MetaItem<*>?, after: MetaItem<*>?) {
@@ -80,6 +84,8 @@ abstract class AbstractVisualObject(override val parent: VisualObject?) : Visual
         listeners.removeAll { it.owner == owner }
     }
 
+    @Serializable(ConfigSerializer::class)
+    @SerialName("properties")
     private var _config: Config? = null
     override val config: Config
         get() = _config ?: Config().also { config ->
@@ -103,117 +109,9 @@ abstract class AbstractVisualObject(override val parent: VisualObject?) : Visual
 
     override fun toMeta(): Meta = buildMeta {
         "type" to type
-        "properties" to _config
+        "properties" to config
         updateMeta()
     }
 }
 
-open class VisualGroup<T : VisualObject>(parent: VisualObject?) : AbstractVisualObject(parent), Iterable<T>, Provider {
-
-    protected val namedChildren = HashMap<Name, T>()
-    protected val unnamedChildren = ArrayList<T>()
-
-    override val defaultTarget: String get() = VisualObject.TYPE
-
-    override fun iterator(): Iterator<T> = (namedChildren.values + unnamedChildren).iterator()
-
-    override fun provideTop(target: String): Map<Name, Any> {
-        return when (target) {
-            TYPE -> namedChildren
-            else -> emptyMap()
-        }
-    }
-
-    override fun propertyChanged(name: Name, before: MetaItem<*>?, after: MetaItem<*>?) {
-        super.propertyChanged(name, before, after)
-        forEach {
-            it.propertyChanged(name, before, after)
-        }
-    }
-
-    private data class Listener<T : VisualObject>(val owner: Any?, val callback: (Name?, T?) -> Unit)
-
-    private val listeners = HashSet<Listener<T>>()
-
-    /**
-     * Add listener for children change
-     */
-    fun onChildrenChange(owner: Any?, action: (Name?, T?) -> Unit) {
-        listeners.add(Listener(owner, action))
-    }
-
-
-    /**
-     * Remove children change listener
-     */
-    fun removeChildrenChangeListener(owner: Any?) {
-        listeners.removeAll { it.owner === owner }
-    }
-
-    /**
-     * Add named or unnamed child to the group. If key is [null] the child is considered unnamed. Both key and value are not
-     * allowed to be null in the same time. If name is present and [child] is null, the appropriate element is removed.
-     */
-    operator fun set(name: Name?, child: T?) {
-        when {
-            name != null -> {
-                if (child == null) {
-                    namedChildren.remove(name)
-                } else {
-                    namedChildren[name] = child
-                }
-                listeners.forEach { it.callback(name, child) }
-            }
-            child != null -> unnamedChildren.add(child)
-            else -> error("Both key and child element are empty")
-        }
-    }
-
-    operator fun set(key: String?, child: T?) = set(key?.asName(), child)
-
-    /**
-     * Get named child by name
-     */
-    operator fun get(name: Name): T? = namedChildren[name]
-
-    /**
-     * Get named child by string
-     */
-    operator fun get(key: String): T? = namedChildren[key]
-
-    /**
-     * Get an unnamed child
-     */
-    operator fun get(index: Int): T? = unnamedChildren[index]
-
-    /**
-     * Append unnamed child
-     */
-    fun add(child: T) {
-        unnamedChildren.add(child)
-        listeners.forEach { it.callback(null, child) }
-    }
-
-    /**
-     * remove unnamed child
-     */
-    fun remove(child: VisualObject) {
-        unnamedChildren.remove(child)
-        listeners.forEach { it.callback(null, null) }
-    }
-
-    protected fun MetaBuilder.updateChildren() {
-        //adding unnamed children
-        "children" to unnamedChildren.map { it.toMeta() }
-        //adding named children
-        namedChildren.forEach {
-            "children[${it.key}" to it.value.toMeta()
-        }
-    }
-
-    override fun MetaBuilder.updateMeta() {
-        updateChildren()
-    }
-}
-
 

dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/common/VisualPlugin.kt

@@ -0,0 +1,37 @@
+package hep.dataforge.vis.common
+
+import hep.dataforge.context.*
+import hep.dataforge.meta.Meta
+import kotlin.reflect.KClass
+
+interface VisualFactory<T : VisualObject> {
+    val type: KClass<T>
+    operator fun invoke(
+        context: Context,
+        parent: VisualObject?,
+        meta: Meta
+    ): T
+}
+
+class VisualPlugin(meta: Meta) : AbstractPlugin(meta) {
+    override val tag: PluginTag get() = Companion.tag
+
+    /**
+     * Create a list of factories on first call and cache it
+     */
+    val visualFactories by lazy {
+        context.content<VisualFactory<*>>(VISUAL_FACTORY_TYPE).mapKeys { it.value.type }
+    }
+
+    inline fun <reified T : VisualObject> buildVisual(parent: VisualObject?, meta: Meta): T? {
+        return visualFactories[T::class]?.invoke(context, parent, meta) as T?
+    }
+
+    companion object : PluginFactory<VisualPlugin> {
+        override val tag: PluginTag = PluginTag(name = "visual", group = PluginTag.DATAFORGE_GROUP)
+        override val type: KClass<out VisualPlugin> = VisualPlugin::class
+        override fun invoke(meta: Meta): VisualPlugin = VisualPlugin(meta)
+
+        const val VISUAL_FACTORY_TYPE = "visual.factory"
+    }
+}

dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/FXMeta.kt

@@ -96,14 +96,14 @@ class FXMetaNode<M : MetaNode<M>>(
                 if (name.length == 1) invalidate()
             }
 
-            (node as? MutableMeta<*>)?.onChange(this, listener)
+            (node as? Config)?.onChange(this, listener)
 
             nodeProperty.addListener { _, oldValue, newValue ->
                 if (newValue == null) {
-                    (oldValue as? MutableMeta<*>)?.removeListener(this)
+                    (oldValue as? Config)?.removeListener(this)
                 }
 
-                if (newValue is MutableMeta<*>) {
+                if (newValue is Config) {
                     newValue.onChange(this, listener)
                 }
             }

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

@@ -7,7 +7,7 @@ kotlin {
         val commonMain by getting {
             dependencies {
                 api(project(":dataforge-vis-spatial"))
-                api("scientifik:gdml:0.1.3")
+                api("scientifik:gdml:0.1.4-dev-1")
             }
         }
         val jsMain by getting {

dataforge-vis-spatial-gdml/src/commonMain/kotlin/hep/dataforge/vis/spatial/gdml/GDMLTransformer.kt

@@ -14,6 +14,12 @@ class GDMLTransformer(val root: GDML) {
     private val materialCache = HashMap<GDMLMaterial, Meta>()
     private val random = Random(111)
 
+    enum class Action{
+        ACCEPT,
+        REJECT,
+        CACHE
+    }
+
     /**
      * A special group for local templates
      */
@@ -34,15 +40,15 @@ class GDMLTransformer(val root: GDML) {
         }
     }
 
-    var acceptSolid: (GDMLSolid) -> Boolean = { true }
+    var solidAction: (GDMLSolid) -> Action = { Action.CACHE }
-    var acceptGroup: (GDMLGroup) -> Boolean = { true }
+    var volumeAction: (GDMLGroup) -> Action = { Action.ACCEPT }
 
     fun printStatistics() {
         println("Solids:")
         solidCounter.entries.sortedByDescending { it.value }.forEach {
             println("\t$it")
         }
-        println(println("Solids total: ${solidCounter.values.sum()}"))
+        println("Solids total: ${solidCounter.values.sum()}")
     }
 
     private val solidCounter = HashMap<String, Int>()
@@ -53,8 +59,9 @@ class GDMLTransformer(val root: GDML) {
 
     var onFinish: GDMLTransformer.() -> Unit = {}
 
-    internal fun finished() {
+    internal fun finished(final: VisualGroup3D) {
-        onFinish(this)
+        final.templates = templates
+        onFinish(this@GDMLTransformer)
     }
 
 }

dataforge-vis-spatial-gdml/src/commonMain/kotlin/hep/dataforge/vis/spatial/gdml/visualGDML.kt

@@ -1,6 +1,8 @@
 package hep.dataforge.vis.spatial.gdml
 
 import hep.dataforge.meta.Meta
+import hep.dataforge.names.plus
+import hep.dataforge.vis.common.asName
 import hep.dataforge.vis.spatial.*
 import scientifik.gdml.*
 import kotlin.math.cos
@@ -131,6 +133,8 @@ private fun VisualGroup3D.addSolid(
     }.apply(block)
 }
 
+private val volumesName = "volumes".asName()
+
 private fun VisualGroup3D.addPhysicalVolume(
     context: GDMLTransformer,
     physVolume: GDMLPhysVolume
@@ -138,17 +142,37 @@ private fun VisualGroup3D.addPhysicalVolume(
     val volume: GDMLGroup = physVolume.volumeref.resolve(context.root)
         ?: error("Volume with ref ${physVolume.volumeref.ref} could not be resolved")
 
-    if (context.acceptGroup(volume)) {
+    when (context.volumeAction(volume)) {
-
+        GDMLTransformer.Action.ACCEPT -> {
-        this[physVolume.name] = volume(
+            this[physVolume.name] = volume(context, volume).apply {
-            context,
+                withPosition(
-            volume,
+                    context.lUnit,
                     physVolume.resolvePosition(context.root),
                     physVolume.resolveRotation(context.root),
                     physVolume.resolveScale(context.root)
                 )
             }
         }
+        GDMLTransformer.Action.CACHE -> {
+            val name = volumesName + volume.name.asName()
+            if (context.templates[name] == null) {
+                context.templates[name] = volume(context, volume)
+            }
+
+            this[physVolume.name] = Proxy(name).apply {
+                withPosition(
+                    context.lUnit,
+                    physVolume.resolvePosition(context.root),
+                    physVolume.resolveRotation(context.root),
+                    physVolume.resolveScale(context.root)
+                )
+            }
+        }
+        GDMLTransformer.Action.REJECT -> {
+            //ignore
+        }
+    }
+}
 
 private fun VisualGroup3D.addDivisionVolume(
     context: GDMLTransformer,
@@ -168,36 +192,38 @@ private fun VisualGroup3D.addDivisionVolume(
 
 private fun VisualGroup3D.addVolume(
     context: GDMLTransformer,
-    group: GDMLGroup,
+    group: GDMLGroup
-    position: GDMLPosition? = null,
-    rotation: GDMLRotation? = null,
-    scale: GDMLScale? = null
 ) {
-    this[group.name] = volume(context, group, position, rotation, scale)
+    this[group.name] = volume(context, group)
 }
 
 private fun volume(
     context: GDMLTransformer,
-    group: GDMLGroup,
+    group: GDMLGroup
-    position: GDMLPosition? = null,
-    rotation: GDMLRotation? = null,
-    scale: GDMLScale? = null
 ): VisualGroup3D {
-
     return VisualGroup3D().apply {
-        withPosition(context.lUnit, position, rotation, scale)
-
         if (group is GDMLVolume) {
             val solid = group.solidref.resolve(context.root)
                 ?: error("Solid with tag ${group.solidref.ref} for volume ${group.name} not defined")
             val material = group.materialref.resolve(context.root) ?: GDMLElement(group.materialref.ref)
 
-            if (context.acceptSolid(solid)) {
+            when (context.solidAction(solid)) {
-                val cachedSolid = context.templates[solid.name]
+                GDMLTransformer.Action.ACCEPT -> {
-                    ?: context.templates.addSolid(context, solid, solid.name) {
+                    addSolid(context, solid, solid.name) {
                         this.material = context.resolveColor(group, material, solid)
                     }
-                proxy(cachedSolid, solid.name)
+                }
+                GDMLTransformer.Action.CACHE -> {
+                    if (context.templates[solid.name] == null) {
+                        context.templates.addSolid(context, solid, solid.name) {
+                            this.material = context.resolveColor(group, material, solid)
+                        }
+                    }
+                    ref(solid.name.asName(), solid.name)
+                }
+                GDMLTransformer.Action.REJECT -> {
+                    //ignore
+                }
             }
 
             when (val vol = group.placement) {
@@ -220,6 +246,6 @@ fun GDML.toVisual(block: GDMLTransformer.() -> Unit = {}): VisualGroup3D {
     val context = GDMLTransformer(this).apply(block)
 
     return volume(context, world).also {
-        context.finished()
+        context.finished(it)
     }
 }

dataforge-vis-spatial-gdml/src/jsMain/kotlin/hep/dataforge/vis/spatial/gdml/demo/GDMLDemoApp.kt

@@ -3,6 +3,7 @@ package hep.dataforge.vis.spatial.gdml.demo
 import hep.dataforge.context.Global
 import hep.dataforge.vis.hmr.ApplicationBase
 import hep.dataforge.vis.hmr.startApplication
+import hep.dataforge.vis.spatial.gdml.GDMLTransformer
 import hep.dataforge.vis.spatial.gdml.LUnit
 import hep.dataforge.vis.spatial.gdml.toVisual
 import hep.dataforge.vis.spatial.three.ThreePlugin
@@ -82,7 +83,7 @@ private class GDMLDemoApp : ApplicationBase() {
         val canvas = document.getElementById("canvas") ?: error("Element with id canvas not found on page")
         canvas.clear()
 
-        val action: suspend CoroutineScope.(String) -> Unit = {
+        val action: suspend CoroutineScope.(String) -> Unit = { it ->
             canvas.clear()
             launch { spinner(true) }
             launch { message("Loading GDML") }
@@ -90,12 +91,16 @@ private class GDMLDemoApp : ApplicationBase() {
             launch { message("Converting GDML into DF-VIS format") }
             val visual = gdml.toVisual {
                 lUnit = LUnit.CM
-                acceptSolid = { solid ->
+                volumeAction = { volume ->
-                    !solid.name.startsWith("ecal")
+                    when {
-//                            && !solid.name.startsWith("V")
+                        volume.name.startsWith("ecal") -> GDMLTransformer.Action.REJECT
-//                            && !solid.name.startsWith("U")
+                        volume.name.startsWith("U") -> GDMLTransformer.Action.CACHE
+                        volume.name.startsWith("V") -> GDMLTransformer.Action.CACHE
+                        else -> GDMLTransformer.Action.ACCEPT
                     }
                 }
+
+            }
             launch { message("Rendering") }
             val output = three.output(canvas)
             output.render(visual)

dataforge-vis-spatial-gdml/src/jvmMain/kotlin/hep/dataforge/vis/spatial/gdml/testMain.kt

@@ -1,25 +1,38 @@
 package hep.dataforge.vis.spatial.gdml
 
+import hep.dataforge.names.toName
+import hep.dataforge.vis.spatial.VisualGroup3D
 import nl.adaptivity.xmlutil.StAXReader
 import scientifik.gdml.GDML
 import java.io.File
-import java.net.URL
 
 fun main() {
-    val url = URL("https://drive.google.com/open?id=1w5e7fILMN83JGgB8WANJUYm8OW2s0WVO")
     val file = File("D:\\Work\\Projects\\gdml.kt\\gdml-source\\BM@N.gdml")
-    val stream = if (file.exists()) {
+    //val file = File("D:\\Work\\Projects\\gdml.kt\\gdml-source\\cubes.gdml")
-        file.inputStream()
-    } else {
-        url.openStream()
-    }
 
-    val xmlReader = StAXReader(stream, "UTF-8")
+    val xmlReader = StAXReader(file.inputStream(), "UTF-8")
     val xml = GDML.format.parse(GDML.serializer(), xmlReader)
-    xml.toVisual {
+    val visual = xml.toVisual {
         lUnit = LUnit.CM
-        //acceptSolid = { solid -> !solid.name.startsWith("ecal") && !solid.name.startsWith("V") }
+        volumeAction = { volume ->
+            when {
+                volume.name.startsWith("ecal") -> GDMLTransformer.Action.CACHE
+                volume.name.startsWith("U") -> GDMLTransformer.Action.CACHE
+                volume.name.startsWith("V") -> GDMLTransformer.Action.CACHE
+                else -> GDMLTransformer.Action.ACCEPT
+            }
+        }
         onFinish = { printStatistics() }
     }
-    readLine()
+
+    val template = visual.getTemplate("volumes.ecal01mod".toName())
+    println(template)
+    visual.flatMap { (it as? VisualGroup3D) ?: listOf(it) }.forEach {
+        if(it.parent==null) error("")
+    }
+    //readLine()
+    //val meta = visual.toMeta()
+//    val tmpFile = File.createTempFile("dataforge-visual", "json")
+    //tmpFile.writeText(meta.toString())
+    //println(tmpFile.absoluteFile)
 }

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

@@ -49,7 +49,7 @@ class ThreePlugin : AbstractPlugin() {
                 updatePosition(obj)
             }
             is Composite -> compositeFactory(obj)
-            is Proxy3D -> proxyFactory(obj)
+            is Proxy -> proxyFactory(obj)
             else -> {
                 //find specialized factory for this type if it is present
                 val factory = findObjectFactory(obj::class)
@@ -84,7 +84,7 @@ class ThreePlugin : AbstractPlugin() {
     }
 
     companion object : PluginFactory<ThreePlugin> {
-        override val tag = PluginTag("vis.three", "hep.dataforge")
+        override val tag = PluginTag("visual.three", PluginTag.DATAFORGE_GROUP)
         override val type = ThreePlugin::class
         override fun invoke(meta: Meta) = ThreePlugin()
     }

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

@@ -1,22 +1,22 @@
 package hep.dataforge.vis.spatial.three
 
-import hep.dataforge.vis.spatial.Proxy3D
+import hep.dataforge.vis.spatial.Proxy
 import hep.dataforge.vis.spatial.VisualObject3D
 import info.laht.threekt.core.Object3D
-import info.laht.threekt.objects.Mesh
 
-class ThreeProxyFactory(val three: ThreePlugin) : ThreeFactory<Proxy3D> {
+class ThreeProxyFactory(val three: ThreePlugin) : ThreeFactory<Proxy> {
-    private val cache = HashMap<VisualObject3D, Mesh>()
+    private val cache = HashMap<VisualObject3D, Object3D>()
 
-    override val type = Proxy3D::class
+    override val type = Proxy::class
 
-    override fun invoke(obj: Proxy3D): Object3D {
+    override fun invoke(obj: Proxy): Object3D {
-        val templateMesh = cache.getOrPut(obj.template) {
+        val template = obj.template
-            three.buildObject3D(obj.template) as Mesh
+        val cachedObject = cache.getOrPut(template) {
+            three.buildObject3D(template)
         }
 
         //val mesh = Mesh(templateMesh.geometry as BufferGeometry, templateMesh.material)
-        val mesh = templateMesh.clone()
+        val mesh = cachedObject.clone()
 
         mesh.updatePosition(obj)
         return mesh

dataforge-vis-spatial/build.gradle.kts

@@ -2,13 +2,34 @@ plugins {
     id("scientifik.mpp")
 }
 
+scientifik{
+    serialization = true
+}
+
 kotlin {
+    jvm{
+        withJava()
+    }
     sourceSets {
-        val commonMain by getting {
+        commonMain {
             dependencies {
                 api(project(":dataforge-vis-common"))
             }
         }
+        jvmMain{
+            dependencies {
+
+            }
+        }
+        jsMain{
+            dependencies {
+                api("info.laht.threekt:threejs-wrapper:0.106-npm-3")
+                implementation(npm("three", "0.106.2"))
+                implementation(npm("@hi-level/three-csg"))
+                implementation(npm("style-loader"))
+                implementation(npm("element-resize-event"))
+            }
+        }
     }
 }
 

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

@@ -1,9 +1,19 @@
 package hep.dataforge.vis.spatial
 
+import hep.dataforge.context.Context
+import hep.dataforge.meta.Meta
+import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.meta.float
+import hep.dataforge.meta.get
+import hep.dataforge.vis.common.VisualFactory
 import hep.dataforge.vis.common.VisualObject
+import kotlin.reflect.KClass
 
-class Box(parent: VisualObject?, val xSize: Number, val ySize: Number, val zSize: Number) :
+data class Box(
-    VisualLeaf3D(parent), Shape {
+    val xSize: Float,
+    val ySize: Float,
+    val zSize: Float
+) : VisualLeaf3D(), Shape {
 
     //TODO add helper for color configuration
     override fun <T : Any> toGeometry(geometryBuilder: GeometryBuilder<T>) {
@@ -26,9 +36,24 @@ class Box(parent: VisualObject?, val xSize: Number, val ySize: Number, val zSize
         geometryBuilder.face4(node8, node5, node6, node7)
     }
 
-    companion object {
+    override fun MetaBuilder.updateMeta() {
+        "xSize" to xSize
+        "ySize" to ySize
+        "zSize" to ySize
+    }
+
+    companion object : VisualFactory<Box> {
         const val TYPE = "geometry.3d.box"
 
+        override val type: KClass<Box> get() = Box::class
+
+        override fun invoke(context: Context, parent: VisualObject?, meta: Meta): Box = Box(
+            meta["xSize"].float!!,
+            meta["ySize"].float!!,
+            meta["zSize"].float!!
+        ).apply {
+            update(meta)
+        }
     }
 }
 
@@ -38,4 +63,4 @@ inline fun VisualGroup3D.box(
     zSize: Number,
     name: String? = null,
     action: Box.() -> Unit = {}
-) = Box(this, xSize, ySize, zSize).apply(action).also { set(name, it) }
+) = Box(xSize.toFloat(), ySize.toFloat(), zSize.toFloat()).apply(action).also { set(name, it) }

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

@@ -2,7 +2,6 @@ package hep.dataforge.vis.spatial
 
 import hep.dataforge.meta.isEmpty
 import hep.dataforge.meta.update
-import hep.dataforge.vis.common.VisualObject
 
 enum class CompositeType {
     UNION,
@@ -11,13 +10,12 @@ enum class CompositeType {
 }
 
 open class Composite(
-    parent: VisualObject?,
     val first: VisualObject3D,
     val second: VisualObject3D,
     val compositeType: CompositeType = CompositeType.UNION
-) : VisualLeaf3D(parent)
+) : VisualLeaf3D()
 
-fun VisualGroup3D.composite(
+inline fun VisualGroup3D.composite(
     type: CompositeType,
     name: String? = null,
     builder: VisualGroup3D.() -> Unit
@@ -25,7 +23,7 @@ fun VisualGroup3D.composite(
     val group = VisualGroup3D().apply(builder)
     val children = group.filterIsInstance<VisualObject3D>()
     if (children.size != 2) error("Composite requires exactly two children")
-    return Composite(this, children[0], children[1], type).also {
+    return Composite(children[0], children[1], type).also {
         if (!group.config.isEmpty()) {
             it.config.update(group.config)
         }

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

@@ -1,17 +1,24 @@
 package hep.dataforge.vis.spatial
 
-import hep.dataforge.vis.common.VisualObject
+import hep.dataforge.meta.MetaBuilder
 
-class Convex(parent: VisualObject?, val points: List<Point3D>) : VisualLeaf3D(parent) {
+class Convex(
+    val points: List<Point3D>
+) : VisualLeaf3D() {
 
+    override fun MetaBuilder.updateMeta() {
+        "points" to {
+            "point" to points.map{it.toMeta()}
+        }
+    }
 
     companion object {
         const val TYPE = "geometry.3d.convex"
     }
 }
 
-fun VisualGroup3D.convex(action: ConvexBuilder.() -> Unit = {}) =
+inline fun VisualGroup3D.convex(name: String? = null, action: ConvexBuilder.() -> Unit = {}) =
-    ConvexBuilder().apply(action).build(this).also { add(it) }
+    ConvexBuilder().apply(action).build().also { set(name, it) }
 
 class ConvexBuilder {
     private val points = ArrayList<Point3D>()
@@ -20,7 +27,7 @@ class ConvexBuilder {
         points.add(Point3D(x, y, z))
     }
 
-    fun build(parent: VisualObject?): Convex {
+    fun build(): Convex {
-        return Convex(parent, points)
+        return Convex(points)
     }
 }

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

@@ -1,27 +1,22 @@
 package hep.dataforge.vis.spatial
 
-import hep.dataforge.vis.common.VisualObject
-import kotlin.math.PI
-
 /**
  * A cylinder or cut cone segment
  */
 class Cylinder(
-    parent: VisualObject?,
+    var radius: Float,
-    var radius: Number,
+    var height: Float,
-    var height: Number,
+    var upperRadius: Float = radius,
-    var upperRadius: Number = radius,
+    var startAngle: Float = 0f,
-    var startAngle: Number = 0f,
+    var angle: Float = PI2
-    var angle: Number = 2 * PI
+) : VisualLeaf3D()
-) : VisualLeaf3D(parent)
 
-fun VisualGroup3D.cylinder(
+inline fun VisualGroup3D.cylinder(
     r: Number,
     height: Number,
     name: String? = null,
     block: Cylinder.() -> Unit = {}
-): Cylinder {
+): Cylinder = Cylinder(
-    val cylinder = Cylinder(this, r, height)
+    r.toFloat(),
-    cylinder.apply(block)
+    height.toFloat()
-    return cylinder.also { set(name, it) }
+).apply(block).also { set(name, it) }
-}

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

@@ -1,6 +1,5 @@
 package hep.dataforge.vis.spatial
 
-import hep.dataforge.vis.common.VisualObject
 import kotlin.math.PI
 import kotlin.math.cos
 import kotlin.math.sin
@@ -30,7 +29,7 @@ fun Shape2DBuilder.polygon(vertices: Int, radius: Number) {
 
 data class Layer(var x: Number, var y: Number, var z: Number, var scale: Number)
 
-class Extruded(parent: VisualObject?) : VisualLeaf3D(parent), Shape {
+class Extruded : VisualLeaf3D(), Shape {
 
     var shape: List<Point2D> = ArrayList()
 
@@ -98,4 +97,4 @@ class Extruded(parent: VisualObject?) : VisualLeaf3D(parent), Shape {
 }
 
 fun VisualGroup3D.extrude(name: String? = null, action: Extruded.() -> Unit = {}) =
-    Extruded(this).apply(action).also { set(name, it) }
+    Extruded().apply(action).also { set(name, it) }

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

@@ -0,0 +1,54 @@
+package hep.dataforge.vis.spatial
+
+import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.meta.MetaItem
+import hep.dataforge.names.Name
+import hep.dataforge.vis.common.AbstractVisualObject
+
+/**
+ * A proxy [VisualObject3D] to reuse a template object
+ */
+class Proxy(val templateName: Name) : AbstractVisualObject(), VisualObject3D {
+    override var position: Value3 = Value3()
+    override var rotation: Value3 = Value3()
+    override var scale: Value3 = Value3(1f, 1f, 1f)
+
+    val template by lazy { getTemplate() }
+
+    /**
+     * Recursively search for defined template in the parent
+     */
+    private fun getTemplate(): VisualObject3D {
+        return (parent as? VisualGroup3D)?.getTemplate(templateName)
+            ?: error("Template with name $templateName not found in $parent")
+    }
+
+
+    override fun getProperty(name: Name, inherit: Boolean): MetaItem<*>? {
+        return if (inherit) {
+            super.getProperty(name, false) ?: template.getProperty(name, false) ?: parent?.getProperty(name, inherit)
+        } else {
+            super.getProperty(name, false) ?: template.getProperty(name, false)
+        }
+    }
+
+    override fun MetaBuilder.updateMeta() {
+        //TODO add reference to child
+        updatePosition()
+    }
+}
+
+//fun VisualGroup3D.proxy(
+//    templateName: Name,
+//    //name: String? = null,
+//    builder: VisualGroup3D.() -> Unit
+//): Proxy {
+//    val template = getTemplate(templateName) ?: templates.builder()
+//    return Proxy(this, templateName).also { set(name, it) }
+//}
+
+inline fun VisualGroup3D.ref(
+    templateName: Name,
+    name: String? = null,
+    action: Proxy.() -> Unit = {}
+) = Proxy(templateName).apply(action).also { set(name, it) }

dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Proxy3D.kt

@@ -1,34 +0,0 @@
-package hep.dataforge.vis.spatial
-
-import hep.dataforge.meta.MetaBuilder
-import hep.dataforge.meta.MetaItem
-import hep.dataforge.names.Name
-import hep.dataforge.vis.common.AbstractVisualObject
-import hep.dataforge.vis.common.VisualObject
-
-/**
- * A proxy [VisualObject3D] to reuse a [template] object
- */
-class Proxy3D(parent: VisualObject?, val template: VisualObject3D) : AbstractVisualObject(parent), VisualObject3D {
-    override var position: Value3 = Value3()
-    override var rotation: Value3 = Value3()
-    override var scale: Value3 = Value3(1f, 1f, 1f)
-
-    override fun getProperty(name: Name, inherit: Boolean): MetaItem<*>? {
-        return if (inherit) {
-            super.getProperty(name, false) ?: template.getProperty(name, false) ?: parent?.getProperty(name, inherit)
-        } else {
-            super.getProperty(name, false) ?: template.getProperty(name, false)
-        }
-    }
-
-    override fun MetaBuilder.updateMeta() {
-        updatePosition()
-    }
-}
-
-inline fun VisualGroup3D.proxy(
-    template: VisualObject3D,
-    name: String? = null,
-    action: Proxy3D.() -> Unit = {}
-) = Proxy3D(this, template).apply(action).also { set(name, it) }

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

@@ -1,23 +1,23 @@
 package hep.dataforge.vis.spatial
 
-import hep.dataforge.vis.common.VisualObject
-import hep.dataforge.vis.common.number
 import kotlin.math.PI
 
-class Sphere(parent: VisualObject?, var radius: Number) : VisualLeaf3D(parent) {
+class Sphere(
-    var phiStart by number(0.0)
+    var radius: Float,
-    var phi by number(2 * PI)
+    var phiStart: Float = 0f,
-    var thetaStart by number(0.0)
+    var phi: Float = PI2,
-    var theta by number(PI)
+    var thetaStart: Float = 0f,
-}
+    var theta: Float = PI.toFloat()
+) : VisualLeaf3D()
 
-fun VisualGroup3D.sphere(
+inline fun VisualGroup3D.sphere(
     radius: Number,
     phi: Number = 2 * PI,
     theta: Number = PI,
     name: String? = null,
     action: Sphere.() -> Unit = {}
-) = Sphere(this, radius).apply(action).apply {
+) = Sphere(
-    this.phi = phi.toDouble()
+    radius.toFloat(),
-    this.theta = theta.toDouble()
+    phi = phi.toFloat(),
-}.also { set(name, it) }
+    theta = theta.toFloat()
+).apply(action).also { set(name, it) }

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

@@ -1,21 +1,19 @@
 package hep.dataforge.vis.spatial
 
-import hep.dataforge.vis.common.VisualObject
 import kotlin.math.PI
 import kotlin.math.cos
 import kotlin.math.sin
 
 /**
- * Stright tube segment
+ * Straight tube segment
  */
 class Tube(
-    parent: VisualObject?,
     var radius: Float,
     var height: Float,
     var innerRadius: Float = 0f,
     var startAngle: Float = 0f,
     var angle: Float = PI2
-) : VisualLeaf3D(parent), Shape {
+) : VisualLeaf3D(), Shape {
 
     init {
         require(radius > 0)
@@ -108,7 +106,7 @@ class Tube(
     }
 }
 
-fun VisualGroup3D.tube(
+inline fun VisualGroup3D.tube(
     r: Number,
     height: Number,
     innerRadius: Number = 0f,
@@ -116,9 +114,7 @@ fun VisualGroup3D.tube(
     angle: Number = 2 * PI,
     name: String? = null,
     block: Tube.() -> Unit = {}
-): Tube {
+): Tube = Tube(
-    val tube = Tube(
-        this,
     r.toFloat(),
     height.toFloat(),
     innerRadius.toFloat(),
@@ -126,6 +122,4 @@ fun VisualGroup3D.tube(
     angle.toFloat()
 ).apply(
     block
-    )
+).also { set(name, it) }
-    return tube.also { set(name, it) }
-}

dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Visual3DPlugin.kt

@@ -0,0 +1,40 @@
+package hep.dataforge.vis.spatial
+
+import hep.dataforge.context.AbstractPlugin
+import hep.dataforge.context.PluginFactory
+import hep.dataforge.context.PluginTag
+import hep.dataforge.meta.*
+import hep.dataforge.names.Name
+import hep.dataforge.vis.common.VisualPlugin
+import kotlin.reflect.KClass
+
+class Visual3DPlugin(meta: Meta) : AbstractPlugin(meta) {
+    override val tag: PluginTag get() = Companion.tag
+
+    override fun provideTop(target: String): Map<Name, Any> {
+        return if (target == VisualPlugin.VISUAL_FACTORY_TYPE) {
+            mapOf()
+        } else {
+            emptyMap()
+        }
+    }
+
+    companion object : PluginFactory<Visual3DPlugin> {
+        override val tag: PluginTag = PluginTag(name = "visual.spatial", group = PluginTag.DATAFORGE_GROUP)
+        override val type: KClass<out Visual3DPlugin> = Visual3DPlugin::class
+        override fun invoke(meta: Meta): Visual3DPlugin = Visual3DPlugin(meta)
+    }
+}
+
+internal fun VisualObject3D.update(meta: Meta) {
+    fun Meta.toVector(default: Float = 0f) = Value3(
+        this[VisualObject3D.x].float ?: default,
+        this[VisualObject3D.y].float ?: default,
+        this[VisualObject3D.z].float ?: default
+    )
+
+    meta[VisualObject3D.position].node?.toVector()?.let { position = it }
+    meta[VisualObject3D.rotation].node?.toVector()?.let { rotation = it }
+    meta[VisualObject3D.scale].node?.toVector(1f)?.let { scale = it }
+    meta["properties"].node?.let { configure(it) }
+}

dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/VisualObject3D.kt

@@ -1,6 +1,7 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.meta.*
+import hep.dataforge.names.Name
 import hep.dataforge.names.plus
 import hep.dataforge.output.Output
 import hep.dataforge.vis.common.AbstractVisualObject
@@ -61,18 +62,29 @@ interface VisualObject3D : VisualObject {
     }
 }
 
-abstract class VisualLeaf3D(parent: VisualObject?) : AbstractVisualObject(parent), VisualObject3D, Configurable {
+abstract class VisualLeaf3D : AbstractVisualObject(), VisualObject3D, Configurable {
     override var position: Value3 = Value3()
     override var rotation: Value3 = Value3()
     override var scale: Value3 = Value3(1f, 1f, 1f)
 }
 
-class VisualGroup3D(parent: VisualObject? = null) : VisualGroup<VisualObject3D>(parent), VisualObject3D, Configurable {
+class VisualGroup3D : VisualGroup<VisualObject3D>(), VisualObject3D, Configurable {
 
     override var position: Value3 = Value3()
     override var rotation: Value3 = Value3()
     override var scale: Value3 = Value3(1f, 1f, 1f)
 
+    /**
+     * A container for templates visible inside this group
+     */
+    var templates: VisualGroup3D? = null
+        set(value) {
+            value?.parent = this
+            field = value
+        }
+
+    fun getTemplate(name: Name): VisualObject3D? = templates?.get(name) ?: (parent as? VisualGroup3D)?.getTemplate(name)
+
     override fun MetaBuilder.updateMeta() {
         updatePosition()
         updateChildren()
@@ -80,7 +92,7 @@ class VisualGroup3D(parent: VisualObject? = null) : VisualGroup<VisualObject3D>(
 }
 
 fun VisualGroup3D.group(key: String? = null, action: VisualGroup3D.() -> Unit = {}): VisualGroup3D =
-    VisualGroup3D(this).apply(action).also { set(key, it) }
+    VisualGroup3D().apply(action).also { set(key, it) }
 
 fun Output<VisualObject3D>.render(meta: Meta = EmptyMeta, action: VisualGroup3D.() -> Unit) =
     render(VisualGroup3D().apply(action), meta)

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

@@ -10,7 +10,7 @@ import kotlin.test.assertEquals
 class ConvexTest {
     @Test
     fun testConvexBuilder() {
-        val group = VisualNode().apply {
+        val group = VisualGroup3D().apply {
             convex {
                 point(50, 50, -50)
                 point(50, -50, -50)
@@ -25,7 +25,7 @@ class ConvexTest {
 
         val convex = group.first() as Convex
 
-        val pointsNode = convex.config["points"].node
+        val pointsNode = convex.toMeta()["points"].node
 
         assertEquals(8, pointsNode?.items?.count())
         val points = pointsNode?.getAll("point".toName())

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

@@ -1,7 +1,6 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.vis.common.Colors
-import hep.dataforge.vis.common.color
 import kotlin.math.PI
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -9,7 +8,7 @@ import kotlin.test.assertEquals
 class GroupTest {
     @Test
     fun testGroupWithComposite(){
-        val group = VisualNode().apply{
+        val group = VisualGroup3D().apply{
             union {
                 box(100, 100, 100) {
                     z = 100
@@ -30,7 +29,7 @@ class GroupTest {
                 }
                 box(100, 100, 100)
                 y = 300
-                material(Colors.red)
+                color(Colors.red)
             }
             subtract{
                 box(100, 100, 100) {
@@ -40,7 +39,7 @@ class GroupTest {
                 }
                 box(100, 100, 100)
                 y = -300
-                material(Colors.blue)
+                color(Colors.blue)
             }
         }
 

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

@@ -0,0 +1,18 @@
+package hep.dataforge.vis.spatial
+
+import hep.dataforge.context.Global
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class SerializationTest {
+    @Test
+    fun testCubeSerialization(){
+        val cube = Box(null,100f,100f,100f).apply{
+            color(222)
+        }
+        val meta = cube.toMeta()
+        println(meta)
+        val newCube = Box(Global,null, meta)
+        assertEquals(cube,newCube)
+    }
+}

settings.gradle.kts

@@ -37,7 +37,8 @@ include(
     ":dataforge-vis-spatial-fx",
     ":dataforge-vis-spatial-js",
 //    ":dataforge-vis-jsroot",
-    ":dataforge-vis-spatial-gdml"
+    ":dataforge-vis-spatial-gdml",
+    ":spatial-js-demo"
 )
 
 //if(file("../dataforge-core").exists()) {

spatial-js-demo/build.gradle.kts

@@ -0,0 +1,19 @@
+plugins {
+    id("scientifik.js")
+    //id("kotlin-dce-js")
+}
+
+dependencies {
+    api(project(":dataforge-vis-spatial-js"))
+    api("info.laht.threekt:threejs-wrapper:0.106-npm-3")
+    testCompile(kotlin("test-js"))
+}
+
+//kotlin{
+//    sourceSets["main"].dependencies{
+//        implementation(npm("three","0.106.2"))
+//        implementation(npm("@hi-level/three-csg"))
+//        implementation(npm("style-loader"))
+//        implementation(npm("element-resize-event"))
+//    }
+//}