Resizable boxes and optimizations

build.gradle.kts

@@ -2,7 +2,7 @@ val dataforgeVersion by extra("0.1.4")
 
 plugins {
     val kotlinVersion = "1.3.50"
-    val toolsVersion = "0.2.1"
+    val toolsVersion = "0.2.2"
 
     kotlin("jvm") version kotlinVersion apply false
     id("kotlin-dce-js") version kotlinVersion apply false

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

@@ -1,7 +1,6 @@
 package hep.dataforge.vis.common
 
 import hep.dataforge.meta.Meta
-import hep.dataforge.meta.MetaBuilder
 import hep.dataforge.meta.MetaItem
 import hep.dataforge.names.*
 import kotlinx.serialization.Transient
@@ -145,17 +144,4 @@ abstract class AbstractVisualGroup : AbstractVisualObject(), MutableVisualGroup
     } else {
         set(key.asName(), child)
     }
-
-//    operator fun set(key: String?, child: VisualObject?) = set(key ?: "", child)
-
-    protected fun MetaBuilder.updateChildren() {
-        //adding named children
-        children.forEach {
-            "children[${it.key}]" put it.value.toMeta()
-        }
-    }
-
-    override fun MetaBuilder.updateMeta() {
-        updateChildren()
-    }
 }

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

@@ -82,14 +82,6 @@ abstract class AbstractVisualObject : VisualObject {
             properties?.get(name) ?: mergedStyles[name]
         }
     }
-
-    protected open fun MetaBuilder.updateMeta() {}
-
-    override fun toMeta(): Meta = buildMeta {
-        "type" putValue  this::class.simpleName
-        "properties" put properties
-        updateMeta()
-    }
 }
 
 fun VisualObject.findStyle(styleName: Name): Meta? {

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

@@ -3,7 +3,11 @@ package hep.dataforge.vis.spatial
 
 import hep.dataforge.context.Context
 import hep.dataforge.io.serialization.ConfigSerializer
-import hep.dataforge.meta.*
+import hep.dataforge.io.toMeta
+import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
+import hep.dataforge.meta.float
+import hep.dataforge.meta.get
 import hep.dataforge.vis.common.AbstractVisualObject
 import hep.dataforge.vis.common.VisualFactory
 import hep.dataforge.vis.common.VisualObject
@@ -27,9 +31,9 @@ class Box(
 
     //TODO add helper for color configuration
     override fun <T : Any> toGeometry(geometryBuilder: GeometryBuilder<T>) {
-        val dx = xSize.toFloat() / 2
+        val dx = xSize / 2
-        val dy = ySize.toFloat() / 2
+        val dy = ySize / 2
-        val dz = zSize.toFloat() / 2
+        val dz = zSize / 2
         val node1 = Point3D(-dx, -dy, -dz)
         val node2 = Point3D(dx, -dy, -dz)
         val node3 = Point3D(dx, dy, -dz)
@@ -46,16 +50,7 @@ class Box(
         geometryBuilder.face4(node8, node5, node6, node7)
     }
 
-    override fun MetaBuilder.updateMeta() {
+    override fun toMeta(): Meta  = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
-        "xSize" put xSize
-        "ySize" put ySize
-        "zSize" put ySize
-        updatePosition()
-    }
-
-//    override fun toMeta(): Meta {
-//        return (Visual3DPlugin.json.toJson(Box.serializer(), this) as JsonObject).toMeta()
-//    }
 
     companion object : VisualFactory<Box> {
         const val TYPE = "geometry.3d.box"

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

@@ -2,8 +2,9 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
-import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.meta.Meta
 import hep.dataforge.meta.update
 import hep.dataforge.vis.common.AbstractVisualObject
 import kotlinx.serialization.Serializable
@@ -34,12 +35,7 @@ class Composite(
     @Serializable(ConfigSerializer::class)
     override var properties: Config? = null
 
-    override fun MetaBuilder.updateMeta() {
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
-        "compositeType" put compositeType
-        "first" put first.toMeta()
-        "second" put second.toMeta()
-        updatePosition()
-    }
 }
 
 inline fun VisualGroup3D.composite(

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

@@ -3,7 +3,9 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
 import hep.dataforge.vis.common.AbstractVisualObject
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
@@ -26,6 +28,8 @@ class ConeSegment(
     override var position: Point3D? = null
     override var rotation: Point3D? = null
     override var scale: Point3D? = null
+
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
 }
 
 inline fun VisualGroup3D.cylinder(

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

@@ -3,8 +3,9 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
-import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.meta.Meta
 import hep.dataforge.vis.common.AbstractVisualObject
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
@@ -19,12 +20,7 @@ class Convex(val points: List<Point3D>) : AbstractVisualObject(), VisualObject3D
     override var rotation: Point3D? = null
     override var scale: Point3D? = null
 
-    override fun MetaBuilder.updateMeta() {
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
-        "points" put {
-            "point" put points.map { it.toMeta() }
-        }
-        updatePosition()
-    }
 
     companion object {
         const val TYPE = "geometry.3d.convex"

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

@@ -2,7 +2,9 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
 import hep.dataforge.vis.common.AbstractVisualObject
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
@@ -105,6 +107,8 @@ class Extruded(
         geometryBuilder.cap(layers.last())
     }
 
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
+
     companion object {
         const val TYPE = "geometry.3d.extruded"
     }

dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Material3D.kt

@@ -31,7 +31,7 @@ fun VisualObject.color(rgb: String) {
 
 fun VisualObject.color(rgb: Int) = color(Colors.rgbToString(rgb))
 
-fun VisualObject.color(r: UByte, g: UByte, b: UByte) = color( Colors.rgbToString(r,g,b))
+fun VisualObject.color(r: UByte, g: UByte, b: UByte) = color(Colors.rgbToString(r, g, b))
 
 var VisualObject.color: String?
     get() = getProperty(COLOR_KEY).string

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

@@ -3,7 +3,9 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
 import hep.dataforge.vis.common.AbstractVisualObject
 import hep.dataforge.vis.common.number
 import kotlinx.serialization.Serializable
@@ -20,6 +22,8 @@ class PolyLine(var points: List<Point3D>) : AbstractVisualObject(), VisualObject
 
     //var lineType by string()
     var thickness by number(1.0, key = "material.thickness")
+
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
 }
 
 fun VisualGroup3D.polyline(vararg points: Point3D, name: String = "", action: PolyLine.() -> Unit = {}) =

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

@@ -3,9 +3,12 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
-
 import hep.dataforge.io.serialization.NameSerializer
-import hep.dataforge.meta.*
+import hep.dataforge.io.toMeta
+import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
+import hep.dataforge.meta.MetaItem
+import hep.dataforge.meta.get
 import hep.dataforge.names.Name
 import hep.dataforge.names.NameToken
 import hep.dataforge.names.asName
@@ -61,10 +64,7 @@ class Proxy(val templateName: Name) : AbstractVisualObject(), VisualGroup, Visua
         }
     }
 
-    override fun MetaBuilder.updateMeta() {
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
-        //TODO add reference to child
-        updatePosition()
-    }
 
     override val children: Map<NameToken, ProxyChild>
         get() = (prototype as? MutableVisualGroup)?.children
@@ -94,6 +94,7 @@ class Proxy(val templateName: Name) : AbstractVisualObject(), VisualGroup, Visua
 
     //override fun findAllStyles(): Laminate = Laminate((styles + prototype.styles).mapNotNull { findStyle(it) })
 
+    @Serializable
     inner class ProxyChild(val name: Name) : AbstractVisualObject(), VisualGroup {
 
         val prototype: VisualObject by lazy {
@@ -143,6 +144,8 @@ class Proxy(val templateName: Name) : AbstractVisualObject(), VisualGroup, Visua
             }
         }
 
+        override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
+
     }
 
     companion object {

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

@@ -3,7 +3,9 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
 import hep.dataforge.vis.common.AbstractVisualObject
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
@@ -24,6 +26,8 @@ class Sphere(
     override var position: Point3D? = null
     override var rotation: Point3D? = null
     override var scale: Point3D? = null
+
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
 }
 
 inline fun VisualGroup3D.sphere(

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

@@ -2,7 +2,9 @@
 package hep.dataforge.vis.spatial
 
 import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
 import hep.dataforge.vis.common.AbstractVisualObject
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.UseSerializers
@@ -123,6 +125,8 @@ class Tube(
             }
         }
     }
+
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
 }
 
 inline fun VisualGroup3D.tube(

dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/VisualGroup3D.kt

@@ -11,10 +11,9 @@ package hep.dataforge.vis.spatial
 import hep.dataforge.io.serialization.ConfigSerializer
 import hep.dataforge.io.serialization.MetaSerializer
 import hep.dataforge.io.serialization.NameSerializer
+import hep.dataforge.io.toMeta
 import hep.dataforge.meta.Config
 import hep.dataforge.meta.Meta
-import hep.dataforge.meta.MetaBuilder
-import hep.dataforge.meta.set
 import hep.dataforge.names.Name
 import hep.dataforge.names.NameToken
 import hep.dataforge.names.asName
@@ -98,11 +97,7 @@ class VisualGroup3D : AbstractVisualGroup(), VisualObject3D {
         }
     }
 
-    override fun MetaBuilder.updateMeta() {
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
-        set(PROTOTYPES_KEY, prototypes?.toMeta())
-        updatePosition()
-        updateChildren()
-    }
 
     companion object {
         const val PROTOTYPES_KEY = "templates"

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

@@ -40,7 +40,7 @@ interface VisualObject3D : VisualObject {
         val LAYER_KEY = "layer".asName()
         val IGNORE_KEY = "ignore".asName()
 
-        val GEOMETRY_KEY = "geometey".asName()
+        val GEOMETRY_KEY = "geometry".asName()
 
         val x = "x".asName()
         val y = "y".asName()

dataforge-vis-spatial/src/jsMain/kotlin/hep/dataforge/vis/spatial/three/Materials.kt

@@ -1,96 +0,0 @@
-package hep.dataforge.vis.spatial.three
-
-import hep.dataforge.meta.*
-import hep.dataforge.values.ValueType
-import hep.dataforge.vis.common.Colors
-import hep.dataforge.vis.spatial.Material3D
-import info.laht.threekt.materials.LineBasicMaterial
-import info.laht.threekt.materials.Material
-import info.laht.threekt.materials.MeshBasicMaterial
-import info.laht.threekt.materials.MeshPhongMaterial
-import info.laht.threekt.math.Color
-
-
-object Materials {
-    val DEFAULT_COLOR = Color(Colors.darkgreen)
-    val DEFAULT = MeshPhongMaterial().apply {
-        color.set(DEFAULT_COLOR)
-    }
-    val DEFAULT_LINE_COLOR = Color(Colors.black)
-    val DEFAULT_LINE = LineBasicMaterial().apply {
-        color.set(DEFAULT_LINE_COLOR)
-    }
-
-
-    private val materialCache = HashMap<Meta, Material>()
-    private val lineMaterialCache = HashMap<Meta, Material>()
-
-    fun getMaterial(meta: Meta): Material = materialCache.getOrPut(meta) {
-        MeshBasicMaterial().apply {
-            color = meta["color"]?.color() ?: DEFAULT_COLOR
-            opacity = meta["opacity"]?.double ?: 1.0
-            transparent = meta["transparent"].boolean ?: (opacity < 1.0)
-            //node["specularColor"]?.let { specular = it.color() }
-            //side = 2
-        }
-    }
-
-    fun getLineMaterial(meta: Meta): Material = lineMaterialCache.getOrPut(meta) {
-        LineBasicMaterial().apply {
-            color = meta["color"]?.color() ?: DEFAULT_LINE_COLOR
-            opacity = meta["opacity"].double ?: 1.0
-            transparent = meta["transparent"].boolean ?: (opacity < 1.0)
-            linewidth = meta["thickness"].double ?: 1.0
-        }
-    }
-
-
-}
-
-/**
- * Infer color based on meta item
- */
-fun MetaItem<*>.color(): Color {
-    return when (this) {
-        is MetaItem.ValueItem -> if (this.value.type == ValueType.STRING) {
-            Color(this.value.string)
-        } else {
-            val int = value.number.toInt()
-//            val red = int and 0x00ff0000 shr 16
-//            val green = int and 0x0000ff00 shr 8
-//            val blue = int and 0x000000ff
-            Color(int)
-        }
-        is MetaItem.NodeItem -> {
-            Color(
-                node["red"]?.int ?: 0,
-                node["green"]?.int ?: 0,
-                node["blue"]?.int ?: 0
-            )
-        }
-    }
-}
-
-/**
- * Infer Three material based on meta item
- */
-fun Meta?.jsMaterial(): Material {
-    return if (this == null) {
-        Materials.DEFAULT
-    } else {
-        Materials.getMaterial(this)
-    }
-}
-
-fun Meta?.jsLineMaterial(): Material {
-    return if (this == null) {
-        Materials.DEFAULT_LINE
-    } else{
-        Materials.getLineMaterial(this)
-    }
-}
-
-
-fun Material3D?.jsMaterial(): Material = this?.config.jsMaterial()
-fun Material3D?.jsLineMaterial(): Material = this?.config.jsLineMaterial()
-

dataforge-vis-spatial/src/jsMain/kotlin/hep/dataforge/vis/spatial/three/MeshThreeFactory.kt

@@ -1,6 +1,8 @@
 package hep.dataforge.vis.spatial.three
 
+import hep.dataforge.meta.Meta
 import hep.dataforge.meta.boolean
+import hep.dataforge.meta.get
 import hep.dataforge.meta.node
 import hep.dataforge.names.asName
 import hep.dataforge.names.plus
@@ -8,10 +10,10 @@ import hep.dataforge.names.startsWith
 import hep.dataforge.vis.spatial.Material3D
 import hep.dataforge.vis.spatial.VisualObject3D
 import hep.dataforge.vis.spatial.layer
-import hep.dataforge.vis.spatial.material
 import info.laht.threekt.core.BufferGeometry
 import info.laht.threekt.geometries.EdgesGeometry
 import info.laht.threekt.geometries.WireframeGeometry
+import info.laht.threekt.materials.MeshBasicMaterial
 import info.laht.threekt.objects.LineSegments
 import info.laht.threekt.objects.Mesh
 import kotlin.reflect.KClass
@@ -28,47 +30,63 @@ abstract class MeshThreeFactory<in T : VisualObject3D>(
     abstract fun buildGeometry(obj: T): BufferGeometry
 
     private fun Mesh.applyEdges(obj: T) {
-        children.find { it.name == "edges" }?.let { remove(it) }
+        children.find { it.name == "edges" }?.let {
+            remove(it)
+            (it as LineSegments).dispose()
+        }
         //inherited edges definition, enabled by default
         if (obj.getProperty(EDGES_ENABLED_KEY).boolean != false) {
-            val material = obj.getProperty(EDGES_MATERIAL_KEY).node.jsLineMaterial()
+
+            val material = ThreeMaterials.getLineMaterial(obj.getProperty(EDGES_MATERIAL_KEY).node)
             add(
                 LineSegments(
                     EdgesGeometry(geometry as BufferGeometry),
                     material
-                )
+                ).apply {
+                    name = "edges"
+                }
             )
         }
     }
 
     private fun Mesh.applyWireFrame(obj: T) {
-        children.find { it.name == "wireframe" }?.let { remove(it) }
+        children.find { it.name == "wireframe" }?.let {
+            remove(it)
+            (it as LineSegments).dispose()
+        }
         //inherited wireframe definition, disabled by default
         if (obj.getProperty(WIREFRAME_ENABLED_KEY).boolean == true) {
-            val material = obj.getProperty(WIREFRAME_MATERIAL_KEY).node.jsLineMaterial()
+            val material = ThreeMaterials.getLineMaterial(obj.getProperty(WIREFRAME_MATERIAL_KEY).node)
             add(
                 LineSegments(
                     WireframeGeometry(geometry as BufferGeometry),
                     material
-                )
+                ).apply {
+                    name = "wireframe"
+                }
             )
         }
     }
 
     override fun invoke(obj: T): Mesh {
-        //TODO add caching for geometries using templates
         val geometry = buildGeometry(obj)
 
         //JS sometimes tries to pass Geometry as BufferGeometry
         @Suppress("USELESS_IS_CHECK") if (geometry !is BufferGeometry) error("BufferGeometry expected")
 
-        val mesh = Mesh(geometry, obj.material.jsMaterial()).apply {
+        val meshMeta: Meta = obj.properties[Material3D.MATERIAL_KEY]?.node ?: Meta.empty
+
+        val mesh = Mesh(geometry, MeshBasicMaterial()).apply {
             matrixAutoUpdate = false
             applyEdges(obj)
             applyWireFrame(obj)
+
             //set position for mesh
             updatePosition(obj)
 
+            //set color for mesh
+            updateMaterial(obj)
+
             layers.enable(obj.layer)
             children.forEach {
                 it.layers.enable(obj.layer)
@@ -78,7 +96,14 @@ abstract class MeshThreeFactory<in T : VisualObject3D>(
         //add listener to object properties
         obj.onPropertyChange(this) { name, _, _ ->
             when {
-                name.startsWith(VisualObject3D.GEOMETRY_KEY) -> mesh.geometry = buildGeometry(obj)
+                name.startsWith(VisualObject3D.GEOMETRY_KEY) -> {
+                    val oldGeometry = mesh.geometry as BufferGeometry
+                    val newGeometry = buildGeometry(obj)
+                    oldGeometry.attributes = newGeometry.attributes
+                    mesh.applyWireFrame(obj)
+                    mesh.applyEdges(obj)
+                    newGeometry.dispose()
+                }
                 name.startsWith(WIREFRAME_KEY) -> mesh.applyWireFrame(obj)
                 name.startsWith(EDGES_KEY) -> mesh.applyEdges(obj)
                 else -> mesh.updateProperty(obj, name)

dataforge-vis-spatial/src/jsMain/kotlin/hep/dataforge/vis/spatial/three/ThreeFactory.kt

@@ -55,8 +55,7 @@ operator fun <T : VisualObject3D> ThreeFactory<T>.invoke(obj: Any): Object3D {
  */
 fun Object3D.updateProperty(source: VisualObject, propertyName: Name) {
     if (this is Mesh && propertyName.startsWith(MATERIAL_KEY)) {
-        //updated material
+        updateMaterial(source)
-        material = source.material.jsMaterial()
     } else if (
         source is VisualObject3D &&
         (propertyName.startsWith(VisualObject3D.position)

dataforge-vis-spatial/src/jsMain/kotlin/hep/dataforge/vis/spatial/three/ThreeLineFactory.kt

@@ -1,8 +1,8 @@
 package hep.dataforge.vis.spatial.three
 
+import hep.dataforge.meta.node
 import hep.dataforge.vis.spatial.PolyLine
 import hep.dataforge.vis.spatial.layer
-import hep.dataforge.vis.spatial.material
 import info.laht.threekt.core.Geometry
 import info.laht.threekt.core.Object3D
 import info.laht.threekt.objects.LineSegments
@@ -16,7 +16,8 @@ object ThreeLineFactory : ThreeFactory<PolyLine> {
             vertices = obj.points.toTypedArray()
         }
 
-        val material = obj.material.jsLineMaterial()
+        val material =
+            ThreeMaterials.getLineMaterial(obj.getProperty(MeshThreeFactory.EDGES_MATERIAL_KEY).node)
         return LineSegments(geometry, material).apply {
 
             updatePosition(obj)

dataforge-vis-spatial/src/jsMain/kotlin/hep/dataforge/vis/spatial/three/ThreeMaterials.kt

@@ -0,0 +1,103 @@
+package hep.dataforge.vis.spatial.three
+
+import hep.dataforge.meta.*
+import hep.dataforge.values.ValueType
+import hep.dataforge.vis.common.Colors
+import hep.dataforge.vis.common.VisualObject
+import hep.dataforge.vis.spatial.Material3D
+import info.laht.threekt.materials.LineBasicMaterial
+import info.laht.threekt.materials.Material
+import info.laht.threekt.materials.MeshBasicMaterial
+import info.laht.threekt.materials.MeshPhongMaterial
+import info.laht.threekt.math.Color
+import info.laht.threekt.objects.Mesh
+
+
+object ThreeMaterials {
+    val DEFAULT_COLOR = Color(Colors.darkgreen)
+    val DEFAULT = MeshPhongMaterial().apply {
+        color.set(DEFAULT_COLOR)
+    }
+    val DEFAULT_LINE_COLOR = Color(Colors.black)
+    val DEFAULT_LINE = LineBasicMaterial().apply {
+        color.set(DEFAULT_LINE_COLOR)
+    }
+
+
+    //    private val materialCache = HashMap<Meta, Material>()
+    private val lineMaterialCache = HashMap<Meta?, Material>()
+
+
+//    fun buildMaterial(meta: Meta): Material =
+//        MeshBasicMaterial().apply {
+//            color = meta["color"]?.color() ?: DEFAULT_COLOR
+//            opacity = meta["opacity"]?.double ?: 1.0
+//            transparent = meta["transparent"].boolean ?: (opacity < 1.0)
+//            //node["specularColor"]?.let { specular = it.color() }
+//            //side = 2
+//        }
+
+    fun getLineMaterial(meta: Meta?): Material = lineMaterialCache.getOrPut(meta) {
+        LineBasicMaterial().apply {
+            color = meta["color"]?.color() ?: DEFAULT_LINE_COLOR
+            opacity = meta["opacity"].double ?: 1.0
+            transparent = meta["transparent"].boolean ?: (opacity < 1.0)
+            linewidth = meta["thickness"].double ?: 1.0
+        }
+    }
+
+}
+
+/**
+ * Infer color based on meta item
+ */
+fun MetaItem<*>.color(): Color {
+    return when (this) {
+        is MetaItem.ValueItem -> if (this.value.type == ValueType.STRING) {
+            Color(this.value.string)
+        } else {
+            val int = value.number.toInt()
+            Color(int)
+        }
+        is MetaItem.NodeItem -> {
+            Color(
+                node["red"]?.int ?: 0,
+                node["green"]?.int ?: 0,
+                node["blue"]?.int ?: 0
+            )
+        }
+    }
+}
+
+///**
+// * Infer Three material based on meta item
+// */
+//fun Meta?.jsMaterial(): Material {
+//    return if (this == null) {
+//        ThreeMaterials.DEFAULT
+//    } else {
+//        ThreeMaterials.buildMaterial(this)
+//    }
+//}
+//
+//fun Meta?.jsLineMaterial(): Material {
+//    return if (this == null) {
+//        ThreeMaterials.DEFAULT_LINE
+//    } else {
+//        ThreeMaterials.buildLineMaterial(this)
+//    }
+//}
+
+
+//fun Material3D?.jsMaterial(): Material = this?.config.jsMaterial()
+//fun Material3D?.jsLineMaterial(): Material = this?.config.jsLineMaterial()
+
+fun Mesh.updateMaterial(obj: VisualObject) {
+    val meta = obj.properties[Material3D.MATERIAL_KEY].node?:EmptyMeta
+    material = (material as? MeshBasicMaterial ?: MeshBasicMaterial()).apply {
+        color = meta["color"]?.color() ?: ThreeMaterials.DEFAULT_COLOR
+        opacity = meta["opacity"]?.double ?: 1.0
+        transparent = meta["transparent"].boolean ?: (opacity < 1.0)
+        needsUpdate = true
+    }
+}

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

@@ -36,6 +36,7 @@ class ThreePlugin : AbstractPlugin() {
 
     fun buildObject3D(obj: VisualObject3D): Object3D {
         return when (obj) {
+            is ThreeVisualObject -> obj.toObject3D()
             is Proxy -> proxyFactory(obj)
             is VisualGroup3D -> {
                 val group = ThreeGroup()
@@ -85,7 +86,7 @@ class ThreePlugin : AbstractPlugin() {
     companion object : PluginFactory<ThreePlugin> {
         override val tag = PluginTag("visual.three", PluginTag.DATAFORGE_GROUP)
         override val type = ThreePlugin::class
-        override fun invoke(meta: Meta,context: Context) = ThreePlugin()
+        override fun invoke(meta: Meta, context: Context) = ThreePlugin()
     }
 }
 

dataforge-vis-spatial/src/jsMain/kotlin/hep/dataforge/vis/spatial/three/ThreeVisualObject.kt

@@ -0,0 +1,39 @@
+@file:UseSerializers(Point3DSerializer::class)
+
+package hep.dataforge.vis.spatial.three
+
+import hep.dataforge.io.serialization.ConfigSerializer
+import hep.dataforge.io.toMeta
+import hep.dataforge.meta.Config
+import hep.dataforge.meta.Meta
+import hep.dataforge.vis.common.AbstractVisualObject
+import hep.dataforge.vis.spatial.Point3D
+import hep.dataforge.vis.spatial.Point3DSerializer
+import hep.dataforge.vis.spatial.Visual3DPlugin
+import hep.dataforge.vis.spatial.VisualObject3D
+import info.laht.threekt.core.Object3D
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.UseSerializers
+
+/**
+ * A custom visual object that has its own Three.js renderer
+ */
+interface ThreeVisualObject : VisualObject3D {
+    fun toObject3D(): Object3D
+}
+
+@Serializable
+class CustomThreeVisualObject(val threeFactory: ThreeFactory<VisualObject3D>) : AbstractVisualObject(),
+    ThreeVisualObject {
+    override var position: Point3D? = null
+    override var rotation: Point3D? = null
+    override var scale: Point3D? = null
+
+    @Serializable(ConfigSerializer::class)
+    override var properties: Config? = null
+
+    override fun toMeta(): Meta = Visual3DPlugin.json.toJson(serializer(), this).toMeta()
+
+    override fun toObject3D(): Object3D = threeFactory(this)
+
+}

dataforge-vis-spatial/src/jsMain/kotlin/hep/dataforge/vis/spatial/three/three.kt

@@ -5,12 +5,13 @@ import hep.dataforge.meta.float
 import hep.dataforge.meta.get
 import hep.dataforge.meta.node
 import hep.dataforge.vis.spatial.*
-import info.laht.threekt.core.BufferGeometry
+import info.laht.threekt.core.*
-import info.laht.threekt.core.Face3
+import info.laht.threekt.external.controls.OrbitControls
-import info.laht.threekt.core.Geometry
+import info.laht.threekt.materials.Material
-import info.laht.threekt.core.Object3D
 import info.laht.threekt.math.Euler
 import info.laht.threekt.math.Vector3
+import info.laht.threekt.objects.Mesh
+import info.laht.threekt.textures.Texture
 
 /**
  * Utility methods for three.kt.
@@ -65,3 +66,18 @@ fun CSG.toGeometry(): Geometry {
     geom.computeBoundingBox()
     return geom
 }
+
+internal fun Any.dispose() {
+    when (this) {
+        is Geometry -> dispose()
+        is BufferGeometry -> dispose()
+        is DirectGeometry -> dispose()
+        is Material -> dispose()
+        is Mesh -> {
+            geometry.dispose()
+            material.dispose()
+        }
+        is OrbitControls -> dispose()
+        is Texture -> dispose()
+    }
+}

spatial-js-demo/build.gradle.kts

@@ -7,3 +7,13 @@ dependencies {
     api(project(":dataforge-vis-spatial"))
     testCompile(kotlin("test-js"))
 }
+
+kotlin{
+    target {
+        browser{
+            webpackTask {
+                sourceMaps = false
+            }
+        }
+    }
+}

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

@@ -5,6 +5,8 @@ import hep.dataforge.js.Application
 import hep.dataforge.js.startApplication
 import hep.dataforge.vis.common.Colors
 import hep.dataforge.vis.spatial.*
+import hep.dataforge.vis.spatial.three.MeshThreeFactory.Companion.EDGES_ENABLED_KEY
+import hep.dataforge.vis.spatial.three.MeshThreeFactory.Companion.WIREFRAME_ENABLED_KEY
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.isActive
@@ -14,7 +16,6 @@ import kotlin.math.cos
 import kotlin.math.sin
 import kotlin.random.Random
 
-
 private class ThreeDemoApp : Application {
 
     override fun start(state: Map<String, Any>) {
@@ -143,6 +144,28 @@ private class ThreeDemoApp : Application {
                     }
                 }
             }
+
+            demo("dynamicBox", "Dancing boxes") {
+                val boxes = (-10..10).flatMap { i ->
+                    (-10..10).map { j ->
+                        varBox(10, 10, 0, name = "cell_${i}_${j}") {
+                            x = i * 10
+                            y = j * 10
+                            value = 128
+                            setProperty(EDGES_ENABLED_KEY, false)
+                            setProperty(WIREFRAME_ENABLED_KEY, false)
+                        }
+                    }
+                }
+                GlobalScope.launch {
+                    while (isActive) {
+                        delay(200)
+                        boxes.forEach { box ->
+                            box.value = (box.value + Random.nextInt(-15, 15)).coerceIn(0..255)
+                        }
+                    }
+                }
+            }
         }
 
 

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

@@ -0,0 +1,69 @@
+@file:UseSerializers(Point3DSerializer::class)
+
+package hep.dataforge.vis.spatial.demo
+
+import hep.dataforge.meta.int
+import hep.dataforge.meta.number
+import hep.dataforge.names.plus
+import hep.dataforge.vis.common.getProperty
+import hep.dataforge.vis.common.setProperty
+import hep.dataforge.vis.spatial.*
+import hep.dataforge.vis.spatial.VisualObject3D.Companion.GEOMETRY_KEY
+import hep.dataforge.vis.spatial.demo.VariableBoxThreeFactory.X_SIZE_KEY
+import hep.dataforge.vis.spatial.demo.VariableBoxThreeFactory.Y_SIZE_KEY
+import hep.dataforge.vis.spatial.demo.VariableBoxThreeFactory.Z_SIZE_KEY
+import hep.dataforge.vis.spatial.three.CustomThreeVisualObject
+import hep.dataforge.vis.spatial.three.MeshThreeFactory
+import info.laht.threekt.core.BufferGeometry
+import info.laht.threekt.geometries.BoxBufferGeometry
+import kotlinx.serialization.UseSerializers
+import kotlin.math.max
+
+private val BOX_Z_SIZE_KEY = GEOMETRY_KEY + "zSize"
+
+internal var VisualObject3D.variableZSize: Number
+    get() = getProperty(BOX_Z_SIZE_KEY, false).number ?: 0f
+    set(value) {
+        setProperty(BOX_Z_SIZE_KEY, value)
+    }
+
+internal var VisualObject3D.value: Int
+    get() = getProperty("value", false).int ?: 0
+    set(value) {
+        setProperty("value", value)
+        val size = value.toFloat() / 255f * 20f
+        variableZSize = size
+        z = -size / 2
+
+        val b = max(0, 255 - value)
+        val r = max(0, value - 255)
+        val g = 255 - b - r
+        color(r.toUByte(), g.toUByte(), b.toUByte())
+    }
+
+fun VisualGroup3D.varBox(
+    xSize: Number,
+    ySize: Number,
+    zSize: Number,
+    name: String = "",
+    action: VisualObject3D.() -> Unit = {}
+) = CustomThreeVisualObject(VariableBoxThreeFactory).apply {
+    setProperty(X_SIZE_KEY, xSize)
+    setProperty(Y_SIZE_KEY, ySize)
+    setProperty(Z_SIZE_KEY, zSize)
+}.apply(action).also { set(name, it) }
+
+private object VariableBoxThreeFactory : MeshThreeFactory<VisualObject3D>(VisualObject3D::class) {
+    val X_SIZE_KEY = GEOMETRY_KEY + "xSize"
+    val Y_SIZE_KEY = GEOMETRY_KEY + "ySize"
+    val Z_SIZE_KEY = GEOMETRY_KEY + "zSize"
+
+    override fun buildGeometry(obj: VisualObject3D): BufferGeometry {
+        val xSize = obj.getProperty(X_SIZE_KEY, false).number ?: 0f
+        val ySize = obj.getProperty(Y_SIZE_KEY, false).number ?: 0f
+        val zSize = obj.getProperty(Z_SIZE_KEY, false).number ?: 0f
+        return obj.detail?.let { detail ->
+            BoxBufferGeometry(xSize, ySize, zSize, detail, detail, detail)
+        } ?: BoxBufferGeometry(xSize, ySize, zSize)
+    }
+}