demo/playground/src/jvmMain/kotlin/gdmCurve.kt

@@ -5,6 +5,8 @@ import space.kscience.gdml.*
 import space.kscience.visionforge.gdml.toVision
 import space.kscience.visionforge.html.ResourceLocation
 import space.kscience.visionforge.solid.Solids
+import space.kscience.visionforge.solid.color
+import space.kscience.visionforge.solid.invoke
 import space.kscience.visionforge.visible
 import java.nio.file.Path
 
@@ -229,8 +231,12 @@ fun main() {
                     if(solid.name == "world"){
                         visible = false
                     }
-                    //make all solids semi-transparent
-                    transparent()
+                    if(solid.name.startsWith("gas")){
+                        color("green")
+                    } else {
+                        //make all solids semi-transparent
+                        transparent()
+                    }
                 }
             }
         }

ui/ring/src/main/kotlin/space.kscience.visionforge.ring/ThreeWithControls.kt

@@ -16,7 +16,7 @@ import space.kscience.visionforge.solid.three.ThreePlugin
 import kotlin.reflect.KClass
 
 public class ThreeWithControls : AbstractPlugin(), ElementVisionRenderer {
-    public val three by require(ThreePlugin)
+    public val three: ThreePlugin by require(ThreePlugin)
 
     override val tag: PluginTag get() = Companion.tag
 

visionforge-core/src/commonMain/kotlin/space/kscience/visionforge/VisionBase.kt

@@ -32,12 +32,10 @@ internal data class PropertyListener(
 @SerialName("vision")
 public open class VisionBase(
     internal var properties: Config? = null,
+    @Transient override var parent: VisionGroup? = null,
     @Transient public val coroutineScope: CoroutineScope = GlobalScope,
 ) : Vision {
 
-    @Transient
-    override var parent: VisionGroup? = null
-
     @Synchronized
     protected fun getOrCreateConfig(): Config {
         if (properties == null) {

visionforge-gdml/src/commonMain/kotlin/space/kscience/visionforge/gdml/GdmlTransformerEnv.kt

@@ -160,20 +160,20 @@ private class GdmlTransformerEnv(val settings: GdmlTransformer) {
     ): T = apply {
         newPos?.let {
             val point = Point3D(it.x(settings.lUnit), it.y(settings.lUnit), it.z(settings.lUnit))
-            if (position != null || point != Point3D.ZERO) {
+            if (point != Point3D.ZERO) {
                 position = point
             }
         }
         newRotation?.let {
             val point = Point3D(it.x(settings.aUnit), it.y(settings.aUnit), it.z(settings.aUnit))
-            if (rotation != null || point != Point3D.ZERO) {
+            if (point != Point3D.ZERO) {
                 rotation = point
             }
             //this@withPosition.rotationOrder = RotationOrder.ZXY
         }
         newScale?.let {
             val point = Point3D(it.x, it.y, it.z)
-            if (scale != null || point != Point3D.ONE) {
+            if (point != Point3D.ONE) {
                 scale = point
             }
         }

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/Composite.kt

@@ -3,7 +3,6 @@ package space.kscience.visionforge.solid
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 import space.kscience.dataforge.meta.update
-import space.kscience.dataforge.names.NameToken
 import space.kscience.visionforge.*
 
 public enum class CompositeType {
@@ -18,15 +17,15 @@ public class Composite(
     public val compositeType: CompositeType,
     public val first: Solid,
     public val second: Solid,
-) : SolidBase(), Solid, VisionGroup {
-
-    init {
-        first.parent = this
-        second.parent = this
-    }
-
-    override val children: Map<NameToken, Vision>
-        get() = mapOf(NameToken("first") to first, NameToken("second") to second)
+) : SolidBase(), Solid {
+//
+//    init {
+//        first.parent = this
+//        second.parent = this
+//    }
+//
+//    override val children: Map<NameToken, Vision>
+//        get() = mapOf(NameToken("first") to first, NameToken("second") to second)
 }
 
 @VisionBuilder

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidBase.kt

@@ -12,15 +12,13 @@ import space.kscience.visionforge.VisionChange
 
 @Serializable
 @SerialName("solid")
-public open class SolidBase : VisionBase(), Solid {
+public open class SolidBase(
+    override var position: Point3D? = null,
+    override var rotation: Point3D? = null,
+    override var scale: Point3D? = null,
+) : VisionBase(), Solid {
     override val descriptor: NodeDescriptor get() = Solid.descriptor
 
-    override var position: Point3D? = null
-
-    override var rotation: Point3D? = null
-
-    override var scale: Point3D? = null
-
     override fun update(change: VisionChange) {
         updatePosition(change.properties)
         super.update(change)

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/SolidGroup.kt

@@ -29,6 +29,9 @@ public interface PrototypeHolder {
 @SerialName("group.solid")
 public class SolidGroup(
     @Serializable(PrototypeSerializer::class) internal var prototypes: MutableVisionGroup? = null,
+    override var position: Point3D? = null,
+    override var rotation: Point3D? = null,
+    override var scale: Point3D? = null,
 ) : VisionGroupBase(), Solid, PrototypeHolder {
 
     init {
@@ -53,12 +56,6 @@ public class SolidGroup(
         }).run(builder)
     }
 
-    override var position: Point3D? = null
-
-    override var rotation: Point3D? = null
-
-    override var scale: Point3D? = null
-
 //    /**
 //     * TODO add special static group to hold statics without propagation
 //     */

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/Solids.kt

@@ -54,6 +54,7 @@ public class Solids(meta: Meta) : VisionPlugin(meta) {
         }
 
         internal val jsonForSolids: Json = Json(VisionManager.defaultJson) {
+            encodeDefaults = false
             serializersModule = serializersModuleForSolids
         }
 

visionforge-solid/src/commonMain/kotlin/space/kscience/visionforge/solid/specifications/Canvas3DOptions.kt

@@ -9,6 +9,15 @@ import space.kscience.visionforge.scheme
 import space.kscience.visionforge.value
 import space.kscience.visionforge.widgetType
 
+public class ClippingPlane: Scheme(){
+    public var x: Double by double(0.0)
+    public var y: Double by double(0.0)
+    public var z: Double by double(0.0)
+
+    public companion object: SchemeSpec<ClippingPlane>(::ClippingPlane)
+}
+
+
 public class Canvas3DOptions : Scheme() {
     public var axes: Axes by spec(Axes)
     public var light: Light by spec(Light)
@@ -25,6 +34,8 @@ public class Canvas3DOptions : Scheme() {
 
     public var layers: List<Number> by numberList(0)
 
+    //public var clippingPlanes: List<ClippingPlane> by list
+
     public var onSelect: ((Name?) -> Unit)? = null
 
 

visionforge-threejs/src/main/kotlin/space/kscience/visionforge/solid/three/ThreeCanvas.kt

@@ -11,6 +11,7 @@ import info.laht.threekt.geometries.EdgesGeometry
 import info.laht.threekt.helpers.AxesHelper
 import info.laht.threekt.lights.AmbientLight
 import info.laht.threekt.materials.LineBasicMaterial
+import info.laht.threekt.math.Box3
 import info.laht.threekt.math.Vector2
 import info.laht.threekt.objects.LineSegments
 import info.laht.threekt.objects.Mesh
@@ -43,7 +44,13 @@ public class ThreeCanvas(
     public val three: ThreePlugin,
     public val options: Canvas3DOptions,
 ) {
+
+    private var boundingBox: Box3? = null
     private var root: Object3D? = null
+        set(value) {
+            field = value
+            if (value != null) boundingBox = Box3().setFromObject(value)
+        }
 
     private val raycaster = Raycaster()
     private val mousePosition: Vector2 = Vector2()
@@ -84,7 +91,7 @@ public class ThreeCanvas(
             (0..31).forEach {
                 if (it in selectedLayers) {
                     this@apply.layers.enable(it)
-                } else{
+                } else {
                     this@apply.layers.disable(it)
                 }
             }