part 18

explorations/Part_02/misc_scratch/linked/03_cube_geom_corrected.usd

@@ -39,6 +39,7 @@ def Xform "Cube"
         }
 
         "green" {
+            over "cubeMesh"
             {
                 rel material:binding = </Cube/Materials/myFlatGreen>
             }

explorations/Part_18/hello_ring/ring_v1.txt

@@ -0,0 +1,44 @@
+//
+//  Ring.swift
+//  
+//
+//  Created by Carlyn Maw on 7/25/23.
+//
+
+import Foundation
+
+public struct Ring {
+    public init(count:Int, radius:Int) {
+        self.count = count
+    }
+    let count:Int
+    let minTranslate = -4.0
+    let maxTranslate = 4.0
+    let minRadius = 0.8
+    let maxRadius = 2.0
+
+    let tau = Double.pi * 2
+
+    public func buildStage() -> Canvas3D {
+        let base_theta = tau/Double(count)
+        let color = 0.5
+        return Canvas3D {
+            Sphere(radius: 1.0).color(red: 0.18, green: 0.18, blue: 0.18)
+             for i in 0..<count {
+                 let theta = base_theta * Double(i)
+                 let x = cos(theta)
+                 let y = sin(theta)
+
+                 Sphere(radius: 1.0)
+                 .color(
+                     red: color,
+                     green: color,
+                     blue: color
+                 )
+                 //The ranges are all the same in this case.
+                 .translateBy(Vector(x: x, y: y, z: 0.0))
+             }
+        }
+    }
+
+}

explorations/Part_18/hello_ring/testsketch.txt

@@ -0,0 +1,73 @@
+//
+//  SketchPadCLI/testsketch.swift
+//
+//
+//  Created by Carlyn Maw on 7/11/25.
+//
+
+import Foundation
+import ArgumentParser
+import SketchPad
+
+
+extension SketchPadCLI {
+    struct testsketch:ParsableCommand {
+        @Flag(name: [.customLong("save"), .customShort("s")], help: "Will save to file called \"testsketch_$TIMESTAMP.usda\" instead of printing to stdout")
+        var saveToFile = false
+
+        @Option(name: [.customLong("output"), .customShort("o")], help: "Will save to custom path instead of printing to stdout")
+        var customPath:String? = nil
+
+        @Option(name: [.customLong("count"), .customShort("c")],
+                help: "Number of spheres to generate in addition to the blue origin sphere. Default is 12")
+        var count:Int = 18
+
+        @Option(name: [.customLong("radius"), .customShort("r")],
+                help: "Number of spheres to generate in addition to the blue origin sphere. Default is 12")
+        var radius:Int = 12
+
+
+        static var configuration =
+        CommandConfiguration(abstract: "Generate a USDA file that references sphere_base.usda like previous examples. 12 + blue origin ball is the default count")
+
+        func run() {
+            let stage = Ring(count:count, radius: 12).buildStage()
+            let fileBuilder_x3d = X3DFileBuilder()//USDAFileBuilder()
+            let fileString_x3d:String = fileBuilder_x3d.generateStringForStage(stage: stage)
+            let fileBuilder_usd = USDAFileBuilder()//USDAFileBuilder()
+            let fileString_usd:String = fileBuilder_usd.generateStringForStage(stage: stage)
+
+            if saveToFile || customPath != nil {
+                let timeStamp = FileIO.timeStamp()
+                let path = customPath ?? "testsketch_\(timeStamp).usda"
+                saveFile(fileString: fileString_usd, path: path)
+                let path_x3d = "testsketch_\(timeStamp).x3d"
+                saveFile(fileString: fileString_x3d, path: path_x3d)
+            } else {
+                print(fileString_usd)
+                print("------------------")
+                print(fileString_x3d)
+            }
+        }
+
+        func saveFile(fileString:String, path:String, ext:String? = nil) {
+            do {
+                guard let data:Data = fileString.data(using: .utf8) else {
+                    print("Could not encode string to data")
+                    return
+                }
+                var fullPath:String
+                if let ext {
+                    fullPath = "\(path).\(ext)"
+                } else {
+                    fullPath = path
+                }
+                try FileIO.writeToFile(data: data, filePath: fullPath)
+            } catch {
+                print("Could not write data to file: \(error)")
+            }
+        }
+    }
+
+
+}

explorations/Part_18/hello_ring/testsketch_20230725T085314.usda

@@ -0,0 +1,213 @@
+#usda 1.0
+(
+	metersPerUnit = 1
+	upAxis = "Y"
+	defaultPrim = "Sphere_59699"
+)
+def Xform "Sphere_59699"
+{
+	def Sphere "sphere_59699"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.18, 0.18, 0.18)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_45170"
+{
+	double3 xformOp:translate = (1.0, 0.0, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_45170"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_60450"
+{
+	double3 xformOp:translate = (0.9396926207859084, 0.3420201433256687, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_60450"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_73729"
+{
+	double3 xformOp:translate = (0.766044443118978, 0.6427876096865393, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_73729"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_98021"
+{
+	double3 xformOp:translate = (0.5000000000000001, 0.8660254037844386, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_98021"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_14599"
+{
+	double3 xformOp:translate = (0.17364817766693041, 0.984807753012208, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_14599"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_40284"
+{
+	double3 xformOp:translate = (-0.1736481776669303, 0.984807753012208, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_40284"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_78825"
+{
+	double3 xformOp:translate = (-0.49999999999999983, 0.8660254037844387, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_78825"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_73649"
+{
+	double3 xformOp:translate = (-0.7660444431189779, 0.6427876096865395, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_73649"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_80537"
+{
+	double3 xformOp:translate = (-0.9396926207859083, 0.3420201433256689, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_80537"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_48934"
+{
+	double3 xformOp:translate = (-1.0, 1.2246467991473532e-16, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_48934"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_38944"
+{
+	double3 xformOp:translate = (-0.9396926207859084, -0.34202014332566866, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_38944"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_96720"
+{
+	double3 xformOp:translate = (-0.766044443118978, -0.6427876096865393, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_96720"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_71870"
+{
+	double3 xformOp:translate = (-0.5000000000000004, -0.8660254037844384, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_71870"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_85226"
+{
+	double3 xformOp:translate = (-0.17364817766693033, -0.984807753012208, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_85226"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_13040"
+{
+	double3 xformOp:translate = (0.17364817766692997, -0.9848077530122081, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_13040"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_30100"
+{
+	double3 xformOp:translate = (0.5000000000000001, -0.8660254037844386, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_30100"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_72205"
+{
+	double3 xformOp:translate = (0.7660444431189778, -0.6427876096865396, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_72205"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}
+def Xform "Sphere_17832"
+{
+	double3 xformOp:translate = (0.9396926207859081, -0.34202014332566943, 0.0)
+	uniform token[] xformOpOrder = ["xformOp:translate"]
+	def Sphere "sphere_17832"
+	{
+		float3[] extent = [(-1.0, -1.0, -1.0), (1.0, 1.0, 1.0)]
+		color3f[] primvars:displayColor = [(0.5, 0.5, 0.5)]
+		double radius = 1.0
+	}
+}