diff --git a/modules/math/vectorFactory.ts b/modules/math/vectorFactory.ts
index dc94614d..b0f3f42f 100644
--- a/modules/math/vectorFactory.ts
+++ b/modules/math/vectorFactory.ts
@@ -5,7 +5,7 @@ export default class VectorFactory {
 
   vectors: Vector[];
 
-  constructor(tolerance) {
+  constructor() {
     this.vectors = [];
   }
 
@@ -24,7 +24,7 @@ export default class VectorFactory {
     return null;
   }
 
-  create(x, y, z, onExistent): Vector {
+  create(x, y, z, onExistent?): Vector {
     let vector = this.find(x, y, z);
     if (vector === null) {
       vector = new Vector(x, y, z);
diff --git a/modules/ui/components/Row.jsx b/modules/ui/components/Row.jsx
index 7ee45324..18df31d6 100644
--- a/modules/ui/components/Row.jsx
+++ b/modules/ui/components/Row.jsx
@@ -2,6 +2,6 @@ import React from 'react';
 import ls from './Row.less';
 import cx from 'classnames';
 
-export default function Row({className, props, children}) {
+export default function Row({className, children, ...props}) {
   return <div className={cx(ls.root, className)} {...props} >{children}</div>;
 }
\ No newline at end of file
diff --git a/web/app/cad/sketch/sketchModel.ts b/web/app/cad/sketch/sketchModel.ts
index 2d1278c4..1d4b3da3 100644
--- a/web/app/cad/sketch/sketchModel.ts
+++ b/web/app/cad/sketch/sketchModel.ts
@@ -11,7 +11,7 @@ import {OCCCommandInterface} from "cad/craft/e0/occCommandInterface";
 
 const RESOLUTION = 20;
 
-class SketchPrimitive {
+export class SketchPrimitive {
 
   id: string;
   inverted: boolean;
@@ -195,6 +195,11 @@ export class Arc extends SketchPrimitive {
 }
 
 export class BezierCurve extends SketchPrimitive {
+  a: Vector;
+  b: Vector;
+  cp1: Vector;
+  cp2: Vector;
+
   constructor(id, a, b, cp1, cp2) {
     super(id);
     this.a = a;
@@ -209,6 +214,14 @@ export class BezierCurve extends SketchPrimitive {
 }
 
 export class EllipticalArc extends SketchPrimitive {
+
+  c: Vector;
+  rx: number;
+  ry: number;
+  rot: number
+  a: Vector;
+  b: Vector;
+
   constructor(id, c, rx, ry, rot, a, b) {
     super(id);
     this.c = c;
@@ -266,6 +279,12 @@ export class Circle extends SketchPrimitive {
 }
 
 export class Ellipse extends SketchPrimitive {
+
+  c: Vector;
+  rx: number;
+  ry: number;
+  rot: number
+
   constructor(id, c, rx, ry, rot) {
     super(id);
     this.c = c;
@@ -345,21 +364,6 @@ export class Contour {
   }
 }
 
-class CompositeCurve {
-
-  constructor() {
-    this.curves = [];
-    this.points = [];
-    this.groups = [];
-  }
-
-  add(curve, point, group) {
-    this.curves.push(curve);
-    this.points.push(point);
-    this.groups.push(group);
-  }
-}
-
 function adjustEnds(arc, a, b) {
   let data = arc.asNurbs();
 
diff --git a/web/app/cad/sketch/sketchReader.ts b/web/app/cad/sketch/sketchReader.ts
index 8b0e78e6..5a13bdde 100644
--- a/web/app/cad/sketch/sketchReader.ts
+++ b/web/app/cad/sketch/sketchReader.ts
@@ -5,14 +5,15 @@ import Joints from 'gems/joints';
 import sketchObjectGlobalId from './sketchObjectGlobalId';
 import VectorFactory from 'math/vectorFactory';
 import {strictEqual2D} from "math/equality";
-import {Contour, Segment} from "./sketchModel";
+import {Contour, Segment, SketchPrimitive} from "./sketchModel";
+import Vector from "math/vector";
 
 export class SketchGeom {
 
-  private connections: Segment[];
-  private loops: Segment[];
-  private constructionSegments: Segment[];
-  private _contours: Contour[];
+  connections: SketchPrimitive[];
+  loops: SketchPrimitive[];
+  constructionSegments: SketchPrimitive[];
+  _contours: Contour[];
 
   constructor() {
     this.connections = [];
@@ -31,20 +32,6 @@ export class SketchGeom {
   get contours(): Contour[] {
     return this.fetchContours();
   }
-
-  findById(id) {
-    function _find() {
-      for (let arr of arguments) {
-        for (let segment of arr) {
-          if (segment.id === id) {
-            return segment;
-          }
-        }
-      }
-      return null;
-    }
-    return _find(this.connections, this.loops, this.constructionSegments);
-  }
   
   getAllObjects() {
     return [...this.connections, ...this.loops, ...this.constructionSegments];
@@ -69,7 +56,7 @@ export function ReadSketch(sketch, sketchId, readConstructionSegments) {
   }
   let vectorFactory = new VectorFactory();
   let pointsById = new Map();
-  function ReadSketchPoint(pt) {
+  function ReadSketchPoint(pt): Vector {
     return vectorFactory.create(pt.x, pt.y, 0);
   }
   if (sketch.version !== 3) {