diff --git a/package.json b/package.json
index 884f04a..656c483 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bim-fragment",
-  "version": "1.0.12",
+  "version": "1.0.13",
   "description": "3D BIM Geometry API",
   "main": "index.js",
   "scripts": {
@@ -9,7 +9,7 @@
     "build-examples": "rollup -c resources/rollup.config.mjs",
     "publish-repo": "cpy package.json dist && cd dist && npm publish",
     "create-flatbuffers": "cd src/flatbuffers && flatc.exe --ts fragment.fbs",
-    "regen-json": "cd src/flatbuffers && flatc.exe --json --raw-binary fragment.fbs -- example.bin"
+    "regen-json": "cd src/flatbuffers && flatc.exe --json --raw-binary fragment.fbs -- model.frag"
   },
   "repository": {
     "type": "git",
diff --git a/resources/openbim-components.js b/resources/openbim-components.js
index 4bb7d45..dd5542c 100644
--- a/resources/openbim-components.js
+++ b/resources/openbim-components.js
@@ -11541,15 +11541,15 @@ let FragmentsGroup$1 = class FragmentsGroup {
         const offset = this.bb.__offset(this.bb_pos, 4);
         return offset ? this.bb.__vector_len(this.bb_pos + offset) : 0;
     }
-    matrix(index) {
+    coordinationMatrix(index) {
         const offset = this.bb.__offset(this.bb_pos, 6);
         return offset ? this.bb.readFloat32(this.bb.__vector(this.bb_pos + offset) + index * 4) : 0;
     }
-    matrixLength() {
+    coordinationMatrixLength() {
         const offset = this.bb.__offset(this.bb_pos, 6);
         return offset ? this.bb.__vector_len(this.bb_pos + offset) : 0;
     }
-    matrixArray() {
+    coordinationMatrixArray() {
         const offset = this.bb.__offset(this.bb_pos, 6);
         return offset ? new Float32Array(this.bb.bytes().buffer, this.bb.bytes().byteOffset + this.bb.__vector(this.bb_pos + offset), this.bb.__vector_len(this.bb_pos + offset)) : null;
     }
@@ -11653,17 +11653,17 @@ let FragmentsGroup$1 = class FragmentsGroup {
     static startItemsVector(builder, numElems) {
         builder.startVector(4, numElems, 4);
     }
-    static addMatrix(builder, matrixOffset) {
-        builder.addFieldOffset(1, matrixOffset, 0);
+    static addCoordinationMatrix(builder, coordinationMatrixOffset) {
+        builder.addFieldOffset(1, coordinationMatrixOffset, 0);
     }
-    static createMatrixVector(builder, data) {
+    static createCoordinationMatrixVector(builder, data) {
         builder.startVector(4, data.length, 4);
         for (let i = data.length - 1; i >= 0; i--) {
             builder.addFloat32(data[i]);
         }
         return builder.endVector();
     }
-    static startMatrixVector(builder, numElems) {
+    static startCoordinationMatrixVector(builder, numElems) {
         builder.startVector(4, numElems, 4);
     }
     static addIds(builder, idsOffset) {
@@ -11759,10 +11759,10 @@ let FragmentsGroup$1 = class FragmentsGroup {
     static finishSizePrefixedFragmentsGroupBuffer(builder, offset) {
         builder.finish(offset, undefined, true);
     }
-    static createFragmentsGroup(builder, itemsOffset, matrixOffset, idsOffset, itemsKeysOffset, itemsKeysIndicesOffset, itemsRelsOffset, itemsRelsIndicesOffset, fragmentKeysOffset, idOffset, ifcNameOffset, ifcDescriptionOffset, ifcSchemaOffset, maxExpressId) {
+    static createFragmentsGroup(builder, itemsOffset, coordinationMatrixOffset, idsOffset, itemsKeysOffset, itemsKeysIndicesOffset, itemsRelsOffset, itemsRelsIndicesOffset, fragmentKeysOffset, idOffset, ifcNameOffset, ifcDescriptionOffset, ifcSchemaOffset, maxExpressId) {
         FragmentsGroup.startFragmentsGroup(builder);
         FragmentsGroup.addItems(builder, itemsOffset);
-        FragmentsGroup.addMatrix(builder, matrixOffset);
+        FragmentsGroup.addCoordinationMatrix(builder, coordinationMatrixOffset);
         FragmentsGroup.addIds(builder, idsOffset);
         FragmentsGroup.addItemsKeys(builder, itemsKeysOffset);
         FragmentsGroup.addItemsKeysIndices(builder, itemsKeysIndicesOffset);
@@ -11868,7 +11868,7 @@ class Serializer {
             items.push(exported);
         }
         const itemsVector = G.createItemsVector(builder, items);
-        const matrixVector = G.createMatrixVector(builder, group.coordinationMatrix.elements);
+        const matrixVector = G.createCoordinationMatrixVector(builder, group.coordinationMatrix.elements);
         let fragmentKeys = "";
         for (const key in group.keyFragments) {
             const fragmentID = group.keyFragments[key];
@@ -11921,7 +11921,7 @@ class Serializer {
         G.addItemsKeys(builder, keysVector);
         G.addItemsRelsIndices(builder, relsIVector);
         G.addItemsRels(builder, relsVector);
-        G.addMatrix(builder, matrixVector);
+        G.addCoordinationMatrix(builder, matrixVector);
         const result = FragmentsGroup$1.endFragmentsGroup(builder);
         builder.finish(result);
         return builder.asUint8Array();
@@ -12010,7 +12010,7 @@ class Serializer {
             schema: group.ifcSchema() || "",
             maxExpressId: group.maxExpressId() || 0,
         };
-        const matrixArray = group.matrixArray() || new Float32Array();
+        const matrixArray = group.coordinationMatrixArray() || new Float32Array();
         const ids = group.idsArray() || new Uint32Array();
         const keysIndices = group.itemsKeysIndicesArray() || new Uint32Array();
         const keysArray = group.itemsKeysArray() || new Uint32Array();
diff --git a/src/flatbuffers/fragment.fbs b/src/flatbuffers/fragment.fbs
index 1274c53..b75a6df 100644
--- a/src/flatbuffers/fragment.fbs
+++ b/src/flatbuffers/fragment.fbs
@@ -2,7 +2,7 @@ namespace Fragments.index;
 
 table FragmentsGroup {
     items: [Fragment];
-    matrix: [float];
+    coordination_matrix: [float];
     ids: [uint];
     items_keys: [uint];
     items_keys_indices: [uint];
diff --git a/src/flatbuffers/fragments/index/fragments-group.ts b/src/flatbuffers/fragments/index/fragments-group.ts
index 3396ff7..4585162 100644
--- a/src/flatbuffers/fragments/index/fragments-group.ts
+++ b/src/flatbuffers/fragments/index/fragments-group.ts
@@ -33,17 +33,17 @@ itemsLength():number {
   return offset ? this.bb!.__vector_len(this.bb_pos + offset) : 0;
 }
 
-matrix(index: number):number|null {
+coordinationMatrix(index: number):number|null {
   const offset = this.bb!.__offset(this.bb_pos, 6);
   return offset ? this.bb!.readFloat32(this.bb!.__vector(this.bb_pos + offset) + index * 4) : 0;
 }
 
-matrixLength():number {
+coordinationMatrixLength():number {
   const offset = this.bb!.__offset(this.bb_pos, 6);
   return offset ? this.bb!.__vector_len(this.bb_pos + offset) : 0;
 }
 
-matrixArray():Float32Array|null {
+coordinationMatrixArray():Float32Array|null {
   const offset = this.bb!.__offset(this.bb_pos, 6);
   return offset ? new Float32Array(this.bb!.bytes().buffer, this.bb!.bytes().byteOffset + this.bb!.__vector(this.bb_pos + offset), this.bb!.__vector_len(this.bb_pos + offset)) : null;
 }
@@ -183,16 +183,16 @@ static startItemsVector(builder:flatbuffers.Builder, numElems:number) {
   builder.startVector(4, numElems, 4);
 }
 
-static addMatrix(builder:flatbuffers.Builder, matrixOffset:flatbuffers.Offset) {
-  builder.addFieldOffset(1, matrixOffset, 0);
+static addCoordinationMatrix(builder:flatbuffers.Builder, coordinationMatrixOffset:flatbuffers.Offset) {
+  builder.addFieldOffset(1, coordinationMatrixOffset, 0);
 }
 
-static createMatrixVector(builder:flatbuffers.Builder, data:number[]|Float32Array):flatbuffers.Offset;
+static createCoordinationMatrixVector(builder:flatbuffers.Builder, data:number[]|Float32Array):flatbuffers.Offset;
 /**
  * @deprecated This Uint8Array overload will be removed in the future.
  */
-static createMatrixVector(builder:flatbuffers.Builder, data:number[]|Uint8Array):flatbuffers.Offset;
-static createMatrixVector(builder:flatbuffers.Builder, data:number[]|Float32Array|Uint8Array):flatbuffers.Offset {
+static createCoordinationMatrixVector(builder:flatbuffers.Builder, data:number[]|Uint8Array):flatbuffers.Offset;
+static createCoordinationMatrixVector(builder:flatbuffers.Builder, data:number[]|Float32Array|Uint8Array):flatbuffers.Offset {
   builder.startVector(4, data.length, 4);
   for (let i = data.length - 1; i >= 0; i--) {
     builder.addFloat32(data[i]!);
@@ -200,7 +200,7 @@ static createMatrixVector(builder:flatbuffers.Builder, data:number[]|Float32Arra
   return builder.endVector();
 }
 
-static startMatrixVector(builder:flatbuffers.Builder, numElems:number) {
+static startCoordinationMatrixVector(builder:flatbuffers.Builder, numElems:number) {
   builder.startVector(4, numElems, 4);
 }
 
@@ -346,10 +346,10 @@ static finishSizePrefixedFragmentsGroupBuffer(builder:flatbuffers.Builder, offse
   builder.finish(offset, undefined, true);
 }
 
-static createFragmentsGroup(builder:flatbuffers.Builder, itemsOffset:flatbuffers.Offset, matrixOffset:flatbuffers.Offset, idsOffset:flatbuffers.Offset, itemsKeysOffset:flatbuffers.Offset, itemsKeysIndicesOffset:flatbuffers.Offset, itemsRelsOffset:flatbuffers.Offset, itemsRelsIndicesOffset:flatbuffers.Offset, fragmentKeysOffset:flatbuffers.Offset, idOffset:flatbuffers.Offset, ifcNameOffset:flatbuffers.Offset, ifcDescriptionOffset:flatbuffers.Offset, ifcSchemaOffset:flatbuffers.Offset, maxExpressId:number):flatbuffers.Offset {
+static createFragmentsGroup(builder:flatbuffers.Builder, itemsOffset:flatbuffers.Offset, coordinationMatrixOffset:flatbuffers.Offset, idsOffset:flatbuffers.Offset, itemsKeysOffset:flatbuffers.Offset, itemsKeysIndicesOffset:flatbuffers.Offset, itemsRelsOffset:flatbuffers.Offset, itemsRelsIndicesOffset:flatbuffers.Offset, fragmentKeysOffset:flatbuffers.Offset, idOffset:flatbuffers.Offset, ifcNameOffset:flatbuffers.Offset, ifcDescriptionOffset:flatbuffers.Offset, ifcSchemaOffset:flatbuffers.Offset, maxExpressId:number):flatbuffers.Offset {
   FragmentsGroup.startFragmentsGroup(builder);
   FragmentsGroup.addItems(builder, itemsOffset);
-  FragmentsGroup.addMatrix(builder, matrixOffset);
+  FragmentsGroup.addCoordinationMatrix(builder, coordinationMatrixOffset);
   FragmentsGroup.addIds(builder, idsOffset);
   FragmentsGroup.addItemsKeys(builder, itemsKeysOffset);
   FragmentsGroup.addItemsKeysIndices(builder, itemsKeysIndicesOffset);
diff --git a/src/serializer.ts b/src/serializer.ts
index 7f54d68..a9009cf 100644
--- a/src/serializer.ts
+++ b/src/serializer.ts
@@ -78,7 +78,7 @@ export class Serializer {
 
     const itemsVector = G.createItemsVector(builder, items);
 
-    const matrixVector = G.createMatrixVector(
+    const matrixVector = G.createCoordinationMatrixVector(
       builder,
       group.coordinationMatrix.elements
     );
@@ -145,7 +145,7 @@ export class Serializer {
     G.addItemsKeys(builder, keysVector);
     G.addItemsRelsIndices(builder, relsIVector);
     G.addItemsRels(builder, relsVector);
-    G.addMatrix(builder, matrixVector);
+    G.addCoordinationMatrix(builder, matrixVector);
     const result = FB.FragmentsGroup.endFragmentsGroup(builder);
     builder.finish(result);
 
@@ -260,7 +260,7 @@ export class Serializer {
       maxExpressId: group.maxExpressId() || 0,
     };
 
-    const matrixArray = group.matrixArray() || new Float32Array();
+    const matrixArray = group.coordinationMatrixArray() || new Float32Array();
     const ids = group.idsArray() || new Uint32Array();
     const keysIndices = group.itemsKeysIndicesArray() || new Uint32Array();
     const keysArray = group.itemsKeysArray() || new Uint32Array();