diff --git a/src/Converter/textureConverter.js b/src/Converter/textureConverter.js
index 5455e9d96f..7dee2c674c 100644
--- a/src/Converter/textureConverter.js
+++ b/src/Converter/textureConverter.js
@@ -2,7 +2,7 @@ import * as THREE from 'three';
 import Feature2Texture from 'Converter/Feature2Texture';
 import Extent from 'Core/Geographic/Extent';
 
-const extentTexture = new Extent('EPSG:4326', [0, 0, 0, 0]);
+const extentTexture = new Extent('EPSG:4326');
 
 const textureLayer = (texture, layer) => {
     texture.generateMipmaps = false;
diff --git a/src/Core/Geographic/Extent.js b/src/Core/Geographic/Extent.js
index dce3334611..3599cbc71e 100644
--- a/src/Core/Geographic/Extent.js
+++ b/src/Core/Geographic/Extent.js
@@ -44,7 +44,7 @@ class Extent {
      * @param {number} [v2] south value
      * @param {number} [v3] north value
      */
-    constructor(crs, v0, v1, v2, v3) {
+    constructor(crs, v0 = 0, v1 = 0, v2 = 0, v3 = 0) {
         if (CRS.isGeocentric(crs)) {
             throw new Error(`${crs} is a geocentric projection, it doesn't make sense with a geographical extent`);
         }
@@ -76,7 +76,7 @@ class Extent {
      */
     as(crs, target) {
         CRS.isValid(crs);
-        target = target || new Extent('EPSG:4326', [0, 0, 0, 0]);
+        target = target || new Extent('EPSG:4326');
         if (this.crs != crs) {
             // Compute min/max in x/y by projecting 8 cardinal points,
             // and then taking the min/max of each coordinates.
@@ -272,7 +272,7 @@ class Extent {
      */
     intersect(extent) {
         if (!this.intersectsExtent(extent)) {
-            return new Extent(this.crs, 0, 0, 0, 0);
+            return new Extent(this.crs);
         }
         if (extent.crs != this.crs) {
             extent = extent.as(this.crs, _extent);
@@ -302,29 +302,18 @@ class Extent {
         if (v0 == undefined) {
             throw new Error('No values to set in the extent');
         }
-        if (v0.isExtent) {
-            v1 = v0.east;
-            v2 = v0.south;
-            v3 = v0.north;
-            v0 = v0.west;
-        }
-
-        if (v0.isCoordinates) {
-            // seem never used
-            this.west = v0.x;
-            this.east = v1.x;
-            this.south = v0.y;
-            this.north = v1.y;
-        } else if (v0.west !== undefined) {
-            this.west = v0.west;
-            this.east = v0.east;
-            this.south = v0.south;
-            this.north = v0.north;
+        if (v0.west !== undefined) {
+            console.warn(
+                'Deprecated Extent#constructor(string, Extent) and Extent#set(Extent),',
+                'use new Extent(string).setFromExtent(Extent) instead.',
+            );
+            this.setFromExtent(v0);
         } else if (v0.length == 4) {
-            this.west = v0[0];
-            this.east = v0[1];
-            this.south = v0[2];
-            this.north = v0[3];
+            console.warn(
+                'Deprecated Extent#constructor(string, number[]) and Extent#set(number[]),',
+                'use new Extent(string).setFromArray(number[]) instead.',
+            );
+            this.setFromArray(v0);
         } else if (v3 !== undefined) {
             this.west = v0;
             this.east = v1;
@@ -372,7 +361,7 @@ class Extent {
      */
     copy(extent) {
         this.crs = extent.crs;
-        return this.set(extent);
+        return this.setFromExtent(extent);
     }
 
     /**
@@ -463,7 +452,7 @@ class Extent {
             cNorthEast.setFromVector3(box.max).as(crs, cNorthEast).toVector3(box.max);
         }
 
-        return new Extent(crs, {
+        return new Extent(crs).setFromExtent({
             west: box.min.x,
             east: box.max.x,
             south: box.min.y,
@@ -576,6 +565,6 @@ class Extent {
     }
 }
 
-_extent = new Extent('EPSG:4326', [0, 0, 0, 0]);
+_extent = new Extent('EPSG:4326');
 
 export default Extent;
diff --git a/src/Core/Prefab/Planar/PlanarTileBuilder.ts b/src/Core/Prefab/Planar/PlanarTileBuilder.ts
index 30a18e7650..73ee75bf1c 100644
--- a/src/Core/Prefab/Planar/PlanarTileBuilder.ts
+++ b/src/Core/Prefab/Planar/PlanarTileBuilder.ts
@@ -97,7 +97,7 @@ export class PlanarTileBuilder implements TileBuilder<PlanarTileBuilderParams> {
         // the geometry in common extent is identical to the existing input
         // with a translation
         return {
-            shareableExtent: new Extent(extent.crs, {
+            shareableExtent: new Extent(extent.crs).setFromExtent({
                 west: 0,
                 east: Math.abs(extent.west - extent.east),
                 south: 0,
diff --git a/src/Core/Tile/Tile.js b/src/Core/Tile/Tile.js
index d0912b7c90..7be73427ca 100644
--- a/src/Core/Tile/Tile.js
+++ b/src/Core/Tile/Tile.js
@@ -18,8 +18,8 @@ function _rowColfromParent(/** @type {Tile} */ tile, /** @type {number} */ zoom)
     return r;
 }
 
-const _extent = new Extent('EPSG:4326', [0, 0, 0, 0]);
-const _extent2 = new Extent('EPSG:4326', [0, 0, 0, 0]);
+const _extent = new Extent('EPSG:4326');
+const _extent2 = new Extent('EPSG:4326');
 
 const _c = new Coordinates('EPSG:4326', 0, 0);
 
@@ -57,7 +57,7 @@ class Tile {
      */
     toExtent(crs, target) {
         CRS.isValid(crs);
-        target = target || new Extent('EPSG:4326', [0, 0, 0, 0]);
+        target = target || new Extent('EPSG:4326');
         const { epsg, globalExtent, globalDimension } = getInfoTms(this.crs);
         const countTiles = getCountTiles(this.crs, this.zoom);
 
diff --git a/src/Source/Source.js b/src/Source/Source.js
index 11c54b5f20..1e8f986c98 100644
--- a/src/Source/Source.js
+++ b/src/Source/Source.js
@@ -125,7 +125,7 @@ class Source extends InformationsData {
         this.whenReady = Promise.resolve();
         this._featuresCaches = {};
         if (source.extent && !(source.extent.isExtent)) {
-            this.extent = new Extent(this.crs, source.extent);
+            this.extent = new Extent(this.crs).setFromExtent(source.extent);
         } else {
             this.extent = source.extent;
         }
diff --git a/src/Source/WFSSource.js b/src/Source/WFSSource.js
index 5d2c771fa6..fa4154f051 100644
--- a/src/Source/WFSSource.js
+++ b/src/Source/WFSSource.js
@@ -2,7 +2,7 @@ import Source from 'Source/Source';
 import URLBuilder from 'Provider/URLBuilder';
 import Extent from 'Core/Geographic/Extent';
 
-const _extent = new Extent('EPSG:4326', [0, 0, 0, 0]);
+const _extent = new Extent('EPSG:4326');
 
 /**
  * An object defining the source of resources to get from a
diff --git a/src/Source/WMSSource.js b/src/Source/WMSSource.js
index 41dab478b1..26f483e488 100644
--- a/src/Source/WMSSource.js
+++ b/src/Source/WMSSource.js
@@ -3,7 +3,7 @@ import URLBuilder from 'Provider/URLBuilder';
 import Extent from 'Core/Geographic/Extent';
 import * as CRS from 'Core/Geographic/Crs';
 
-const _extent = new Extent('EPSG:4326', [0, 0, 0, 0]);
+const _extent = new Extent('EPSG:4326');
 
 /**
  * Proj provides an optional param to define axis order and orientation for a
diff --git a/test/unit/extent.js b/test/unit/extent.js
index 3bc50d1222..2f8c24eb87 100644
--- a/test/unit/extent.js
+++ b/test/unit/extent.js
@@ -14,29 +14,6 @@ describe('Extent', function () {
     const minZ = -50;
     const maxZ = 42;
 
-    it('should build the expected extent using Coordinates', function () {
-        const withCoords = new Extent('EPSG:4326',
-            new Coordinates('EPSG:4326', minX, minY),
-            new Coordinates('EPSG:4326', maxX, maxY));
-        assert.equal(minX, withCoords.west);
-        assert.equal(maxX, withCoords.east);
-        assert.equal(minY, withCoords.south);
-        assert.equal(maxY, withCoords.north);
-    });
-
-    it('should build the expected extent using keywords', function () {
-        const withKeywords = new Extent('EPSG:4326', {
-            south: minY,
-            east: maxX,
-            north: maxY,
-            west: minX,
-        });
-        assert.equal(minX, withKeywords.west);
-        assert.equal(maxX, withKeywords.east);
-        assert.equal(minY, withKeywords.south);
-        assert.equal(maxY, withKeywords.north);
-    });
-
     it('should build the expected extent using values', function () {
         const withValues = new Extent('EPSG:4326',
             minX,
@@ -49,14 +26,6 @@ describe('Extent', function () {
         assert.equal(maxY, withValues.north);
     });
 
-    it('should build the expected extent using Array', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
-        assert.equal(minX, withValues.west);
-        assert.equal(maxX, withValues.east);
-        assert.equal(minY, withValues.south);
-        assert.equal(maxY, withValues.north);
-    });
-
     it('should build the expected extent from box3', function () {
         const box = new Box3(
             new Vector3(Math.random(), Math.random()),
@@ -125,7 +94,7 @@ describe('Extent', function () {
     });
 
     it('should clone extent like expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
         const clonedExtent = withValues.clone();
         assert.equal(clonedExtent.west, withValues.west);
         assert.equal(clonedExtent.east, withValues.east);
@@ -134,7 +103,7 @@ describe('Extent', function () {
     });
 
     it('should convert extent EPSG:4326 like expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]).as('EPSG:3857');
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY).as('EPSG:3857');
         assert.equal(0, withValues.west);
         assert.equal(1113194.9079327357, withValues.east);
         assert.equal(-111325.14286638597, withValues.south);
@@ -142,33 +111,33 @@ describe('Extent', function () {
     });
 
     it('should return center of extent expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
         const center = withValues.center();
         assert.equal(5, center.longitude);
         assert.equal(1, center.latitude);
     });
     it('should return dimensions of extent expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
         const dimensions = withValues.planarDimensions();
         assert.equal(10, dimensions.x);
         assert.equal(4, dimensions.y);
     });
 
     it('should return true is point is inside extent expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
         const coord = new Coordinates('EPSG:4326', minX + 1, minY + 2);
         assert.ok(withValues.isPointInside(coord));
     });
 
     it('should return true is extent is inside extent expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
-        const inside = new Extent('EPSG:4326', [minX + 1, maxX - 1, minY + 1, maxY - 1]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
+        const inside = new Extent('EPSG:4326', minX + 1, maxX - 1, minY + 1, maxY - 1);
         assert.ok(withValues.isInside(inside, 1));
     });
 
     it('should return expected offset', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
-        const inside = new Extent('EPSG:4326', [minX + 1, maxX - 1, minY + 1, maxY - 1]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
+        const inside = new Extent('EPSG:4326', minX + 1, maxX - 1, minY + 1, maxY - 1);
         const offset = withValues.offsetToParent(inside);
         assert.equal(offset.x, -0.125);
         assert.equal(offset.y, -0.5);
@@ -177,14 +146,14 @@ describe('Extent', function () {
     });
 
     it('should return true if intersect other extent', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
-        const inter = new Extent('EPSG:4326', [minX + 1, maxX - 1, maxY - 1, maxY + 2]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
+        const inter = new Extent('EPSG:4326', minX + 1, maxX - 1, maxY - 1, maxY + 2);
         assert.ok(withValues.intersectsExtent(inter));
     });
 
     it('should intersect like expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
-        const extent = new Extent('EPSG:4326', [minX + 1, maxX - 1, maxY - 1, maxY + 2]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
+        const extent = new Extent('EPSG:4326', minX + 1, maxX - 1, maxY - 1, maxY + 2);
         const inter = withValues.intersect(extent);
         assert.equal(1, inter.west);
         assert.equal(9, inter.east);
@@ -193,7 +162,7 @@ describe('Extent', function () {
     });
 
     it('should set values', function () {
-        const withValues = new Extent('EPSG:4326', [0, 0, 0, 0]);
+        const withValues = new Extent('EPSG:4326');
         withValues.set(minX, maxX, minY, maxY);
         assert.equal(minX, withValues.west);
         assert.equal(maxX, withValues.east);
@@ -202,7 +171,7 @@ describe('Extent', function () {
     });
 
     it('should set values from array', function () {
-        const extent = new Extent('EPSG:4326', 0, 0, 0, 0);
+        const extent = new Extent('EPSG:4326');
         const array = [minX, maxX, minY, maxY, minZ, maxZ];
 
         extent.setFromArray(array);
@@ -219,7 +188,7 @@ describe('Extent', function () {
     });
 
     it('sould set values from an extent-like object', function () {
-        const extent = new Extent('EPSG:4326', 0, 0, 0, 0);
+        const extent = new Extent('EPSG:4326');
         extent.setFromExtent({
             west: minX,
             east: maxX,
@@ -233,8 +202,8 @@ describe('Extent', function () {
     });
 
     it('should copy extent', function () {
-        const toCopy = new Extent('EPSG:2154', [minX, maxX, minY, maxY]);
-        const withValues = new Extent('EPSG:4326', [0, 0, 0, 0]);
+        const toCopy = new Extent('EPSG:2154', minX, maxX, minY, maxY);
+        const withValues = new Extent('EPSG:4326');
         withValues.copy(toCopy);
         assert.equal('EPSG:2154', withValues.crs);
         assert.equal(minX, withValues.west);
@@ -244,8 +213,8 @@ describe('Extent', function () {
     });
 
     it('should union like expected', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
-        const extent = new Extent('EPSG:4326', [minX + 1, maxX - 1, maxY - 1, maxY + 2]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
+        const extent = new Extent('EPSG:4326', minX + 1, maxX - 1, maxY - 1, maxY + 2);
         withValues.union(extent);
         assert.equal(0, withValues.west);
         assert.equal(10, withValues.east);
@@ -254,7 +223,7 @@ describe('Extent', function () {
     });
 
     it('should expand by point', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
         const coord = new Coordinates('EPSG:4326', maxX + 1, maxY + 2);
         withValues.expandByCoordinates(coord);
         assert.equal(0, withValues.west);
@@ -264,7 +233,7 @@ describe('Extent', function () {
     });
 
     it('should convert EPSG extent values to string', function () {
-        const withValues = new Extent('EPSG:4326', [minX, maxX, minY, maxY]);
+        const withValues = new Extent('EPSG:4326', minX, maxX, minY, maxY);
         const tostring = withValues.toString(',');
         const toValues = tostring.split(',').map(s => Number(s));
         assert.equal(toValues[0], withValues.east);
@@ -274,8 +243,8 @@ describe('Extent', function () {
     });
 
     it('should copy and transform extent', function () {
-        const withValues = new Extent('EPSG:4326', [0, 0, 0, 0]);
-        const extent = new Extent('EPSG:4326', [minX + 1, maxX - 1, maxY - 1, maxY + 2]);
+        const withValues = new Extent('EPSG:4326', 0, 0, 0, 0);
+        const extent = new Extent('EPSG:4326', minX + 1, maxX - 1, maxY - 1, maxY + 2);
         const position = new Vector3(1, 2, 0);
         const scale = new Vector3(2, -2, 1);
         const quaternion = new Quaternion();