From: wout Date: Sat, 30 Aug 2014 15:06:00 +0000 (+0200) Subject: Added animated parametric transformations X-Git-Tag: 2.0.0-rc.1~7 X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=bde8508836f9cad16b462c811d124258ca35400d;p=svg.js.git Added animated parametric transformations --- diff --git a/README.md b/README.md index 0a279fc..107170c 100755 --- a/README.md +++ b/README.md @@ -1135,12 +1135,34 @@ rect.attr('fill', null) ### transform() -The `transform()` method acts as a full getter without an argument. Basically it calls: + +The `transform()` method acts as a full getter without an argument: ```javascript -element.ctm().extract() +element.transform() ``` +The returned __`object`__ contains the following values: + +- `x` (translation on the x-axis) +- `y` (translation on the y-axis) +- `skewX` (calculated skew on x-axis) +- `skewY` (calculated skew on y-axis) +- `scaleX` (calculated scale on x-axis) +- `scaleY` (calculated scale on y-axis) +- `rotation` (calculated rotation) +- `cx` (last used rotation centre on x-axis) +- `cy` (last used rotation centre on y-axis) + +Additionally a string value for the required property can be passed: + +```javascript +element.transform('rotation') +``` + +In this case the returned value is a __`number`__. + + As a setter it has two ways of working. By default transformations are absolute. For example, if you call: ```javascript @@ -1170,7 +1192,11 @@ Available transformations are: - `skewY` with optional `cx` and `cy` - `x` - `y` -- `a`, `b`, `c`, `d`, `e` and/or `f` or an existing matrix of course +- `a`, `b`, `c`, `d`, `e` and/or `f` or an existing matrix instead of the object + +`getter`__`returns`: `value`__ + +`setter`__`returns`: `itself`__ ### style() With the `style()` method the `style` attribute can be managed like attributes with `attr`: @@ -1586,7 +1612,7 @@ This will return an instance of `SVG.BBox` containing the following values: - `height` (value from native `getBBox`) - `w` (shorthand for `width`) - `h` (shorthand for `height`) -- `x` (value from native `getBBox`) +- `x` (value from native `getBBox`) - `y` (value from native `getBBox`) - `cx` (center `x` of the bounding box) - `cy` (center `y` of the bounding box) @@ -3279,24 +3305,23 @@ matrix.toString() //-> returns matrix(1,0,0,1,0,0) ``` ### extract() -Gets the calculated values of the matrix: +Gets the calculated values of the matrix as an object: ```javascript matrix.extract() ``` -returns: -```javascript -{ - x: 0 -, y: 0 -, skewX: 0 -, skewY: 0 -, scaleX: 1 -, scaleY: 1 -, rotation: 0 -} -``` +The returned object contains the following values: + +- `x` (translation on the x-axis) +- `y` (translation on the y-axis) +- `skewX` (calculated skew on x-axis) +- `skewY` (calculated skew on y-axis) +- `scaleX` (calculated scale on x-axis) +- `scaleY` (calculated scale on y-axis) +- `rotation` (calculated rotation) +- `cx` (last used rotation centre on x-axis) +- `cy` (last used rotation centre on y-axis) __`returns`: `object`__ diff --git a/dist/svg.js b/dist/svg.js index f3e123c..56c493c 100755 --- a/dist/svg.js +++ b/dist/svg.js @@ -6,7 +6,7 @@ * @copyright Wout Fierens * @license MIT * -* BUILT: Fri Aug 29 2014 12:43:21 GMT+0200 (CEST) +* BUILT: Sat Aug 30 2014 16:27:39 GMT+0200 (CEST) */; (function(root, factory) { @@ -1337,15 +1337,34 @@ SVG.FX = SVG.invent({ // detect format if (a == 'transform') { + // merge given transformation with an existing one if (this.attrs[a]) v = this.attrs[a].destination.multiply(v) + // prepare matrix for morphing this.attrs[a] = this.target.ctm().morph(v) + + // add parametric rotation values + if (this.param) { + // get initial rotation + v = this.target.transform('rotation') + + // add param + this.attrs[a].param = { + from: this.target.param || { rotation: v, cx: this.param.cx, cy: this.param.cy } + , to: this.param + , initial: v + } + } + } else { this.attrs[a] = SVG.Color.isColor(v) ? + // prepare color for morphing new SVG.Color(from).morph(v) : SVG.regex.unit.test(v) ? + // prepare number for morphing new SVG.Number(from).morph(v) : + // prepare for plain morphing { from: from, to: v } } } @@ -1731,10 +1750,6 @@ SVG.Matrix = SVG.invent({ for (i = abcdef.length - 1; i >= 0; i--) this[abcdef[i]] = typeof source[abcdef[i]] === 'number' ? source[abcdef[i]] : base[abcdef[i]] - - // merge polymertic values - if (source._r) - this._r = source._r } // Add methods @@ -1769,10 +1784,6 @@ SVG.Matrix = SVG.invent({ // store new destination this.destination = new SVG.Matrix(matrix) - // detect polymetric rotation - if (this.destination._r) - this._r = this.extract() - return this } // Get morphed matrix at a given position @@ -1790,13 +1801,21 @@ SVG.Matrix = SVG.invent({ , f: this.f + (this.destination.f - this.f) * pos }) - // add polymetric rotation if required - if (this._r && this.destination._r) - matrix = matrix.rotate( - this._r.rotation + (this.destination._r.rotation - this._r.rotation) * pos - , this.destination._r.cx - , this.destination._r.cy - ) + // process parametric rotation if present + if (this.param && this.param.to) { + // calculate current parametric position + var param = { + rotation: this.param.from.rotation + (this.param.to.rotation - this.param.from.rotation) * pos + , cx: this.param.from.cx + , cy: this.param.from.cy + } + + // rotate matrix + matrix = matrix.rotate(param.rotation - this.param.initial, param.cx, param.cy) + + // store current parametric values + matrix.param = param + } return matrix } @@ -1872,11 +1891,7 @@ SVG.Matrix = SVG.invent({ } // Convert matrix to string , toString: function() { - return 'matrix(' + this.toArray().join() + ')' - } - // Convert matrix to array - , toArray: function() { - return [this.a, this.b, this.c, this.d, this.e, this.f] + return 'matrix(' + this.a + ',' + this.b + ',' + this.c + ',' + this.d + ',' + this.e + ',' + this.f + ')' } } @@ -1896,9 +1911,9 @@ SVG.Matrix = SVG.invent({ SVG.extend(SVG.Element, { // Set svg element attribute attr: function(a, v, n) { - // Act as full getter + // act as full getter if (a == null) { - // Get an object of attributes + // get an object of attributes a = {} v = this.node.attributes for (n = v.length - 1; n >= 0; n--) @@ -1907,15 +1922,15 @@ SVG.extend(SVG.Element, { return a } else if (typeof a == 'object') { - // Apply every attribute individually if an object is passed + // apply every attribute individually if an object is passed for (v in a) this.attr(v, a[v]) } else if (v === null) { - // Remove value + // remove value this.node.removeAttribute(a) } else if (v == null) { - // Act as a getter if the first and only argument is not an object + // act as a getter if the first and only argument is not an object v = this.node.getAttribute(a) return v == null ? SVG.defaults.attrs[a] : @@ -1923,13 +1938,13 @@ SVG.extend(SVG.Element, { parseFloat(v) : v } else { - // BUG FIX: some browsers will render a stroke if a color is given even though stroke width is 0 + // bUG FIX: some browsers will render a stroke if a color is given even though stroke width is 0 if (a == 'stroke-width') this.attr('stroke', parseFloat(v) > 0 ? this._stroke : null) else if (a == 'stroke') this._stroke = v - // Convert image fill and stroke to patterns + // convert image fill and stroke to patterns if (a == 'fill' || a == 'stroke') { if (SVG.regex.isImage.test(v)) v = this.doc().defs().image(v, 0, 0) @@ -1940,31 +1955,35 @@ SVG.extend(SVG.Element, { }) } - // Ensure correct numeric values (also accepts NaN and Infinity) + // ensure correct numeric values (also accepts NaN and Infinity) if (typeof v === 'number') v = new SVG.Number(v) - // Ensure full hex color + // ensure full hex color else if (SVG.Color.isColor(v)) v = new SVG.Color(v) - // Parse array values + // parse array values else if (Array.isArray(v)) v = new SVG.Array(v) - // If the passed attribute is leading... + // store parametric transformation values locally + else if (v instanceof SVG.Matrix && v.param) + this.param = v.param + + // if the passed attribute is leading... if (a == 'leading') { // ... call the leading method instead if (this.leading) this.leading(v) } else { - // Set given attribute on node + // set given attribute on node typeof n === 'string' ? this.node.setAttributeNS(n, a, v.toString()) : this.node.setAttribute(a, v.toString()) } - // Rebuild if required + // rebuild if required if (this.rebuild && (a == 'font-size' || a == 'x')) this.rebuild(a, v) } @@ -1977,17 +1996,27 @@ SVG.extend(SVG.Element, SVG.FX, { transform: function(o, relative) { // get target in case of the fx module, otherwise reference this var target = this.target || this + , matrix + + // act as a getter + if (typeof o !== 'object') { + // get current matrix + matrix = target.ctm().extract() + + // add parametric rotation + if (typeof this.param === 'object') { + matrix.rotation = this.param.rotation + matrix.cx = this.param.cx + matrix.cy = this.param.cy + } - // full getter - if (o == null) - return target.ctm().extract() - - // singular getter - else if (typeof o === 'string') - return target.ctm().extract()[o] + return typeof o === 'string' ? matrix[o] : matrix + } // get current matrix - var matrix = new SVG.Matrix(target) + matrix = this instanceof SVG.FX && this.attrs.transform ? + this.attrs.transform : + new SVG.Matrix(target) // ensure relative flag relative = !!relative || !!o.relative @@ -2002,13 +2031,21 @@ SVG.extend(SVG.Element, SVG.FX, { // act on rotation } else if (o.rotation != null) { - o.cx = o.cx == null ? target.bbox().cx : o.cx - o.cy = o.cy == null ? target.bbox().cy : o.cy + // ensure centre point + ensureCentre(o, target) - if (this instanceof SVG.FX) { - o.rotation -= (relative ? 0 : matrix.extract().rotation) - matrix._r = o - } else { + // relativize rotation value + if (relative) { + o.rotation += this.param && this.param.rotation != null ? + this.param.rotation : + matrix.extract().rotation + } + + // store parametric values + this.param = o + + // apply transformation + if (this instanceof SVG.Element) { matrix = relative ? // relative target.attr('transform', matrix + ' rotate(' + [o.rotation, o.cx, o.cy].join() + ')').ctm() : @@ -2018,10 +2055,12 @@ SVG.extend(SVG.Element, SVG.FX, { // act on scale } else if (o.scale != null || o.scaleX != null || o.scaleY != null) { + // ensure centre point + ensureCentre(o, target) + + // ensure scale values on both axes o.scaleX = o.scale != null ? o.scale : o.scaleX != null ? o.scaleX : 1 o.scaleY = o.scale != null ? o.scale : o.scaleY != null ? o.scaleY : 1 - o.cx = o.cx == null ? target.bbox().cx : o.cx - o.cy = o.cy == null ? target.bbox().cy : o.cy if (!relative) { // absolute; multiply inversed values @@ -2034,10 +2073,12 @@ SVG.extend(SVG.Element, SVG.FX, { // act on skew } else if (o.skewX != null || o.skewY != null) { + // ensure centre point + ensureCentre(o, target) + + // ensure skew values on both axes o.skewX = o.skewX != null ? o.skewX : 0 o.skewY = o.skewY != null ? o.skewY : 0 - o.cx = o.cx == null ? target.bbox().cx : o.cx - o.cy = o.cy == null ? target.bbox().cy : o.cy if (!relative) { // absolute; reset skew values @@ -4052,6 +4093,12 @@ function parseMatrix(matrix) { return matrix } +// Add centre point to transform object +function ensureCentre(o, target) { + o.cx = o.cx == null ? target.bbox().cx : o.cx + o.cy = o.cy == null ? target.bbox().cy : o.cy +} + // Convert string to matrix function stringToMatrix(source) { // remove matrix wrapper and split to individual numbers diff --git a/dist/svg.min.js b/dist/svg.min.js index 2b43d43..207f382 100755 --- a/dist/svg.min.js +++ b/dist/svg.min.js @@ -1,2 +1,2 @@ -/*! 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a/spec/spec/matrix.js b/spec/spec/matrix.js index 281cdb3..78fd2b9 100644 --- a/spec/spec/matrix.js +++ b/spec/spec/matrix.js @@ -47,12 +47,6 @@ describe('Matrix', function() { expect(matrix.toString()).toBe('matrix(1,0,0,1,0,0)') }) }) - - describe('toArray()' , function() { - it('exports correctly to an array', function() { - expect(matrix.toArray()).toEqual([1,0,0,1,0,0]) - }) - }) }) describe('with an element given', function() { @@ -102,12 +96,6 @@ describe('Matrix', function() { }) }) - - describe('toArray()' , function() { - it('exports correctly to a string', function() { - expect(matrix.toArray()).toEqual([matrix.a, matrix.b, matrix.c, matrix.d, matrix.e, matrix.f]) - }) - }) }) diff --git a/src/attr.js b/src/attr.js index d18cc90..2d57390 100644 --- a/src/attr.js +++ b/src/attr.js @@ -1,9 +1,9 @@ SVG.extend(SVG.Element, { // Set svg element attribute attr: function(a, v, n) { - // Act as full getter + // act as full getter if (a == null) { - // Get an object of attributes + // get an object of attributes a = {} v = this.node.attributes for (n = v.length - 1; n >= 0; n--) @@ -12,15 +12,15 @@ SVG.extend(SVG.Element, { return a } else if (typeof a == 'object') { - // Apply every attribute individually if an object is passed + // apply every attribute individually if an object is passed for (v in a) this.attr(v, a[v]) } else if (v === null) { - // Remove value + // remove value this.node.removeAttribute(a) } else if (v == null) { - // Act as a getter if the first and only argument is not an object + // act as a getter if the first and only argument is not an object v = this.node.getAttribute(a) return v == null ? SVG.defaults.attrs[a] : @@ -28,13 +28,13 @@ SVG.extend(SVG.Element, { parseFloat(v) : v } else { - // BUG FIX: some browsers will render a stroke if a color is given even though stroke width is 0 + // bUG FIX: some browsers will render a stroke if a color is given even though stroke width is 0 if (a == 'stroke-width') this.attr('stroke', parseFloat(v) > 0 ? this._stroke : null) else if (a == 'stroke') this._stroke = v - // Convert image fill and stroke to patterns + // convert image fill and stroke to patterns if (a == 'fill' || a == 'stroke') { if (SVG.regex.isImage.test(v)) v = this.doc().defs().image(v, 0, 0) @@ -45,31 +45,35 @@ SVG.extend(SVG.Element, { }) } - // Ensure correct numeric values (also accepts NaN and Infinity) + // ensure correct numeric values (also accepts NaN and Infinity) if (typeof v === 'number') v = new SVG.Number(v) - // Ensure full hex color + // ensure full hex color else if (SVG.Color.isColor(v)) v = new SVG.Color(v) - // Parse array values + // parse array values else if (Array.isArray(v)) v = new SVG.Array(v) - // If the passed attribute is leading... + // store parametric transformation values locally + else if (v instanceof SVG.Matrix && v.param) + this.param = v.param + + // if the passed attribute is leading... if (a == 'leading') { // ... call the leading method instead if (this.leading) this.leading(v) } else { - // Set given attribute on node + // set given attribute on node typeof n === 'string' ? this.node.setAttributeNS(n, a, v.toString()) : this.node.setAttribute(a, v.toString()) } - // Rebuild if required + // rebuild if required if (this.rebuild && (a == 'font-size' || a == 'x')) this.rebuild(a, v) } diff --git a/src/fx.js b/src/fx.js index 03e9317..03aec0f 100755 --- a/src/fx.js +++ b/src/fx.js @@ -223,15 +223,34 @@ SVG.FX = SVG.invent({ // detect format if (a == 'transform') { + // merge given transformation with an existing one if (this.attrs[a]) v = this.attrs[a].destination.multiply(v) + // prepare matrix for morphing this.attrs[a] = this.target.ctm().morph(v) + + // add parametric rotation values + if (this.param) { + // get initial rotation + v = this.target.transform('rotation') + + // add param + this.attrs[a].param = { + from: this.target.param || { rotation: v, cx: this.param.cx, cy: this.param.cy } + , to: this.param + , initial: v + } + } + } else { this.attrs[a] = SVG.Color.isColor(v) ? + // prepare color for morphing new SVG.Color(from).morph(v) : SVG.regex.unit.test(v) ? + // prepare number for morphing new SVG.Number(from).morph(v) : + // prepare for plain morphing { from: from, to: v } } } diff --git a/src/helpers.js b/src/helpers.js index 70f189f..3facb5d 100644 --- a/src/helpers.js +++ b/src/helpers.js @@ -60,6 +60,12 @@ function parseMatrix(matrix) { return matrix } +// Add centre point to transform object +function ensureCentre(o, target) { + o.cx = o.cx == null ? target.bbox().cx : o.cx + o.cy = o.cy == null ? target.bbox().cy : o.cy +} + // Convert string to matrix function stringToMatrix(source) { // remove matrix wrapper and split to individual numbers diff --git a/src/matrix.js b/src/matrix.js index 26b7613..4531457 100644 --- a/src/matrix.js +++ b/src/matrix.js @@ -17,10 +17,6 @@ SVG.Matrix = SVG.invent({ for (i = abcdef.length - 1; i >= 0; i--) this[abcdef[i]] = typeof source[abcdef[i]] === 'number' ? source[abcdef[i]] : base[abcdef[i]] - - // merge polymertic values - if (source._r) - this._r = source._r } // Add methods @@ -55,10 +51,6 @@ SVG.Matrix = SVG.invent({ // store new destination this.destination = new SVG.Matrix(matrix) - // detect polymetric rotation - if (this.destination._r) - this._r = this.extract() - return this } // Get morphed matrix at a given position @@ -76,13 +68,21 @@ SVG.Matrix = SVG.invent({ , f: this.f + (this.destination.f - this.f) * pos }) - // add polymetric rotation if required - if (this._r && this.destination._r) - matrix = matrix.rotate( - this._r.rotation + (this.destination._r.rotation - this._r.rotation) * pos - , this.destination._r.cx - , this.destination._r.cy - ) + // process parametric rotation if present + if (this.param && this.param.to) { + // calculate current parametric position + var param = { + rotation: this.param.from.rotation + (this.param.to.rotation - this.param.from.rotation) * pos + , cx: this.param.from.cx + , cy: this.param.from.cy + } + + // rotate matrix + matrix = matrix.rotate(param.rotation - this.param.initial, param.cx, param.cy) + + // store current parametric values + matrix.param = param + } return matrix } @@ -158,11 +158,7 @@ SVG.Matrix = SVG.invent({ } // Convert matrix to string , toString: function() { - return 'matrix(' + this.toArray().join() + ')' - } - // Convert matrix to array - , toArray: function() { - return [this.a, this.b, this.c, this.d, this.e, this.f] + return 'matrix(' + this.a + ',' + this.b + ',' + this.c + ',' + this.d + ',' + this.e + ',' + this.f + ')' } } diff --git a/src/transform.js b/src/transform.js index c4f8f70..43bfb1b 100644 --- a/src/transform.js +++ b/src/transform.js @@ -3,17 +3,27 @@ SVG.extend(SVG.Element, SVG.FX, { transform: function(o, relative) { // get target in case of the fx module, otherwise reference this var target = this.target || this + , matrix - // full getter - if (o == null) - return target.ctm().extract() + // act as a getter + if (typeof o !== 'object') { + // get current matrix + matrix = target.ctm().extract() - // singular getter - else if (typeof o === 'string') - return target.ctm().extract()[o] + // add parametric rotation + if (typeof this.param === 'object') { + matrix.rotation = this.param.rotation + matrix.cx = this.param.cx + matrix.cy = this.param.cy + } + + return typeof o === 'string' ? matrix[o] : matrix + } // get current matrix - var matrix = new SVG.Matrix(target) + matrix = this instanceof SVG.FX && this.attrs.transform ? + this.attrs.transform : + new SVG.Matrix(target) // ensure relative flag relative = !!relative || !!o.relative @@ -28,13 +38,21 @@ SVG.extend(SVG.Element, SVG.FX, { // act on rotation } else if (o.rotation != null) { - o.cx = o.cx == null ? target.bbox().cx : o.cx - o.cy = o.cy == null ? target.bbox().cy : o.cy + // ensure centre point + ensureCentre(o, target) - if (this instanceof SVG.FX) { - o.rotation -= (relative ? 0 : matrix.extract().rotation) - matrix._r = o - } else { + // relativize rotation value + if (relative) { + o.rotation += this.param && this.param.rotation != null ? + this.param.rotation : + matrix.extract().rotation + } + + // store parametric values + this.param = o + + // apply transformation + if (this instanceof SVG.Element) { matrix = relative ? // relative target.attr('transform', matrix + ' rotate(' + [o.rotation, o.cx, o.cy].join() + ')').ctm() : @@ -44,10 +62,12 @@ SVG.extend(SVG.Element, SVG.FX, { // act on scale } else if (o.scale != null || o.scaleX != null || o.scaleY != null) { + // ensure centre point + ensureCentre(o, target) + + // ensure scale values on both axes o.scaleX = o.scale != null ? o.scale : o.scaleX != null ? o.scaleX : 1 o.scaleY = o.scale != null ? o.scale : o.scaleY != null ? o.scaleY : 1 - o.cx = o.cx == null ? target.bbox().cx : o.cx - o.cy = o.cy == null ? target.bbox().cy : o.cy if (!relative) { // absolute; multiply inversed values @@ -60,10 +80,12 @@ SVG.extend(SVG.Element, SVG.FX, { // act on skew } else if (o.skewX != null || o.skewY != null) { + // ensure centre point + ensureCentre(o, target) + + // ensure skew values on both axes o.skewX = o.skewX != null ? o.skewX : 0 o.skewY = o.skewY != null ? o.skewY : 0 - o.cx = o.cx == null ? target.bbox().cx : o.cx - o.cy = o.cy == null ? target.bbox().cy : o.cy if (!relative) { // absolute; reset skew values