matrix() - CSS: Cascading Style Sheets
the constant values are implied and not passed as parameters; the other parameters are described in the column-major order. note: until firefox 16, gecko accepted a <length> value for tx and ty. matrix(a, b, c, d, tx, ty) values a b c d are <number>s describing the linear transformation. tx ty are <number>s describing the translation to apply. ...
... working draft initial definition ...

WebGL model view projection - Web APIs
0) + (4 * 1) + (1 * 0) var w = (2 * 0) + (3 * 0) + (4 * scalefactor) + (1 * scalefactor) the last line could be simplified to: w = (4 * scalefactor) + (1 * scalefactor) then factoring out the scalefactor, we get this: w = (4 + 1) * scalefactor which is exactly the same as the (z + 1) * scalefactor that we used in the previous example. in the box demo, an additional computesimpleprojectionmatrix() method is added. this is called in the draw() method and has the scale factor passed to it. the result should be identical to the last example: cubedemo.prototype.computesimpleprojectionmatrix = function(scalefactor) { this.transforms.projection = [ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, scalefactor, 0, 0, 0, scalefactor ]; }; although the result is identical, the important step here is in...
...is points away from the viewer and into the screen), while the convention in mathematics, physics and 3d modeling, as well as for the view/eye coordinate system in opengl, is to use a right-handed coordinate system (z-axis points out of the screen towards the viewer) . more on that in the relevant wikipedia articles: cartesian coordinate system, right-hand rule. let's take a look at a perspectivematrix() function, which computes the perspective projection matrix. mdn.perspectivematrix = function(fieldofviewinradians, aspectratio, near, far) { var f = 1.0 / math.tan(fieldofviewinradians / 2); var rangeinv = 1 / (near - far); return [ f / aspectratio, 0, 0, 0, 0, f, 0, 0, 0, 0, (near + far) * ra...
...p space, and should not be set to 0. farclippingplanedistance a positive number indicating the distance to the plane beyond which geometry is clipped away. this is mapped to 1 in clip space. this value should be kept reasonably close to the distance of the geometry in order to avoid precision errors creeping in while rendering. in the latest version of the box demo, the computesimpleprojectionmatrix() method has been replaced with the computeperspectivematrix() method. cubedemo.prototype.computeperspectivematrix = function() { var fieldofviewinradians = math.pi * 0.5; var aspectratio = window.innerwidth / window.innerheight; var nearclippingplanedistance = 1; var farclippingplanedistance = 50; this.transforms.projection = mdn.perspectivematrix( fieldofviewinradians, aspectr...
...And 2 more matches

CanvasPattern.setTransform() - Web APIs
sformation from an svgmatrix. the pattern gets applied if you set it as the current fillstyle and gets drawn onto the canvas when using the fillrect() method, for example. ...
...5)); ctx.fillstyle = pattern; ctx.fillrect(0, 0, 400, 400); };</textarea> var canvas = document.getelementbyid('canvas'); var ctx = canvas.getcontext('2d'); var textarea = document.getelementbyid('code'); var reset = document.getelementbyid('reset'); var edit = document.getelementbyid('edit'); var code = textarea.value; var svg1 = document.getelementbyid('svg1'); var matrix = svg1.createsvgmatrix(); function drawcanvas() { ctx.clearrect(0, 0, canvas.width, canvas.height); eval(textarea.value); } reset.addeventlistener('click', function() { textarea.value = code; drawcanvas(); }); edit.addeventlistener('click', function() { textarea.focus(); }) textarea.addeventlistener('input', drawcanvas); window.addeventlistener('load', drawcanvas); specifications specificatio...

DOMMatrix - Web APIs
properties this interface inherits properties from dommatrixreadonly, though some of these properties are altered to be mutable. ...
... a 2d matrix; if the array has 16 values, the result is a 3d matrix. otherwise, a typeerror exception is thrown. fromfloat64array() creates a new mutable dommatrix object given an array of double-precision (64-bit) floating-point values. if the array has six values, the result is a 2d matrix; if the array has 16 values, the result is a 3d matrix. otherwise, a typeerror exception is thrown. frommatrix() creates a new mutable dommatrix object given an existing matrix or a dommatrixinit dictionary which provides the values for its properties. usage notes the matrix defined by the dommatrix interface is comprised of four rows of four columns each. while it's beyond the scope of this article to explain the mathematics involved, this 4×4 size is enough to describe any transformation you might ap...

DOMMatrixReadOnly - Web APIs
ex") order. (in other words, down the first column from top to bottom, then the second column, and so forth.) dommatrixreadonly.tojson() returns a json representation of the dommatrixreadonly object. dommatrixreadonly.tostring() creates and returns a domstring object which contains a string representation of the matrix in css matrix syntax, using the appropriate css matrix notation. see the matrix() css function for details on this syntax. for a 2d matrix, the elements a through f are listed, for a total of six values and the form matrix(a, b, c, d, e, f). for a 3d matrix, the returned string contains all 16 elements and takes the form matrix3d(m11, m12, m13, m14, m21, m22, m23, m24, m31, m32, m33, m34, m41, m42, m43, m44). see the css matrix3d() function for details on the 3d notation'...
... a 2d matrix; if the array has 16 values, the result is a 3d matrix. otherwise, a typeerror exception is thrown. fromfloat64array() creates a new mutable dommatrix object given an array of double-precision (64-bit) floating-point values. if the array has six values, the result is a 2d matrix; if the array has 16 values, the result is a 3d matrix. otherwise, a typeerror exception is thrown. frommatrix() creates a new mutable dommatrix object given an existing matrix or a dommatrixinit dictionary which provides the values for its properties. if no matrix is specified, the matrix is initialized with every element set to 0 except the bottom-right corner and the element immediately above and to its left: m33 and m34. these have the default value of 1. specifications specification sta...

Index - Web APIs
es a location such as where an error occurred. returned by domerror.location. 718 dommatrix api, dommatrix, experimental, geometry, geometry interfaces, interface, reference, matrix the dommatrix interface represents 4x4 matrices, suitable for 2d and 3d operations including rotation and translation. it is a mutable version of the dommatrixreadonly interface. 719 dommatrix() api, constructor, experimental, geometry, geometry interfaces, reference, matrix the dommatrix constructor creates a new dommatrix object which represents 4x4 matrices, suitable for 2d and 3d operations.. 720 dommatrixreadonly 2d, 3d, api, computation, dommatrixreadonly, geometry, geometry interfaces, graphics, interface, math, modeling, read-only, reference, rotate, scal...
...r api, generic sensor api, interface, orientation sensor api, orientationsensor, reference, sensor, sensor apis, sensors the orientationsensor interface of the the sensor apis is the base class for orientation sensors. this interface cannot be used directly. instead it provides properties and methods accessed by interfaces that inherit from it. 2828 orientationsensor.populatematrix() api, generic sensor api, method, orientation sensor api, orientationsensor, reference, sensor, sensor apis, sensors, populatematrix() the populatematrix method of the orientationsensor interface populates the given target matrix with the rotation matrix based on the latest sensor reading. the rotation matrix is shown below. 2829 orientationsensor.quaternion api, generic ...

Path2D.addPath() - Web APIs
formation matrix for the path that is added. (technically a dommatrixinit object). examples adding a path to an existing path this example adds one path to another. html <canvas id="canvas"></canvas> javascript first, we create two separate path2d objects, each of which contains a rectangle made using the rect() method. we then create a matrix using document.createelementns() and createsvgmatrix(). we then add the second path to the first using addpath(), also applying the matrix to move the second path to the right. finally, we draw the first path (which now contains both rectangles) using fill(). const canvas = document.getelementbyid('canvas'); const ctx = canvas.getcontext('2d'); // create first path and add a rectangle let p1 = new path2d(); p1.rect(0, 0, 100, 150); // create secon...
... living standard initial defintion. ...

SVGSVGElement - Web APIs
ument trees. the object is initialized to 0 user units. svgsvgelement.createsvgangle() creates an svgangle object outside of any document trees. the object is initialized to a value of 0 degrees (unitless). svgsvgelement.createsvgpoint() creates an svgpoint object outside of any document trees. the object is initialized to the point (0,0) in the user coordinate system. svgsvgelement.createsvgmatrix() creates an svgmatrix object outside of any document trees. the object is initialized to the identity matrix. svgsvgelement.createsvgrect() creates an svgrect object outside of any document trees. the object is initialized such that all values are set to 0 user units. svgsvgelement.createsvgtransform() creates an svgtransform object outside of any document trees. the object is initialized to ...
...the identity matrix. svgsvgelement.createsvgrect() creates an svgrect object outside of any document trees. the object is initialized such that all values are set to 0 user units. svgsvgelement.createsvgtransform() creates an svgtransform object outside of any document trees. the object is initialized to an identity matrix transform (svg_transform_matrix). svgsvgelement.createsvgtransformfrommatrix() creates an svgtransform object outside of any document trees. the object is initialized to the given matrix transform (i.e., svg_transform_matrix). the values from the parameter matrix are copied, the matrix parameter is not adopted as svgtransform::matrix. svgsvgelement.getelementbyid() searches this svg document fragment (i.e., the search is restricted to a subset of the document tree) for a...

Movement, orientation, and motion: A WebXR example - Web APIs
del view matrix—the matrix to apply to the object to both rotate it for its animation purposes, but to also move and reorient it to simulate the viewer's motion through the space. then the view's normal matrix is computed by taking the model view matrix, inverting it, and transposing it (swapping its columns and rows). ...
... example are four calls to displaymatrix(), a function which displays the contents of a matrix for analysis by the user. the remainder of the function is identical or essentially identical to the older webgl sample from which this code is derived. displaying a matrix for instructive purposes, this example displays the contents of the important matrices used while rendering the scene. the displaymatrix() method is used for this; this function uses mathml to render the matrix, falling back to a more array-like format if mathml isn't supported by the user's browser. function displaymatrix(mat, rowlength, target) { let outhtml = ""; if (mat && rowlength && rowlength <= mat.length) { let numrows = mat.length / rowlength; outhtml = "<math xmlns='http://www.w3.org/1998/math/mathml' displa...

CSS3 - Archive of obsolete content
anging-punctuation properties. a few features present in early css text level 3 draft have being postponed to the next iteration of this module . css transforms level 1 working draft adds: the support of bi-dimensional transforms to be applied to any element using the css transform and transform-origin properties. the supported transforms are: matrix(), translate(), translatex(), translatey(), scale(), scalex(), scaley(), rotate(), skewx(), and skewy(). the support of tri-dimensional transforms to be applied to any element by adding the css transform-style, perspective, perspective-origin, and backface-visibility properties and extended the transform property with the following transforms are: matrix 3d(), translate3d(), translatez(), scal...

OrientationSensor - Web APIs
n instructions. interfaces based on orientationsensor below is a list of interfaces based on the orientationsensor interface. absoluteorientationsensor relativeorientationsensor properties orientationsensor.quaternion returns a four element array whose elements contain the components of the unit quaternion representing the device's orientation. methods orientationsensor.populatematrix() populates the given object with the rotation matrix based on the latest sensor reading. the rotation maxtrix is shown below. examples basic example the following example, which is loosely based on intel's orientation phone demo, instantiates an absoluteorientationsensor with a frequency of 60 times a second. on each reading it uses orientationsensor.quaternion to rotate a visual model of a ...

Viewpoints and viewers: Simulating cameras in WebXR - Web APIs
the position of the camera in space does not change, only the direction in which it's looking. and that direction does not change oth...

CSS reference - CSS: Cascading Style Sheets
style-typelocal()mmarginmargin-blockmargin-block-endmargin-block-startmargin-bottommargin-inlinemargin-inline-endmargin-inline-startmargin-leftmargin-rightmargin-top::markermarks (@page)maskmask-bordermask-border-modemask-border-outsetmask-border-repeatmask-border-slicemask-border-sourcemask-border-widthmask-clipmask-compositemask-imagemask-modemask-originmask-positionmask-repeatmask-sizemask-typematrix()matrix3d()max()max-block-sizemax-heightmax-height (@viewport)max-inline-sizemax-widthmax-width (@viewport)max-zoom (@viewport)@mediamin()min-block-sizemin-heightmin-height (@viewport)min-inline-sizemin-widthmin-width (@viewport)min-zoom (@viewport)minmax()mix-blend-modemmmsn@namespacenegative (@counter-style):not:nth-child:nth-last-child:nth-last-of-type:nth-of-type<number>oobject-fitobject-positi...