From 3cdb11fe36e878e60d9b2a4fecb25ef8687415af Mon Sep 17 00:00:00 2001 From: Jonathan Puckey Date: Sun, 3 Mar 2013 19:47:32 +0100 Subject: [PATCH] GradientStop & PathItem example documentation. --- src/color/GradientStop.js | 19 +++++++++++----- src/path/PathItem.js | 47 ++++++++++++++++++++++++++------------- 2 files changed, 45 insertions(+), 21 deletions(-) diff --git a/src/color/GradientStop.js b/src/color/GradientStop.js index b99b665b..f878f406 100644 --- a/src/color/GradientStop.js +++ b/src/color/GradientStop.js @@ -22,7 +22,7 @@ var GradientStop = this.GradientStop = Base.extend(/** @lends GradientStop# */{ * * @param {Color} [color=new RgbColor(0, 0, 0)] the color of the stop * @param {Number} [rampPoint=0] the position of the stop on the gradient - * ramp {@default 0} + * ramp as a value between 0 and 1. */ initialize: function(arg0, arg1) { if (arg0) { @@ -82,22 +82,26 @@ var GradientStop = this.GradientStop = Base.extend(/** @lends GradientStop# */{ * // Create a circle shaped path at the center of the view, * // using 40% of the height of the view as its radius * // and fill it with a radial gradient color: - * var path = new Path.Circle(view.center, view.bounds.height * 0.4); - * + * var path = new Path.Circle({ + * center: view.center, + * radius: view.bounds.height * 0.4 + * }); + * * // Prepare the gradient color and apply it to the path: * var colors = [['yellow', 0.05], ['red', 0.2], ['black', 1]]; * var gradient = new RadialGradient(colors); * var from = path.position; * var to = path.bounds.rightCenter; * var gradientColor = new GradientColor(gradient, from, to); + * * path.fillColor = gradientColor; - * + * * // This function is called each frame of the animation: * function onFrame(event) { * var blackStop = gradient.stops[2]; * // Animate the rampPoint between 0.7 and 0.9: * blackStop.rampPoint = Math.sin(event.time * 5) * 0.1 + 0.8; - * + * * // Animate the rampPoint between 0.2 and 0.4 * var redStop = gradient.stops[1]; * redStop.rampPoint = Math.sin(event.time * 3) * 0.1 + 0.3; @@ -125,7 +129,10 @@ var GradientStop = this.GradientStop = Base.extend(/** @lends GradientStop# */{ * // Create a circle shaped path at the center of the view, * // using 40% of the height of the view as its radius * // and fill it with a radial gradient color: - * var path = new Path.Circle(view.center, view.bounds.height * 0.4); + * var path = new Path.Circle({ + * center: view.center, + * radius: view.bounds.height * 0.4 + * }); * * // Create a radial gradient that mixes red and black evenly: * var gradient = new RadialGradient('red', 'black'); diff --git a/src/path/PathItem.js b/src/path/PathItem.js index 002f1fea..660ba97f 100644 --- a/src/path/PathItem.js +++ b/src/path/PathItem.js @@ -22,13 +22,37 @@ var PathItem = this.PathItem = Item.extend(/** @lends PathItem# */{ /** - * Returns all interesections between two {@link PathItem} items as an array + * Returns all intersections between two {@link PathItem} items as an array * of {@link CurveLocation} objects. {@link CompoundPath} items are also * supported. * - * @param {PathItem} the other item to find the intersections to. + * @param {PathItem} path the other item to find the intersections to. * @return {CurveLocation[]} the locations of all intersection between the * paths + * @example {@paperscript} + * // Create a rectangular path with its top-left point at + * // {x: 30, y: 25} and a size of {width: 50, height: 50}: + * var path = new Path.Rectangle(new Point(30, 25), new Size(50, 50)); + * path.strokeColor = 'black'; + * + * var secondPath = path.clone(); + * var intersectionGroup = new Group(); + * + * function onFrame(event) { + * secondPath.rotate(3); + * + * var intersections = path.getIntersections(secondPath); + * intersectionGroup.removeChildren(); + * + * for (var i = 0; i < intersections.length; i++) { + * var intersectionPath = new Path.Circle({ + * center: intersections[i].point, + * radius: 4, + * fillColor: 'red' + * }); + * intersectionGroup.addChild(intersectionPath); + * } + * } */ getIntersections: function(path) { // First check the bounds of the two paths. If they don't intersect, @@ -242,34 +266,27 @@ var PathItem = this.PathItem = Item.extend(/** @lends PathItem# */{ * @param {Number} [parameter=0.5] * * @example {@paperscript height=300} - * // Interactive example. Click and drag in the view below: + * // Interactive example. Move your mouse around the view below: * * var myPath; - * function onMouseDrag(event) { + * function onMouseMove(event) { * // If we created a path before, remove it: * if (myPath) { - * myPath.remove(); + * myPath.remove(); * } - * + * * // Create a new path and add a segment point to it * // at {x: 150, y: 150): * myPath = new Path(); * myPath.add(150, 150); - * + * * // Draw a curve through the position of the mouse to 'toPoint' * var toPoint = new Point(350, 150); * myPath.curveTo(event.point, toPoint); - * + * * // Select the path, so we can see its segments: * myPath.selected = true; * } - * - * // When the mouse is released, deselect the path - * // and set its stroke-color to black: - * function onMouseUp(event) { - * myPath.selected = false; - * myPath.strokeColor = 'black'; - * } */ /**