1 files changed, 114 insertions, 0 deletions
diff --git a/files/fa/web/api/canvasrenderingcontext2d/createlineargradient/index.html b/files/fa/web/api/canvasrenderingcontext2d/createlineargradient/index.html
new file mode 100644
index 0000000000..d7a1e1bde6
--- /dev/null
+++ b/files/fa/web/api/canvasrenderingcontext2d/createlineargradient/index.html
@@ -0,0 +1,114 @@
+---
+title: CanvasRenderingContext2D.createLinearGradient()
+slug: Web/API/CanvasRenderingContext2D/createLinearGradient
+translation_of: Web/API/CanvasRenderingContext2D/createLinearGradient
+---
+<div>{{APIRef}}</div>
+
+<p>The <code><strong>CanvasRenderingContext2D</strong></code><strong><code>.createLinearGradient()</code></strong> method of the Canvas 2D API creates a gradient along the line connecting two given coordinates.</p>
+
+<p><img alt="" src="https://mdn.mozillademos.org/files/14681/mdn-canvas-linearGradient.png" style="height: 121px; width: 264px;"></p>
+
+<p>This method returns a linear {{domxref("CanvasGradient")}}. To be applied to a shape, the gradient must first be assigned to the {{domxref("CanvasRenderingContext2D.fillStyle", "fillStyle")}} or {{domxref("CanvasRenderingContext2D.strokeStyle", "strokeStyle")}} properties.</p>
+
+<div class="note">
+<p><strong>Note:</strong> Gradient coordinates are global, i.e., relative to the current coordinate space. When applied to a shape, the coordinates are NOT relative to the shape's coordinates.</p>
+</div>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="syntaxbox">CanvasGradient <var>ctx</var>.createLinearGradient(<var>x0</var>, <var>y0</var>, <var>x1</var>, <var>y1</var>);
+</pre>
+
+<p>The <code>createLinearGradient()</code> method is specified by four parameters defining the start and end points of the gradient line.</p>
+
+<h3 id="Parameters">Parameters</h3>
+
+<dl>
+ <dt><code>x0</code></dt>
+ <dd>The x-axis coordinate of the start point.</dd>
+ <dt><code>y0</code></dt>
+ <dd>The y-axis coordinate of the start point.</dd>
+ <dt><code>x1</code></dt>
+ <dd>The x-axis coordinate of the end point.</dd>
+ <dt><code>y1</code></dt>
+ <dd>The y-axis coordinate of the end point.</dd>
+</dl>
+
+<h3 id="Return_value">Return value</h3>
+
+<dl>
+ <dt>{{domxref("CanvasGradient")}}</dt>
+ <dd>A linear <code>CanvasGradient</code> initialized with the specified line.</dd>
+</dl>
+
+<h2 id="Examples">Examples</h2>
+
+<h3 id="Filling_a_rectangle_with_a_linear_gradient">Filling a rectangle with a linear gradient</h3>
+
+<p>This example initializes a linear gradient using the <code>createLinearGradient()</code> method. Three color stops between the gradient's start and end points are then created. Finally, the gradient is assigned to the canvas context, and is rendered to a filled rectangle.</p>
+
+<h4 id="HTML">HTML</h4>
+
+<pre class="brush: html">&lt;canvas id="canvas"&gt;&lt;/canvas&gt;
+</pre>
+
+<h4 id="JavaScript">JavaScript</h4>
+
+<pre class="brush: js; highlight:[7]">var canvas = document.getElementById('canvas');
+var ctx = canvas.getContext('2d');
+
+// Create a linear gradient
+// The start gradient point is at x=20, y=0
+// The end gradient point is at x=220, y=0
+var gradient = ctx.createLinearGradient(20,0, 220,0);
+
+// Add three color stops
+gradient.addColorStop(0, 'green');
+gradient.addColorStop(.5, 'cyan');
+gradient.addColorStop(1, 'green');
+
+// Set the fill style and draw a rectangle
+ctx.fillStyle = gradient;
+ctx.fillRect(20, 20, 200, 100);
+</pre>
+
+<h4 id="Result">Result</h4>
+
+<p>{{ EmbedLiveSample('Filling_a_rectangle_with_a_linear_gradient', 700, 180) }}</p>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('HTML WHATWG', "scripting.html#dom-context-2d-createlineargradient", "CanvasRenderingContext2D.createLinearGradient")}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td></td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+
+
+<p>{{Compat("api.CanvasRenderingContext2D.createLinearGradient")}}</p>
+
+<h3 id="Gecko-specific_notes">Gecko-specific notes</h3>
+
+<ul>
+ <li>Starting with Gecko 2.0 {{geckoRelease("2.0")}}, specifying non-finite values now throws <code>NOT_SUPPORTED_ERR</code> instead of <code>SYNTAX_ERR</code>.</li>
+</ul>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li>The interface defining this method: {{domxref("CanvasRenderingContext2D")}}</li>
+ <li>{{domxref("CanvasRenderingContext2D.createRadialGradient()")}}</li>
+</ul>