In this article, we are going to see how to set the default vertical scale of a canvas triangle using FabricJS. The canvas triangle means the triangle is movable and can be stretched according to requirement. Further, the triangle can be customized when it comes to initial stroke color, height, width, fill color, or stroke width.
To make it possible we are going to use a JavaScript library called FabricJS. After importing the library, we will create a canvas block in the body tag that will contain the triangle. After this, we will initialize instances of Canvas and Triangle provided by FabricJS and set default vertical scale of the triangle using scaleY property and render the Triangle on the Canvas as given in the below example.
Syntax:
fabric.Triangle({
width: number,
height: number,
scaleY: number
});
Parameters: This function accepts three parameters as mentioned above and described below:
- width: It specifies the width of triangle.
- height: It specifies the height of triangle.
- scaleY: It specifies the default vertical scale.
Example: This example uses FabricJS to set default vertical scale of a canvas triangle.
<!DOCTYPE html> <html> <head> <title> Fabric.js | Triangle scaleY Property </title> <!-- Adding the FabricJS library --> <script src= </script> </head> <body> <div style="text-align: center;width: 600px;"> <h1 style="color: green;"> neveropen </h1> <b> Fabric.js | Triangle scaleY Property </b> </div> <canvas id="canvas" width="600" height="300" style="border:1px solid #000000"> </canvas> <script> // Initiate a Canvas instance var canvas = new fabric.Canvas("canvas"); // Initiate a triangle instance var triangle = new fabric.Triangle({ width: 300, height: 150, fill: '', stroke: 'green', strokeWidth: 3, scaleY: 1.5 }); // Render the Triangle in canvas canvas.add(triangle); canvas.centerObject(triangle); </script> </body> </html> |
Output:
