In this article, we are going to see how to set the minimum scale limit of a canvas triangle using FabricJS so that size cannot be scaled-down than that limit. 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 minimum scale limit of the triangle using minScaleLimit property and render the Triangle on the Canvas as given in the below example.
Syntax:
fabric.Triangle({
width: number,
height: number,
minScaleLimit: 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.
- minScaleLimit: It specifies the minimum scale limit.
Example: This example uses FabricJS to set the minimum scale limit of a canvas triangle.
<!DOCTYPE html> <html> <head> <title> Fabric.js | Triangle minScaleLimit Property </title> <!-- Adding the FabricJS library --> <script src= </script> </head> <body> <center> <h1 style="color: green;"> neveropen </h1> <b> Fabric.js | Triangle minScaleLimit Property </b> </center> <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, minScaleLimit: 1.5 }); // Render the Triangle in canvas canvas.add(triangle); canvas.centerObject(triangle); </script> </body> </html> |
Output:
