Class 3 Exam > Class 3 Questions > To draw on the canvas, authors must first obt...
Start Learning for Free
To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.
- a)getImageData
- b)toDataURL
- c)getContext
- d)restore
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
To draw on the canvas, authors must first obtain a reference to a cont...
Answer:
To draw on the canvas, authors must first obtain a reference to a context using the `getContext` method of the canvas interface element. This method returns a drawing context on the canvas.
Canvas Element:
The canvas element is an HTML element that is used to draw graphics on a web page. It provides a rectangular area where you can draw using JavaScript. The canvas element has a width and height attribute, which determine the size of the drawing area.
getContext Method:
The `getContext` method is a method of the canvas element that is used to obtain a reference to a drawing context. This method takes a single argument, which is the type of context to be obtained. The most commonly used type is "2d" for two-dimensional drawing.
Obtaining a Drawing Context:
To obtain a drawing context, authors need to call the `getContext` method on the canvas element and pass the type of context as an argument. The returned value is a reference to the drawing context, which can be used to draw on the canvas.
Example:
Here is an example of how to obtain a drawing context using the `getContext` method:
```html
```
In this example, the `canvas` variable holds a reference to the canvas element with the id "myCanvas". The `context` variable holds a reference to the 2D drawing context obtained using the `getContext` method. The `fillStyle` property of the context is set to "red", and the `fillRect` method is used to draw a red rectangle on the canvas.
Conclusion:
In conclusion, to draw on the canvas, authors must first obtain a reference to a drawing context using the `getContext` method of the canvas element.
To draw on the canvas, authors must first obtain a reference to a context using the `getContext` method of the canvas interface element. This method returns a drawing context on the canvas.
Canvas Element:
The canvas element is an HTML element that is used to draw graphics on a web page. It provides a rectangular area where you can draw using JavaScript. The canvas element has a width and height attribute, which determine the size of the drawing area.
getContext Method:
The `getContext` method is a method of the canvas element that is used to obtain a reference to a drawing context. This method takes a single argument, which is the type of context to be obtained. The most commonly used type is "2d" for two-dimensional drawing.
Obtaining a Drawing Context:
To obtain a drawing context, authors need to call the `getContext` method on the canvas element and pass the type of context as an argument. The returned value is a reference to the drawing context, which can be used to draw on the canvas.
Example:
Here is an example of how to obtain a drawing context using the `getContext` method:
```html
```
In this example, the `canvas` variable holds a reference to the canvas element with the id "myCanvas". The `context` variable holds a reference to the 2D drawing context obtained using the `getContext` method. The `fillStyle` property of the context is set to "red", and the `fillRect` method is used to draw a red rectangle on the canvas.
Conclusion:
In conclusion, to draw on the canvas, authors must first obtain a reference to a drawing context using the `getContext` method of the canvas element.
Free Test
FREE
| Start Free Test |
Community Answer
To draw on the canvas, authors must first obtain a reference to a cont...
The method getImageData(), returns an imageData that copies pixel data for a specified thing in canvas. ContextType is a DOMString containing the context identifier defining the drawing context associated to the canvas.
Attention Class 3 Students!
To make sure you are not studying endlessly, EduRev has designed Class 3 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 3.
|
Explore Courses for Class 3 exam
|
|
Similar Class 3 Doubts
Top Courses for Class 3View all
To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer?
Question Description
To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? for Class 3 2024 is part of Class 3 preparation. The Question and answers have been prepared according to the Class 3 exam syllabus. Information about To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 3 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer?.
To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? for Class 3 2024 is part of Class 3 preparation. The Question and answers have been prepared according to the Class 3 exam syllabus. Information about To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 3 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer?.
Solutions for To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 3.
Download more important topics, notes, lectures and mock test series for Class 3 Exam by signing up for free.
Here you can find the meaning of To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice To draw on the canvas, authors must first obtain a reference to a context using the ______________ method of the canvas interface element.a)getImageDatab)toDataURLc)getContextd)restoreCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 3 tests.
|
|
Explore Courses for Class 3 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup