Answer & Solution
Answer: Option A
Solution:
To scale an image, use drawImage(img, 0, 0, img.width / 2, img.height / 2) to scale to half the original size.
Q
How do you scale an image using drawImage?
Related Questions on Average
How do you display an image with dimensions 200x150 pixels on the canvas using drawImage?
A). drawImage(img, 0, 0, 200, 150)
B). drawImage(img, 0, 0, img.width, img.height)
C). drawImage(img, 0, 0, img.width / 2, img.height / 2)
D). drawImage(img, 100, 100, 200, 150)
What does the onload event ensure before drawing an image on the canvas?
A). The canvas is ready
B). The image is fully loaded
C). The browser is open
D). The canvas size is set
How do you draw an image at coordinates (100, 100) on the canvas using drawImage?
A). drawImage(img, 100, 100)
B). drawImage(img, 0, 0, 100, 100)
C). drawImage(img, 0, 0, img.width, img.height)
D). drawImage(img, img.width, img.height)
Which method is used to load an image in HTML5 canvas?
A). loadImage()
B). createImage()
C). Image()
D). new Image()
How do you draw an image at coordinates (200, 200) on the canvas with dimensions 300x200 pixels using drawImage?
A). drawImage(img, 200, 200, 300, 200)
B). drawImage(img, 0, 0, 300, 200)
C). drawImage(img, 0, 0, img.width / 2, img.height / 2)
D). drawImage(img, 100, 100, 300, 200)
What does the onload event handler ensure in HTML5 canvas?
A). The canvas is fully loaded
B). The image is fully loaded
C). The canvas is ready
D). The browser is open
How do you draw a cropped portion of an image using drawImage?
A). drawImage(img, 50, 50, 100, 100, 0, 0, 100, 100)
B). drawImage(img, 0, 0, 100, 100)
C). drawImage(img, 0, 0, img.width, img.height)
D). drawImage(img, 100, 100)
What event is used to ensure an image is fully loaded before drawing it on the canvas?
A). onload
B). onready
C). onloaded
D). onimage
Which parameter of the drawImage method specifies the width of the image to be drawn on the canvas?
A). img.width
B). width
C). img.width / 2
D). width / 2
What is the purpose of the src attribute in an image element in HTML?
A). Specifies the source of the image
B). Specifies the size of the image
C). Specifies the type of the image
D). Specifies the width of the image