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)
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 does the height attribute of an image element specify in HTML?
A). Height of the image
B). Source of the image
C). Type of the image
D). Width of the 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 is the purpose of the drawImage method in HTML5 canvas?
A). To load images
B). To draw shapes
C). To display images
D). To animate images
How do you draw an image at coordinates (50, 50) with dimensions 150x100 pixels on the canvas?
A). drawImage(img, 50, 50, 150, 100)
B). drawImage(img, 0, 0, 150, 100)
C). drawImage(img, 0, 0, img.width / 2, img.height / 2)
D). drawImage(img, 100, 100, 150, 100)
Which parameter of the drawImage method specifies the target position on the canvas?
A). x, y
B). tx, ty
C). position
D). targetPosition
Which parameter of the drawImage method specifies the height of the image to be drawn on the canvas?
A). img.height
B). height
C). img.height / 2
D). height / 2
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 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