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P5.js / JavaScript: Determine Rectangle & Ellipse Height from Code Variables
In p5.js and other JavaScript creative coding frameworks, the rect and ellipse functions define geometric shapes using specific parameters. To determine the height of a rectangle or an ellipse, you need to look at the arguments passed to these drawing functions within your code. Understanding how thRead more
In p5.js and other JavaScript creative coding frameworks, the rect and ellipse functions define geometric shapes using specific parameters. To determine the height of a rectangle or an ellipse, you need to look at the arguments passed to these drawing functions within your code. Understanding how these dimensions are set is fundamental to graphics programming.
For the rect function, which creates a rectangular shape on the canvas, its standard syntax is rect(x, y, width, height). The height of the rectangle is always specified by the fourth argument passed to the rect function. This fourth parameter directly sets the vertical dimension or vertical size of the drawn rectangular shape. For instance, if you have code like rect(50, 50, 100, 75), the height of this rectangle is 75 units, which typically correspond to pixels depending on your canvas scale. Variables are frequently used in creative coding to control these dimensions, so if you see rect(positionX, positionY, myShapeWidth, rectHeightVariable), then rectHeightVariable holds the value for the rectangle’s vertical measurement.
Similarly, for the ellipse function, which draws an oval or circular shape, its common syntax is ellipse(x, y, width, height). The height of the ellipse is also determined by its fourth parameter or argument. This specific argument controls the vertical diameter or vertical extent of the elliptical shape. For example, in code such as ellipse(150, 150, 80, 120), the height of the ellipse is 120 units. When variables are used, for instance ellipse(centerX, centerY, diameterX, ellipseHeightVariable), the variable ellipseHeightVariable explicitly defines the vertical size of the ellipse. Knowing where to find these specific arguments or parameters is key for manipulating the visual output of geometric shapes in your JavaScript and p5.js projects. The values provided for width and height directly govern the size and overall dimensions of these graphical elements on your screen.
See lessCumulative Text Formatting: Bold and Italic Effects in Word Processors
When you select plain, unformatted text in a word processing application such as Microsoft Word, Google Docs, or LibreOffice Writer, and first apply the bold formatting, then immediately apply the italic formatting while the same text remains selected, the final appearance of the text will be both bRead more
When you select plain, unformatted text in a word processing application such as Microsoft Word, Google Docs, or LibreOffice Writer, and first apply the bold formatting, then immediately apply the italic formatting while the same text remains selected, the final appearance of the text will be both bold and italic. Word processors are designed to apply character formatting cumulatively. This means that each formatting command adds its specific style to the selected text without removing previously applied styles. Therefore, after clicking the bold button, the text becomes thicker. Then, clicking the italic button makes that same bold text slant. The result is a combination of both the bold effect and the italic effect, leading to text that is simultaneously bolded and italicized. This is a standard behavior for combining text styles and font styles in digital documents, allowing users to layer different formatting attributes onto their chosen content within the software features.
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