Painting | Drawing/painting on a whiteboard | Augmented Reality library

Raster or bitmap fonts are represented in a number of different ways and there are bitmap font file standards that have been developed for both Linux and Windows. However raw data representation of bitmap fonts in programming language source code seems to vary depending on:

• the memory architecture of the target computer,
• the architecture and communication pathways to the display controller,
• character glyph height and width in pixels and
• the amount of memory for bitmap storage and what measures are taken to make that as small as possible.

A brief overview of bitmap fonts

A generic bitmap is a block of data in which individual bits are used to indicate a state of either on or off. One use of a bitmap is to store image data. Character glyphs can be created and stored as a collection of images, one for each character in the character set, so using a bitmap to encode and store each character image is a natural fit.

Bitmap fonts are bitmaps used to indicate how to display or print characters by turning on or off pixels or printing or not printing dots on a page. See Wikipedia Bitmap fonts

A bitmap font is one that stores each glyph as an array of pixels (that is, a bitmap). It is less commonly known as a raster font or a pixel font. Bitmap fonts are simply collections of raster images of glyphs. For each variant of the font, there is a complete set of glyph images, with each set containing an image for each character. For example, if a font has three sizes, and any combination of bold and italic, then there must be 12 complete sets of images.

A brief history of using bitmap fonts

The earliest user interface terminals such as teletype terminals used dot matrix printer mechanisms to print on rolls of paper. With the development of Cathode Ray Tube terminals bitmap fonts were readily transferable to that technology as dots of luminescence turned on and off by a scanning electron gun.

Earliest bitmap fonts were of a fixed height and width with the bitmap acting as a kind of stamp or pattern to print characters on the output medium, paper or display tube, with a fixed line height and a fixed line width such as the 80 columns and 24 lines of the DEC VT-100 terminal.

With increasing processing power, a more sophisticated typographical approach became available with vector fonts used to improve displayed text quality and provide improved scaling while also reducing memory required to describe the character glyphs.

In addition, while a matrix of dots or pixels worked fairly well for languages such as English, written languages with complex glyph forms were poorly served by bitmap fonts.

Representation of bitmap fonts in source code

There are a number of bitmap font file formats which provide a way to represent a bitmap font in a device independent description. For an example see Wikipedia topic - Glyph Bitmap Distribution Format

The Glyph Bitmap Distribution Format (BDF) by Adobe is a file format for storing bitmap fonts. The content takes the form of a text file intended to be human- and computer-readable. BDF is typically used in Unix X Window environments. It has largely been replaced by the PCF font format which is somewhat more efficient, and by scalable fonts such as OpenType and TrueType fonts.

Other bitmap standards such as XBM, Wikipedia topic - X BitMap, or XPM, Wikipedia topic - X PixMap, are source code components that describe bitmaps however many of these are not meant for bitmap fonts specifically but rather other graphical images such as icons, cursors, etc.

As bitmap fonts are an older format many times bitmap fonts are wrapped within another font standard such as TrueType in order to be compatible with the standard font subsystems of modern operating systems such as Linux and Windows.

However embedded systems that are running on the bare metal or using an RTOS will normally need the raw bitmap character image data in the form similar to the XBM format. See Encyclopedia of Graphics File Formats which has this example:

Following is an example of a 16x16 bitmap stored using both its X10 and X11 variations. Note that each array contains exactly the same data, but is stored using different data word types:

you can use bottomSheet to place your image.

Add the below code inside your Scaffold

This seems to be a bug in p5.js.

The mouse coordinate seems to depend on the size of the bounding box of the canvas. The bounding box depends on the rotation. Therefor you need to scale the offset for the calculation of the center of the canvas.
Unfortunately, that's not all. All of this does not depend on the current angle, but on the angle that was set when the mouse was last moved. Hence the scale needs to be computed in the mouseMoved callback:

If this is the default "All products collection", this should work:

java.awt.Canvas does not inherit from JComponent so paintComponent won't be called automatically

The region of the slider that is selectable for the purpose of adjusting slider value is configured by both the track dimensions and thumb dimensions. If you configure the thumb to be 50x50 and the track to be 100x10, the area that is selectable is the 50x100 bounding box of the slider, not the 50x50 thumb area. For example, the area highlighted below is the selectable area:

That is also the behavior for the default slider without a theme.

With that in mind, I drew the track and thumb offset appropriately within this bounding box.

Based on my previous answer I will just translate the code to c++

In the code you provided, nowhere do you set the material color of the ball again aside from Start. If you want to have the particles behind the ball leave different colors, you will need to instantiate a new instance of the material. The reason for this is because materials in Unity are default shared between all instances of that particular material.

All of this info and a bit more can be found on the Material docs page.

As you have a fixed size of colors you are using, I would instead create 6 new materials and make an array of materials instead. Now, instead of randomly picking a color, pick a material and assign it to the ball or your new instanced painting ability. I am also confused as to why you are placing your array of colors inside of your Start function. It would be localized to that function only then. You also appear to have two Start functions, which is odd. One being the Monobehaviour Start and another start. Unless that is intended, your second start will not be run unless you call it.

Now to get to the solution I was talking about.

artists:object isn't of type object, but type array

please do add this