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  2. Midpoint circle algorithm - Wikipedia

    en.wikipedia.org/wiki/Midpoint_circle_algorithm

    The implementations above always draw only complete octants or circles. To draw only a certain arc from an angle to an angle , the algorithm needs first to calculate the and coordinates of these end points, where it is necessary to resort to trigonometric or square root computations (see Methods of computing square roots). Then the Bresenham ...

  3. PhotoScape - Wikipedia

    en.wikipedia.org/wiki/PhotoScape

    PhotoScape is a graphics editing program, developed by MOOII Tech, Korea.The basic concept of PhotoScape is 'easy and fun', allowing users to easily edit photographs taken from their digital cameras or even mobile phones.

  4. Lasso tool - Wikipedia

    en.wikipedia.org/wiki/Lasso_tool

    The lasso (or "free form selection") is an editing tool available, with minor variations, in most digital image editing software [1] and some specific strategy games.It is often accessed from the standard main menu (in Photoshop, [2] Paint Tool SAI, [3] and GIMP, [4] as common examples), by clicking the icon of a dotted line shaped like a rope lasso, from which the common name arises.

  5. Golden triangle (composition) - Wikipedia

    en.wikipedia.org/wiki/Golden_triangle_(composition)

    Photoshop has an option putting guidelines for the golden triangle in the crop tool (in this case, it is simply called "triangle"). [3] These guidelines can be flipped horizontally, by hitting shift-O or selecting "Cycle Overlay Orientation" from the overlay pull down menu.

  6. Compass (drawing tool) - Wikipedia

    en.wikipedia.org/wiki/Compass_(drawing_tool)

    A beam compass and a regular compass Using a compass A compass with an extension accessory for larger circles A bow compass capable of drawing the smallest possible circles. A compass, also commonly known as a pair of compasses, is a technical drawing instrument that can be used for inscribing circles or arcs.

  7. Adobe Photoshop - Wikipedia

    en.wikipedia.org/wiki/Adobe_Photoshop

    Adobe Photoshop is a raster graphics editor developed and published by Adobe for Windows and macOS.It was created in 1987 by Thomas and John Knoll.It is the most used tool for professional digital art, especially in raster graphics editing, and its name has become genericised as a verb (e.g. "to photoshop an image", "photoshopping", and "photoshop contest") [7] although Adobe disapproves of ...

  8. Reuleaux triangle - Wikipedia

    en.wikipedia.org/wiki/Reuleaux_triangle

    Alternatively, a Reuleaux triangle may be constructed from an equilateral triangle T by drawing three arcs of circles, each centered at one vertex of T and connecting the other two vertices. [9] Or, equivalently, it may be constructed as the intersection of three disks centered at the vertices of T , with radius equal to the side length of T .

  9. Carlyle circle - Wikipedia

    en.wikipedia.org/wiki/Carlyle_circle

    Draw a circle centered at M through the point A. This is the Carlyle circle for x 2 + x − 1 = 0. Mark its intersection with the horizontal line (inside the original circle) as the point W and its intersection outside the circle as the point V. These are the points p 1 and p 2 mentioned above. Draw a circle of radius OA and center W. It ...