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How to clear the canvas for redrawing

... const context = canvas.getContext('2d'); context.clearRect(0, 0, canvas.width, canvas.height); share | improve this answer | follow | ...
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CSS border less than 1px [duplicate]

The default border:1px is too big. However, border: 0.5px solid; is not working. Is there a CSS solution that would make the border half the size? ...
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How to crop circular area from bitmap in Android

...ARGB_8888); Canvas canvas = new Canvas(output); final int color = 0xff424242; final Paint paint = new Paint(); final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); paint.setAntiAlias(true); canvas.drawARGB(0, 0, 0, 0); paint.setColor(color); // c...
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How can I make an svg scale with its parent container?

...you have the following: <svg> <polygon fill=red stroke-width=0 points="0,10 20,10 10,0" /> </svg> It will render as a 10px by 20px triangle: Now, if you set only the width and height, that will change the size of the SVG element, but not scale the triangle: ...
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How to calculate the SVG Path for an arc (of a circle)

Given a circle centered at (200,200), radius 25, how do I draw an arc from 270 degree to 135 degree and one that goes from 270 to 45 degree? ...
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How do I find out which process is locking a file using .NET?

... answered Nov 25 '08 at 11:48 oriporip 63.3k2020 gold badges110110 silver badges144144 bronze badges ...
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Display numbers with ordinal suffix in PHP

...= array('th','st','nd','rd','th','th','th','th','th','th'); if (($number %100) >= 11 && ($number%100) <= 13) $abbreviation = $number. 'th'; else $abbreviation = $number. $ends[$number % 10]; Where $number is the number you want to write. Works with any natural number. As a fun...
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How to remove unwanted space between rows and columns in table?

...CSS code: (From here) /* http://meyerweb.com/eric/tools/css/reset/ v2.0 | 20110126 License: none (public domain) */ html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp,...
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Android OpenGL ES and 2D

...ave your canvas set up, you start by calling something like: gl.glClear(GL10.GL_COLOR_BUFFER_BIT); After that you're ready to render a sprite. First, you'll need to load the sprite into a texture: http://qdevarena.blogspot.com/2009/02/how-to-load-texture-in-android-opengl.html However, this is the...
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How to Rotate a UIImage 90 degrees?

...rientationUp (portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally intended to resize a UIImage to do this...