nullx | Nullx is audio/video/subtitle transcoding server
kandi X-RAY | nullx Summary
kandi X-RAY | nullx Summary
Nullx is a transcoding server which converts input audio/video files (with multiple tracks) into h264/aac/mov_text format and optionally uploads resulted files into elliptics storage. Nullx spawns a pool of processes using ribosome::fpool each one transcodes media file using ffmpeg. If process crashes it will be automatically restarted. Transcoding is asynchronous, server will reply to client after it is completed. If elliptics upload options are not specified in the request, server will send transcoded file to client in reply.
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QUESTION
I have a very simple 9x9 grid. I know how to handle the rectangles on this grid. What I want is when I click on one of the grid rectangles, this rectangle should now be marked with a fill or border around it.
I can draw a rectangle, with a blue fill at exact the correct rectangle on the grid.
But with the next click on the grid, the new rectangle is drawn but the old rectangle is still there and will stay there. And so on.
My question is now, how can I paint always exact on rectangle at the click position?
Is maybe a class the right way?
Creating every time a new rectangle and destroy the old one?
...ANSWER
Answered 2022-Feb-11 at 23:00It's important to understand that p5.js draws in immediate mode, so each element, once drawn, is not removable unless intentionally drawn over or cleared. This simplest solution to your specific problem is to simply save to location to be highlighted when the user presses the mouse, and then always clear the canvas and redraw everything (including the selected square) in the draw function. Because there's no animation, you can optimize this by disabling looping in your setup
function, and then explicitly calling redraw when something happens that effects the display (i.e. the mouse is pressed).
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