Psychtoolbox rotate rectangle Mar 31, 2025 · When rotating by angles that are not a multiple of 90 degrees, the bounding box may not be accurate (too large). It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer. You would need the points of the polygon vertex. Mar 31, 2025 · border of 5th rectange, rect(2,5)=top border of 5th rectangle, rect(3,5)=right border of 5th rectangle, rect(4,5)=bottom border of 5th rectangle. Nov 5, 2015 · The program successfully draws a rectangle but I can't find any online resources that explain how to rotate it. The static rectangle is created using Screen(‘FillRect’',…), but it could also be a texture if that would make things easier. The moving rectangle is a texture displayed with Screen(‘DrawTexture’,…) and it also rotates. Then drawing the texture to the screen. Please help I need to rotate a rectangle. Genna--- In psychtoolbox@yahoogroups. The default is 0 == Optimize for upright drawing. Note that this doesn't mean the angles will be unique. PTB doesn't offer a direct way in which to rotate text using the "DrawFormattedText" command. g. com, "gozenmanf" <filizg@> wrote: > > Hi all, > > I'm drawing 4 rectangles with randomized rotations. If the ‘rotationAngle’ is non-zero, this ‘dstRect’ will be rotated around its center, thereby drawing a rotated texture onto the screen. Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and GNU Octave functions for vision and neuroscience research. Mar 31, 2025 · Normally, you pass a rectangular, upright ‘dstRect’ destination rectangle that defines the area of the window that should be overdrawn by the texture. One just needs to specify a rotation angle by editing line 172 of that script, so the drawn rectangles are tilted, to get the idea. rot_angle=randperm(36)10; Mar 31, 2025 · Psychtoolbox-3. Jun 25, 2024 · Hi all, I want to detect whether a moving rectangle is inside another static rectangular area or not. Mar 31, 2025 · Psychtoolbox-3. {mex} subfunction Screen(‘glRotate’, windowPtr, angle, [rx = 0], [ry = 0] ,[rz = 1]); Define a rotation transform by an angle of ‘angle’ degrees around the axis Jan 27, 2016 · You could create a texture from the rectangle, then rotate that on display. In order to impose uniquness use . This does not help. Mar 31, 2025 · The argument ‘optimizeForDrawAngle’ if provided, asks Psychtoolbox to optimize the texture for especially fast drawing at the specified rotation angle. The optional return argument ‘wordbounds’, if assigned in the calling Psychtoolbox-3. In this case, all sides are 1024, which makes each involved rectangle a power of 2. Rotating Text Demo: In this demo we show you dynamically rotate text. For in built text rotation see DrawFormattedText2, however it is very simple to rotate the text ourselves. using randi there's a chance two rotation angles will be the same. Nov 23, 2020 · Ther’s also DrawingSpeedTest ([], [], 2) to demonstarte this method if one follows the code taken for the ‘2’ setting, or for the ‘3’ setting if one wants the faster batch-drawing of textures mode. Also it needs to be done using psychtoolbox if possible. Oct 8, 2014 · I know how to draw a rectangle but I'm stuck on how to rotate it. Those are not difficult to calculate for the case of a square rotated 45 degrees: Mar 31, 2025 · Psychtoolbox>Screen. Learn more about fillrect, rectangle, rotate, angle, psychtoolbox Help rotating a rectangle (PsychToolbox). Like I said, I use Psychtoolbox, but I know that it uses OpenGL under the hood. If the rectangles should have different colors, then provide “color” as a 3 or 4 row by n column matrix, the i’th column specifiying the color of the i’th rectangle. , 64 x 64, 256 x Feb 4, 2017 · Learn more about psychtoolbox, rotate square, diamond, rotate 2d shape I'm trying to rotate a purple square into a purple diamond. Learn more about psychtoolbox, ptb, matlab, fillrect, rotate The program successfully draws a rectangle but I can't find any online resources that explain how to rotate it. Increasing the size of the checkerboard results in a similar situation where the right- and bottommost sides are not showed correctly. Feb 5, 2017 · Learn more about psychtoolbox, rotate square, diamond, rotate 2d shape I'm trying to rotate a purple square into a purple diamond. Learn more about psychtoolbox, rotate square, diamond, rotate 2d shape I'm trying to rotate a purple square into a purple diamond. % Get the list of screens and choose the one with the highest screen number. Learn more about fillrect, rectangle, rotate, angle, psychtoolbox I've never used the psychtoolbox, but in plain old Matlab you could plot a rectangle, then rotate it. PTB doesn't offer a direct way in which to rotate text using the "DrawFormattedText" command, however it is very simple to rotate the text ourselves. You can draw multiple rectangles at once and there's a parameter that lets you specify a rotation angle. You don't need to make a separate texture for each rectangle. ###See also: FrameRect Rotating Text (to texture) Demo: In this demo we show you dynamically rotate text. Oct 8, 2014 · Please help I need to rotate a rectangle. I am working with PsychToolBox and a template of code that already successfully draws a purple square. Learn more about fillrect, rectangle, rotate, angle, psychtoolbox Jun 7, 2013 · Take a look at DrawTextures. We do this by drawing the text to a texture. . Mar 31, 2025 · operation for drawing of rotated textures, where the drawn ‘dstRect’ texture rectangle is always upright, but texels are retrieved at rotated positions, as if the ‘srcRect’ rectangle would be rotated. Initially, I thought I could detect the overlap by using Mar 31, 2025 · Psychtoolbox-3 Psychophysics Toolbox Version 3 (PTB-3) is an open-source set of Matlab and GNU Octave functions for vision and neuroscience research. Help rotating a rectangle (PsychToolbox). 댓글 수: 0 이전 댓글 -2개 표시 이전 댓글 -2개 숨기기 Jun 7, 2013 · Now there is at least 10 deg apart in each angle, with step size of 10 degrees. Psychophysics Toolbox Version 3 (PTB-3) is an open-source set of Matlab and GNU Octave functions for vision and neuroscience research. Psychtoolbox-3. Alternatively, you could specify the coordinates of each edge of the diamond, then display that using the 'FramePoly' function. If ‘specialFlags’ is set to 1 and the width and height of the imageMatrix are powers of two (e. Learn more about fillrect, rectangle, rotate, angle, psychtoolbox Learn more about psychtoolbox, rotate square, diamond, rotate 2d shape I'm trying to rotate a purple square into a purple diamond. The returned bounding box is the rect that tightly fits the rotated original bounding box, not the box that tightly fits the rotated ink of the letters. Someone please help me out and show me the code I've been looking for a while. Here is what I have so far: % function [ output_args ] = SubDetection( ) Feb 5, 2017 · The closest I can find in Psychtoolbox is FramePoly. nohu vfn mkggvpip nfk ang deej orom ojhpu afpq ysn jgwmqeeoh gesqp rvyczu lsc qvqvpl