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Assignment 3 using the Bresenham algorithm to draw a circle in OpenGL

to, and using the same iterative method for the next judgment. In addition to drawing lines and circles, you can also draw ellipses, hyperbolic curves, and so on.There is a little more experience is that this problem must be seen in foreign forums to find a good explanation.Code:#include #includevoidMyinit (void) {Glclearcolor (1.0f,1.0f,1.0f,0.0f); glcolor3f (1.0,0.0,0.0); Glmatrixmode (gl_projection); Glloadidentity (); Gluortho2d (0.0,500.0,0.0,500.0); Glmatrixmode (Gl_modelview);}void

Android Magnifier shapedrawable magical Sharing _android

First, the shape of the painting can be specified when the shapedrawable is constructed, Second, you can use Shape.getpaint (). Setshader (); Specify Shader,shader can accept a picture and matrix So the problem is solved smoothly: Specifically implemented as follows:[Java] Copy Code code as follows: float scale = 1.2f; int cx = 224; int cy = 357; int r = 200; Specifies that the shape creates a shapedrawable Shapedrawable shape=n

Different views on dynamically changing the widget size)

Original article: http://www.huarw.com/program/vc/vc01/200804/1538412.html About Dynamic ChangesWidgetDifferent views on Size The programming Forum (hur.cn) was published:2008-04-14 12:14:05 Landlord I read a lot of posts on the Forum about dynamically changing the size of the Edit Control, which is basically very simple. Reload wm_size and use getdlgitem (idc_edit)-> movewindow (crect );I can use it but I can't. I wrote a dialog box program with an edit box in the dialog box. I used movewi

Flowers created with flash scripts

= Flower_mc._xmouse * SLOW; var ay = 0; var cy = cos (ay); var sy = sin (ay); var cx = cos (AX); var sx = sin (ax); var h = ABS (Flower_mc[fnum].getbounds (FLOWER_MC). Ymin-fy) * 2; With (FLOWER_MC[FNUM].STEM_MC) { Clear (); LineStyle (3, leafline[leafnum]); MoveTo (0, fnum = 0?) (Floor_pos): (Flower_mc[fnum-1].oy)); LineTo (0, FY); }//End of With if (Growscale { Growslow = Growslow * 0.950000; Growscale = Growscale + growslow; } Else { Growscale = 1

Clean of Assembly Source series

special processing.CMP AL,CR; If control code other thanJe clean35 tab or end-of-file mark, throwCMP al,ff; it away unless it is aJe clean35 form feed, carriage return,CMP Al,lf or line feeds.Jne CLEAN3Clean35:; If It is one of the those three,MOV column,0; incidentally initializeJMP clean45 column count for tab processor.CLEAN4:; count alphanumeric chars. Sent.INC columnClean45:; write this character toCall Put_char output file,Jnc CLEAN3 If CY not

Use the ipicture interface to display images

(hR = s_ OK ); Long nwidth, nheight; // width and height, mm_himetric mode, in 0.01mmPpicture-> get_width ( nwidth); // widthPpicture-> get_height ( nheight); // high Crect rect;Getclientrect ( rect ); Csize SZ (nwidth, nheight );PDC-> himetrictodp ( sz); // converts the mm_himetric mode to the mm_text pixel unit.Long X, Y, CX, Cy; // Original size/*Cx = Sz. CX;Cy = Sz.

VC ++ reads AVI Video Files

Header file # include Member variables: // For AVI;Pgetframe frame;Bitmapfileheader BMP fileheader;Pavifile avifile;Pavistream avistream;Avistreaminfo;Int m_nframenumber;Bitmapinfo * m_pbitmapinfo;Byte * pdata;Int Cy;Int CX;Handle handle;// ReadCode: Avifileinit (); avifileopen ( Avifile, " E: \ Alizee. Avi " , Of_read, null); avifilegetstream (avifile, Avistream, streamtypevideo, 0 ); Avistreaminfo (avistream, Avistreaminfo, Sizeof

Use JavaScript to define and operate custom HTML elements

PreviousArticleDiscussed and usedJavascriptTo manipulateHtmlThe custom attribute of the elementHtmlIn addition toHtmlCan a customHtmlWhat about elements? The answer is yes. CustomHtmlElements and the system's ownHtmlThe element has the same position and can be usedDocument. getelementbyidThe difference is that the customHtmlElements are invisible, similar to hidden controls. Use customHtmlElement, we can create a variety of hidden controls, not necessarily limitedInputOfHiddenElement. In add

Html-Faux QQ space right bottom corner tool floating block

Imitation QQ space right lower corner tool floating blockclass="Fix-layout"> class="Cy-tp-area"> "javascript:;"onclick="$cy. Main_bll. T001.scrolltop ()" class="cy-tp-fixbtn cy-tp-returntop"> class="Cy-tp-icon">class="Cy-tp-text">

Qt+openface do brush face machine

reasonable, the value is slightly ad-hocif (Detection_certainty {Landmarkdetector::D Raw (Captured_image, Face_model); Double vis_certainty = Detection_certainty;if (Vis_certainty > 1)Vis_certainty = 1;if (Vis_certainty Vis_certainty =-1; Vis_certainty = (vis_certainty + 1)/(visualisation_boundary + 1); A rough heuristic for box around the face widthint thickness = (int) Std::ceil (2.0* (double) captured_image.cols)/640.0); cv::vec6d Pose_estimate_to_draw = Landmarkdetector::getcorrectedposewor

How MFC makes the size of a control automatically adjust with the size of the dialog box

); Scaling Controls}}Finally add the Windows message response function OnSize:void Cmydlg::onsize (UINT nType, int cx, int cy)//Cx,cy is the length and width of the current dialog box{Cdialog::onsize (NType, CX, CY);Todo:add your message Handler code hereif (ntype!=size_minimized)// judgment window is not minimized, because after the window is minimized, the leng

Javascript/jquery Create a new summary table based on the table on the page

("href")); }); Jsonarr.push (Jsonobj); }); returnJsonarr; }, Initbpdtable:function(list) {varThis = $ ( This), $list=$ (list); varKeyarr =NewArray (), Jsonarr=NewArray (), Yeararr=NewArray (); Jsonarr= $list. Getjsonarrfromlistview (3); //Calculate start Year varStartYear = (function(Jsonarr) {varresult = 2000; $.each (Jsonarr,function(Entryindex, entry) {vartemp = number (entry[' CY ')]); if(Temp >result) {Result=temp

Test computer performance with Julia set

Var Mybitmapdata:bitmapdata; A,b are all the parameters of Julia set private static var a:number =. 5; private static var b:number =. 55; private static var pixelnum:number = 0; private static var Timelimitation:number = 4000;//Calculation time limit function Test () { Bitmapcreator (); } Private Function Bitmapcreator (): BitmapData { Mybitmapdata = new BitmapData (A, false, 0XCCCCCCCC); return mybitmapdata; } Private Function Mccreator (): MovieClip { Mcorigin = This.createemptymovieclip ("MC

Webcam Application Based on v4l2, local pre-Monitoring

Void * vs_open (int v_width, int v_height) {Ctx * ctx = new Ctx; ctx-> v_width = v_width; ctx-> v_height = v_height; // windowctx-> display = XOpenDisplay (0); ctx-> window = XCreateSimpleWindow (ctx-> display, RootWindow (ctx-> display, 0), 100,100, v_width, v_height, 0, BlackPixel (ctx-> display, 0), WhitePixel (ctx-> display, 0); ctx-> screen = 0; ctx-> gc = XCreateGC (ctx-> display, ctx-> window, 0, 0); XMapWindow (ctx-> di Splay, ctx-> window); // current screen pix fmtWindow root; unsigne

A minimal path overlay to a acyclic graph (DAG)

matching edge in a binary graph, it is equivalent to combining two paths into one path, which is equivalent to reducing the number of paths by 1. So a few matching edges are found, and the number of paths is reduced. So there is a minimum path overlay = The original number of nodes-the maximum match for the new graph.Because there is no common point between the paths, there is no common point between the added edges, which is the definition of the match.Exercise : POJ1422////main.cpp//POJ1422 m

..

Algorithm ) Then there is the Hungary template: The template is provided in combination with HDU 1240 asteroids: The question is to connect the given point, that is, to obtain the minimum point coverage. # Include # Include Using namespace STD; # Deprecision Max 502Int map [Max] [Max];Int N, K;Int MK [Max];// Starting from the vertex u in the X set, use the depth-first policy to find the augmented path.// (This augmented path can only increase the current number of matches by 1)Int

Why Android TextView text typesetting is uneven

functions of the parent class, usually the function that begins with on, and overrides the OnDraw () and Onmeasure () functions in the example;=========================cytextview.java=============================public class Cytextview extends TextView {public static int m_itextheight; Height of textpublic static int m_itextwidth;//width of textPrivate Paint mpaint = null;Private String string= "";private float linespace = 0;//line SpacingPublic Cytextview (context context, AttributeSet set){Su

Boutique tutorials How to design a camera array (3) Single-mode mounting bracket

module Cam_zhuti () {cx=43.5;cy=58;cz=29;color ([1,0.5,0.3]) translate ([0,cy/2,cz/2+dz]) cube ([Cx,cy,cz] , center=true);d x=43.5;dy=59;dz=6;color ([1,0.5,0.1]) translate ([0,DY/2,DZ/2]) cube ([dx,59,dz],center=true); cr=8; ch=dz+10; Color ([0,0,1]) translate ([0,dy/2,ch/2-10]) cylinder (ch,cr/2,cr/2,center=true, $FN = 160); Color ([0,0,1]) translate ([0,d

Generation of fractal images (C ++)

Recently, I saw the Delphi Program for a lifetime of component graphics on the Internet. The generated graphics are very beautiful, so I changed it to C ++ and improved the generation efficiency. The Code is as follows (the original code uses the plural operation and is removed for efficiency, but is still kept in the comment) // This function is used to obtain the color. S is between [0, 1] and the color is continuous. Colorref getcolor (double S) { Int R, G, B; If (s { G = int (255 * s/0.25 );

2014.2.27 merge Images

Public byte [] transpic (string picpath) // convert the image size into bytes { Image imgphoto = image. fromfile (picpath ); Int oldx = imgphoto. width; Int Oldy = imgphoto. height; // New image size Int Cx = 255; Int Cy = 255; If (oldx> = Oldy) Cy = convert. toint32 (255 * convert. todouble (Oldy)/convert. todouble (oldx )); If (oldx Cx = convert. toint32 (255 * convert. todouble (oldx)/convert. todoubl

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