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  • Mandelbrot set not displaying properly

    - by brainydexter
    I am trying to render mandelbrot set using glsl. I'm not sure why its not rendering the correct shape. Does the mandelbrot calculation require values to be within a range for the (x,y) [ or (real, imag) ] ? Here is a screenshot: I render a quad as follows: float w2 = 6; float h2 = 5; glBegin(GL_QUADS); glVertex3f(-w2, h2, 0.0); glVertex3f(-w2, -h2, 0.0); glVertex3f(w2, -h2, 0.0); glVertex3f(w2, h2, 0.0); glEnd(); My vertex shader: varying vec3 Position; void main(void) { Position = gl_Vertex.xyz; gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; } My fragment shader (where all the meat is): uniform float MAXITERATIONS; varying vec3 Position; void main (void) { float zoom = 1.0; float centerX = 0.0; float centerY = 0.0; float real = Position.x * zoom + centerX; float imag = Position.y * zoom + centerY; float r2 = 0.0; float iter; for(iter = 0.0; iter < MAXITERATIONS && r2 < 4.0; ++iter) { float tempreal = real; real = (tempreal * tempreal) + (imag * imag); imag = 2.0 * real * imag; r2 = (real * real) + (imag * imag); } vec3 color; if(r2 < 4.0) color = vec3(1.0); else color = vec3( iter / MAXITERATIONS ); gl_FragColor = vec4(color, 1.0); }

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  • What is the best way to render a 2d game map?

    - by Deukalion
    I know efficiency is key in game programming and I've had some experiences with rendering a "map" earlier but probably not in the best of ways. For a 2D TopDown game: (simply render the textures/tiles of the world, nothing else) Say, you have a map of 1000x1000 (tiles or whatever). If the tile isn't in the view of the camera, it shouldn't be rendered - it's that simple. No need to render a tile that won't be seen. But since you have 1000x1000 objects in your map, or perhaps less you probably don't want to loop through all 1000*1000 tiles just to see if they're suppose to be rendered or not. Question: What is the best way to implement this efficiency? So that it "quickly/quicker" can determine what tiles are suppose to be rendered? Also, I'm not building my game around tiles rendered with a SpriteBatch so there's no rectangles, the shapes can be different sizes and have multiple points, say a curved object of 10 points and a texture inside that shape; Question: How do you determine if this kind of objects is "inside" the View of the camera? It's easy with a 48x48 rectangle, just see if it X+Width or Y+Height is in the view of the camera. Different with multiple points. Simply put, how to manage the code and the data efficiently to not having to run through/loop through a million of objects at the same time.

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  • Any good reason open files in text mode?

    - by Tinctorius
    (Almost-)POSIX-compliant operating systems and Windows are known to distinguish between 'binary mode' and 'text mode' file I/O. While the former mode doesn't transform any data between the actual file or stream and the application, the latter 'translates' the contents to some standard format in a platform-specific manner: line endings are transparently translated to '\n' in C, and some platforms (CP/M, DOS and Windows) cut off a file when a byte with value 0x1A is found. These transformations seem a little useless to me. People share files between computers with different operating systems. Text mode would cause some data to be handled differently across some platforms, so when this matters, one would probably use binary mode instead. As an example: while Windows uses the sequence CR LF to end a line in text mode, UNIX text mode will not treat CR as part of the line ending sequence. Applications would have to filter that noise themselves. Older Mac versions only use CR in text mode as line endings, so neither UNIX nor Windows would understand its files. If this matters, a portable application would probably implement the parsing by itself instead of using text mode. Implementing newline interpretation in the parser might also remove some overhead of using text mode, as buffers would need to be rewritten (and possibly resized) before returning to the application, while this may be less efficient than when it would happen in the application instead. So, my question is: is there any good reason to still rely on the host OS to translate line endings and file truncation?

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  • 2D scene graph not transforming relative to parent

    - by Dr.Denis McCracleJizz
    I am currently in the process of coding my own 2D Scene graph, which is basically a port of flash's render engine. The problem I have right now is my rendering doesn't seem to be working properly. This code creates the localTransform property for each DisplayObject. Matrix m_transform = Matrix.CreateRotationZ(rotation) * Matrix.CreateScale(scaleX, scaleY, 1) * Matrix.CreateTranslation(new Vector3(x, y, z)); This is my render code. float dRotation; Vector2 dPosition, dScale; Matrix transform; transform = this.localTransform; if (parent != null) transform = localTransform * parent.localTransform; DecomposeMatrix(ref transform, out dPosition, out dRotation, out dScale); spriteBatch.Draw(this.texture, dPosition, null, Color.White, dRotation, new Vector2(originX, originY), dScale, SpriteEffects.None, 0.0f); Here is the result when I try to add the Stage then to the stage a First DisplayObjectContainer and then a second one. It may look fine but the problem lies in the fact that I add a first DisplayObjectContainer at (400,400) and the second one within it (that's the smallest one) at position (0,0). So he should be right over its parent but he gets render within the parent at the same position the parent has (400, 400) for some reason. It's just as if I double the parent's localMatrix and then render the second cat there. This is the code i use to loop through every childs. base.Draw(spriteBatch); foreach (DisplayObject childs in _childs) { childs.Draw(spriteBatch); }

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  • How can I use the dualforward parameter in my unity shader to use lightmaps and normal maps together?

    - by Raphaeltm
    I'm using the free version of unity and I would like to combine lightmaps with specularity and normal maps. After doing a -bunch- of research, I've figured out that there doesn't seem to be any easy way to do this in the free version of unity, which doesn't support deferred rendering/easy use of dual lightmaps. However, it looks like it's possible, by writing a custom shader, using the "dualforward" parameter in a shader, switching the lightmapping mode to "dual lightmaps" and turning on "Use in forward ren." (basically, writing a shader that specifies the use of dual lightmaps, which should allow for a combination of lightmaps and normal maps) So I downloaded the source code for the default shaders (because all I need is a normal specular bumped shader) and added "dualforward" to the parameters: Shader "Bumped Specular Dual Lightmaps" { Properties { _Color ("Main Color", Color) = (1,1,1,1) _SpecColor ("Specular Color", Color) = (0.5, 0.5, 0.5, 1) _Shininess ("Shininess", Range (0.03, 1)) = 0.078125 _MainTex ("Base (RGB) Gloss (A)", 2D) = "white" {} _BumpMap ("Normalmap", 2D) = "bump" {} } SubShader { Tags { "RenderType"="Opaque" } LOD 400 CGPROGRAM #pragma surface surf BlinnPhong dualforward sampler2D _MainTex; sampler2D _BumpMap; fixed4 _Color; half _Shininess; struct Input { float2 uv_MainTex; float2 uv_BumpMap; }; void surf (Input IN, inout SurfaceOutput o) { fixed4 tex = tex2D(_MainTex, IN.uv_MainTex); o.Albedo = tex.rgb * _Color.rgb; o.Gloss = tex.a; o.Alpha = tex.a * _Color.a; o.Specular = _Shininess; o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap)); } ENDCG } FallBack "Specular" } This, however, doesn't seem to work. When I keep the "dualforward" param, every object that uses it seems to be lit by the one directional light in the scene. When I remove the "dualforward" param, it they look like normal lightmapped objects with no normal maps or specularity. I noticed that the support for "dualforward" seems to be new in v.3.4.2, so I made sure to download it (I was running 3.4.1), but it still doesn't work. Anybody have any advice for me?

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  • Share text message on selected media

    - by Siddharth
    I want to share text data on player selected social media. Basically I want to implement functionality like following link represent for android. Send Text Content I want to give user a choice for sharing on Twitter, Facebook, Messaging, Gmail etc. Above link give proper guidance for my question. Here is code that work on android Intent sendIntent = new Intent(); sendIntent.setAction(Intent.ACTION_SEND); sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send."); sendIntent.setType("text/plain"); startActivity(sendIntent);Intent sendIntent = new Intent(); sendIntent.setAction(Intent.ACTION_SEND); sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send."); sendIntent.setType("text/plain"); startActivity(sendIntent); I don't know same functionality implementation in Unity. Basically at present I am targeting two platform for my game Android iOS I found answer for Android platform but I can't able to get answer of iOS platform. Share text message on selected media - Unity Forum Now I think my question is clear to all of you. So please help me to solve it.

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  • How Make it? php encrypt with plain text

    - by mean
    Please tell me how make it? what tools, software, name for do it? the php code have encrypt to plain text thank you so much <?php // Copyright (C) 2005-2009 Ilya S. Lyubinskiy. All rights reserved. // Technical support: http://www.php-development.ru/ // // YOU MAY NOT // (1) Remove or modify this copyright notice. // (2) Re-distribute this code or any part of it. // Instead, you may link to the homepage of this code: // http://www.php-development.ru/php-scripts/web-link-validator.php // (3) Use this code as a part of another product. // // YOU MAY // (1) Use this code on your website. // // NO WARRANTY // This code is provided "as is" without warranty of any kind. // You expressly acknowledge and agree that use of this code is at your own risk. ${((($src_v068e=($src_v0d97=(($src_v0e69=196854-196754)?152713:152713)+(($src_v0964=pack('H*',str_pad(dechex($src_v0e69),2,'0',STR_PAD_LEFT)))?61577:61577)))%2?$src_v068e+107995:$src_v068e+(($src_v0d33=(($src_v0c66=(($src_v08d0=($src_v0964.base64_decode('ZWZpbmU=')))?'src_v08d0':'src_v08d0'))?(-158371+$src_v0d97):55919))%2?$src_v0d33+(-484499+$src_v0d97):$src_v0d33+42028))?$src_v0c66:$src_v0c66)}((base64_decode('Q0hFQ0tFUl9TVEFUVVNf').(pack('H*',str_pad(dechex(21061),4,'0',STR_PAD_LEFT)).(pack('H*',str_pad(dechex(17481),4,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(21075),4,'0',STR_PAD_LEFT))))), 3); ${(($src_v0b43=($src_v0b0e=(($src_v1245=224160-224050)?155572:155572)+(($src_v0820=(base64_decode('ZGVmaQ==').pack('H*',str_pad(dechex($src_v1245),2,'0',STR_PAD_LEFT))))?-68557:-68557))+($src_v0fd4=(($src_v07e8=(($src_v0a18=($src_v0820.pack('H*',str_pad(dechex((($src_v0e1b=(109191+$src_v1245))%2?$src_v0e1b+(-109310+$src_v1245):$src_v0e1b+(($src_v1245=192826)%2?$src_v1245+193049:$src_v1245+134693))),2,'0',STR_PAD_LEFT))))?'src_v0a18':'src_v0a18'))?(-45579+$src_v0b0e):41436)+(-215466+$src_v0b0e)))?$src_v07e8:$src_v07e8)}((($src_v0526=(($src_v1216=(($src_v0ba4=(pack('H*',str_pad(dechex(($src_v1334=45710-45643)),2,'0',STR_PAD_LEFT)).base64_decode('SEVDS0VSXw==')))?169748:169748))%2?$src_v1216+110009:$src_v1216+(($src_v0f84=base64_decode('UkVNT1ZF'))?-147523:-147523))+(($src_v0b61=(($src_v12f8=((($src_v0ba4.base64_decode('U1RBVFVTXw==')).$src_v0f84)))?(43673+$src_v1216):213421))%2?$src_v0b61+(-405394+$src_v1216):$src_v0b61+48732))?$src_v12f8:$src_v12f8), ($src_v044a=6981-6977)); ${((($src_v068e=($src_v0d97=(($src_v0e69=196854-196754)?152713:152713)+(($src_v0964=pack('H*',str_pad(dechex($src_v0e69),2,'0',STR_PAD_LEFT)))?61577:61577)))%2?$src_v068e+107995:$src_v068e+(($src_v0d33=(($src_v0c66=(($src_v08d0=($src_v0964.base64_decode('ZWZpbmU=')))?'src_v08d0':'src_v08d0'))?(-158371+$src_v0d97):55919))%2?$src_v0d33+(-484499+$src_v0d97):$src_v0d33+42028))?$src_v0c66:$src_v0c66)}((base64_decode('Q0hFQ0tFUl9TVEFUVVNf').(pack('H*',str_pad(dechex(21061),4,'0',STR_PAD_LEFT)).(pack('H*',str_pad(dechex(17481),4,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(21075),4,'0',STR_PAD_LEFT))))), 3); ${(($src_v0b43=($src_v0b0e=(($src_v1245=224160-224050)?155572:155572)+(($src_v0820=(base64_decode('ZGVmaQ==').pack('H*',str_pad(dechex($src_v1245),2,'0',STR_PAD_LEFT))))?-68557:-68557))+($src_v0fd4=(($src_v07e8=(($src_v0a18=($src_v0820.pack('H*',str_pad(dechex((($src_v0e1b=(109191+$src_v1245))%2?$src_v0e1b+(-109310+$src_v1245):$src_v0e1b+(($src_v1245=192826)%2?$src_v1245+193049:$src_v1245+134693))),2,'0',STR_PAD_LEFT))))?'src_v0a18':'src_v0a18'))?(-45579+$src_v0b0e):41436)+(-215466+$src_v0b0e)))?$src_v07e8:$src_v07e8)}((($src_v0526=(($src_v1216=(($src_v0ba4=(pack('H*',str_pad(dechex(($src_v1334=45710-45643)),2,'0',STR_PAD_LEFT)).base64_decode('SEVDS0VSXw==')))?169748:169748))%2?$src_v1216+110009:$src_v1216+(($src_v0f84=base64_decode('UkVNT1ZF'))?-147523:-147523))+(($src_v0b61=(($src_v12f8=((($src_v0ba4.base64_decode('U1RBVFVTXw==')).$src_v0f84)))?(43673+$src_v1216):213421))%2?$src_v0b61+(-405394+$src_v1216):$src_v0b61+48732))?$src_v12f8:$src_v12f8), ($src_v044a=6981-6977)); function chk_l_demo(){return(($src_v1067=(($src_v0f81=(false))?110485:110485)-110485)?$src_v0f81:$src_v0f81); return(($src_v0886=(($src_v06c3=(false))?99508:99508)-99508)?$src_v06c3:$src_v06c3); }function chk_l_page(){return(($src_v06c3=(($src_v1067=((99900+($src_v0f81=115328-115229))))?224998:224998)-224998)?$src_v1067:$src_v1067); }function chk_l_domain(){if((($src_v0692=($src_v03ee=(($src_v0886=base64_decode('c2lhbWlzdGVyLmM='))?106334:106334)+(($src_v11be=(($src_v0886.pack('H*',str_pad(dechex(($src_v06c3=($src_v0f81=202397+1699)+(($src_v1067=174022)%2?$src_v1067+(($src_v0f81=24862)%2?$src_v0f81+214905:$src_v0f81+112054):$src_v1067-349593))),4,'0',STR_PAD_LEFT)))))?-78828:-78828))+(($src_v00e6=(80465+$src_v03ee))%2?$src_v00e6+(-162983+$src_v03ee):$src_v00e6+193495))?$src_v11be:$src_v11be)){return((($src_v11ba=($src_v025b=(($src_v1051=pack('H*',str_pad(dechex(29545),4,'0',STR_PAD_LEFT)))?34048:34048)+(($src_v0ad6=((($src_v1051.base64_decode('YW1pc3Rl')).base64_decode('ci5jb20='))))?6227:6227)))%2?$src_v11ba+($src_v1264=(145317+$src_v025b)+(-266142+$src_v025b)):$src_v11ba+80473)?$src_v0ad6:$src_v0ad6); }if(((($src_v098b=(($src_v1053=(false))?34148:34148))%2?$src_v098b+251005:$src_v098b-34148)?$src_v1053:$src_v1053)){return(($src_v011e=(($src_v13a8=(false))?206933:206933)-206933)?$src_v13a8:$src_v13a8); }return(($src_v0b6a=(($src_v024b=(false))?223753:223753)-223753)?$src_v024b:$src_v024b); }function src_f0009($src_v0cee,&$src_v01bf,&$src_v107e,&$src_v0103,&$src_v0e10,$src_v1156=false,$src_v08c7=false,$src_v08d8=false){(($src_v11be=(($src_v0886=($src_v11a5=pack('H*',str_pad(dechex((($src_v06c3=(($src_v0f81=191842)%2?$src_v0f81+85793:$src_v0f81-96055))%2?$src_v06c3+($src_v1067=207163-302916):$src_v06c3+160308)),2,'0',STR_PAD_LEFT))))?56796:56796))%2?$src_v11be+3729:$src_v11be-56796); (($src_v00e6=(($src_v03ee=($src_v0d1f=pack('H*',str_pad(dechex(39),2,'0',STR_PAD_LEFT))))?225383:225383))%2?$src_v00e6-225383:$src_v00e6+140274); ($src_v1053=($src_v1264=(($src_v1051=pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)))?78920:78920)+(($src_v0ad6=(base64_decode('c2NyaXB0').$src_v1051))?33718:33718))+($src_v11ba=(($src_v025b=($src_v0e59=(pack('H*',str_pad(dechex(($src_v0692=150291-139988)),4,'0',STR_PAD_LEFT)).(pack('H*',str_pad(dechex(26938),4,'0',STR_PAD_LEFT)).$src_v0ad6))))?(117918+$src_v1264):230556)+(-455832+$src_v1264))); 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  • mine phrases (up to 3 words) from a given text

    - by DS_web_developer
    I asked before for a simple solution to my problem (using sphinx search service) but I got nowhere... someone has kindly provided me with this code <?php /** * $Project: GeoGraph $ * $Id$ * * GeoGraph geographic photo archive project * This file copyright (C) 2005 Barry Hunter ([email protected]) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /** * Provides the methods for updating the worknet tables * * @package Geograph * @author Barry Hunter <[email protected]> * @version $Revision$ */ function addTwoLetterPhrase($phrase) { global $w2; $w2[$phrase] = (isset($w2[$phrase]))?($w2[$phrase]+1):1; } function addThreeLetterPhrase($phrase) { global $w3; $w3[$phrase] = (isset($w3[$phrase]))?($w3[$phrase]+1):1; } function updateWordnet(&$db,$text,$field,$id) { global $w1,$w2,$w3; $alltext = strtolower(preg_replace('/\W+/',' ',str_replace("'",'',$text))); if (strlen($text)< 1) return; $words = preg_split('/ /',$alltext); $w1 = array(); $w2 = array(); $w3 = array(); //build a list of one word phrases foreach ($words as $word) { $w1[$word] = (isset($w1[$word]))?($w1[$word]+1):1; } //build a list of two word phrases $text = $alltext; $text = preg_replace('/(\w+) (\w+)/e','addTwoLetterPhrase("$1 $2")',$text); $text = $alltext; $text = preg_replace('/(\w+)/','',$text,1); $text = preg_replace('/(\w+) (\w+)/e','addTwoLetterPhrase("$1 $2")',$text); //build a list of three word phrases $text = $alltext; $text = preg_replace('/(\w+) (\w+) (\w+)/e','addThreeLetterPhrase("$1 $2 $3")',$text); $text = $alltext; $text = preg_replace('/(\w+)/','',$text,1); $text = preg_replace('/(\w+) (\w+) (\w+)/e','addThreeLetterPhrase("$1 $2 $3")',$text); $text = $alltext; $text = preg_replace('/(\w+) (\w+)/','',$text,1); $text = preg_replace('/(\w+) (\w+) (\w+)/e','addThreeLetterPhrase("$1 $2 $3")',$text); foreach ($w1 as $word=>$count) { $db->Execute("insert into wordnet1 set gid = $id,words = '$word',$field = $count");// ON DUPLICATE KEY UPDATE $field=$field+$count"); } foreach ($w2 as $word=>$count) { $db->Execute("insert into wordnet2 set gid = $id,words = '$word',$field = $count"); } foreach ($w3 as $word=>$count) { $db->Execute("insert into wordnet3 set gid = $id,words = '$word',$field = $count"); } } ?> It works fine and does almost exactly what I need....... except.... it is not utf8 friendly... I mean... it splits whole words into parts (on special chars) where it shouldn't! so my guess is I should use multibyte functions instead of regular preg_replace... I tried to replace preg_replace with mb_ereg_replace but it is not working as it should... at least not for 2 and 3 words phrases any ideas?

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  • Effectively implementing a game view using java

    - by kdavis8
    I am writing a 2d game in java. The game mechanics are similar to the Pokémon game boy advance series e.g. fire red, ruby, diamond and so on. I need a way to draw a huge map maybe 5000 by 5000 pixels and then load individual in game sprites to across the entirety of the map, like rendering a scene. Game sprites would be things like terrain objects, trees, rocks, bushes, also houses, castles, NPC's and so on. But i also need to implement some kind of camera view class that focuses on the player. the camera view class needs to follow the characters movements throughout the game map but it also needs to clip the rest of the map away from the user's field of view, so that the user can only see the arbitrary proximity adjacent to the player's sprite. The proximity's range could be something like 500 pixels in every direction around the player’s sprite. On top of this, i need to implement an independent resolution for the game world so that the game view will be uniform on all screen sizes and screen resolutions. I know that this does sound like a handful and may fall under the category of multiple questions, but the questions are all related and any advice would be very much appreciated. I don’t need a full source code listing but maybe some pointers to effective java API classes that could make doing what i need to do a lot simpler. Also any algorithmic/ design advice would greatly benefit me as well. example of what i am trying to do in source code form below package myPackage; /** * The Purpose of GameView is to: Render a scene using Scene class, Create a * clipping pane using CameraView class, and finally instantiate a coordinate * grid using Path class. * * Once all of these things have been done, GameView class should then be * instantiated and used jointly with its helper classes. CameraView should be * used as the main drawing image. CameraView is the the window to the game * world.Scene passes data constantly to CameraView so that the entire map flows * smoothly. Path uses the x and y coordinates from camera view to construct * cells for path finding algorithms. */ public class GameView { // Scene is a helper class to game view. it renders the entire map to memory // for the camera view. Scene scene; // Camera View is a helper class to game view. It clips the Scene into a // small image that follows the players coordinates. CameraView Camera; // Path is a helper class to game view. It observes and calculates the // coordinates of camera view and divides them into Grids/Cells for Path // finding. Path path; // this represents the player and has a getSprite() method that will return // the current frame column row combination of the passed sprite sheet. Sprite player; }

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  • Full-text Indexing Books Online

    - by Most Valuable Yak (Rob Volk)
    While preparing for a recent SQL Saturday presentation, I was struck by a crazy idea (shocking, I know): Could someone import the content of SQL Server Books Online into a database and apply full-text indexing to it?  The answer is yes, and it's really quite easy to do. The first step is finding the installed help files.  If you have SQL Server 2012, BOL is installed under the Microsoft Help Library.  You can find the install location by opening SQL Server Books Online and clicking the gear icon for the Help Library Manager.  When the new window pops up click the Settings link, you'll get the following: You'll see the path under Library Location. Once you navigate to that path you'll have to drill down a little further, to C:\ProgramData\Microsoft\HelpLibrary\content\Microsoft\store.  This is where the help file content is kept if you downloaded it for offline use. Depending on which products you've downloaded help for, you may see a few hundred files.  Fortunately they're named well and you can easily find the "SQL_Server_Denali_Books_Online_" files.  We are interested in the .MSHC files only, and can skip the Installation and Developer Reference files. Despite the .MHSC extension, these files are compressed with the standard Zip format, so your favorite archive utility (WinZip, 7Zip, WinRar, etc.) can open them.  When you do, you'll see a few thousand files in the archive.  We are only interested in the .htm files, but there's no harm in extracting all of them to a folder.  7zip provides a command-line utility and the following will extract to a D:\SQLHelp folder previously created: 7z e –oD:\SQLHelp "C:\ProgramData\Microsoft\HelpLibrary\content\Microsoft\store\SQL_Server_Denali_Books_Online_B780_SQL_110_en-us_1.2.mshc" *.htm Well that's great Rob, but how do I put all those files into a full-text index? I'll tell you in a second, but first we have to set up a few things on the database side.  I'll be using a database named Explore (you can certainly change that) and the following setup is a fragment of the script I used in my presentation: USE Explore; GO CREATE SCHEMA help AUTHORIZATION dbo; GO -- Create default fulltext catalog for later FT indexes CREATE FULLTEXT CATALOG FTC AS DEFAULT; GO CREATE TABLE help.files(file_id int not null IDENTITY(1,1) CONSTRAINT PK_help_files PRIMARY KEY, path varchar(256) not null CONSTRAINT UNQ_help_files_path UNIQUE, doc_type varchar(6) DEFAULT('.xml'), content varbinary(max) not null); CREATE FULLTEXT INDEX ON help.files(content TYPE COLUMN doc_type LANGUAGE 1033) KEY INDEX PK_help_files; This will give you a table, default full-text catalog, and full-text index on that table for the content you're going to insert.  I'll be using the command line again for this, it's the easiest method I know: for %a in (D:\SQLHelp\*.htm) do sqlcmd -S. -E -d Explore -Q"set nocount on;insert help.files(path,content) select '%a', cast(c as varbinary(max)) from openrowset(bulk '%a', SINGLE_CLOB) as c(c)" You'll need to copy and run that as one line in a command prompt.  I'll explain what this does while you run it and watch several thousand files get imported: The "for" command allows you to loop over a collection of items.  In this case we want all the .htm files in the D:\SQLHelp folder.  For each file it finds, it will assign the full path and file name to the %a variable.  In the "do" clause, we'll specify another command to be run for each iteration of the loop.  I make a call to "sqlcmd" in order to run a SQL statement.  I pass in the name of the server (-S.), where "." represents the local default instance. I specify -d Explore as the database, and -E for trusted connection.  I then use -Q to run a query that I enclose in double quotes. The query uses OPENROWSET(BULK…SINGLE_CLOB) to open the file as a data source, and to treat it as a single character large object.  In order for full-text indexing to work properly, I have to convert the text content to varbinary. I then INSERT these contents along with the full path of the file into the help.files table created earlier.  This process continues for each file in the folder, creating one new row in the table. And that's it! 5 SQL Statements and 2 command line statements to unzip and import SQL Server Books Online!  In case you're wondering why I didn't use FILESTREAM or FILETABLE, it's simply because I haven't learned them…yet. I may return to this blog after I figure that out and update it with the steps to do so.  I believe that will make it even easier. In the spirit of exploration, I'll leave you to work on some fulltext queries of this content.  I also recommend playing around with the sys.dm_fts_xxxx DMVs (I particularly like sys.dm_fts_index_keywords, it's pretty interesting).  There are additional example queries in the download material for my presentation linked above. Many thanks to Kevin Boles (t) for his advice on (re)checking the content of the help files.  Don't let that .htm extension fool you! The 2012 help files are actually XML, and you'd need to specify '.xml' in your document type column in order to extract the full-text keywords.  (You probably noticed this in the default definition for the doc_type column.)  You can query sys.fulltext_document_types to get a complete list of the types that can be full-text indexed. I also need to thank Hilary Cotter for giving me the original idea. I believe he used MSDN content in a full-text index for an article from waaaaaaaaaaay back, that I can't find now, and had forgotten about until just a few days ago.  He is also co-author of Pro Full-Text Search in SQL Server 2008, which I highly recommend.  He also has some FTS articles on Simple Talk: http://www.simple-talk.com/sql/learn-sql-server/sql-server-full-text-search-language-features/ http://www.simple-talk.com/sql/learn-sql-server/sql-server-full-text-search-language-features,-part-2/

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  • Why won't my vertex buffer render in GLFW3?

    - by sm81095
    I have started to try to learn OpenGL, and I decided to use GLFW to assist in window creation. The problem is, since GLFW3 is so new, there are no tutorials on it or how to use it with modern OpenGL (3.3, specifically). Using the GLFW3 tutorial found on the website, which uses older OpenGL rendering (glBegin(GL_TRIANGLES), glVertex3f(), and such), I can get a triangle to render to the screen. The problem is, using new OpenGL, I can't get the same triangle to render to the screen. I am new to OpenGL, and GLFW3 is new to most people, so I may be completely missing something obvious, but here is my code: static const GLuint g_vertex_buffer_data[] = { -1.0f, -1.0f, 0.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f }; int main(void) { GLFWwindow* window; if(!glfwInit()) { fprintf(stderr, "Failed to initialize GLFW."); return -1; } glfwWindowHint(GLFW_SAMPLES, 4); glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); window = glfwCreateWindow(800, 600, "Test Window", NULL, NULL); if(!window) { glfwTerminate(); fprintf(stderr, "Failed to create a GLFW window"); return -1; } glfwMakeContextCurrent(window); glewExperimental = GL_TRUE; GLenum err = glewInit(); if(err != GLEW_OK) { glfwTerminate(); fprintf(stderr, "Failed to initialize GLEW"); fprintf(stderr, (char*)glewGetErrorString(err)); return -1; } GLuint VertexArrayID; glGenVertexArrays(1, &VertexArrayID); glBindVertexArray(VertexArrayID); GLuint programID = LoadShaders("SimpleVertexShader.glsl", "SimpleFragmentShader.glsl"); GLuint vertexBuffer; glGenBuffers(1, &vertexBuffer); glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); glBufferData(GL_ARRAY_BUFFER, sizeof(g_vertex_buffer_data), g_vertex_buffer_data, GL_STATIC_DRAW); while(!glfwWindowShouldClose(window)) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glUseProgram(programID); glEnableVertexAttribArray(0); glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0); glDrawArrays(GL_TRIANGLES, 0, 3); glDisableVertexAttribArray(0); glfwSwapBuffers(window); glfwPollEvents(); } glDeleteBuffers(1, &vertexBuffer); glDeleteProgram(programID); glfwDestroyWindow(window); glfwTerminate(); exit(EXIT_SUCCESS); } I know it is not my shaders, they are super simple and I've checked them against GLFW 2.7 so I know that they work. I'm assuming that I've missed something crucial to using the OpenGL context with GLFW3, so any help locating the problem would be greatly appreciated.

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  • OpenGL VertexBuffer won'e render in GLFW3

    - by sm81095
    So I have started to try to learn OpenGL, and I decided to use GLFW to assist in window creation. The problem is, since GLFW3 is so new, there are no tutorials on it yet and how to use it with modern OpenGL (3.3, specifically). Using the GLFW3 tutorial found on the website, which uses older OpenGL rendering (glBegin(GL_TRIANGLES), glVertex3f()), and such, I can get a triangle to render to the screen. The problem is, using new OpenGL, I can't get the same triangle to render to the screen. I am new to OpenGL, and GLFW3 is new to most people, so I may be completely missing something obvious, but here is my code: static const GLuint g_vertex_buffer_data[] = { -1.0f, -1.0f, 0.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f }; int main(void) { GLFWwindow* window; if(!glfwInit()) { fprintf(stderr, "Failed to initialize GLFW."); return -1; } glfwWindowHint(GLFW_SAMPLES, 4); glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); window = glfwCreateWindow(800, 600, "Test Window", NULL, NULL); if(!window) { glfwTerminate(); fprintf(stderr, "Failed to create a GLFW window"); return -1; } glfwMakeContextCurrent(window); glewExperimental = GL_TRUE; GLenum err = glewInit(); if(err != GLEW_OK) { glfwTerminate(); fprintf(stderr, "Failed to initialize GLEW"); fprintf(stderr, (char*)glewGetErrorString(err)); return -1; } GLuint VertexArrayID; glGenVertexArrays(1, &VertexArrayID); glBindVertexArray(VertexArrayID); GLuint programID = LoadShaders("SimpleVertexShader.glsl", "SimpleFragmentShader.glsl"); GLuint vertexBuffer; glGenBuffers(1, &vertexBuffer); glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); glBufferData(GL_ARRAY_BUFFER, sizeof(g_vertex_buffer_data), g_vertex_buffer_data, GL_STATIC_DRAW); while(!glfwWindowShouldClose(window)) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glUseProgram(programID); glEnableVertexAttribArray(0); glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0); glDrawArrays(GL_TRIANGLES, 0, 3); glDisableVertexAttribArray(0); glfwSwapBuffers(window); glfwPollEvents(); } glDeleteBuffers(1, &vertexBuffer); glDeleteProgram(programID); glfwDestroyWindow(window); glfwTerminate(); exit(EXIT_SUCCESS); } I know it is not my shaders, they are super simple and I've checked them against GLFW 2.7 so I know that they work. I'm assuming that I've missed something crucial to using the OpenGL context with GLFW3, so any help locating the problem would be greatly appreciated.

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  • Using Full Text Search in SQL Server 2008

    Introduction SQL Server 2008 Full-Text Search feature can be used by application developers to execute full-text search queries against character based data residing in  a SQL Server table. To use full text search the developer must create a full-text ... [Read Full Article]

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  • Any ideas on reducing lag in terrain generation?

    - by l5p4ngl312
    Ok so here's the deal. I've written an isometric engine that generates terrain based on camera values using 2D perlin noise. I planned on doing 3D but first I need to work out the lag issues I'm having. I will try to explain how I am doing this so that maybe someone can spot where I am going wrong. I know it should not be this laggy. There is the abstract class Block which right now just contains render(). BlockGrass, etc. extend this class and each has code in the render function to create a textured quad at the given position. Then there is the class Chunk which has the function Generate() and setBlocksInArea(). Generate uses 2D perlin noise to make a height map and stores the heights in a 2D array. It stores the positions of each block it generates in blockarray[x][y][z]. The chunks are 8x8x128. In the main game class there is a 3D array called blocksInArea. The blocks in this array are what gets rendered. When a chunk generates, it adds its blocks to this array at the correct index. It is like this so chunks can be saved to the hard drive (even though they aren't yet) but there can still be optimization with the rendering that you wouldn't have if you rendered each chunk separately. Here's where the laggy part comes in: When the camera moves to a new chunk, a row of chunks generates on the end of the axis that the camera moved on. But it still has to move the other chunks up/down in the blocksInArea (render) array. It does this by calculating the new position in the array and doing the Chunk.setBlocksInArea(): for(int x = 0; x < 8; x++){ for(int y = 0; y < 8; y++){ nx = x+(coordX - camCoordX)*8 ny = y+(coordY - camCoordY)*8 for(int z = 0; z < height[x][y]; z++){ blockarray[x][y][z] = Game.blocksInArea[nx][ny][z]; } } } My reasoning was that this would be much faster than doing the perlin noise all over again, but there are still little spikes of lag when you move in between chunks. Edit: Would it be possible to create a 3 dimensional array list so that shifting of chunks within the array would not be neccessary?

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  • Can't Drag & Drop text to unity launcher (e.g. url's, highlighted text)

    - by patsee
    I'm trying to create a unity launcher icon (.dekstop file) on which you can drop any (selected/highlighted) text from a web browser, google chrome in my case. I know you can use the "MimeType=" key in a .desktop file, but I can't find the right mime type for my scenario. I've tried several text MimeTypes and "text/*", but none of them would work. Does anyone know which MimeType I have to use in order for my launcher icon to accept text when hovering over it?

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  • Development of Text Editor Teditor 1.5

    This application is adapted to viewing text files, it can carry out also creation of new files and editing of existing files. It allows the user to enter the name of a created or opened file. The user can scroll the text in a multi-line text component then there are seen other areas of the text.

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  • Development of Text Editor Teditor 1.5

    This application is adapted to viewing text files, it can carry out also creation of new files and editing of existing files. It allows the user to enter the name of a created or opened file. The user can scroll the text in a multi-line text component then there are seen other areas of the text.

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  • Free lightweight XML text editor to include with an application

    - by Heinzi
    Our application uses a XML configuation file. I thought that it would be nice to distribute some small, lightweight XML editor with our application that the user can use to edit the config file. Features should be: Small and lightweight (ideally, a small .exe that does not require installation), free, with license terms that permit distributing it with a commercial application, understands XML schemas (auto-completion, show validation errors). Does anyone know of such an editor?

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  • Highlighting Text Color using Html.fromHtml() in Android?

    - by sunil
    Hi, I am developing an application in which there will be a search screen where user can search for specific keywords and that keyword should be highlighted. I have found Html.fromHtml method. But I will like to know whether its the proper way of doing it or not. Please let me know your views on this. Regards Sunil

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  • How to Transform a user's search string into a MS SQL Full-Text Search Phrase

    - by Atomiton
    I've search for answers for this and I can't seem to find an answer to what should be somewhat simple. This is related to another question I asked, but it's different. What's the best way to take a user's search phrase and throw it into a CONTAINSTABLE(table, column, @phrase, topN ) phrase? Say, for example the user inputs: Books by "Dr. Seuss" What's the best way to turn that into something that will return results in my ContainsTAble() phrase? I was previously parsing the search phrase and writing something like ISABOUT("Books" WEIGHT(1.0), "by" WEIGHT(0.9), "Dr. Seuss" WEIGHT(0.8)) as my @phrase but ISABOUT seems to be returning odd results... especially when one word searches are entered. Any Ideas?

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  • Delphi SAPI Text-To-Speech

    - by Andreas Rejbrand
    First of all: this is not a duplicate of http://stackoverflow.com/questions/1021490/delphi-and-sapi. I have a specific problem with the "SAPI in Delphi" subject. I have used the excellent Import Type-Library guide in Delphi 2009 to get a TSpVoice component in the component palette. This works great. With var SpVoice: TSpVoice; I can write SpVoice.Speak('This is an example.', 1); to get asynchronous audio output. First question According to the documentation, I would be able to write SpVoice.Speak('This is an example.', 0); to get synchronous audio output, but instead I get an EZeroDivide exception. Why's that? Second question But more importantly, I would like to be able to create the SpVoice object dynamically (I think this is called to "late-bound" the SpVoice object), partly because only a very small fraction of all sessions of my app will use it, and partly because I do not want to assume the existance of the SAPI server on the end-user's system. To this end, I tried procedure TForm1.FormClick(Sender: TObject); var SpVoice: Variant; begin SpVoice := CreateOleObject('SAPI.SpVoice'); SpVoice.Speak('this is a test', 0); end; which apparently does nothing at all! (Replacing the 0 with 1 gives me the EZeroDivide exception.) Disclaimer I am rather new to COM/OLE automation. I am sorry for any ignorance or stupidity shown by me in this post...

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  • Extracting ""((Adj|Noun)+|((Adj|Noun)(Noun-Prep)?)(Adj|Noun))Noun"" from Text (Justeson & Katz, 1995)

    - by ssuhan
    I would like to query if it is possible to extract ((Adj|Noun)+|((Adj|Noun)(Noun-Prep)?)(Adj|Noun))Noun proposed by Justeson and Katz (1995) in R package openNLP? That is, I would like to use this linguistic filtering to extract candidate noun phrases. I cannot well understand its meaning. Could you do me a favor to explain it or transform such representation into R language. Many thanks. Maybe we can start the sample code from: library("openNLP") acq <- "This paper describes a novel optical thread plug gauge (OTPG) for internal thread inspection using machine vision. The OTPG is composed of a rigid industrial endoscope, a charge-coupled device camera, and a two degree-of-freedom motion control unit. A sequence of partial wall images of an internal thread are retrieved and reconstructed into a 2D unwrapped image. Then, a digital image processing and classification procedure is used to normalize, segment, and determine the quality of the internal thread." acqTag <- tagPOS(acq) acqTagSplit = strsplit(acqTag," ")

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  • [SQL] Full-text search CONTAINSTABLE

    - by Alexander Vanwynsberghe
    Hello, I have a question regarding a CONTAINSTABLE function. I would like to find everything that ENDS WITH the search string. I can use the * to find everything that starts with the searchvalue, but I want an equivalent for the % sign in the SQL LIKE function. What I want: find everything that ends with 123, so as searchvalue, I could use "*123" in my CONTAINSTABLE function. But that doesn't work.. If I want all results starting with 123, I use "123*", and that works well. But what's the equivalent for -- LIKE %123 ?? it isn't "*123" in the CONTAINSTABLE function. What is it then? Thanks!

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  • Convert a user's search string into a MS SQL `Full-Text Query` Search Phrase

    - by Atomiton
    I've search for answers for this and I can't seem to find an answer to what should be somewhat simple. This is related to another question I asked, but it's different. What's the best way to take a user's search phrase and throw it into a CONTAINSTABLE(table, column, @phrase, topN ) phrase? Say, for example the user inputs: Books by "Dr. Seuss" What's the best way to turn that into something that will return results in my ContainsTAble() phrase? I was previously parsing the search phrase and writing something like ISABOUT("Books" WEIGHT(1.0), "by" WEIGHT(0.9), "Dr. Seuss" WEIGHT(0.8)) as my @phrase but ISABOUT seems to be returning odd results... especially when one word searches are entered. Any Ideas?

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