C/C++ :: (OpenGL) Drawing Not Updated When There Is Conditional In Code
Aug 1, 2014
I'm making a program to draw a trajectory, was using as a basis the tangent, but when I put 90 degrees, the tangent is very large, so I thought of putting an if (angle == 90) did not use the tangent.
the design is right, but after choosing it 90 degrees it stops to draw.
for example
1-30 degrees - draws
2-45 degrees ---- draws
3 draws -90 degrees ---
4-60 degrees --- not drawing
5 --- 80 degrees --- not drawing
*
*
For my code, I am getting a value for lengths of x, y and z like "getXlength(x_length)" etc... I would like to know how I can use these values to draw the prism rather than giving values for each coordinates in each face.
how to get opengl working in code blocks? I have tried putting in the libraries and such in the correct folder. But I get an error saying that glut32.dll could not be found. I am running a 10.5 code blocks
(Then i have the glew.h that is about 17000 lines of code)
I get this errors:
c:archivos de programacodeblocksmingwin..libgccmingw324.7.1........includeGLglew.h|84|error: #error gl.h included before glew.h| c:archivos de programacodeblocksmingwin..libgccmingw324.7.1........includeGLglew.h|1793|error: 'GLchar' does not name a type| c:archivos de programacodeblocksmingwin..libgccmingw324.7.1........includeGLglew.h|1804|error: 'GLchar' has not been declared|
I have two cpp files.I m updating a value of an integer in one cpp file and i want to perform a specific function in the second file as per to the value updated in the first file. ie I m initialing the variable in the constructor. I have two buttons in the first cpp file. On clicking the first button I m updating the variable as 1 and on pressing button two , I m updating the variable as 2. I m retrieving this variable in the second cpp file with respect to the object created for the class in the first cpp file.
The problem is that i m not able tot retrieve the updated value in the second file. only the initialized value is being retrieved. neither 1 nor 2 is updated.
//user list view da = new SqlDataAdapter("SELECT * FROM [user]", con); DataTable t = new DataTable(); ds = new DataSet(); da.Fill(ds); t = ds.Tables[0]; listView1.View = View.Details;
[Code] ....
I tried with datagridview.refresh, update but its not working can any body sugesst me what to do for refresing the data ....do timer we have to use..? if yes then how ...?
but how do you use an array as the condition, how will the code look?For example i want to write
Code:
string numbers[5] = {"one","two","three","four","five"}; numbers == "one" ? thumb : again; thumb and again will replace something else. Don't worry about them.
how do i say that if the numbers array is representing "one" then it replaces as "thumb", otherwise "again".
So I think I am having syntactical problem with my code.
Code: int main() { vector<int> ivec; int score; [Code] ....
I get an error from my compiler on the ?10th? line (Nested condition line) that says |19|error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'|
The purpose of the program is to take input and store it in a vector and then change the value to be between 1-6. I made this for the purpose of learning about nested conditional operations.
The program will be reading in a .csv file, so I need my program to be able to deal with values separated by commas. Is there a reason why it will not accept that conditional statement?
I have a CMFCToolbar containing a CMFCComboBoxButton which needs to be updated via a view. The view correctly updates the selection of the ComboBoxButton however the edit window is not updated until the control receives the focus or the entire window is redrawn.
How can I force the redrawing of the control to show the updated selection via the view
I'm playing with my final year project, building a game boy emulator in C, and I wanted to try out something to streamline my code base. I'm building against Win32, GNU C and Googles Native Client.There are no platform specific headers or functions in use. What I'm trying to do is have a file that conditionally includes the entry point (so _tmain for Windows etc) based on a preprocessor directive being set/not-set.
[note] I realise I could write both entry point classes in one file and use the preprocessor directive in there, but it's not as neat as a single file calling in one or the other. I figure this should work because I can conditionally include headers for Win/NaCl (providing the signatures match, of course).
It should exit the while loop after hitting line 6. What happens however is that it goes into a perpetual loop and doesnt exit the while loop upon reading line 6.
What I did was changed the code to:
Code: while (lineread != "*") { getline(ifs,lineread); } and the input file to: 27 GC0123456 102905908801170-- 2034068010201360 3039077011601400 4043086012901400
[code]....
and finally it stops after line 6. In this case, merely changing the " " conditional character to a simple asterisk character "*" fixes the problem.
However I wish to keep the input text file as is with the newlines, so how do I make it exit the while loop when detecting a as a line?
I am getting this message from Valgrind, As far as I can see what it points to is initialized. The memory it is referring to is freed in unload and I was not getting this error until after I added the check function. Valgrind was happy. Here is the code and the error message from Valgrind. I am trying to create a spell checker for an assignment for a online class I am taking. I just want to get this table working correctly before I add it to the rest of the program. The code seems to run fine but I have come to see that dos not mean much in C.
arortell@gentoo ~/Development/Projects/C_Projects/Data_Structures/HashTable $ valgrind --leak-check=full --track-origins=yes ./hashTable ==11360== Memcheck, a memory error detector ==11360== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==11360== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info ==11360== Command: ./hashTable
I want to do conditional compilation based on whether it is windows 7 or windows 8. Here is the code below.
#if (_WIN32_WINNT >= 0x0602) //Condition to check whether it windows 7 or 8 .Based on this we can load msxml 3 or 6. #import <msxml6.dll> #else #import <msxml3.dll> #endif
Im building the above code in windows 8 machine.
Issue here is _WIN32_WINNT should have a value 0x0602, it means it is running in windows 8 machine.Instead it has a value 0x0601 (Means it is taking windows version as windows 7 defined in sdkddkver.h).Im not sure after installing windows 8 sdk im not able to see any include or lib files in the path below C:Program Files (x86)Microsoft SDKsWindowsv8.0A . but i can see all include and lib files of sdk version v7.0A available although i did not installed it.
I have airport class which should navigate planes, in its list to runways, with method move, theres a method prepare which changes the direction of flight to all planes, always before move is called, move just increments decrement x and y of plane in its list. But after calling two times in row airport->move(), I get screwed and I really dont know wheres the problem. Have I badly initiazed something? Iterator gets invalidated.
Valgrind Stacktrace Conditional jump or move depends on uninitialised value(s) ==26207== at 0x409601: plane::move() (in /home/xnovak11/Downloads/airport/main) ==26207== by 0x401FBD: airport::move() (in /home/xnovak11/Downloads/airport/main) ==26207== by 0x405FE1: io::start(std::istream&, std:stream&, std:stream&) (in /home/xnovak11/Downloads/airport/main)
This is the method where it fails. When I call it once, no problem, after second call I get instead of normal number in cout<<after move<< s1 i get like 8795456 ....
I'm in the beginning stages of designing my first video game using SDL, and have run into a bit of an impasse. I attempt to draw the map using a simple tile function and nothing prints to the screen. I am going to attach the function itself.
bool Tile::draw_tiles ( void ) { GV gv;
//Open the map std::ifstream map ( "test.map" ); for ( int y = 0; y < GV::MAP_HEIGHT / 64; y++ ) { for ( int x = 0; x < GV::MAP_WIDTH / 64; x++ ) {
[Code] ....
Extra notes: 1. Compiles fine. 2. No run time errors (this function returns true). 3. Apply surface is a function that takes an x and y value for position on the map, an image, a screen to print it to, and a rectangle to cut out the image out of. 4. I did some bug testing and added another function to print the image SDLS_tiles by itself (its just a simple sprite map) after the map.close() function, and it worked fine.
i have to make an application called " paint " in c++ . It should facilitate user to draw different shapes using a mouse. Now the biggest hurdle i am facing is the usage of mouse .. what is the header file for usage of mouse ? i am using visual studio 2010 . the syntax is creating problems ..
Found a good beginner's tutorial to learn Visual C++: [URL] ....
How to change the drawing so that instead of squares, the game draws circles. Can figure out that using Ellipse in the code results in circle outlines, but the fill remains as square color shapes.
The drawing code from the tutorial is below. How to substitute filled circles for filled squares.
Code:
// CSameGameView drawing void CSameGameView::OnDraw(CDC* pDC){ // First get a pointer to the document CSameGameDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); if(!pDoc)
