Bresenham Algorithm for line drawing

Comments

Post a Comment

Popular posts from this blog

Installation steps for openGL on ubuntu

 GLUT it is open GL_U tility _T oolkit for openGL programming we need to install glut (pronounce as glat). Following are the steps to install GLUT on Ubuntu operating system. Step 1: sudo apt-get update               For updation of basic packages Step 2: sudo apt-get install build-essential               For installing essential packages. Step 3: sudo apt-get install freeglut3 freeglut3-dev               // its GL utility toolkit Step 4: sudo apt-get install binutils-gold             It is GNU gold linker utility.  Gold is a new linker, which is faster than the current linker included in binutils Step 5: sudo apt-get install g++ cmake         its a  Command-Line Reference.Users build a project b...
Read more

Second Assignment DDA algorithm for line drawing using Mouse

Image
Draw the polygons by using the mouse. Choose colors by clicking on the designed color pane. Use window port to draw. (Use DDA algorithm for line drawing) #include<string.h> #include<GL/glut.h> #define ROUND(x)((int)(x+0.5)) struct Point { GLint x; GLint y; }; struct Color { GLfloat r; GLfloat g; GLfloat b; }; Color getPixelColor(GLint x, GLint y)  //Fun for getting color of pixel {  Color color; glReadPixels(x,y,1,1,GL_RGB, GL_FLOAT, &color); return color; } void setPixelColor(GLint x, GLint y, Color color)   //set color of pixel {    glColor3f(color.r, color.g, color.b); glBegin(GL_POINTS); glVertex2i(x,y); glEnd(); glFlush(); } void floodFill(GLint x, GLint y, Color oldColor, Color newColor)//seed fill algorithm { Color color; color= getPixelColor(x,y); if(color.r == oldColor.r && color.g == oldColor.g && color.b == oldColor.b) { setPixelColor(x,y, newColor); floodFill(x+1,y, oldColor, newColor); floodFill(x,y+1, oldCol...
Read more