_C++OpenGL.pptVIP

Draw Object void display(void) { glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glClear (GL_COLOR_BUFFER_BIT); glColor3f (1.0, 1.0, 1.0); glTranslated(x,y,z); glRotated(xAngle,1,0,0); glRotated(yAngle,0,1,0); glScaled(scale,scale,scale); * Draw Object glBegin(GL_TRIANGLES); glVertex3f (0, 0, 0.0); glVertex3f (75, 0, 0.0); glVertex3f (75, 75, 0.0); glEnd();//结束绘图 glFlush ();//刷新 } * glTranslated void?glTranslated(GLdouble ?x,?GLdouble ?y,?GLdouble ?z); x,?y,?zSpecify the?x,?y, and?z?coordinates of a translation vector. * glRotated void?glRotated(GLdouble ?angle,?GLdouble ?x,?GLdouble ?y,?GLdouble ?z); angle: Specifies the angle of rotation, in degrees. x,?y,?z: Specify the?x,?y, and?z?coordinates of a vector, respectively. * glScaled void?glScaled(GLdouble ?x,?GLdouble ?y,?GLdouble ?z) x,?y,?z: Specify scale factors along the?x,?y, and?z?axes, respectively. * Result * Color, lighting and texture Read references NeHe lesson 03,06,07. Web site: / You can download glut code for NeHe lesson * Other issues The?stdlib.h?which ships with the recent versions of Visual Studio has a different (and conflicting) definition of the?exit()?function. It clashes with the definition in?glut.h. For example: #include glut.h #include iostream using namespace std; * Other issues Override the definition in glut.h with that in stdlib.h. Place the stdlib.h (or cstdlib) line above the glut.h line in your code. For example： #include cstdlib #include glut.h #include iostream using namespace std; * OpenGL programming using C++ Class Point——Point.h, Point.cpp Color——Color.h, Color.cpp Trangle——Trangle.h, Trangle.cpp Test Code main.cpp Keyboard controll w,a,s,d: move trangle 1,2: scale trangle 3,4: rotate trangle * Class Declaration and Implementation See the project “OpenGL_C++” * Discussion In function “void Trangle::draw()”, if glPushMatrix() and glPopMatrix() are removed, what will be happen? Is it safe to call default constructor and default “=“ i