void Ruler::divideV(const int z, const int scale, void * font, const float trace, const int k)const{
char delta[5] = "";
const char base[]="";
int mult = - 1;
int scale2 = scale;
size_t i = scale;
int i2 = mult * i;
glBegin(GL_LINES);
glVertex3f( clsFirst.x + trace , clsFirst.y , z );//first trace
glVertex3f( clsFirst.x - trace , clsFirst.y , z );
glVertex3f( clsFirst.x + trace, clsLast.y, z );//last trace
glVertex3f( clsFirst.x - trace, clsLast.y, z );
glEnd();//end lines
sprintf(delta, "%s%.0f", base, 0.0);
DesenhaTexto(delta, clsFirst.x + trace, clsFirst.y- 1.25f , font);
sprintf(delta, "%s%.1f", base, (float)abs(clsFirst.y - clsLast.y)/scale*k);
DesenhaTexto(delta, clsLast.x+ trace , clsLast.y- 1.25f , font);
if( 0 > (clsFirst.y - clsLast.y)){
scale2 = - scale;
mult = 1;
i2 = mult * i;
}//set direction parameters
for(i; i<(abs(clsFirst.y - clsLast.y)); i+=scale){
i2 = mult * i;
sprintf(delta, "%s%.0f", base, (float)i*k/scale);
glBegin(GL_LINES);
glColor3f(1 , 1 , 1);
glVertex3f( clsFirst.x + trace, clsFirst.y +i2, z ); //big trace
glVertex3f( clsFirst.x - trace, clsFirst.y +i2, z );
glEnd();//end line
DesenhaTexto(delta, clsFirst.x + trace , clsFirst.y +i2 - 0.5f, font);//digit
}//end for
glBegin(GL_LINES);
glColor3f(1,1,1);
for(int j = clsFirst.y;(mult > 0 && j < clsLast.y) || (mult < 0 && j > clsLast.y) ; j+=(mult*scale/10)){
glVertex3f( clsFirst.x + trace/2, j , z );
glVertex3f( clsFirst.x , j , z );
}//end for little traces
glEnd();//end lines
}//end method
void DesenhaBotoes(){
int i;
for( i = 0; i < 4;i++){
glPushMatrix();
glTranslatef(0,(i*-30),0);
glColor3f(0.0,0.0,0.0);
glBegin(GL_QUADS);
glVertex2i( (widthJanela/2-10) , (heightJanela/2-5) );
glVertex2i( (widthJanela/2-10) , (heightJanela/2-25) );
glVertex2i( (widthJanela/2-105) , (heightJanela/2-25) );
glVertex2i( (widthJanela/2-105) , (heightJanela/2-5) );
glEnd();
DesenhaTexto(i);
glPopMatrix();
}
}