/**
Concatenates scaling transformation onto the current one.
\param[in] x,y scale factors in x-direction and y-direction
*/
void fl_scale(double x,double y) {fl_mult_matrix(x,0,0,y,0,0);}
/**
Concatenates scaling transformation onto the current one.
\param[in] x scale factor in both x-direction and y-direction
*/
void fl_scale(double x) {fl_mult_matrix(x,0,0,x,0,0);}
/**
Concatenates translation transformation onto the current one.
\param[in] x,y translation factor in x-direction and y-direction
*/
void fl_translate(double x,double y) {fl_mult_matrix(1,0,0,1,x,y);}
/**
Concatenates rotation transformation onto the current one.
\param[in] d - rotation angle, counter-clockwise in degrees (not radians)
*/
void fl_rotate(double d) {
if (d) {
double s, c;
if (d == 0) {s = 0; c = 1;}
else if (d == 90) {s = 1; c = 0;}
else if (d == 180) {s = 0; c = -1;}
else if (d == 270 || d == -90) {s = -1; c = 0;}
else {s = sin(d*M_PI/180); c = cos(d*M_PI/180);}
fl_mult_matrix(c,-s,s,c,0,0);
}
}
On my propose they are transformed to:
/**
Concatenates scaling transformation onto the current one.
\param[in] x,y scale factors in x-direction and y-direction
*/
void Fl_Graphics_Driver::fl_scale(double x,double y)
{fl_mult_matrix(x,0,0,y,0,0);}
/**
Concatenates scaling transformation onto the current one.
\param[in] x scale factor in both x-direction and y-direction
*/
void Fl_Graphics_Driver::fl_scale(double x) {fl_mult_matrix(x,0,0,x,0,0);}
/**
Concatenates translation transformation onto the current one.
\param[in] x,y translation factor in x-direction and y-direction
*/
void Fl_Graphics_Driver::fl_translate(double x,double y)
{fl_mult_matrix(1,0,0,1,x,y);}
/**
Concatenates rotation transformation onto the current one.
\param[in] d - rotation angle, counter-clockwise in degrees (not radians)
*/
void Fl_Graphics_Driver::fl_rotate(double d) {
if (d) {
double s, c;
if (d == 0) {s = 0; c = 1;}
else if (d == 90) {s = 1; c = 0;}
else if (d == 180) {s = 0; c = -1;}
else if (d == 270 || d == -90) {s = -1; c = 0;}
else {s = sin(d*M_PI/180); c = cos(d*M_PI/180);}
fl_mult_matrix(c,-s,s,c,0,0);
}
}
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