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11.26 Sample ‘cont_xyz’ ¶

Functions contz, conty, contx draw contour lines on plane perpendicular to corresponding axis. One of possible application is drawing projections of 3D field.

MGL code:

call 'prepare3d'
title 'Cont[XYZ] sample':rotate 50 60:box
contx {sum c 'x'} '' -1:conty {sum c 'y'} '' 1:contz {sum c 'z'} '' -1

C++ code:

void smgl_cont_xyz(mglGraph *gr)
{
	mglData c;	mgls_prepare3d(&c);
	if(big!=3)	gr->Title("Cont[XYZ] sample");
	gr->Rotate(50,60);	gr->Box();	gr->ContX(c.Sum("x"),"",-1);
	gr->ContY(c.Sum("y"),"",1);		gr->ContZ(c.Sum("z"),"",-1);
}