4.2.5 Cutting

These variables and functions set the condition when the points are excluded (cutted) from the drawing. Note, that a point with NAN value(s) of coordinate or amplitude will be automatically excluded from the drawing. See section Cutting sample, for sample code and picture.

MGL command: cut val

Method on mglGraph: void SetCut (bool val)

C function: void mgl_set_cut (HMGL gr, int val)

Flag which determines how points outside bounding box are drawn. If it is true then points are excluded from plot (it is default) otherwise the points are projected to edges of bounding box.

MGL command: cut x1 y1 z1 x2 y2 z2

Method on mglGraph: void SetCutBox (mglPoint p1, mglPoint p1)

C function: void mgl_set_cut_box (HMGL gr, float x1, float y1, float z1, float x2, float y2, float z2)

Lower and upper edge of the box in which never points are drawn. If both edges are the same (the variables are equal) then the cutting box is empty.

MGL command: cut 'cond'

Method on mglGraph: void CutOff (const char *cond)

C function: void mgl_set_cutoff (HMGL gr, const char *cond)

Sets the cutting off condition by formula cond. This condition determine will point be plotted or not. If value of formula is nonzero then point is omitted, otherwise it plotted. Set argument as "" to disable cutting off condition.

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