4.3.1 Ranges (bounding box)

MGL command: xrange v1 v2

MGL command: yrange v1 v2

MGL command: zrange v1 v2

MGL command: crange v1 v2

Method on mglGraph: void SetRange (char dir, float v1, float v2)

C function: void mgl_set_range_val (HMGL gr, char dir, float v1, float v2)

Sets the range for ‘x’-,‘y’-,‘z’- coordinate or coloring (‘c’). See also ranges.

MGL command: xrange dat [add=off]

MGL command: yrange dat [add=off]

MGL command: zrange dat [add=off]

MGL command: crange dat [add=off]

Method on mglGraph: void SetRange (char dir, const mglData &dat, bool add=false)

C function: void mgl_set_range_dat (HMGL gr, char dir, const HCDT a, int add)

Sets the range for ‘x’-,‘y’-,‘z’- coordinate or coloring (‘c’) as minimal and maximal values of data dat. Parameter add=on shows that the new range will be joined to existed one (not replace it).

MGL command: ranges x1 x2 y1 y2 [z1=0 z2=0]

Method on mglGraph: void SetRanges (mglPoint p1, mglPoint p2)

Method on mglGraph: void SetRanges (float x1, float x2, float y1, float y2, float z1=0, float z2=0)

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

Sets the ranges of coordinates. If minimal and maximal values of the coordinate are the same then they are ignored. Also it sets the range for coloring (analogous to crange z1 z2). This is default color range for 2d plots. Initial ranges are [-1, 1].

Method on mglGraph: void SetRanges (const mglData &xx, const mglData &yy)

Method on mglGraph: void SetRanges (const mglData &xx, const mglData &yy, const mglData &zz)

Method on mglGraph: void SetRanges (const mglData &xx, const mglData &yy, const mglData &zz, const mglData &cc)

Sets the ranges of x-,y-,z-coordinates and coloring as minimal and maximal values of data xx, yy, zz, cc correspondingly.

MGL command: origin x0 y0 [z0=nan]

Method on mglGraph: void SetOrigin (mglPoint p0)

Method on mglGraph: void SetOrigin (float x0, float y0, float z0=NAN)

C function: void mgl_set_origin (HMGL gr, float x0, float y0, float z0)

Sets center of axis cross section. If one of values is NAN then MathGL try to select optimal axis position.

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