Reference section

In table 1 you find functions that tell the GUI what kind of data is available to be visualized. The general notation contains Nx...xN_Rx...xR where the number of N indicate the dimensionality of the data array and the number of R indicate the dimensionality of the vector output. While there are a large number of possible combination, only a few are easily visualized, and special visualizations are implemented for each data type.

The second part of this table contains some default values that you can associate with each data type defined after calling these default functions. Currently these apply only to data types represented by curve2d_. The options that you can use here are listed in table 2.

Lastly there is the possibility of separating out different graph sections. This can be useful if you have too many data to be represented in the menu of one graph window. In these cases you can define new graphs structures, and the graphics windows refere to the data given by the current active graph.

function	description
`DefineGraphN_R(char Name,double gd,int dim,int req)`	Simple one dimensional arrays
`DefineGraphN_RxR(char Name,double gd,int dim,int req)`	One dimensional arrays of points (x,y).
`DefineGraphN_RxRp(char Name,double gd,int dim,int *req)`	Pointer to an one dimensional array of points. Needed if the size of the data field will be resized with `realloc()`.
`DefineGraphNxN_R(char Name,double gd, int dim1,int dim2,int *req)`	Two dimensional array.
`DefineGraphNxN_RxR(char Name,double gd, int dim1,int dim2,int *req)`	Two dimensional array of vectors.
`DefineGraphNxN_RxRxRt(char Name,double gd, int dim1,int dim2,int *req)`	Three dimensional field. Still waiting for the implementation of the 3 dimensional contour.
`DefineGraphContour3d(char Name,Contour gd, int dim1,int dim2,int dim3,int *req)`	A special data type to define contour, especially from a parallel program.
	In the DefineGraphXXX routines the last argument `*req` can be a `NULL` pointer if the data do not need to be recalculated.
`SetDefaultColor(int c)`	Default color for graphs defined after this command. See Table 2.
`SetDefaultLineType(int s)`	Default line type is 1 (solid line). 0 means no line.
`SetDefaultShape(int s)`	Default shape according to table 2.
`SetDefaultSize(double s)`	Default size is one.
`SetDefaultFill(int f)`	Default fill is off (0).
`NewGraph()`	Start a new set of graphs.
`SetActiveGraph(int)`	Set this before you call `DefineGraph()`.

Function	description
`StartMenu(char *Name,int installed)`	Start a new menu with name Name. It will be visible as you start the program if installed is 1
`StartBoolMenu(char Name,int b)`	This will also start a menu, but the menu is also a Boolean field (see below) with name Name and address *b. To change the value of b left click the button, to open the menu right click the button.
`EndMenu()`	Each menu has to be terminated by an `EndMenu()` command.
`DefineInt(char Name,int myint)`	Menu item of type int
`DefineLong(char Name,long myint)`	Menu item of type long
`DefineMod(char Name,int myint,int mod)`	Menu item of type int. The value is constraint to be between `0` and `mod-1`
`DefineBool(char Name,int myint)`	Integer that can only take the values 0 and 1. In the menu this is represented as ``off'' and ``on'' respectively.
`DefineDouble(char Name,double mydouble)`	Menu item of type double
`DefineFloat(char Name,float myfloat)`	Menu item of type float
`DefineString(char Name,char s,int maxlen)`	Menu item for a string with maximum length maxlen. There is a bug that still allows you to write strings longer than maxlen.
`DefineFunction(char *Name,fp myfp)`	This function allows you to call a function. This function may not have an argument.
`DefineItem(int vartype)`	This is a function to add special items like the print button (`print_` and `dopint_`), a close button (`close_`) or a Redraw button (`newdraw_`). You will probably not need to use these except maybe the `close_` option.
`DefineGraph(int vartype, char *Name)`	Adding buttons for different kinds of graphics with arguments given by table 5.

Type	numerical value	description
`curve2d_`	11	displays `N_R,N_RxR`, and `N_RxRp` data types as two dimensional curves.
`contour2d_`	9	displays `NxN_R` data types as density and contour plots and `NxN_RxR` data types as vector plots.
`graph2d_`	8	displays `NxN_R` data types as three dimensional graphs.
`contour3d_`	10	displays `NxNxN_R` data types as three dimensional contour plots. Not yet fully implemented.
`freedraw_`	25	Displaying the output of graphics routines you have written yourself, and have defined through AddFreedraw() (see Table 5).

function	description
`AddFreedraw(char *name, FrDr FreeDraw)`	Define a drawing function that you defined yourself of type `void Name(int xdim,int ydim)`. The size of the window you are drawing in is xdim,ydim. Note that these values change, as the user resizes the window.
`mydrawline(int color, int x1, int y1, int x2, int y2)`	Draws a line between the points and .
`mypolygon(int color, XPoint *points, int n)`	Draws a filled polygon of n XPoints
`mypolygon_line(int col, int colLine, XPoint *points, int n)`	Drasw a filled polygon of color col with an outline of color colLine.
`mylinepolygon(int col, XPoints *points, int n)`	As above, but only draws the outline.
`mycircle(int col, int x, int y, int r)`	Draws a circle around the point (x,y) with radius r in color col.
`myfilledcircle(int col, int x, int y, int r)`	Draws a filled circle around the point (x,y) with radius r in color col.
`mytext(int col, int x, int y, char *text, int orient)`	Draws the string `text` at position x with orientation 1:centered, 2:right, or left for all other values.
`myselectfont(int font, char *testtext, double length)`	Has to be called before the first `mytext` command! It selects a font such that the string will have approximately the length `length`. The first variable selects the kind of font, and should be set to 0 for now.