3.9.9 Chart

Method on mglGraph (C++, Python): void Chart (const mglData &a, const char *col="")

C function: void mgl_chart (HMGL gr, const HMDT a, const char *col)

The function draws colored stripes (boxes) for data in array a. The number of stripes is equal to the number of rows in a (equal to a.ny). The color of each next stripe is cyclically changed from colors specified in string col or in palette Pal (see section Pallete and colors). Spaces in colors denote transparent “color”, i.e. if col contain space(s) then corresponding stripe(s) are not drawn. The stripe width is proportional to value of element in a. Chart is plotted only for data with non-negative elements. If string col have symbol ‘#’ then black border lines are drawn. The most nice form the chart have in 3d (after rotation of coordinates) or in cylindrical coordinates (becomes so called Pie chart). See section Chart sample, for sample code and picture.