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Drawing a pie chart Description This model defines a subroutine for drawing a pie chart for a given list of data values, with specified center position and radius and a title text. Further explanation of this example: 'Mosel Language Reference', Chapter 'mmsvg'
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pie.mos (!****************************************************** Mosel graph examples ==================== file pie.mos ```````````` Drawing a pie chart. Uses functions from the mmsvg library to draw a "User graph" in SVG format. (c) 2017 Fair Isaac Corporation Author: S. Heipcke, Jul. 2017, rev. Sep. 2017 *******************************************************!) model pie uses "mmsvg" declarations NP=8 PDATA: array(RP:range) of real PID: array(RP) of string end-declarations procedure drawpie(xpos, ypos: integer, rad: integer, data:array(R:range) of real, pids:array(range) of string, msg: text) if sum(i in R) data(i)>1 then writeln("Incorrect pie data.") return end-if ttl:=0.0 forall(i in R) do svgaddgroup(pids(i),"Pie slice "+i) svgsetstyle(SVG_STROKE,SVG_GREY) svgsetstyle(SVG_STROKEWIDTH,0.5) svgaddpie(pids(i), xpos, ypos, rad, ttl, ttl+data(i)) ttl+=data(i) end-do svgaddgroup("msg", "", SVG_GREY) svgaddtext(xpos, ypos+rad+20, msg) svgsetstyle(svggetlastobj, SVG_TEXTANCHOR, "middle") ! Draw the graph svgrefresh end-procedure ! Some random data and group IDs PDATA::(1..8)[0.2, 0.1, 0.12, 0.05, 0.23, 0.13, 0.075, 0.095] forall(i in RP) PID(i):="gp"+i ! Configure and draw the graphic svgsetgraphviewbox(0,0,200,200) drawpie(100, 100, 50, PDATA, PID, "Pie chart example") ! Optionally save graphic to a file svgsave("pie.svg") ! Wait for display window to close svgwaitclose("Close browser window to terminate model execution.", 1) end-model | |||||||||||
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