Volcano! 12-29-2022 12:48 PM

[Greg_Deckler]

On the list of things you probably shouldn't be doing with Power BI and DAX, an erupting volcano animation using a Scatter Chart is quite likely extremely high on that list. But oh well, here it is, video and code are below:

Volcano = 
    VAR __xWidth = 60
    VAR __yHeight = 34
    VAR __Frames = 18
    VAR __Table = 
        FILTER(
            ADDCOLUMNS(
                GENERATE(
                    ADDCOLUMNS(
                        SELECTCOLUMNS(GENERATESERIES(1,__Frames,1),"Index",[Value]),
                        "Date",DATE(2023,1,1)+[Index]
                    ),
                    ADDCOLUMNS(
                        GENERATE(
                            SELECTCOLUMNS(GENERATESERIES(1,__xWidth,1),"x",[Value]),
                            SELECTCOLUMNS(GENERATESERIES(1,__yHeight,1),"y",[Value])
                        ),
                        "Size",.1,
                        "Color", 
                            SWITCH(TRUE(),
                                //explosion
                                [Index]>.723*__Frames && ( ( [y]>.618*__yHeight && [y]< 2*[Index] && [x] < [y] * 18/14 + .08333*__xWidth && [x]> -18/14 * ([y] - .7167*__xWidth))  ),
                                    TRUNC(RANDBETWEEN(7,10.99)),
                                //lava flow
                                [Index]>.556*__Frames && [y]<.647*__yHeight && [y]> 28-[Index] && [x] > [y] * 18/14 && [x]< -18/14 * ([y] - 1.4*__yHeight),
                                    IF(
                                        TRUNC(
                                            RANDBETWEEN(1,[Index]+1)
                                        ) < [Index] 
                                            && 
                                            TRUNC
                                                (RANDBETWEEN(1,[y])
                                            ) > 18-[Index],
                                        3, TRUNC(RANDBETWEEN(7,10.99))
                                    ),
                                //lava boil
                                [Index]>.334*__Frames && [y] > 21 && [y]<24 && [x]>28 && [x]<33, 
                                    IF(TRUNC(RANDBETWEEN(1,2.99))<2,TRUNC(RANDBETWEEN(7,10.99)),1),
                                //smoke
                                [Index]>.112*__Frames && ( ([Index]<.778*__Frames && [y]>.618*__yHeight && [y]<(.647*__yHeight)-(1-[Index]) && [x]>.233*__xWidth && [x]<.533*__xWidth && [y]>-14/18*[x]+.75*__xWidth) ),
                                    IF(TRUNC(RANDBETWEEN(1,2.99))<2,5,6),
                                //sky
                                [y] > .618*__yHeight || [y] > 14/18 * [x] || [y] > -14/18 * [x] + 1.4*__yHeight,
                                    IF(
                                        TRUNC(RANDBETWEEN(1,40.99))<40 || [y]<.794*__yHeight,1,
                                        IF([Index] < .8333*__Frames, 2, TRUNC(RANDBETWEEN(7,10.99)))
                                    ),
                                //volcano
                                3
                            )
                    )
                ),
                "UniqueKey", FORMAT([Index],"000") * 10000 + FORMAT([x],"00") * 100 + FORMAT([y],"00")
            ),
            [Color] <> 1
        )
RETURN
    __Table

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