Result:
Mark the measure below as image URL:
Chart =
VAR Max_Value = MAXX ( ALLSELECTED ('table'),[KPI] )
VAR SVG ="
data:image/svg+xml;utf8,
<svg xmlns='http://www.w3.org/2000/svg' width='300' height='30'>
<polygon fill='deepskyblue'
points=' "
& 300 * [KPI] / Max_Value & ",15
0,0 0,30'
/>
</svg>"
RETURN
SVG