clean splom drag logic
clean splom drag logic

plotly/plotly.js,etpinard/plotly.js,aburato/plotly.js,asolagmbh/plotly.js,asolagmbh/plotly.js,plotly/plotly.js,etpinard/plotly.js,aburato/plotly.js,asolagmbh/plotly.js,plotly/plotly.js,etpinard/plotly.js,plotly/plotly.js