levabala / d3-painting Goto Github PK

In 'sunis.html' I have got a function of changing the base X value together with scrolling wheel. Now I would like to do the same for axis values and I have did it but there are some inaccuracies in coincidence of values. Than more scrolling the more inaccuracy.

The code:

// function interpolate values on the X axis
        var scaleX = d3.scale.linear()
                .domain([0, maxX])
                .range([0, xAxisLength]);
        var scaleY = d3.scale.linear()
                .domain([-centerCoef/200, 2 - centerCoef/200])
                .range([0, yAxisLength]);

centerCoef is value that contain the position of zero axis X of the graph.

        var value = (array[i] * 100) * scroolLevel + centerCoef;

This is calculation of position of the point's Y in the graph.