The axis values are calculated automatically at the minValue, maxValue, and
1/4 increments of the axis between them (ex: 0, 25, 50, 75, 100). I wrote a
function that calculates the maxValue based on a given largest value in the
series, minimum axis value, and whether the scale is linear or logarithmic
/* this function finds the smallest integer value >= val that gives integer
values for the
* 25%, 50%, and 75% axis increments, given a minimum value of min
* parameters:
* val = the value to start at
* min = the minimum axis value
* log = boolean, true if the axis has a logarithmic scale
* returns the max axis value
*/
function findMaxAxisValue(val, min, log) {
var max = Math.ceil(val);
if (log) {
while(Math.pow(max, 0.25) !== parseInt(Math.pow(max, 0.25))) {
max++;
}
}
else {
while ((max - min)/4 !== parseInt((max - min)/4)) {
max++;
}
}
return max;
}
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