private void CheckVisualMap(VisualMap visualMap)
{
if (visualMap == null || !visualMap.enable || !visualMap.show)
{
return;
}
Vector2 local;
if (chart.canvas == null)
{
return;
}
if (!chart.ScreenPointToChartPoint(Input.mousePosition, out local))
{
if (visualMap.runtimeSelectedIndex >= 0)
{
visualMap.runtimeSelectedIndex = -1;
chart.RefreshChart();
}
return;
}
if (local.x < chart.chartX || local.x > chart.chartX + chart.chartWidth ||
local.y < chart.chartY || local.y > chart.chartY + chart.chartHeight ||
!visualMap.IsInRangeRect(local, chart.chartRect))
{
if (visualMap.runtimeSelectedIndex >= 0)
{
visualMap.runtimeSelectedIndex = -1;
chart.RefreshChart();
}
return;
}
var pos1 = Vector3.zero;
var pos2 = Vector3.zero;
var halfHig = visualMap.itemHeight / 2;
var centerPos = chart.chartPosition + visualMap.location.GetPosition(chart.chartWidth, chart.chartHeight);
var selectedIndex = -1;
double value = 0;
switch (visualMap.orient)
{
case Orient.Horizonal:
pos1 = centerPos + Vector3.left * halfHig;
pos2 = centerPos + Vector3.right * halfHig;
value = visualMap.min + (local.x - pos1.x) / (pos2.x - pos1.x) * (visualMap.max - visualMap.min);
selectedIndex = visualMap.GetIndex(value);
break;
case Orient.Vertical:
pos1 = centerPos + Vector3.down * halfHig;
pos2 = centerPos + Vector3.up * halfHig;
value = visualMap.min + (local.y - pos1.y) / (pos2.y - pos1.y) * (visualMap.max - visualMap.min);
selectedIndex = visualMap.GetIndex(value);
break;
}
visualMap.runtimeSelectedValue = value;
visualMap.runtimeSelectedIndex = selectedIndex;
chart.RefreshChart();
}
