| public SetScaleFocused ( Vector2 focalPoint, Vector2 newScale ) : void | ||
| focalPoint | Vector2 | |
| newScale | Vector2 | |
| return | void | |
void SnapZoom(float newZoom)
{
var logScale = Mathf.Log10(newZoom);
var logMin = Mathf.Log10(minScale);
var logMax = Mathf.Log10(maxScale);
var shortestSliderDistance = System.Single.MaxValue;
if (logScale > logMin && logScale < logMax)
{
for (var i = 1; i <= maxScale; ++i)
{
// Snap distance is defined in points, so convert difference back to UI space
var sliderDistanceToI = kScaleSliderMaxWidth * Mathf.Abs(logScale - Mathf.Log10(i)) / (logMax - logMin);
if (sliderDistanceToI < kScaleSliderSnapThreshold && sliderDistanceToI < shortestSliderDistance)
{
newZoom = i;
shortestSliderDistance = sliderDistanceToI;
}
}
}
var areaInMargins = m_ZoomArea.shownAreaInsideMargins;
var focalPoint = areaInMargins.position + areaInMargins.size * 0.5f;
m_ZoomArea.SetScaleFocused(focalPoint, Vector2.one * newZoom);
}