| nType | (Long) Type of setting the range. See the "Range of the time axis" configurator. 1 - vPar1, vPar2 is a new time of the left and right viewer edge (of the Date type).
If a relative time is displayed on the time axis (the date is not shown, on the time axis there is the time, for example from 0 sec to 10 sec), then it is necessary to set the time explicitely: oTView.ZoomTime(1, 1, 0, 10/24/3600)= corresponds to the range of the time axis from 0 to 10 seconds. 10,11 - Decrease, increase of the range automatically according to the table.
Set vPar1, vPar2 parameters to 0. 20 - Change of the zoom with the preservation of the time according to nFixed parameter.
There is the multiple of the time axis current length in the vPar1 parameter, for example 2=increasing the range, 0.5=decreasing the range. Set vPar2 to 0. 21 - Change of the zoom with the preservation of the time according to nFixed parameter.
There is a new range in the vPar1 parameter, a real number that refers to the multiple of the days number, is entered, for example 2 means the range of 2 days, 0.5 means the range of 12 hours, 1/24/60 means the range of 1 minute, etc. Set the vPar2 parameter to 0. |
|---|---|
| nFixed | (Long) Specifies the fixed part while zooming.
If it is nType=1 then the value of the nFixed parameter is not used. 1 - Zoom with the preservation of the left edge time 2 - Zoom with the preservation of the right edge time 3 - Zoom with the preservation of the center time 4 - Zoom with the preservation of the cursor time |
| vPar1 | (Variant) The meaning according to setting nType. |
| vPar2 | (Variant) The meaning according to setting nType. |
var
oTView = pMe.Items("../TrendView");
oTView.ZoomTime(1, 1, Pm.Time - 1/24/6, Pm.Time);
oTView.Draw();
var
oTView = pMe.Items("../TrendView");
oTView.ZoomTime(21, 1, 1/24, 0);
oTView.Draw();