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ZoomTime - method of object TrendsView

Description:
Change of the range, the viewer zoom on time scale.
Syntax:
ZoomTime(nType As Long, nFixed As Long, vPar1 As Variant, vPar2 As Variant)
Calling:
oTView.ZoomTime nType, nFixed, vPar1, vPar2
Parameters:
nType(Long) Type of setting the range. See the configurator "Range of time axis [sec]".
1 - vPar1, vPar2 is a new time of the left and right viewer edge (Date data type).

If a relative time interval is displayed by 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 the time must be set explicitely with stating the data type, oTView.ZoomTime(1, 0, CDate(0), CDate(10/24/3600)), which 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 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 vPar1, 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. There is a new range in vPar1, 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 vPar2 to 0.
nFixed(Long) Specification of the fixed part while zooming
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) New time of the left edge or the multiple value - according to setting nType.
vPar2(Variant) New time of the right edge or the multiple value - according to setting nType.
Note:
It is used only when the graph mode is set.
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