MapDisplayArea (Function)

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"Whenever changing the position" Map control event
Special cases

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MapDisplayArea (Function)

In french: CarteAfficheZone

Moves the map displayed in the Map control so that the specified geographic area can be seen in its entirety.

Example

p1 is geoPosition
p1.Latitude = 0
p1.Longitude = 0
p2 is geoPosition
p2.Latitude = 3
p2.Longitude = 3
MapDisplayArea(MAP_MyMap, p1, p2, True, procEndAnimation)

INTERNAL PROCEDURE procEndAnimation(bResult is boolean)
IF bResult = True THEN
ToastDisplay("Area displayed")
END
END

Syntax

<Result> = MapDisplayArea(<Map control> , <North West position> , <South East position> [, <Animation> [, <WLanguage procedure>]])

<Result>: Boolean

True if a request to change the position was made,
False otherwise. To get the details of the error, use ErrorInfo.

<Map control>: Control name

Name of the Map control to be used. If this parameter corresponds to an empty string (""), the Map control to which the current process belongs will be used.

<North West position>: geoPosition variable

Name of the geoPosition variable that corresponds to the North West point of the area to be displayed in the Map control.

<South East position>: geoPosition variable

Name of the geoPosition variable that corresponds to the South East point of the area to be displayed in the Map control.

<Animation>: Optional boolean

True (default value) if the area is to be displayed with an animation,
False otherwise.

<WLanguage procedure>: Optional procedure name

Name of the WLanguage procedure ("callback") called at the end of the animation. This procedure has the following format:

PROCEDURE <Procedure name> (<Displayed area>)

where <Displayed area> is a boolean:
True if the area could be displayed,
False otherwise (e.g., if the user moved the map during the animation).
If <Animation> is set to False, the procedure is not called.
This parameter is not available.

Remarks

"Whenever changing the position" Map control event

If the Map control moves to the specified area with an animation, the event "Whenever changing the position" will be run at the end of the animation..
If the user cancels the positioning on the Map control before the end of the animation, the event "Whenever changing the position" will not be run.

Special cases

The zoom level of the Map control can be set to change automatically when the position changes.
To center a map on a given position without animations, you can directly assign a Value variable to the geoPosition property of the Map control.
For example:

p1 is geoPosition
p1.Latitude = 3
p1.Longitude = 3
MAP_MyMap.Value = p1

Business / UI classification: UI Code

Component: wd270obj.dll