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- Overview
- Initializing a map
- Displaying a map
- Managing advanced parameters (WEBDEV)
- Map control functions
- Remarks
- Properties specific to Map controls
Manipulating Map controls programmatically
WINDEV, WEBDEV and WINDEV Mobile allow you to programmatically manipulate Map controls. To do so, use the variable of the Map control in the code. The variable of the Map control corresponds to the name of the Map control. This help page explains how to programmatically manipulate Map controls. Remark: Many WLanguage functions are specific to Map control management.. For more details, see Map control functions.
Displaying a map When a window containing a Map control is opened, a world map is automatically displayed: the map is centered on Europe, with a minimum zoom level. The last memorized position can be displayed by selecting the "Remember last position displayed" option in the "General" tab of the Map control description window.. In this case, the last location is displayed with the same zoom level. To show a specific location on the map, use: - or the MapDisplayPosition function: This function can be used with a specific position (geoPosition type variable) or on a town or monument..
For example:
MaPosition is geoPosition
MapDisplayPosition(CARTE_Position, MaPosition)
MapDisplayPosition(CARTE_Position, "Montpellier, France")
MapDisplayPosition(CARTE_Position, "Tour Eiffel")
- a direct assign command with a specific location. In this case, the location is displayed without animations.
Example:
MaPosition is geoPosition
CARTE_Position = MaPosition
Managing advanced parameters (WEBDEV) The WLanguage functions used with Map controls can be classified into several categories: - The functions used to manage the positions on the map:
| | | MapDisplayPosition | Centers the map displayed in a Map control on a geographical position or on a specific location. | | MapGetPosition | Returns the geographical position of the point located in the center of the map currently displayed in a Map control. | | MapInfoPosition | Returns the coordinates (in pixels) of the point corresponding to a geographical position (latitude and longitude). | | MapInfoXY | Returns the geographical position (latitude and longitude) corresponding to a point in a Map control. |
- The functions used to follow the movements of the device:
| | | MapEndOfMove | Stops following the device movement in a Map control. | | MapFollowMovement | Displays the current location of the device in a Map control and updates the location as it moves. |
- Functions for handling markers on the map. These functions use Marker variables to define all marker characteristics.
| | | MapAddMarker | Adds a new marker onto a map displayed in a Map control. | | MapDeleteAll | Deletes the following from a Map control: - all markers,
- use any shape you want,
- all images.
| | MapDeleteMarker | Deletes a marker from a map displayed by a Map control. | | MapModifyMarker | Modifies a marker displayed in a Map control. |
- Functions for handling routes on the map.
- Functions for additional Google Maps API options:
| | | MapConfigureGglAPI | Declares additional parameters for the Map control that will be transmitted to the Google API. | | MapExecuteJS | Runs the native code of Google Maps API in a Map control in JavaScript. | | MapGetJSObject | Returns the instance of the API of Map control. |
Remarks   geoRunApp is used to start the device's native maps application.
Properties specific to Map controls Use the following properties to programmatically manipulate Map controls: | | | MapMode | Gets or sets the map display mode in the Map control. | | Value | Centers the view at the position specified by the geoPosition variable. | | Zoom | Gets or sets the initial zoom level of the map. |
For a complete list of WLanguage properties that can be used with Map controls, see Map control properties.
This page is also available for…
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