MapContext.mapToScreen

2025-04-29 08:32

Convert map coordinates to corresponding coordinates (latitude and longitude) on the screen.

Parameters

Property	Type	Required	Description
latitude	Number	Yes	The map latitude.
longitude	Number	Yes	The map longitude.
success	Function	No	The callback function that is called upon successful call.
fail	Function	No	The callback function that is called upon failed call.
complete	Function	No	The callback function that is called upon call completion (to be executed upon either call success or failure).

Success callback function

The parameters are in object type and have the following properties:

Property	Type	Description
x	Number	The corresponding X-coordinate on the screen.
y	Number	The corresponding Y-coordinate on the screen.

`fail` callback function

The parameter of the fail callback function is an object, where:

error : indicates the error code
errorMessage : indicates the error message.

Error code

Error code

Error message

Further action

Invalid parameters. For example, the data type is incorrect.

Fill in the correct parameters per the Parameters section.

Sample code

copy
Page({
    data: {
        mapCtx: ""
    },
    onReady() {
        this.data.mapCtx = my.createMapContext('map');
    },
    mapToScreen() {
        this.data.mapCtx.mapToScreen({
            latitude: 30.202041,
            longitude: 120.108257,
            success: res => {
                console.log('success', res);
            },
            fail: error => {
                console.log('fail', error);
            }
        });
    }
});