Projection Transformation (coordsystranslator)

Introduction

Demonstrate the projection conversion of Gaussian Kruger, UTM and LAMBERT, and see the effect of the projection conversion.

Operation effect

Figure: Projection Transformation Operation Effect

Location

Android Studio

  • Product package: Product package catalogue\SampleCode\SampleCode_AndroidStudio\AndroidStudioSampleCode\coordsystranslator

ADT

  • Product package: Product package catalogue\SampleCode\SampleCode_ADT\CoordSysTranslator

Data

Storage location

  • Product package: Product package catalogue\SampleData\CoordSysTranslator

Deployment Location

  • mobile device internal storage\SampleData\CoordSysTranslator

License

Offline license, copy the license file to the "mobile device internal storage\SuperMap\License" folder.

Library

jar
com.supermap.data.jar, com.supermap.mapping.jar, com.supermap.services.jar
so
libimb2d.so, libgnustl_shared.so, libQt5Core.so, libQt5Gui.so, libQt5Svg.so, libQt5Widgets.so(Note: Starting from version 11.1, the last five so libraries need to be added.)

Key types/members

Control/Class Method Event
Workspace open(), save()  
WorkspaceConnectionInfo setServer(), setType()  
Environment setLicensePath(), setTemporaryPath(), initialization()  
MapControl getMap() setOnTouchListener()
Map getLayers(), setCenter(), setScale(), refresh()  
Datasource getDatasets()  
Datasets get(int/name)(), contains(), create(), delete()  
DatasetVector setPrjCoordSys(), getRecordset()  
DatasetVectorInfo setName(), setType()  
PrjCoordSys setProjection(), setPrjParameter()  
CoordSysTranslator convert()  

Basic steps

  1. Click the button on the top of the screen to choose a projection for transforming;
  2. Two figures in the screen are different effects before and after transformation;
  3. Slide the bottom scroll bar to check the projected coordinate system before and after transformation.