Perforce JViews Maps Sample: Drawing on Top of a Map
Description
 |
This sample shows how to place graphic objects on a map.
How to Use the Sample
- Create a polyline using the Polyline Annotation interactor button. You are asked to enter a label and a description. Description can be formatted using HTML tags.
- Change the color of the polyline by selecting the Polyline Annotation layer.
- Change the coordinate system of the map. Items drawn are reprojected.
- Press the Save button. The Map is saved in a temporary file.
- Reload the map using the Load button.
How to Run the Sample as an Application
This sample can
be run as an application.
The installation directory contains
an executable JAR file,
drawon.jar,
that allows you to execute the sample with a double click from a
file browser. Note that if you are using Internet Explorer, you can
open the installation directory
and execute the JAR file from the browser. This
technique may not work in other Web browsers.
Alternatively, you
can run the sample application from the command line.
First check that the Ant utility is properly configured. If not, see the
instructions on how to configure Ant for Perforce JViews.
Then, go to the installation directory
of the sample and type:
ant run
Topics Covered
- JViews Maps API.
- Adding graphic objects to a map.
Detailed Description
This sample shows how to place graphic objects on a map. The demonstration can place polylines, polygons and point on top of the map of the world. Each kind of object placed on the map can be customized by changing the style of the corresponding layer. Each kind of object have a label and a description property, the label being shown as part of the labeling process and the description being show as a tooltip. Graphic objects are stored in a IlvGraphicLayerDataSource that handles reprojection and persistence of the objects.
Installation Directory
The Drawing on Top of a Map sample is installed here.