Node selection within the scene can be very important in guiding the user. Use the select instruction type to guide the user to select a specific node in the Scene (WIP) pane. The query for the instruction can be a reference to the name of a node, or a reference to the order of creation.
Click the name of the example below to save it as a file.
var oLessonMgr = MainWindow.getInteractiveLessonMgr(); oLessonMgr.begin([ { "select": "Genesis", "info": "You need to select something in the scene named Genesis" } ]);
When using a named reference to a node, the query allows the use of a dot operator to indicate a node child.
Click the name of the example below to save it as a file.
var oLessonMgr = MainWindow.getInteractiveLessonMgr(); oLessonMgr.begin([ { "select": "Genesis.rHand", "info": "Select Genesis' Right Hand" } ]);
Sometimes you need to select the last node created, or a node created a number of steps in the creation sequence prior. The select instruction supports a node back notation. The element in the query can be one of “node”, “figure”, “light”, or “camera”. The position is a number that represents a count of elements to go, in the reverse direction. The query “figure@0” would target the most recent figure created in the scene.
Here is a full example:
Click the name of the example below to save it as a file.
var oLessonMgr = MainWindow.getInteractiveLessonMgr(); oLessonMgr.begin([ { "action": "DzNewAction", "info": "Start with a new scene." }, { "action": "DzPrimitiveAction", "result": "node", "info": "Please create a sphere." }, { "action": "DzPrimitiveAction", "result": "node", "info": "Please create a cube." }, { "select": "node@0", "info": "Select the last node you created (the most recent one).", }, { "select": "node@1", "info": "Select the first thing you created (the 2nd most recent one).", } ]);