Overview
First Applet
First Application
First Graph
First Project
Models
Loader
Keyframe
Linear Alg
Torus Knot
Picking
Camera Events
Color Selector
Slider
Ruler
Vector Field
Polygon Sets
Scalar Field
ODE
Root Finder
Parm Curve
Parm Surface
L-System
Texture
Refinement
4D Transform
Size Vertex
Size Polygon
Size Edge
Mechanism for Picking Points on Polyhedral Surfaces
Demo applet for working with pick events on polyhedral surfaces. In this example, the pick events are used to generate a curve on a polyhedral surface. The vertices may be picked anywhere on the surface. The program automatically generates additional vertices when the curve between two pick points crosses a vertex.
Additionally, points may be picked outside the surface in the background of the viewer which leads to curve segments lying in the viewing plane centered at the origin. By rotating the camera, space curves may be generated independently of the currently displayed surface.
Keep pressing 'i' and pick or drag along surface to generate curve. Releasing 'i' switches back to default mode.
View source code:
PaPickEvent.java of applet,
PjPickEvent.java of project,
PjPickEvent_IP.java of project panel.