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User manipulation of geometric graphics

Rom
I need to create a utility that presents the user with a "canvas" and
allows them to add geometric shapes, including lines and circles.
These must be drag-able (that is, once they're on the canvas, they can
be moved), and I need to know the angles between the lines. There
will be as many as 300 shapes on the screen at once. The first API
that comes to mind is Java3D, but it might take too much time to
render this, expecially with hundreds of shapes on the screen. Java2D
might work, but I am not aware of any build-in object-awareness or
scene-graph capabilities.

What direction should I go in? Are there any APIs out there that are
recommended?
Jul 17 '05 #1
2 1684
Liz
do you really need 3D?
there are lots of examples of 2D on the web

"Rom" <ro**@aemf.org> wrote in message
news:74*************************@posting.google.co m...
I need to create a utility that presents the user with a "canvas" and
allows them to add geometric shapes, including lines and circles.
These must be drag-able (that is, once they're on the canvas, they can
be moved), and I need to know the angles between the lines. There
will be as many as 300 shapes on the screen at once. The first API
that comes to mind is Java3D, but it might take too much time to
render this, expecially with hundreds of shapes on the screen. Java2D
might work, but I am not aware of any build-in object-awareness or
scene-graph capabilities.

What direction should I go in? Are there any APIs out there that are
recommended?

Jul 17 '05 #2
Rom
Can you suggest any APIs?

"Liz" <Li*@nospam.com> wrote in message news:<A60fc.31432$xn4.74562@attbi_s51>...
do you really need 3D?
there are lots of examples of 2D on the web

"Rom" <ro**@aemf.org> wrote in message
news:74*************************@posting.google.co m...
I need to create a utility that presents the user with a "canvas" and
allows them to add geometric shapes, including lines and circles.
These must be drag-able (that is, once they're on the canvas, they can
be moved), and I need to know the angles between the lines. There
will be as many as 300 shapes on the screen at once. The first API
that comes to mind is Java3D, but it might take too much time to
render this, expecially with hundreds of shapes on the screen. Java2D
might work, but I am not aware of any build-in object-awareness or
scene-graph capabilities.

What direction should I go in? Are there any APIs out there that are
recommended?

Jul 17 '05 #3

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