Look around tool in ruby?

[Pixero]

How does the look around tool work in ruby?

The rotate view rotates around a target point
but the look around tool rotates around the position of the "camera".
How is that done in ruby?

[todd burch]

With Camera.direction and Camera.up.

Todd

[Pixero]

I tried that and also "camera.set eye, target, up" but can't get camera to rotate.
What's the right syntax? Is there a "camera.set eye, direction, up" ?

[todd burch]

I should have said "with camera.set by changing the direction and tilt", but I think you understood.

You say "why doesn't my code work, because I am doing that".

Now, I have to say, I need to see your code to tell you why your code does not work, intead of trying to guess what you are doing wrong. There are a couple ways to approach this. It's too brain-racking to try and guess.

Todd

[Pixero]

Here is some testcode I use.
I get: <ArgumentError: Eye, Target and Up are required> when using camera.set direction
I also tried with: direction.set!(@rx, @ry, @rz); but nothing...

# Testing code
# Name; 	jsCameraTool
# Author; 	Jan Sandstrom   www.pixero.com
# Description; 	Position and rotate the camera numericly.		


require 'sketchup.rb'

def jsCameraTool

model = Sketchup.active_model
view = model.active_view
camera = view.camera
eye = camera.eye
direction = camera.direction
target = camera.target
up = camera.up
length = camera.focal_length
fov = camera.fov

### Dialog		
	@px = eye.x 
	@py = eye.y 
	@pz = eye.z 
	@rx = direction.x 
	@ry = direction.y 
	@rz = direction.z 
	#@tx = target.x
	#@ty = target.y
	#@tz = target.z
		
	prompts = ["Position X", "Position Y", "Position Z", "Rotation X", "Rotation Y", "Rotation Z"]
	values = [@px, @py, @pz, @rx, @ry, @rz]
    	results = inputbox(prompts, values, "JS CameraTool")
   	px, py, pz, rx, ry, rz = results
    	@px, @py, @pz, @rx, @ry, @rz = px, py, pz, rx, ry, rz

	# New position
	camera.eye.x = @px;
	camera.eye.y = @py;
	camera.eye.z = @pz;

	camera.direction.x = @rx;
	camera.direction.y = @ry;
	camera.direction.z = @rz;
		
	#target.x = @tx;
	#target.y = @ty;
	#target.z = @tz;
		
	#up.set!(0.0, 0.0, 1.0);	
	#camera.set eye, target, up;
	
	camera.set direction;	
		

end # end of jsCameraTool

if( not file_loaded?("jsCameraTool.rb") )
    UI.menu("Plugins").add_item("JS CameraTool") { jsCameraTool }
end

[Jim]

camera.set takes 3 arguments: the eye (Point3d), the target (Point3d) and the up direction (Vector3d).

camera.set(eye, target, up)

[Pixero]

@unknownuser said:

camera.set takes 3 arguments: the eye (Point3d), the target (Point3d) and the up direction (Vector3d).
camera.set(eye, target, up)

Thats just it.
How do I set the camera.direction?

[Jim]

You need to use camera.set. The vector from the target to the eye is the direction.

m=Sketchup.active_model
view=m.active_view
camera=view.camera

v1 = (camera.target - camera.eye).normalize
v2 = camera.direction.normalize
p v1 == v2