Bean,
Sorry, but I'm not a human debugger.
It returns false because you are not hitting anything. It is up to you
to analyze the parameters passed to the intersector. Usually one would
use window coordinates from a pick event however.
You are not giving enough information here.
Cheers
Hi Sebastian,
I use the way about your method, but I get zero point.
I may use wrong. Here is the code:
const float x = v1.x();
const float y = v1.y();
const float look_offSet = 10.0f;
osg::ref_ptr polyIt = new
Hi Sebastian,
I use the way about your method, but I get zero point.
I may use wrong. Here is the code:
const float x = v1.x();
const float y = v1.y();
const float look_offSet = 10.0f;
osg::ref_ptr polyIt = new
If your terrain surface uses a GLSL fragment shader, you could add a 2D
point in polygon test on the x/y coordinate and add or blend a highlighting
color to the generated fragment when it passes the PIP test. It might get
kind of slow when your enclosing polygons has a lot of vertices.
For a
Hello Bean?
You can use the polytop intersector to get all primitives inside and
draw them with an polygon offset applied on top of the original geometry.
Cheers
Sebastian
primitive problem
Hi,
thanks for all your replies;
use overlaynode,but the projected texture is not right,
any ideas?thanks!!
attached :
yellow lines-profile of geometry
Code:
geometry-addPrimitiveSet(new
osg::DrawArrays(osg::PrimitiveSet::POLYGON,0,v-size())) ;
geode-addChild(geometry);
Pan Li wrote:
I want to draw a curved surface dynamic, like the function Mesure area in
skyline.
now i have the profile line of the curved surface,but just lines,not a
polygon or a surface.
Well, the example you showed is using texturing. I suspect if that's the
effect you
want, you'll
Hi Jason,
Last time I checked (half a year ago), osggis did no create a curved
polygon when creating a filled polygon for e.g. Russia. Since no
sampling points are created inside the polygon the tessellated triangles
goes straight from one edge to the other thought the ground.
It would be
No - osggis does not drape polygon geometries.
Glenn Waldron : Pelican Mapping : http://pelicanmapping.com :
+1.703.652.4791
On Wed, Aug 5, 2009 at 5:45 AM, John Vidar Larring larr...@weatherone.tvwrote:
Hi Jason,
Last time I checked (half a year ago), osggis did no create a curved
polygon
Hi Lipan,
You could look into using projected textures with the osgSim::OverlayNode or
if you are rendering vector data such as that from an ESRI shapefile I'd
recommend looking at osggis at http://www.osggis.org.
Jason
On Mon, Aug 3, 2009 at 7:15 AM, Pan Li osg...@163.com wrote:
Hi,
1、how
Thanks for your reply!
I want to draw a curved surface dynamic, like the function Mesure area in
skyline.
now i have the profile line of the curved surface,but just lines,not a polygon
or a surface.
my issue is:
how to display the profile line to be a enclosed area, not lines.
use
11 matches
Mail list logo