How Do I transform 2d coordinates of the mouse into 3d?
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You have to use the Isolatic Mouse cross pollenation subfrequency. leppie::AllocCPArticle("Zee blog");
Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.leppie wrote: Isolatic Mouse cross pollenation subfrequency Yes, but don't forget to cross-connect it to the third phase inducer plasma manifold. Otherwise the calibration of the dilithium crystal harmonisation routine will be ineffective and cause a phase variance feedback loop that will cause the automatic ejection of the mouse core. --Colin Mackay--
"In the confrontation between the stream and the rock, the stream always wins - not through strength but perseverance." (H. Jackson Brown) Enumerators in .NET: See how to customise foreach loops with C#
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leppie wrote: Isolatic Mouse cross pollenation subfrequency Yes, but don't forget to cross-connect it to the third phase inducer plasma manifold. Otherwise the calibration of the dilithium crystal harmonisation routine will be ineffective and cause a phase variance feedback loop that will cause the automatic ejection of the mouse core. --Colin Mackay--
"In the confrontation between the stream and the rock, the stream always wins - not through strength but perseverance." (H. Jackson Brown) Enumerators in .NET: See how to customise foreach loops with C#
Don't forget to engage the subatomic 3D hypogenerative mesh analyzer, otherwise all multi-axis cross pararllel calculations will be off by at least +/- 3 subneural nanometers. - Nick Parker
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Don't forget to engage the subatomic 3D hypogenerative mesh analyzer, otherwise all multi-axis cross pararllel calculations will be off by at least +/- 3 subneural nanometers. - Nick Parker
My BlogNick Parker wrote: ...will be off by at least +/- 3 subneural nanometers. True, but at that error variance it is also possible to activate the heisenberg compensator in order to mitigate any misalignment of the multi-axis cross parallel interconnectors. Thus allowing a steady stream of negatively charged subatomic particles to pass freely through the integral data coupling array. ... You know, I think we've all been watching too much Science Fiction. --Colin Mackay--
"In the confrontation between the stream and the rock, the stream always wins - not through strength but perseverance." (H. Jackson Brown) Enumerators in .NET: See how to customise foreach loops with C#
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Nick Parker wrote: ...will be off by at least +/- 3 subneural nanometers. True, but at that error variance it is also possible to activate the heisenberg compensator in order to mitigate any misalignment of the multi-axis cross parallel interconnectors. Thus allowing a steady stream of negatively charged subatomic particles to pass freely through the integral data coupling array. ... You know, I think we've all been watching too much Science Fiction. --Colin Mackay--
"In the confrontation between the stream and the rock, the stream always wins - not through strength but perseverance." (H. Jackson Brown) Enumerators in .NET: See how to customise foreach loops with C#
Colin Angus Mackay wrote: Thus allowing a steady stream of negatively charged subatomic particles to pass freely through the integral data coupling array. Too true, but remember that by taking the integral of the guid generating function we can discern the total surface area of the applications UI in pixels. :) Colin Angus Mackay wrote: You know, I think we've all been watching too much Science Fiction. Says who?? :omg: - Nick Parker
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I'm uncertain whether this thread is supposed to be taken seriously or not (judging by other responses), but I have converted mouse coordinate X,Y into a ray from Point1(X,Y,Z) to Point2(X,Y,Z) in OpenGL. If that's any good to you, reply to me and I'll post the code. Regards Brewman
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I'm uncertain whether this thread is supposed to be taken seriously or not (judging by other responses), but I have converted mouse coordinate X,Y into a ray from Point1(X,Y,Z) to Point2(X,Y,Z) in OpenGL. If that's any good to you, reply to me and I'll post the code. Regards Brewman
It is a serious thread. Some of us were just having some fun. :-D --Colin Mackay--
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You should post your reply to me through the forum and not directly in my email. You might receive a broader response. START EMAILED REPLY ---- hi i am in virtual 3D room and i want to choose something from the wall END EMAILED REPLY ---- --Colin Mackay--
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You should post your reply to me through the forum and not directly in my email. You might receive a broader response. START EMAILED REPLY ---- hi i am in virtual 3D room and i want to choose something from the wall END EMAILED REPLY ---- --Colin Mackay--
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This code is for CsGL, a C# wrapper for OpenGL, but I'm sure that the concept applies to other graphical 3D stuff. In a 2D representation of a 3D scene (i.e. most pictures, TV, cinema, etc), a point on the 2D surface represents a line in 3D space. In openGL, this 3D space is bounded by clipping planes. The following code takes the mouse's X-Y coordinates and calculates a line (or ray) that passes through those clipping planes. Note that the OpenGL mouse Y coordinate is 'inverted' to Windows mouse Y Coordinate. Note that the following code won't quite work 'out of the box' (I've removed some stuff to condense things), but you should be able to construct working code with little effort. - You need the ModelView, ModelPort & Projection state, saved like the following code: public class OGLMatrixState { public void Save() { GL.glGetDoublev(GL.GL_PROJECTION_MATRIX, savedProjectionMatrix); GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, savedModelviewMatrix); GL.glGetIntegerv(GL.GL_VIEWPORT, savedViewportArray); } private double[] savedProjectionMatrix = new double[16]; private double[] savedModelviewMatrix = new double[16]; private int[] savedViewportArray = new int[4]; } - You need the built-in conversion routines that OpenGL provides: public static SEG.Line ViewXYToRay(double vX, double mouseY, OGLMatrixState matrixState) { double vY = matrixState.Viewport[3] - mouseY; double pX,pY,pZ; SEG.Point nearPt = new SEG.Point(); SEG.Point farPt = new SEG.Point(); GL.gluUnProject(vX, vY, 0.0, matrixState.Modelview, matrixState.Projection, matrixState.Viewport, out pX, out pY, out pZ); nearPt.X = pX; nearPt.Y = pY; nearPt.Z = pZ; GL.gluUnProject(vX, vY, 1.0, matrixState.Modelview, matrixState.Projection, matrixState.Viewport, out pX, out pY, out pZ); farPt.X = pX; farPt.Y = pY; farPt.Z = pZ; SEG.Line rayFromNearToFar = new SEG.Line(nearPt, farPt); return rayFromNearToFar; } Hope this helps Regards Brewman