How to get the modelview and projection matrix in Solidworks OpenGL context

Hi,

I am using VC++ to write ATL COM dll addin for Solidworks. I believe
that Solidworks is using OpenGL. I am trying to get the modelview and
projection matrix for a IModelView? Any thoughts on how to do that?

Thanks!

 

I am using VC++ to write ATL COM dll addin for Solidworks. I believe

Search the API help for transform (Help -> API Help)... According to
documentation, ModelView->get_Transform() returns the Model space --> View
space transform for a ModelView. . Transform matrices can be retrieved from
bodies, components, from sketch-to-model... At first glance it seems that
you cannot access the projection matrix via API, so I assume you have to
calculate it by yourself from viewpoint parameters.

-h-

 

Hi Heikki,

Thanks for the help. get_Transform actually gives the pixel positions
on the screen. I guess I can use Orientation3, Scale and Translation3
to assembly a modelview matrix. Projection matrix is from viewpoint
params, that's right, but how to get viewpoint parameters? We do not
know camera position or glOrtho parameters.

Thanks!