Hi all,
Patric,
Here is a code snippet to get mass properties in the selected coordinate system
(writing from memory, don't have a user guide near by, check spelling,error checks are ommitted)
ProSelect( "csys",1, NULL,NULL,NULL,NULL, &p_sel,&n_sel);
ProSelectionModelitemGet( p_sel[0], &csys_gi);
ProSelectionAsmcomppathGet( p_sel[0], &cpath_csys);
ProGeomitemGeomitemdataGet( &csys_gi,&p_gd);
//gettransformation matrix from the coordinate system to thecsys owner model
ProMatrixInit( p_gd->p_csys_data->x_v, p_gd->p_csys_data->y_v, p_gd->p_csys_data->z_v, p_gd->p_csys_data->origin, from_csys_trf);
//invert matrix to get transformation from global to local
UserMatrixInvert( from_csys_trf, to_csys_trf);
//get transfromation from the assembly to the owner of the csys, or init identity matrix if csys belongs to assembly
ProAsmcomppathTrfGet( &cpath_csys, PRO_B_FALSE, asm2csysowner_trf);
//multiply matrix to get combined transformation from assembly global frame to the selected csys
UserMatrixMultiply( result_trf, to_csys_trf, asm2csysowner_trf); //check an order of arguments...
//select part andget transfromation matrix from part to assembly frame
ProSelect( "part",1, NULL,NULL,NULL,NULL, &p_sel,&n_sel);
ProSelectionAsmcomppathGet( p_sel{0], &cpath);
ProAsmcomppathTrfGet( &cpath, PRO_B_TRUE, part2asm_trf);
ProAsmcomppathMdlGet( &cpath, &part);
//multiply combined matrix with part matrix to get a final transformation
UserMatrixMultiply( final_trf, result_trf, part2asm_trf);
//get mass properties
ProSolidMassPropertyGet( part, NULL, &prop);
//use ProPointTrfEval to transfer point properties and ProVectorTrfEval for vector entities
//center of gravity:
ProPointTrfEval( prop->center_of_gravity, final_trf, cntr_grav);
and so on...
HIH.
Feliks.
