From: <WH<arms@bf...>  20040805 12:22:25

hi, i have still problems with these grid data stuff. perhaps i am on the wrong way ? here is a shortcut of my problem: /* count 2Dpoints with value Z */ count=20; for(i=0;i<count;i++) { pnt[i].x= (PLFLT) (rand()%100); /* 0...99 */ pnt[i].y= (PLFLT) (rand()%100); /* 0...99 */ pnt[i].z= (PLFLT) (rand()& 1); /* 0,1 */ } my impression was that plgriddata() das the magic to move [x,y,z] > z[a][b] /* org line from my trial X,Y,Z is the array with the original data dY,dX,dZ is the (display)data */ plgriddata(X,Y,Z,count,dX,count,dY,count,dZ,alg,GRID_CSA); I exspected now a mesh (or something like that) with: plot3d(dX,dY,dZ,count,count,DRAW_LINEXY,0); I did saome other experiments but obviously i got something seriously wrong :( regards, walter 