Line-of-sight integration: A powerful tool for visualization of three-dimensional scalar fields

I. L"O"IOOUCTION Tbr numerical modeUina as wdI as the experimental monitoring of compae. pflysical sySIeml in many eases produce as a f1!SU1t the di5c-rete values of a thrtt..wmensional scalar tidd 't(;t, y. :). fot itlSW\Ce acknsity. a lempentu~ or a probability distribution in space. wbich has to be adeQuately visuaJited in ord~r to allow a pfl)-slcal interpretation. The tnditional methods of praelltina lurh results a~ lines of constant values in dihrn orttqonaJ cuttina pb.n~ whi c-h can additionally be colour-codtd or three-dimensional plou of the COITtSpondil\j contour surfaces. The method which is praented here can convey a aenuine impression of the three-dimensional struC1U~ or a scatar field and Km1S to be widely ap-