ISO

ISO

ISO surface plots draws surfaces at constant values, with lighting added.

In 3D elements, as shown here, the contours will show surfaces of constant value through the body of the solid mass.

In 2D elements the effect is the same as a Line Contour plot, drawing lines of constant value.

Note that ISO plots of large solid meshes can be many times slower than, for example, SI plots of the outer surface. This is due to the "cube /square" law: an ISO plot has to consider all elements inside the mesh, whereas an SI plot need only consider external elements.

Note also that ISO plots are not supported for solid elements with multiple integration point results in high resolution and all integration points. If high resolution is selected for such elements the integration point will be automatically changed to average at centre.