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- Embossed Slice
Module: Embossed Slice ()
The Embossed Slice module offers another method for the visualization of scalar data fields defined on regular grids, such as stacks of tomographic images or simulation results. The data are visualized by extracting an x-y slice out of the volume or grid. This slice is represented as a surface with a depth visual effect. The data values can be mapped to colors or gray levels. This module requires a graphics board supporting multi-texturing and shaders. Notice that this module may not properly render semi-transparent parts with some transparency modes (sorted layers). In this case, you should set the transparency port to "binary", resulting in fully transparent or fully opaque rendering of slice parts. The DataWindow parameter of the input data can be used to control the colormap range or the depth effect range. About data window see spatial data commands and section "Data parameters" relating to parameters.
Note: The depth visual effect works only on one light, usually the headlight. To fine control this effect, it is suggested to switch off the headlight, add a directional (Menu View > Lights > Create light) and control the direction of the directional light with using the dragger (show dragger option of the created light).
Data [required]
The scalar field to be visualized, used for coloring. It is also used to control depth effect if no other input data U, V, W is connected. The module accepts scalar field based on a regular lattice with either uniform, rectilinear, or curvilinear coordinates, and containing either float, integer, or byte data. RGB and multi-channel fields are not supported.Projection [optional]
Connection to an optional projection module for spherical or cartographic projection.U [optional]
Optional data controlling depth visual effect. The data slice having the closest index to Slice Number port is considered mapped over the whole displayed slice for emboss effect, regardless of actual coordinates.V [optional]
Optional data controlling depth visual effect, combined with U. The depth effect is set according to sqrt(U*U+V*V). The data slice having the closest index to Slice Number port is considered mapped over the whole displayed slice for emboss effect, regardless of actual coordinates. Ignored if U is not connected.W [optional]
Optional data controlling depth visual effect, combined with U and V. The depth effect is set according to sqrt(U*U+V*V+W*W). The data slice having the closest index to Slice Number port is considered mapped over the whole displayed slice for emboss effect, regardless of actual coordinates. Ignored if U and V are not connected.Longitude [optional]
Optional float scalar field defining x coordinates (longitude) for the displayed surface. The connected field must match the dimensions (number of nodes or voxels in each direction) of the field connected to Data connection port. Ignored if Latitude is not connected.Latitude [optional]
Optional float scalar field defining y coordinates (latitude) for the displayed surface. The connected field must match the dimensions (number of nodes or voxels in each direction) of the field connected to Data connection port. Ignored if Longitude is not connected.Colormap [optional]
Optional colormap used to map scalar data to colors. See also Colormap.
Mapping type
For this module, only Colormap mode is avalaible.Colormap
Choose colormap if mapping type is set to Colormap.Depth
Factor controlling the visual depth effect.Slice number
This slider allows you to select different slices.Transparency
This radio box port determines the transparency of the slice. None means that the slices are fully opaque. Binary means that black parts are fully transparent while other parts are opaque. Alpha means that opacity is proportional to luminance. If a colormap is used for visualization, opacity values are taken from there.
