1.7.4. Postprocess data tree
The CompassFEM Postprocess provides four panels on the right of th GUI. They allow to perform animations, change mesh display properties as colour or transparency, select results and how to show them, and preferences. These panels can be shown, hidden or minimized using the buttons highlighted in the following image.
1.7.4.1. Animations control
It is possible to animate dynamic simulations and static analysis if meshes have been deformed using a vector result. If a dynamic analysis is loaded a combo box allows to select a step of the selected result.
The Animation panel provides controls similar to a video player. Moreover, it is possible to save the animation in a video file using Save animation.
The procedure recommended to export to standard video format is explained below:
Define properties as name, type, delay, etc… Save redraws must be set.
- Click button to start to save the animation.
- Click button to start animation.
- Click button to finish and close animation file.
The following explains how to make an animation of a static simulation.
1. Use Deformed preferences to select a vector result to deform meshes. Configure other deformed parameters if it is necessary, and activate Draw in the Deformed preferences.
When the red slide bar of the Animation panel is clicked, then a dialog win is opened to define interpolated steps.
Now, interpolated steps have been created and it is possible to animate simulation as a dynamic analysis.
1.7.4.2. Meshes selector
This panel shows all meshes contained in the model and allows to manage their visualization.
The available display properties are as follows:
On/Off: mesh visualization.
Display style: Change the visualization style between the following options available:
Render
Render with border
Render and mesh
Mesh
Borders
Line style: it is possible to draw shells and beams with real section.
Transparent: manage the mesh surface transparency.
Boundary conditions: it draws the selected mesh as boundary conditions. For example, in the next figure, Fixed constraints Auto1 mesh is drawn as Boundary conditions.
1.7.4.3. Results selector
From this window it is possible to draw all calculated results using different type of visualizations (Vectors or Contour Fill).
In the case of Vectors, then once a result is chosen, the program will display its nodal vectors.
Contour Fill allows the visualization of colored zones, in which a variable or a component changes between two predefined values.
It is possible to fix maximum and minimum limits for the color scale, which can also be calculated automatically for the active meshes or for all the meshes. The following figure shows controls to define limits for the color scale and the contextual menu that allows to recalculate the limits.
1.7.4.4. Preferences selector
Several configuration options can be managed from this window, in both basic or advanced usage:
Basic: for common operations like view deformation, draw labels, etc.
Advanced: displays preference options that are not modified very often.
Advanced preferences
Advanced preferences
Notice that the advanced preferences can only be shown when All preferences is set.
1.7.4.4.1. Labels
If Draw labels is activated, labels are drawn on the model depending on the context and the value of the preferences. If a result is selected, then the labels show the result value to the node. If Position is All, there are a label for each node, but if Position is Maxima then only where the result is the maximum.
If no result is selected, then the labels show the number of node. In this case, there are labels for each node although Position is Maximum.
1.7.4.4.2. Contour fill
Preferences for Contour fill allows to configure the Legend for Contour fill results.
1.7.4.4.3. Vectors & Local axes
This preferences allows to configure Vector and Local axes results. It is possible to modify the size factor, the position in all nodes or only some of them (Automatic), the arrow style (Line or Cylinder) and if size is fixed or variable.
1.7.4.4.4. Deformed
Meshes can be deformed according to a vector result and a factor. When doing this, all results are drawn on the deformed meshes.
Draw: if it is activated, the deformed configuration is drawn.
Adimensional factor: if it is activated, then the deformed configuration size is not real and the optimum visualization is used.
Factor: factor which multiplies the deformed configuration. If factor = 1 and adimensional factor option is not checked, the visualization is real.
Draw original: it allows to draw the original configuration (without any deformation) and to choose the visualization style (render, render with border, render and mesh, mesh or borders).
Result: a vector result must be chosen. This result is used to show the deformed configuration. Please see Animation control to know how to animate the deformed configuration.
1.7.4.4.5. Aristes
When drawing mesh aristes, consider similar meshes as a group or draw every mesh individually.
1.7.4.4.6. Cuts
Cut preferences are explained below:
Auto extend cuts: when creating a cut over one surface, the cut line extends as much as possible. If cut plane is created using menu option, the cut line is extended regardless of this preference. However, if cut plane is create using the contextual menu, then the cut line is extended depending on this preference.
Cuts on boundaries: if selected, the cuts on volumes will be lines on the boundary of the volume.
Auto transparent: when a cut over a surface or volume is created, then the new mesh is set automatically to transparent.
Cut type: this option defines the way that a plane cuts the set of active meshes:
Connected elements: only are considered the element under the cursor and elements connected to it, without crossing aristes.
Mesh: only are considered the elements that belongs to the mesh under the cursor.
All: the created plane cuts all active meshes.
Please, see Create cut plane to know more information about cut plane creation.
1.7.4.4.7. Detailed information
These are the preferences options in this category:
Dynamic box: draw a dynamic box in screen with information about the element under the cursor.
Information box: write mor details like gauss point data in the point information boxes.
Draw frames information: draw graphics performance information in the screen.
1.7.4.4.8. Animations
These are the preferences about animations:
Minimum real time increment: minimum realtime increment in milliseconds between two animation.
Constant increment: if set, increment in time step values for the animations is used as a constant.
Please, see Animations control to know how to perform animations.
1.7.4.4.9. Flow patterns
These are the preferences that can be configured for flow patterns:
Fluid velocity: this is the most important preference related to flow patterns. It makes possible to choose a fluid velocity result necessary for creating flow patterns. Postprocess tries to find it, but if it is not possible, then user will have to do it. If there is not any fluid velocity result chosen, flow patterns will not be able to be created.
Fluid density: it makes possible to choose a fluid density result. If there is not any fluid density result chosen, a fix density value must be defined in the particle tracking window.
Resolution: It is the number of points to be drawn for all flow patterns. Between each pair of points, a straight line will be drawn. Therefore the higher resolution, the smother will be flow patterns. When it is changed, all flow patterns will be recalculated and redrawn using the new value.
1.7.4.4.10. Solid elements
Draw tetrahedra and hexahedra with reduced size, in order to separate them from neighbours. If Scale factor is less than one, then the elements are reduced.
1.7.4.4.11. Memory
If Use OpenGL display is not activated, then drawing will be slower but program will need less memory.
1.7.4.4.12. Geometry
Transparency style can be blend or stipple and it is possible to hide meshes without results.
1.7.4.4.13. Export
These are the preferences for export meshes and results:
Only meshes On: if it is activated, only meshes set ON will be exported.
VTK file format: it is possible to export meshes and results to VTK in ascii, binary, appended.
Please, see Export menu option.