CRIMSON

Bug fixes and improvements
Expiry date updated

Bug fixes and improvements
Expiry date updated

Bug fixes, including manual contour imports being handled incorrectly
Expiry date updated

Expiry date updated

Removed the MeshSim mesh generator. Meshing is now provided by the open-source product, TetGen
Please contact us if you require CRIMSON with the MeshSim mesh generator
CRIMSON Flowsolver and CRIMSON GUI now come as two independent installers. You may use one without the other if you wish.
Users working with saved mitk scenes which were created in an older version of CRIMSON may need to re-mesh their models in the latest release.
Enhanced PC-MRI functionality to support multiple scanner vendors, and additional options for accessing PC-MRI data stored in different planes - see here for the new documentation
Fixed a bug with the Netlist "Remove" button, which could cause CRIMSON to crash
CRIMSON GUI expiry increased to 365 days

IMPORTANT: This is the final release containing Simmetrix's MeshSim for mesh generation. Future releases will contain TetGen for mesh generation. Alternatively, if you wish to continue using the MeshSim, you will need to purchase a CRIMSON Pro license
Updated license validity
Bug fixes

Updated license validity

Updated license validity

Enhanced flowsolver now uses MPI version 3, improving performance
Fixed the /dev/shm warning that was being printed at the start of simulations
MPI layout improved so that it can accurately report the causes of failures in the console
Fixed the "transport endpoint is not connected" simulation bug that required disabling of network adaptors
Numerous other bug fixes and improvements

Extended validity of the trial version
Re-enabled choice of colour for various objects in the data manager

Faster start-up of the application
Extended flowsolver license period
Fixed "vtk bad allocation" crashes
Additional minor bug fixes

Bug fix for workflows involving .stl discrete models

Renewed MeshSim license
Minor bug fixes

New PC-MRI module for processing patient specific velocity profiles from PC-MRI images. This enables users to impose the true aortic inflow profiles on their models.
Please cite our upcoming article if you use this tool: Optimal B-spline Mapping of Flow Imaging Data for Imposing Patient-specific Velocity Profiles in Computational Hemodynamics, A. Gomez et al. IEEE TBME.
Integration with MITK 2016.11 and updates to ITK, VTK and some other external libraries.

Updated the license expiry date for the CRIMSON flowsolver

Updated the license expiry date for the CRIMSON flowsolver
Minor flowsolver library updates

Supports loading discrete solid models (.stl file format) for your vessel geometry. The subsequent workflow is then identical to that for analytical solid models built inside CRIMSON (meshing, re-meshing, solver setup)
GUI integration of the CRIMSON incompressible Navier-Stokes flowsolver for running small simulations on the local machine

Internal license update for mesh generation

VMTK scripting in Python is now available in the CRIMSON Python Console. A brief introduction is provided below.
Getting Started with Centerline calculation in CRIMSON using VMTK Python scripts
1. Start by importing a .vtk file representing a vessel surface object into CRIMSON.
2. Open the CRIMSON Python Console. Drag and drop the vessel surface object (1. in the image below) from the Data Manager window into Python Console Variable Stack (2. in the image below) in order to make the object accessible through Python interpreter.
3. Type the following code into the Python Console (line-by line followed by enter) or in the Python Text Editor (and press run):
```
													import vmtk
													from vmtk import vmtkscripts
													test=vmtkscripts.vmtkCenterlines()
													test.Surface=wall_Right_Renal
													test.AppendEndPoints=1
													test.Execute()
													result=test.Centerlines
												
```
Note that wall_Right_Renal is the name of the vessel object which was imported from a .vtk file. Adjust it to match the name of the object for your specific case!

The code will make an additional window pop-up, which is used for VMTK interaction. The window will prompt the user to select 2 seed points on the rendered vessel object. Proceed as instructed by the window in order to place the seed points.

The calculated centerlines are stored in the Python Console Variable Stack as a variable named result. In order to move the variable into the main CRIMSON Data Manager simply double click on result (marked in the image below). The centerlines will be automatically rendered in the CRIMSON rendering windows.

Upgraded to new version of MITK (2016.03) - now with integrated VMTK
Fixed a file extension bug which caused saved netlist files to have the extension ".xml)" rather than ".xml".

Added the ability to select faces from list and not just by clicking in 3D window (see image below)
The deformable wall material is treated differently for flow/wall faces for which no material is set

Flow faces: no material is set
Wall faces: isotropic material with values from the Deformable Wall Boundary Condition is set

Multiple meshes are allowed per model

Make sure to remove meshes you don't use - they use up a lot of memory!

Adapted meshes are now placed under the original model

Multiple bug fixes for Linux version
Added anisotropic deformable wall material

Bug fixes

Added Netlist boundary condition and circuit editor
Added the meshing option allowing to propagate mesh size from surface into the volume
Added missing tooltips in the interface
Added automatic detection of planar faces for imported solid models (e.g. planar BSpline surfaces are treated as planes)
Bug fixes

Renamed "Solver Setup" to "Solver Parameters". This requires upgrading the scene (see below) or re-creating the solver setup node
Materials fixed
Small bug fixes

Upgrage instructions

Open python console
Switch to text editor tab
Paste the following code there

										import upgradeScene2
										upgradeScene2.upgradeScenes2()

Run it and select the file(s) to upgrade.

Critical bug fixes

Added support for solution visualization
Save/load transfer functions for material/solution visualization

Fixed a problem in Python modules
Improved mesh adaptation

Added possibility to define and visualize materials
Isotropic deformable wall material for CRIMSON Solver
Improved clean Autodetect for scenes with custom boolean operations

New license keys for the meshing library integrated
Several small bugs fixed
Seam edge rotation supported for lofting operations

Added deformable wall boundary condition
Mesh nodes at the edges between flow faces and wall faces are always classified as belonging to the wall
Fixed the libpng warning that was cluttering the console window
A message box is now shown if an error occurred during writing solver setup
Several crashes fixed
Added a CRIMSON python module template to enable easier creation of complete custom solver setup modules (see Getting started page of the documentation)
Updated and extended documentation

Python-based solver setup routines (see below for details)
Migrated to MITK 2015.05.02
Multiple bug fixes

The solver setup is now done using the python scripts to allow extensions to be built by the users without need for recompiling CRIMSON itself. The scene format was changed to adopt these modifications and therefore, the old scenes need to be upgraded to be loaded in the new version.

Open python console
Switch to text editor tab
Paste the following code there

											import upgradeScene
											upgradeScene.upgradeScenes()

Run it and select the file(s) to upgrade.

Upgrading may take some time especially for large scenes. However, this only needs to be done once per scene and it will produce the "filename_new.mitk", which you can then load. The scene size will also increase, but you can fix this by loading the scene and save it to a different file using "Save as...". All the contents of the scene will be preserved, except for the adaptation parameters.

The overall solver setup workflow has also changed.

c:\Program Files\CRIMSON 2015.12.01\bin\Python\lib\site-packages\All things related to solution setup are grouped under solver type node (for now we just have CRIMSON Solver)
For a new scene, setup starts with creating such a node with a button. For upgraded scenes it will be created automatically
Multiple boundary condition sets can be used by a single study and BC sets can be shared between studies - you should choose which ones you want in a list (3). Again, for upgraded scenes this will be done automatically
Solution files are loaded using button (4), and they will be shown in the hierarchy under the solution node (5)
When adapting, you should choose the error indicator for the adaptation in the combo box

The documentation for the Python interface can be found here. The Python code for CRIMSON Solver is located in "CRIMSON install dir"\bin\Python\lib\site-packages (similar location for Linux). If you want to add your own complete solver setup package, add the directory containing that package in Window -> Preferences -> Python solver setup.

Critical bug fix of generating incorrect bct files

New MeshSim version - fixes the problems with loading files with adapted meshes
Bug fixes

Critical bug fix for scene saving/loading

Migrated to MITK 2015.05
Reslice window can now be seen in other 2D windows as a line
Numerous bugs fixed

Added support for custom boolean operations
Implemented additional checks upon import of solids from STEP and IGES

Added a check box to enable/disable parallel blending
Tolerance for fitting curves to contours during lofting is now relative
Upon import of vessels, contours are converted to circles/ellipses if possible
Intersection detection is now faster

Changed to OpenCASCADE 6.9.0 - all vessel fuse is done in one operation leading to faster blending of complex models
Missing discretization parameters added to the

Async operations report the time it took to perform the operation into log
Added mesh exploration view
The polyline passed as the vessel path to the "Import vessels" action is now fitted with a spline to allow better interaction

Presolver support for FSI commands
Fixed long names causing trouble on save
Fixed surfaces not visible in 2D windows for multi-phase data

Export/import vessel paths with contours for matlab data exchange. Access this functionality through context menu of the vessel tree in data manager.
Added workflow toolbar

Added reparenting action for vessel trees and vessel paths. Note that the derived data such as lofts, blends and meshes will not be preserved, but can be restored by re-lofting/blending/meshing.
Fixed surface-only meshes not displayed
Output information on which contours/vertices failed during blend
Fixed name not changing in fillet size tables
Added log message on async operation fail
Style-sheet polishing

Added mesh adaptation view
Added the notion of solver study which contains the solver setup, boundary condition set and mesh used to output solver setup
Added output of ybar and wall shear stress to CRIMSON solver setup
Better order of variables in solver.inp (not alphabetical)
Show/hide contours context menu items added.
Mesh information context menu item added
Error message is always shown if the async task has failed
Error message for blending shows the contours/vertices where the error occurred if possible.
The new lofts/blends now inherit the properties of the ones being replaced - such as name, color and opacity

Fixed control points placed on top of each other for polygons
Fixed empty circles being created on a single click without drag
Fixed problems for imported models failing to mesh after save/load project.

Corrected the units for RCR parameters

Added shortcuts for lofting (Alt-L) and loft preview (Alt-P)

Meshing view always shows all faces, but a new column is added that shows whether local parameters are modified for this face.

Fillet for "use inflow/outflow" as wall moved to the blending stage (reloft needed)
New meshsim keys
Views no longer retain vessel (or other type) node when none is selected - e.g. when no path is selected
Added the current project notion ("Open" action split to "Open project" and "Import", "Save project" saves to current project incrementally, added "Save As", "Save" action renamed to "Export")
Added list of recent projects

Changed tolerances to allow simpler swept vessels
Added functionality for setting minimum size due to curvature refinement
Fixed step solid model output

Fixed crash on closing meshing/solversetup view
Fixed performance and memory issues for segmented contours.

Fixed meshing problems for imported solids
Sewing for IGES removed
Allow importing/exporting STEP
Changed layout of contour modeling view to incorporate show/hide loft preview and warning label about error during preview

Added mesh information

Added new lofting algorithm (sweep)
Live preview for lofting
Allow meshing and setting up BC's for standalone (imported) model
Solid model and vessel path set the bounding box correctly

Fixed incorrect normal detection for CRIMSON Solver setup
Removed timeout for waiting for presolver to complete
Latest presolver version included into distribution

RCR's allowed on both inflows and outflows
Multiple instances of CRIMSON are allowed
Path editing performance improved

Fixed crash after unsuccessful meshing
Fixed render window menu not being shown after changing render window layout

First release based on MITK 2014.10, Qt5 and OpenCASCADE 6.8.0.

CRIMSON binary installers are provided free of charge.

CRIMSON Versions:

Source Code:

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