News

Pathfinder Profile Switching Examples

December 3, 2019
Profile switching has been added to Pathfinder 2019.3. The original request came from a user who wanted to simulate a situation where some building occupants were emergency responders. In an emergency, these occupants would go to a room, change clothes, and then change behavior when they left the room. Pathfinder 2019.3 supports this scenario. This video ... Read More...

Change Profile Dynamically with New Behavior Step

November 19, 2019
Coming soon in Pathfinder 2019.3 we will see a new Behavior step that allows occupants to dynamically change their Profile. A similar feature was added previously where occupants could change their behavior. The profile contains the occupant’s characteristics such as speed, door choice, and various settings related to interacting with other occupants in the model.  You ... Read More...

Update of NFPA 502 Critical Velocity Calculator for 2020

October 31, 2019
The NFPA 502 Standard for Road Tunnels, Bridges, and Other Limited Access Highways has been updated for 2020 and includes a new Annex D Critical Velocity Calculation. We have updated the Tunnel Critical Velocity Calculator that can be downloaded to make this calculation. A comparison of the 2020 calculation with the 2017 version is shown below ... Read More...

Save Settings for Results Visualizations

October 30, 2019
With the most recent release of PyroSim and Pathfinder, the Results tool has a new ability to save the settings and state of the Results Viewer, this newly saved data is known as a Results 'Visualization'. A 'Visualization' is a collection of settings that define which Pathfinder and FDS results are to be loaded and how those results are to be displayed. It also contains information entered by the user, such as views, tours, colorbar settings, time settings, annotations, object visibility, etc. Read More...

PyroSim Geometry from SketchUp

October 9, 2019
Two methods to build a 3D curved ramp model in SketchUp, and then export the geometry for use in PyroSim. Read More...

Pathfinder 2019.2.1002

October 2, 2019
This release adds visual and usability improvements, bug fixes, and a system to save and restore results settings.  Read More...

PyroSim 2019.2.1002

October 2, 2019
This release adds custom keyboard shortcuts, visual and usability improvements, bug fixes, and a system to save and restore results settings.  Read More...

PyroSim Keyboard Shortcuts

September 30, 2019
A long-awaited feature has finally arrived, you can now assign Keyboard Shortcuts to various actions in PyroSim. Read More...

Reduce Occupant Diameter to Navigate Narrow Geometry

August 19, 2019
The new "Minimum Diameter" setting for movement through narrow geometry (optional), specifies a diameter to which the occupants can squeeze their bodies to pass through a narrow area, such as narrow doors or corridors. Read More...

Data Visualization through Occupant Colors in Pathfinder 2019.1

June 13, 2019
Pathfinder 2019.1 introduces an additional way to visualize evacuation results through the color of occupants in the model. Occupants can be assigned a dynamic color value based on criteria such as behavior, profile, speed, and more. The video below illustrates many of these options within a single model. Read More...