IGW Update History
3D Version Update History
IGW 4.7 released (7/18/2006):
2D Version Update History
IGW 3.5.8.2 released (7/12/2005):
* Bug fixed: Monte Carlo Simulation display bug fixed (sometimes saw "bad realization" because conductivity was displayed in double Log system. (5/30/2005)
* Bug fixed: Sometimes the Wells' were invisible or the name labels were gone. (5/30/2005)
* Bug fixed: IGW's "Attribute Input and Model Explorer" gave an error message when interface switched back and forth. (5/30/2005)
* Bug fixed: Some whiteout statements are disabled in a DLL which sometimes might give error message in case the user doesn't have the administrator privilege. (5/30/2005)
IGW 3.5.8.1 released (5/24/2005):
* Bug fixed: a discretization bug fixed, specifically for "Creating multiple models" feature. (5/12/2005)
* New feature: MT3D solver added for transport modeling. (3/27/2005)
* New feature: new matrix solvers added for transport modeling. (3/27/2005)
* New feature: turn on/off all wells feature added. (3/4/2005)
* New feature: Tecplot output format added for monitoring well. (3/4/2005)
* New feature: Tecplot output format added for cut line (profile line) feature. (3/4/2005)
* New feature: a new flag added to control how a plume in submodel interacts with parent model. (3/3/2005)
* Update: Variogram dll updated for minor bugs. (12/9/2004)
* Bug fixed: delete a polygon, all other polygon lose draw style and color settings. (11/9/2004)
* Bug fixed: synchronizing problem for Kriging's "Infer from Data" option. (11/9/2004)IGW 3.5.8 released (11/1/2004):
* Node edit was not working well sometimes. (10/26/2004)
* Boundary condition interpolation was not implemented correctly for submodel sometimes. (9/24/2004)
* Using the coordinates to create a polyline for releasing particles gives an error message sometimes. (6/2004)
* Keep asking if we want to continue the modeling if preset time reached in a set of submodels. (5/2004)
* Monitoring well pointed to the wrong source sometimes because the naming system malfunction. (4/26/2004)
* Transport computation was not synchronized with flow computation sometimes. (4/7/2004)
* Computation stopped if whole field turns dry. (3/23/2004)
* Scatterpoints discretization speed optimized. (3/11/2004)
* Bug in deleting polygon. (3/10/2004)
* Polyline cond bug. (2/27/2004)
* AMIE window resizable enabled. (2/17/2004)
* Crash when submodel window minimized. (2/17/2004)
* Coordinates keyboard input added for submodel. (2/12/2004)IGW 3.5.6 released (2/2/2004):
*Bug fixed - After exporting the data as tecplot format .dat, if we want to save the igw file, it will be saved as .dat instead of .igw.
*Updated - Kx', Ky' in (AIME) is shown with prime index (principal conductivities) but, in main window (parameter at cursor) it is shown as Kx Ky. (not consistent). The label also changed to principal conductivity.
*Updated - Velocity labels are seepage velocity (v/n) in the main window (parameter at cursor).
*Updated - Additional header in exported data for illustrating the time process (transient or steady condition), and if it is transient at which time data printed out to the file.
*Updated - Flow solver error tolerance changed from 0.0001 -> 0.00001.
*A bug in Randomwalk solver fixed.
*A bug fixed - When deleting nested submodels.
*A bug fixed - When deleting profile model (host models are submodels).
*A bug fixed - AMG solver was not working properly for transient flow.(1/14/2004)
*A bug fixed - When there is a submodel, decay coefficient stopped working for both main and submodel. (1/18/2004)
*A bug fixed - There was a synchronizing problem for transient flow simulation of main and submodel. (1/19/2004)
*A bug fixed - When disable all wells flag used, which was causing well name lost or double-counted.(1/20/2004)
*A bug fixed - For some specific moment, the data exchange between submodel and main was not correct for Head/Conc.(1/21/2004)
*Updated - Default grid changed from 40*30->50*37.
IGW 3.5.5 released (1/9/2004):
*A protection method applies when the input data are too bad to have a normal conditional simulation. (1/9/2004).
*Stop scanning conditional simulation field when igw discretizes unconditional simulation field. (1/9/2004).
*Bug in random field generation fixed. The random seed will keep untouched for each discretization. (1/8/2004).
IGW 3.5.4 released (12/12/2003):
*Add a refresh menu for realization window. (12/18/2003).
*Be able to the velocity vector thickness. (12/17/2003).
*Be able to import head/concentration data from a file for calibration purpose to the monitoring well. (12/17/2003).
*Be able to change drawoption by right click on the profile model or submodel. (12/17/2003).
*Cutline feature applies to submodel. (11/17/2003).
*We can choose to turnof pumping/injection/monitoring wells without having to delete them. (11/17/2003).
*In submodel drawing option, given value type was not working. (11/11/2003).
*Minimize window allowed for submodel /monitoring/... windows. (10/14/2003).
*New feature added in submodel head/conc monitoring well window. Now we can choose to skip the first figure point.(9/22/2003).
*Dry-wet cell scanning method updated. River cell will be treated differently. (7/7/2003).
*Well can be set invisible individually. (6/4/2003).
*Cutline feature added. This can be used to view the variable's distribution across a cutline.(5/30/2003).
*Bulkdensity unit should be 2650 kg/m3. (5/22/2003).
*Couple of new time step schemes added. Other than constant, we have linear, two-line, triple-line types for time step definition. (5/22/2003).
*Bug in current object renaming fixed. (4/28/2003).
*Well mapping method updated in cross-sectional model display.(4/10/2003).
*Bug in Calibration Head display fixed. (3/31/2003).
*Bug in covariance computation fixed. (3/31/2003).
*Bug in plume time display fixed. Sometimes the displayed time is not matching with plume movement. (3/30/2003).
*A bug fixed in deleting submodel (2/17/2003).
*Name-conflicting bug in reading scatter point data file fixed. (2/10/2003).
*Line type conductivity feature added. This feature can be used to simulate linear-distributed conductivity (like fracture etc.) (1/6/2003).
*Random sampling is sometimes out of the designated polygon -fixed. (12/17/2002)
IGW 3.5.1 released (10/14/2002):
*Recompiled on December 13, 2002 for the bug fixed: node edit did not response properly sometimes in submodel; polygon selection did not response properly sometimes in multi-model state; some typos in Interactive Wizard; regression procedure did not response properly sometimes.
*Recompiled on November 26, 2002 for the bug fixed: once monitoring well or mass balance objects renamed in Attribute Input and Model Explore window, corresponding forms would not be refreshed properly. You have 2 choices for the old files: 1) create it again in the new version of igw 3.5.1 or 2) in Attribute Input and Model Explore window, rename monitoring well & mass balance polygon objects ( you may also then choose to rename them back if you want). Then save this file. In the middle of renaming, the file will be updated.
*Recompiled on November 25, 2002 for some minor bugs fixed.
*Recompiled on November 14, 2002 for some minor bugs fixed.
*IGW file backward compatibility feature added from now, will be able to open file produced by IGW 3.5 or newer.
*Multi-scale random field generator added.
*Several typos fixed.
*Scales bug in profile model fixed.
IGW 3.5 released (10/4/2002):
*Profile model export data feature added.
*Delete submodel bug fixed.
*New splash form and about box added.
*Random field seed overflow bug fixed.
*Invert distance interpolation bug fixed.
*Variogram method updated.
*A dll bug - plume sometimes not working properly - fixed.
* ValUnits, VUComb,TransBMP,mProgressBar controls updated again for the bottleneck of system resource requirement, igw is working more efficient for old systems like Windows 95/98/ME or computers with physical memory less than 64MB.
IGW 3.4 released (9/4/2002):
*Loading basemap bug fixed.
*A bug of profile model in width setting for well capturing fixed.
*Decay coefficient feature added for chemical property simulation.
*Node(vertex) edit feature added for polygon/polyline objects.
*Right-click for direct "Refresh" and "Draw option" access added.
*A bug in creating multiple model feature (random seed checkbox) fixed.
*A bug in Random Walk feature fixed.
*Double-shade drawing bug fixed in "Init Particles" feature.
*4-point bilinear interpolation method updated.
*A bug in "Delete Profile" feature fixed.
*IGW file explanation added for each parameter used.
*Export as igd (interactive groundwater data) file feature added for parent/sub/profile models.
*Added monitoring well feature for submodel.
*Interactive Wizard feature added.
*Scale bar display unit is adjustable (cab be displayed as meters/feet/miles).
IGW 3.3 released (4/10/2002):
* Randomwalk bug fixed.
* Virogram feature added.
* New random generator added.
* Monitoring well bug fixed (time offset problem).
* DXF, SHP picture formats supported.
* Multi basemap supported.
* ValUnits, VUComb,TransBMP,mProgressBar controls updated.
* Tip of the day feature added.
* New tutorial induced.
* Multi Models feature updated.
* Submodel randonwalk bug (was not consistent with main model sometimes) fixed.
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